From 580d25a84baaa160b0afdc096e9aa1e8ca1c2d2b Mon Sep 17 00:00:00 2001 From: Stephen Caudle Date: Mon, 31 Oct 2011 00:16:37 -0400 Subject: Move STM32 example projects in family specific folders --- examples/stm32/f1/Makefile.include | 136 ++++++ examples/stm32/f1/lisa-m/fancyblink/Makefile | 23 + examples/stm32/f1/lisa-m/fancyblink/fancyblink.c | 67 +++ examples/stm32/f1/lisa-m/fancyblink/fancyblink.ld | 31 ++ examples/stm32/f1/lisa-m/usb_dfu/Makefile | 23 + examples/stm32/f1/lisa-m/usb_dfu/README | 7 + examples/stm32/f1/lisa-m/usb_dfu/usbdfu.c | 267 +++++++++++ examples/stm32/f1/lisa-m/usb_dfu/usbdfu.ld | 29 ++ examples/stm32/f1/lisa-m/usb_hid/Makefile | 23 + examples/stm32/f1/lisa-m/usb_hid/README | 7 + examples/stm32/f1/lisa-m/usb_hid/usbhid.c | 288 ++++++++++++ examples/stm32/f1/lisa-m/usb_hid/usbhid.ld | 31 ++ examples/stm32/f1/mb525/fancyblink/Makefile | 23 + examples/stm32/f1/mb525/fancyblink/README | 10 + examples/stm32/f1/mb525/fancyblink/fancyblink.c | 76 ++++ examples/stm32/f1/mb525/fancyblink/fancyblink.ld | 31 ++ examples/stm32/f1/mb525/pwmleds/Makefile | 23 + examples/stm32/f1/mb525/pwmleds/README | 10 + examples/stm32/f1/mb525/pwmleds/pwmleds.c | 496 +++++++++++++++++++++ examples/stm32/f1/mb525/pwmleds/pwmleds.ld | 31 ++ examples/stm32/f1/obldc/can/Makefile | 23 + examples/stm32/f1/obldc/can/can.c | 216 +++++++++ examples/stm32/f1/obldc/can/can.ld | 31 ++ examples/stm32/f1/obldc/led/Makefile | 23 + examples/stm32/f1/obldc/led/led.c | 71 +++ examples/stm32/f1/obldc/led/led.ld | 31 ++ examples/stm32/f1/obldc/pwmleds/Makefile | 23 + examples/stm32/f1/obldc/pwmleds/pwmleds.c | 485 ++++++++++++++++++++ examples/stm32/f1/obldc/pwmleds/pwmleds.ld | 31 ++ examples/stm32/f1/obldc/systick/Makefile | 23 + examples/stm32/f1/obldc/systick/systick.c | 90 ++++ examples/stm32/f1/obldc/systick/systick.ld | 31 ++ examples/stm32/f1/obldc/usart/Makefile | 23 + examples/stm32/f1/obldc/usart/usart.c | 90 ++++ examples/stm32/f1/obldc/usart/usart.ld | 31 ++ examples/stm32/f1/obldc/usart_irq/Makefile | 25 ++ examples/stm32/f1/obldc/usart_irq/usart_irq.c | 120 +++++ examples/stm32/f1/obldc/usart_irq/usart_irq.ld | 31 ++ .../stm32/f1/other/adc_temperature_sensor/Makefile | 23 + .../stm32/f1/other/adc_temperature_sensor/README | 10 + .../stm32/f1/other/adc_temperature_sensor/adc.c | 155 +++++++ .../stm32/f1/other/adc_temperature_sensor/adc.ld | 31 ++ examples/stm32/f1/other/dma_mem2mem/Makefile | 23 + examples/stm32/f1/other/dma_mem2mem/README | 11 + examples/stm32/f1/other/dma_mem2mem/dma.c | 133 ++++++ examples/stm32/f1/other/dma_mem2mem/dma.ld | 31 ++ examples/stm32/f1/other/dogm128/Makefile | 25 ++ examples/stm32/f1/other/dogm128/README | 7 + examples/stm32/f1/other/dogm128/dogm128.c | 291 ++++++++++++ examples/stm32/f1/other/dogm128/dogm128.h | 86 ++++ examples/stm32/f1/other/dogm128/main.c | 110 +++++ examples/stm32/f1/other/dogm128/main.ld | 31 ++ examples/stm32/f1/other/i2c_stts75_sensor/Makefile | 25 ++ examples/stm32/f1/other/i2c_stts75_sensor/README | 13 + .../f1/other/i2c_stts75_sensor/i2c_stts75_sensor.c | 146 ++++++ .../other/i2c_stts75_sensor/i2c_stts75_sensor.ld | 31 ++ examples/stm32/f1/other/i2c_stts75_sensor/stts75.c | 186 ++++++++ examples/stm32/f1/other/i2c_stts75_sensor/stts75.h | 39 ++ examples/stm32/f1/other/rtc/Makefile | 23 + examples/stm32/f1/other/rtc/README | 6 + examples/stm32/f1/other/rtc/rtc.c | 116 +++++ examples/stm32/f1/other/rtc/rtc.ld | 31 ++ examples/stm32/f1/other/systick/Makefile | 23 + examples/stm32/f1/other/systick/README | 7 + examples/stm32/f1/other/systick/systick.c | 75 ++++ examples/stm32/f1/other/systick/systick.ld | 31 ++ examples/stm32/f1/other/timer_interrupt/Makefile | 23 + examples/stm32/f1/other/timer_interrupt/README | 7 + examples/stm32/f1/other/timer_interrupt/timer.c | 85 ++++ examples/stm32/f1/other/timer_interrupt/timer.ld | 31 ++ examples/stm32/f1/other/usb_cdcacm/Makefile | 23 + examples/stm32/f1/other/usb_cdcacm/README | 7 + examples/stm32/f1/other/usb_cdcacm/cdcacm.c | 245 ++++++++++ examples/stm32/f1/other/usb_cdcacm/cdcacm.ld | 29 ++ examples/stm32/f1/other/usb_dfu/Makefile | 23 + examples/stm32/f1/other/usb_dfu/README | 7 + examples/stm32/f1/other/usb_dfu/usbdfu.c | 270 +++++++++++ examples/stm32/f1/other/usb_dfu/usbdfu.ld | 29 ++ examples/stm32/f1/other/usb_hid/Makefile | 23 + examples/stm32/f1/other/usb_hid/README | 7 + examples/stm32/f1/other/usb_hid/usbhid.c | 272 +++++++++++ examples/stm32/f1/other/usb_hid/usbhid.ld | 29 ++ examples/stm32/f1/stm32-discovery/button/Makefile | 23 + examples/stm32/f1/stm32-discovery/button/README | 8 + examples/stm32/f1/stm32-discovery/button/button.c | 76 ++++ examples/stm32/f1/stm32-discovery/button/button.ld | 31 ++ .../stm32/f1/stm32-discovery/fancyblink/Makefile | 23 + .../stm32/f1/stm32-discovery/fancyblink/README | 9 + .../f1/stm32-discovery/fancyblink/fancyblink.c | 61 +++ .../f1/stm32-discovery/fancyblink/fancyblink.ld | 31 ++ .../stm32/f1/stm32-discovery/miniblink/Makefile | 23 + examples/stm32/f1/stm32-discovery/miniblink/README | 9 + .../stm32/f1/stm32-discovery/miniblink/miniblink.c | 71 +++ .../f1/stm32-discovery/miniblink/miniblink.ld | 31 ++ examples/stm32/f1/stm32-discovery/rtc/Makefile | 23 + examples/stm32/f1/stm32-discovery/rtc/README | 9 + examples/stm32/f1/stm32-discovery/rtc/rtc.c | 129 ++++++ examples/stm32/f1/stm32-discovery/rtc/rtc.ld | 31 ++ examples/stm32/f1/stm32-discovery/usart/Makefile | 23 + examples/stm32/f1/stm32-discovery/usart/README | 12 + examples/stm32/f1/stm32-discovery/usart/usart.c | 87 ++++ examples/stm32/f1/stm32-discovery/usart/usart.ld | 31 ++ examples/stm32/f1/stm32-h103/button/Makefile | 23 + examples/stm32/f1/stm32-h103/button/button.c | 79 ++++ examples/stm32/f1/stm32-h103/button/button.ld | 31 ++ examples/stm32/f1/stm32-h103/exti_both/Makefile | 23 + examples/stm32/f1/stm32-h103/exti_both/exti_both.c | 92 ++++ .../stm32/f1/stm32-h103/exti_both/exti_both.ld | 31 ++ .../f1/stm32-h103/exti_rising_falling/Makefile | 23 + .../exti_rising_falling/exti_rising_falling.c | 98 ++++ .../exti_rising_falling/exti_rising_falling.ld | 31 ++ examples/stm32/f1/stm32-h103/fancyblink/Makefile | 23 + examples/stm32/f1/stm32-h103/fancyblink/README | 10 + .../stm32/f1/stm32-h103/fancyblink/fancyblink.c | 55 +++ .../stm32/f1/stm32-h103/fancyblink/fancyblink.ld | 31 ++ examples/stm32/f1/stm32-h103/led_stripe/Makefile | 23 + .../stm32/f1/stm32-h103/led_stripe/led_stripe.c | 234 ++++++++++ .../stm32/f1/stm32-h103/led_stripe/led_stripe.ld | 31 ++ examples/stm32/f1/stm32-h103/miniblink/Makefile | 23 + examples/stm32/f1/stm32-h103/miniblink/README | 10 + examples/stm32/f1/stm32-h103/miniblink/miniblink.c | 71 +++ .../stm32/f1/stm32-h103/miniblink/miniblink.ld | 31 ++ examples/stm32/f1/stm32-h103/pwm_6step/Makefile | 23 + examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.c | 409 +++++++++++++++++ .../stm32/f1/stm32-h103/pwm_6step/pwm_6step.ld | 31 ++ examples/stm32/f1/stm32-h103/spi/Makefile | 23 + examples/stm32/f1/stm32-h103/spi/README | 8 + examples/stm32/f1/stm32-h103/spi/spi.c | 50 +++ examples/stm32/f1/stm32-h103/spi/spi.ld | 31 ++ examples/stm32/f1/stm32-h103/timer/Makefile | 23 + examples/stm32/f1/stm32-h103/timer/timer.c | 183 ++++++++ examples/stm32/f1/stm32-h103/timer/timer.ld | 31 ++ examples/stm32/f1/stm32-h103/traceswo/Makefile | 23 + examples/stm32/f1/stm32-h103/traceswo/README | 11 + examples/stm32/f1/stm32-h103/traceswo/traceswo.c | 100 +++++ examples/stm32/f1/stm32-h103/traceswo/traceswo.ld | 31 ++ examples/stm32/f1/stm32-h103/usart/Makefile | 23 + examples/stm32/f1/stm32-h103/usart/README | 13 + examples/stm32/f1/stm32-h103/usart/usart.c | 119 +++++ examples/stm32/f1/stm32-h103/usart/usart.ld | 31 ++ examples/stm32/f1/stm32-h103/usart_irq/Makefile | 23 + examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c | 119 +++++ .../stm32/f1/stm32-h103/usart_irq/usart_irq.ld | 31 ++ .../stm32/f1/stm32-h103/usart_irq_printf/Makefile | 23 + .../stm32-h103/usart_irq_printf/usart_irq_printf.c | 272 +++++++++++ .../usart_irq_printf/usart_irq_printf.ld | 31 ++ examples/stm32/f1/stm32-h103/usart_printf/Makefile | 23 + .../f1/stm32-h103/usart_printf/usart_printf.c | 108 +++++ .../f1/stm32-h103/usart_printf/usart_printf.ld | 31 ++ examples/stm32/f1/stm32-h103/usb_cdcacm/Makefile | 23 + examples/stm32/f1/stm32-h103/usb_cdcacm/README | 7 + examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c | 246 ++++++++++ examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.ld | 31 ++ examples/stm32/f1/stm32-h103/usb_dfu/Makefile | 23 + examples/stm32/f1/stm32-h103/usb_dfu/README | 7 + examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c | 261 +++++++++++ examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.ld | 29 ++ examples/stm32/f1/stm32-h103/usb_hid/Makefile | 23 + examples/stm32/f1/stm32-h103/usb_hid/README | 7 + examples/stm32/f1/stm32-h103/usb_hid/usbhid.c | 272 +++++++++++ examples/stm32/f1/stm32-h103/usb_hid/usbhid.ld | 31 ++ examples/stm32/f1/stm32-h103/usb_iap/Makefile | 23 + examples/stm32/f1/stm32-h103/usb_iap/README | 8 + examples/stm32/f1/stm32-h103/usb_iap/usbiap.c | 270 +++++++++++ examples/stm32/f1/stm32-h103/usb_iap/usbiap.ld | 31 ++ examples/stm32/f1/stm32-h107/fancyblink/Makefile | 23 + examples/stm32/f1/stm32-h107/fancyblink/README | 10 + .../stm32/f1/stm32-h107/fancyblink/fancyblink.c | 58 +++ .../stm32/f1/stm32-h107/fancyblink/fancyblink.ld | 31 ++ examples/stm32/f1/stm32-h107/usb_simple/Makefile | 23 + examples/stm32/f1/stm32-h107/usb_simple/README | 10 + .../stm32/f1/stm32-h107/usb_simple/usb_simple.c | 117 +++++ .../stm32/f1/stm32-h107/usb_simple/usb_simple.ld | 31 ++ 173 files changed, 10992 insertions(+) create mode 100644 examples/stm32/f1/Makefile.include create mode 100644 examples/stm32/f1/lisa-m/fancyblink/Makefile create mode 100644 examples/stm32/f1/lisa-m/fancyblink/fancyblink.c create mode 100644 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examples/stm32/f1/stm32-h107/fancyblink/fancyblink.ld create mode 100644 examples/stm32/f1/stm32-h107/usb_simple/Makefile create mode 100644 examples/stm32/f1/stm32-h107/usb_simple/README create mode 100644 examples/stm32/f1/stm32-h107/usb_simple/usb_simple.c create mode 100644 examples/stm32/f1/stm32-h107/usb_simple/usb_simple.ld (limited to 'examples/stm32/f1') diff --git a/examples/stm32/f1/Makefile.include b/examples/stm32/f1/Makefile.include new file mode 100644 index 0000000..cf8644f --- /dev/null +++ b/examples/stm32/f1/Makefile.include @@ -0,0 +1,136 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## Copyright (C) 2010 Piotr Esden-Tempski +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +PREFIX ?= arm-none-eabi +#PREFIX ?= arm-elf +CC = $(PREFIX)-gcc +LD = $(PREFIX)-gcc +OBJCOPY = $(PREFIX)-objcopy +OBJDUMP = $(PREFIX)-objdump +GDB = $(PREFIX)-gdb +# Uncomment this line if you want to use the installed (not local) library. +#TOOLCHAIN_DIR := $(shell dirname `which $(CC)`)/../$(PREFIX) +TOOLCHAIN_DIR = ../../../../.. +CFLAGS += -Os -g -Wall -Wextra -I$(TOOLCHAIN_DIR)/include \ + -fno-common -mcpu=cortex-m3 -mthumb -msoft-float -MD -DSTM32F1 +LDSCRIPT = $(BINARY).ld +LDFLAGS += -lc -lnosys -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/stm32/f1 \ + -T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections \ + -mthumb -march=armv7 -mfix-cortex-m3-ldrd -msoft-float +OBJS += $(BINARY).o + +OOCD ?= openocd +OOCD_INTERFACE ?= flossjtag +OOCD_BOARD ?= olimex_stm32_h103 +# Black magic probe specific variables +# Set the BMP_PORT to a serial port and then BMP is used for flashing +BMP_PORT ?= + +# Be silent per default, but 'make V=1' will show all compiler calls. +ifneq ($(V),1) +Q := @ +NULL := 2>/dev/null +else +LDFLAGS += -Wl,--print-gc-sections +endif + +.SUFFIXES: .elf .bin .hex .srec .list .images +.SECONDEXPANSION: +.SECONDARY: + +all: images + +images: $(BINARY).images +flash: $(BINARY).flash + +%.images: %.bin %.hex %.srec %.list + @#echo "*** $* images generated ***" + +%.bin: %.elf + @#printf " OBJCOPY $(*).bin\n" + $(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin + +%.hex: %.elf + @#printf " OBJCOPY $(*).hex\n" + $(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex + +%.srec: %.elf + @#printf " OBJCOPY $(*).srec\n" + $(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec + +%.list: %.elf + @#printf " OBJDUMP $(*).list\n" + $(Q)$(OBJDUMP) -S $(*).elf > $(*).list + +%.elf: $(OBJS) $(LDSCRIPT) $(TOOLCHAIN_DIR)/lib/stm32/f1/libopencm3_stm32f1.a + @#printf " LD $(subst $(shell pwd)/,,$(@))\n" + $(Q)$(LD) -o $(*).elf $(OBJS) -lopencm3_stm32f1 $(LDFLAGS) + +%.o: %.c Makefile + @#printf " CC $(subst $(shell pwd)/,,$(@))\n" + $(Q)$(CC) $(CFLAGS) -o $@ -c $< + +clean: + $(Q)rm -f *.o + $(Q)rm -f *.d + $(Q)rm -f *.elf + $(Q)rm -f *.bin + $(Q)rm -f *.hex + $(Q)rm -f *.srec + $(Q)rm -f *.list + +ifeq ($(BMP_PORT),) +ifeq ($(OOCD_SERIAL),) +%.flash: %.hex + @printf " FLASH $<\n" + @# IMPORTANT: Don't use "resume", only "reset" will work correctly! + $(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \ + -f board/$(OOCD_BOARD).cfg \ + -c "init" -c "reset init" \ + -c "stm32x mass_erase 0" \ + -c "flash write_image $(*).hex" \ + -c "reset" \ + -c "shutdown" $(NULL) +else +%.flash: %.hex + @printf " FLASH $<\n" + @# IMPORTANT: Don't use "resume", only "reset" will work correctly! + $(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \ + -f board/$(OOCD_BOARD).cfg \ + -c "ft2232_serial $(OOCD_SERIAL)" \ + -c "init" -c "reset init" \ + -c "stm32x mass_erase 0" \ + -c "flash write_image $(*).hex" \ + -c "reset" \ + -c "shutdown" $(NULL) +endif +else +%.flash: %.elf + @echo " GDB $(*).elf (flash)" + $(Q)$(GDB) --batch \ + -ex 'target extended-remote $(BMP_PORT)' \ + -x $(TOOLCHAIN_DIR)/scripts/black_magic_probe_flash.scr \ + $(*).elf +endif + +.PHONY: images clean + +-include $(OBJS:.o=.d) + diff --git a/examples/stm32/f1/lisa-m/fancyblink/Makefile b/examples/stm32/f1/lisa-m/fancyblink/Makefile new file mode 100644 index 0000000..1baec4d --- /dev/null +++ b/examples/stm32/f1/lisa-m/fancyblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = fancyblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/lisa-m/fancyblink/fancyblink.c b/examples/stm32/f1/lisa-m/fancyblink/fancyblink.c new file mode 100644 index 0000000..6d5fbe3 --- /dev/null +++ b/examples/stm32/f1/lisa-m/fancyblink/fancyblink.c @@ -0,0 +1,67 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * Copyright (C) 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_12mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO13); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO4); + + AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_FULL_SWJ_NO_JNTRST; + + /* preconfigure the led's */ + gpio_set(GPIOB, GPIO4); /* switch off led */ + gpio_clear(GPIOC, GPIO13); /* switch on led */ +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO13); /* LED on/off */ + gpio_toggle(GPIOB, GPIO4); /* LED on/off */ + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/lisa-m/fancyblink/fancyblink.ld b/examples/stm32/f1/lisa-m/fancyblink/fancyblink.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/lisa-m/fancyblink/fancyblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/lisa-m/usb_dfu/Makefile b/examples/stm32/f1/lisa-m/usb_dfu/Makefile new file mode 100644 index 0000000..48e2d6b --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_dfu/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbdfu + +include ../../Makefile.include + diff --git a/examples/stm32/f1/lisa-m/usb_dfu/README b/examples/stm32/f1/lisa-m/usb_dfu/README new file mode 100644 index 0000000..9c0169a --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_dfu/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Device Firmware Upgrade (DFU) bootloader +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.c b/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.c new file mode 100644 index 0000000..bb038f2 --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.c @@ -0,0 +1,267 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +#define APP_ADDRESS 0x08002000 + +/* Commands sent with wBlockNum == 0 as per ST implementation. */ +#define CMD_SETADDR 0x21 +#define CMD_ERASE 0x41 + +/* We need a special large control buffer for this device: */ +u8 usbd_control_buffer[1024]; + +static enum dfu_state usbdfu_state = STATE_DFU_IDLE; + +static struct { + u8 buf[sizeof(usbd_control_buffer)]; + u16 len; + u32 addr; + u16 blocknum; +} prog; + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0xDF11, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, /* Device Firmware Upgrade */ + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 2, + + /* The ST Microelectronics DfuSe application needs this string. + * The format isn't documented... */ + .iInterface = 4, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &iface, +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "DFU Demo", + "DEMO", + /* This string is used by ST Microelectronics' DfuSe utility */ + "@Internal Flash /0x08000000/8*001Ka,56*001Kg" +}; + +static u8 usbdfu_getstatus(u32 *bwPollTimeout) +{ + switch(usbdfu_state) { + case STATE_DFU_DNLOAD_SYNC: + usbdfu_state = STATE_DFU_DNBUSY; + *bwPollTimeout = 100; + return DFU_STATUS_OK; + + case STATE_DFU_MANIFEST_SYNC: + /* Device will reset when read is complete */ + usbdfu_state = STATE_DFU_MANIFEST; + return DFU_STATUS_OK; + + default: + return DFU_STATUS_OK; + } +} + +static void usbdfu_getstatus_complete(struct usb_setup_data *req) +{ + int i; + (void)req; + + switch(usbdfu_state) { + case STATE_DFU_DNBUSY: + + flash_unlock(); + if(prog.blocknum == 0) { + switch(prog.buf[0]) { + case CMD_ERASE: + flash_erase_page(*(u32*)(prog.buf+1)); + case CMD_SETADDR: + prog.addr = *(u32*)(prog.buf+1); + } + } else { + u32 baseaddr = prog.addr + + ((prog.blocknum - 2) * + dfu_function.wTransferSize); + for(i = 0; i < prog.len; i += 2) + flash_program_half_word(baseaddr + i, + *(u16*)(prog.buf+i)); + } + flash_lock(); + + /* We jump straight to dfuDNLOAD-IDLE, + * skipping dfuDNLOAD-SYNC + */ + usbdfu_state = STATE_DFU_DNLOAD_IDLE; + return; + + case STATE_DFU_MANIFEST: + /* USB device must detach, we just reset... */ + scb_reset_system(); + return; /* Will never return */ + default: + return; + } +} + +static int usbdfu_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + + if((req->bmRequestType & 0x7F) != 0x21) + return 0; /* Only accept class request */ + + switch(req->bRequest) { + case DFU_DNLOAD: + if((len == NULL) || (*len == 0)) { + usbdfu_state = STATE_DFU_MANIFEST_SYNC; + return 1; + } else { + /* Copy download data for use on GET_STATUS */ + prog.blocknum = req->wValue; + prog.len = *len; + memcpy(prog.buf, *buf, *len); + usbdfu_state = STATE_DFU_DNLOAD_SYNC; + return 1; + } + case DFU_CLRSTATUS: + /* Clear error and return to dfuIDLE */ + if(usbdfu_state == STATE_DFU_ERROR) + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_ABORT: + /* Abort returns to dfuIDLE state */ + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_UPLOAD: + /* Upload not supported for now */ + return 0; + case DFU_GETSTATUS: { + u32 bwPollTimeout = 0; /* 24-bit integer in DFU class spec */ + + (*buf)[0] = usbdfu_getstatus(&bwPollTimeout); + (*buf)[1] = bwPollTimeout & 0xFF; + (*buf)[2] = (bwPollTimeout >> 8) & 0xFF; + (*buf)[3] = (bwPollTimeout >> 16) & 0xFF; + (*buf)[4] = usbdfu_state; + (*buf)[5] = 0; /* iString not used here */ + *len = 6; + + *complete = usbdfu_getstatus_complete; + + return 1; + } + case DFU_GETSTATE: + /* Return state with no state transision */ + *buf[0] = usbdfu_state; + *len = 1; + return 1; + } + + return 0; +} + +int main(void) +{ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + if(!gpio_get(GPIOA, GPIO10)) { + /* Boot the application if it's valid */ + if((*(volatile u32*)APP_ADDRESS & 0x2FFE0000) == 0x20000000) { + /* Set vector table base address */ + SCB_VTOR = APP_ADDRESS & 0xFFFF; + /* Initialise master stack pointer */ + asm volatile ("msr msp, %0"::"g" + (*(volatile u32*)APP_ADDRESS)); + /* Jump to application */ + (*(void(**)())(APP_ADDRESS + 4))(); + } + } + + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + gpio_set(GPIOC, GPIO2); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO2); + + usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings); + usbd_set_control_buffer_size(sizeof(usbd_control_buffer)); + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + usbdfu_control_request); + + gpio_clear(GPIOC, GPIO2); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.ld b/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.ld new file mode 100644 index 0000000..6a01797 --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_dfu/usbdfu.ld @@ -0,0 +1,29 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 8K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/lisa-m/usb_hid/Makefile b/examples/stm32/f1/lisa-m/usb_hid/Makefile new file mode 100644 index 0000000..d831e9e --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_hid/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbhid + +include ../../Makefile.include + diff --git a/examples/stm32/f1/lisa-m/usb_hid/README b/examples/stm32/f1/lisa-m/usb_hid/README new file mode 100644 index 0000000..48a9b39 --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_hid/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Human Interface Device (HID) +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/lisa-m/usb_hid/usbhid.c b/examples/stm32/f1/lisa-m/usb_hid/usbhid.c new file mode 100644 index 0000000..e9b9099 --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_hid/usbhid.c @@ -0,0 +1,288 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * Copyright (C) 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Define this to include the DFU APP interface. */ +#define INCLUDE_DFU_INTERFACE + +#ifdef INCLUDE_DFU_INTERFACE +#include +#include +#endif + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5710, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +/* I have no idea what this means. I haven't read the HID spec. */ +static const u8 hid_report_descriptor[] = { + 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, + 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, + 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, + 0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, + 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x09, 0x38, + 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x03, + 0x81, 0x06, 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09, + 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, + 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1, + 0x01, 0xc0 +}; + +static const struct { + struct usb_hid_descriptor hid_descriptor; + struct { + u8 bReportDescriptorType; + u16 wDescriptorLength; + } __attribute__((packed)) hid_report; +} __attribute__((packed)) hid_function = { + .hid_descriptor = { + .bLength = sizeof(hid_function), + .bDescriptorType = USB_DT_HID, + .bcdHID = 0x0100, + .bCountryCode = 0, + .bNumDescriptors = 1, + }, + .hid_report = { + .bReportDescriptorType = USB_DT_REPORT, + .wDescriptorLength = sizeof(hid_report_descriptor), + } +}; + +const struct usb_endpoint_descriptor hid_endpoint = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x81, + .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT, + .wMaxPacketSize = 4, + .bInterval = 0x20, +}; + +const struct usb_interface_descriptor hid_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_HID, + .bInterfaceSubClass = 1, /* boot */ + .bInterfaceProtocol = 2, /* mouse */ + .iInterface = 0, + + .endpoint = &hid_endpoint, + + .extra = &hid_function, + .extralen = sizeof(hid_function), +}; + +#ifdef INCLUDE_DFU_INTERFACE +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor dfu_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 1, + .iInterface = 0, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; +#endif + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &hid_iface, +#ifdef INCLUDE_DFU_INTERFACE +}, { + .num_altsetting = 1, + .altsetting = &dfu_iface, +#endif +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, +#ifdef INCLUDE_DFU_INTERFACE + .bNumInterfaces = 2, +#else + .bNumInterfaces = 1, +#endif + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "HID Demo", + "DEMO", +}; + +static int hid_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)complete; + + if((req->bmRequestType != 0x81) || + (req->bRequest != USB_REQ_GET_DESCRIPTOR) || + (req->wValue != 0x2200)) + return 0; + + /* Handle the HID report descriptor */ + *buf = (u8*)hid_report_descriptor; + *len = sizeof(hid_report_descriptor); + + return 1; +} + +#ifdef INCLUDE_DFU_INTERFACE +static void dfu_detach_complete(struct usb_setup_data *req) +{ + (void)req; + + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); + gpio_set(GPIOA, GPIO10); + scb_reset_core(); +} + +static int dfu_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)buf; + (void)len; + + if((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH)) + return 0; /* Only accept class request */ + + *complete = dfu_detach_complete; + + return 1; +} +#endif + +static void hid_set_config(u16 wValue) +{ + (void)wValue; + + usbd_ep_setup(0x81, USB_ENDPOINT_ATTR_INTERRUPT, 4, NULL); + + usbd_register_control_callback( + USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + hid_control_request); +#ifdef INCLUDE_DFU_INTERFACE + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + dfu_control_request); +#endif + + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_reload(100000); + systick_interrupt_enable(); + systick_counter_enable(); +} + +int main(void) +{ + rcc_clock_setup_in_hse_12mhz_out_72mhz(); + + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* USB_DETECT as input */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO8); + + /* green LED off, as output */ + gpio_set(GPIOC, GPIO2); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO2); + + + usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings); + usbd_register_set_config_callback(hid_set_config); + + /* delay some seconds to show that pull-up switch works */ + {int i; for (i=0;i<0x800000;i++) asm("nop");} + + /* wait for USB Vbus */ + while(gpio_get(GPIOA, GPIO8) == 0) asm("nop"); + + /* green LED on, connect USB */ + gpio_clear(GPIOC, GPIO2); + //OTG_FS_GCCFG &= ~OTG_FS_GCCFG_VBUSBSEN; + + while (1) + usbd_poll(); +} + +void sys_tick_handler(void) +{ + static int x = 0; + static int dir = 1; + u8 buf[4] = {0, 0, 0, 0}; + + buf[1] = dir; + x += dir; + if(x > 30) dir = -dir; + if(x < -30) dir = -dir; + + usbd_ep_write_packet(0x81, buf, 4); +} diff --git a/examples/stm32/f1/lisa-m/usb_hid/usbhid.ld b/examples/stm32/f1/lisa-m/usb_hid/usbhid.ld new file mode 100644 index 0000000..d0df9e6 --- /dev/null +++ b/examples/stm32/f1/lisa-m/usb_hid/usbhid.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/mb525/fancyblink/Makefile b/examples/stm32/f1/mb525/fancyblink/Makefile new file mode 100644 index 0000000..1baec4d --- /dev/null +++ b/examples/stm32/f1/mb525/fancyblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = fancyblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/mb525/fancyblink/README b/examples/stm32/f1/mb525/fancyblink/README new file mode 100644 index 0000000..226cb21 --- /dev/null +++ b/examples/stm32/f1/mb525/fancyblink/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is a blink example program using libopencm3. + +It's intended for the ST STM32-based MB525 eval board (see +http://www.st.com/stonline/products/literature/um/13472.htm for details). +It should blink the LED on the board. + diff --git a/examples/stm32/f1/mb525/fancyblink/fancyblink.c b/examples/stm32/f1/mb525/fancyblink/fancyblink.c new file mode 100644 index 0000000..54ef47c --- /dev/null +++ b/examples/stm32/f1/mb525/fancyblink/fancyblink.c @@ -0,0 +1,76 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); +} + +void gpio_setup(void) +{ + /* Set GPIO6 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6 | GPIO7 | GPIO8 | GPIO9); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Blink the LED (PC12) on the board. */ + gpio_set(GPIOC, GPIO6); + while (1) { + gpio_toggle(GPIOC, GPIO6); /* LED on/off */ + gpio_toggle(GPIOC, GPIO7); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOC, GPIO7); /* LED on/off */ + gpio_toggle(GPIOC, GPIO8); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOC, GPIO8); /* LED on/off */ + gpio_toggle(GPIOC, GPIO9); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOC, GPIO8); /* LED on/off */ + gpio_toggle(GPIOC, GPIO9); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOC, GPIO7); /* LED on/off */ + gpio_toggle(GPIOC, GPIO8); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOC, GPIO6); /* LED on/off */ + gpio_toggle(GPIOC, GPIO7); /* LED on/off */ + for (i = 0; i < 4000000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/mb525/fancyblink/fancyblink.ld b/examples/stm32/f1/mb525/fancyblink/fancyblink.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/mb525/fancyblink/fancyblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/mb525/pwmleds/Makefile b/examples/stm32/f1/mb525/pwmleds/Makefile new file mode 100644 index 0000000..8ae74d6 --- /dev/null +++ b/examples/stm32/f1/mb525/pwmleds/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = pwmleds + +include ../../Makefile.include + diff --git a/examples/stm32/f1/mb525/pwmleds/README b/examples/stm32/f1/mb525/pwmleds/README new file mode 100644 index 0000000..b2a6d95 --- /dev/null +++ b/examples/stm32/f1/mb525/pwmleds/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is a PWM based LED fading example using libopencm3. + +It's intended for the ST STM32-based MB525 eval board (see +http://www.st.com/stonline/products/literature/um/13472.htm for details). +It should blink the LED on the board. + diff --git a/examples/stm32/f1/mb525/pwmleds/pwmleds.c b/examples/stm32/f1/mb525/pwmleds/pwmleds.c new file mode 100644 index 0000000..5505231 --- /dev/null +++ b/examples/stm32/f1/mb525/pwmleds/pwmleds.c @@ -0,0 +1,496 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +// #define COMPARE +// #define MOVING_FADE +#define KITT + +#ifdef COMPARE +#define GAMMA_LINEAR +#define GAMMA_1_3 +#define GAMMA_2_5 +#define GAMMA_3_0 +#endif + +#ifdef MOVING_FADE +#define GAMMA_2_2 +#define GAMMA_TABLE gamma_table_2_2 +#endif + +#ifdef KITT +#define GAMMA_2_5 +#define GAMMA_TABLE gamma_table_2_5 +#endif + +/* + * Gamma correction table + * + * The nonlinear tables are calculating with the function: + * Iout = Iin ** gamma + */ +#ifdef GAMMA_LINEAR +static const u16 gamma_table_linear[] = { + 1, 4, 9, 17, 26, 37, 51, 67, + 84, 104, 126, 149, 175, 203, 233, 265, + 299, 334, 372, 412, 454, 499, 545, 593, + 643, 695, 749, 805, 864, 924, 986, 1050, + 1116, 1185, 1255, 1327, 1402, 1478, 1556, 1637, + 1719, 1803, 1890, 1978, 2068, 2161, 2255, 2352, + 2450, 2550, 2653, 2757, 2864, 2972, 3082, 3195, + 3309, 3426, 3544, 3664, 3787, 3911, 4038, 4166, + 4296, 4429, 4563, 4700, 4838, 4978, 5121, 5265, + 5411, 5560, 5710, 5862, 6017, 6173, 6331, 6492, + 6654, 6818, 6985, 7153, 7323, 7495, 7670, 7846, + 8024, 8204, 8387, 8571, 8757, 8945, 9135, 9327, + 9521, 9718, 9916, 10116, 10318, 10522, 10728, 10936, + 11146, 11358, 11572, 11788, 12006, 12226, 12448, 12672, + 12897, 13125, 13355, 13587, 13821, 14057, 14294, 14534, + 14776, 15020, 15265, 15513, 15763, 16014, 16268, 16524, + 16781, 17041, 17302, 17566, 17831, 18099, 18368, 18640, + 18913, 19189, 19466, 19745, 20027, 20310, 20595, 20883, + 21172, 21463, 21756, 22051, 22349, 22648, 22949, 23252, + 23557, 23864, 24173, 24484, 24797, 25112, 25429, 25748, + 26069, 26391, 26716, 27043, 27372, 27702, 28035, 28370, + 28707, 29045, 29386, 29728, 30073, 30419, 30768, 31118, + 31471, 31825, 32182, 32540, 32900, 33263, 33627, 33993, + 34361, 34731, 35104, 35478, 35854, 36232, 36612, 36994, + 37378, 37764, 38152, 38542, 38933, 39327, 39723, 40121, + 40521, 40922, 41326, 41732, 42139, 42549, 42960, 43374, + 43789, 44207, 44626, 45048, 45471, 45896, 46324, 46753, + 47184, 47617, 48052, 48490, 48929, 49370, 49813, 50258, + 50705, 51154, 51604, 52057, 52512, 52969, 53428, 53888, + 54351, 54816, 55282, 55751, 56222, 56694, 57169, 57645, + 58123, 58604, 59086, 59570, 60057, 60545, 61035, 61527, + 62021, 62517, 63016, 63516, 64018, 64521, 65027, 65535, +}; +#endif + +#ifdef GAMMA_1_3 +static const u16 gamma_table_1_3[] = { + /* Gamma 1.3 */ + 0, 49, 120, 203, 296, 395, 501, 612, + 728, 848, 973, 1101, 1233, 1368, 1506, 1648, + 1792, 1939, 2088, 2241, 2395, 2552, 2711, 2872, + 3036, 3201, 3369, 3538, 3709, 3882, 4057, 4234, + 4412, 4592, 4774, 4957, 5142, 5329, 5517, 5706, + 5897, 6090, 6283, 6479, 6675, 6873, 7072, 7273, + 7475, 7678, 7882, 8088, 8294, 8502, 8711, 8922, + 9133, 9346, 9559, 9774, 9990, 10207, 10425, 10644, + 10864, 11086, 11308, 11531, 11755, 11981, 12207, 12434, + 12662, 12891, 13121, 13352, 13584, 13817, 14051, 14285, + 14521, 14757, 14994, 15233, 15472, 15712, 15952, 16194, + 16436, 16679, 16923, 17168, 17414, 17660, 17908, 18156, + 18405, 18654, 18905, 19156, 19408, 19660, 19914, 20168, + 20423, 20679, 20935, 21192, 21450, 21708, 21968, 22228, + 22488, 22750, 23012, 23275, 23538, 23802, 24067, 24332, + 24599, 24865, 25133, 25401, 25670, 25939, 26209, 26480, + 26751, 27023, 27296, 27569, 27843, 28118, 28393, 28669, + 28945, 29222, 29500, 29778, 30057, 30336, 30616, 30897, + 31178, 31460, 31742, 32025, 32308, 32592, 32877, 33162, + 33448, 33734, 34021, 34309, 34597, 34885, 35175, 35464, + 35754, 36045, 36337, 36628, 36921, 37214, 37507, 37801, + 38096, 38391, 38686, 38982, 39279, 39576, 39874, 40172, + 40471, 40770, 41070, 41370, 41670, 41972, 42273, 42576, + 42878, 43181, 43485, 43789, 44094, 44399, 44705, 45011, + 45317, 45625, 45932, 46240, 46549, 46858, 47167, 47477, + 47787, 48098, 48409, 48721, 49034, 49346, 49659, 49973, + 50287, 50602, 50917, 51232, 51548, 51864, 52181, 52498, + 52816, 53134, 53452, 53771, 54091, 54411, 54731, 55052, + 55373, 55694, 56016, 56339, 56662, 56985, 57309, 57633, + 57957, 58282, 58608, 58933, 59260, 59586, 59913, 60241, + 60569, 60897, 61226, 61555, 61884, 62214, 62545, 62875, + 63206, 63538, 63870, 64202, 64535, 64868, 65201, 65535, +}; +#endif + +#ifdef GAMMA_2_2 +static const u16 gamma_table_2_2[] = { + 0, 0, 2, 4, 7, 11, 17, 24, + 32, 42, 53, 65, 79, 94, 111, 129, + 148, 169, 192, 216, 242, 270, 299, 330, + 362, 396, 432, 469, 508, 549, 591, 635, + 681, 729, 779, 830, 883, 938, 995, 1053, + 1113, 1175, 1239, 1305, 1373, 1443, 1514, 1587, + 1663, 1740, 1819, 1900, 1983, 2068, 2155, 2243, + 2334, 2427, 2521, 2618, 2717, 2817, 2920, 3024, + 3131, 3240, 3350, 3463, 3578, 3694, 3813, 3934, + 4057, 4182, 4309, 4438, 4570, 4703, 4838, 4976, + 5115, 5257, 5401, 5547, 5695, 5845, 5998, 6152, + 6309, 6468, 6629, 6792, 6957, 7124, 7294, 7466, + 7640, 7816, 7994, 8175, 8358, 8543, 8730, 8919, + 9111, 9305, 9501, 9699, 9900, 10102, 10307, 10515, + 10724, 10936, 11150, 11366, 11585, 11806, 12029, 12254, + 12482, 12712, 12944, 13179, 13416, 13655, 13896, 14140, + 14386, 14635, 14885, 15138, 15394, 15652, 15912, 16174, + 16439, 16706, 16975, 17247, 17521, 17798, 18077, 18358, + 18642, 18928, 19216, 19507, 19800, 20095, 20393, 20694, + 20996, 21301, 21609, 21919, 22231, 22546, 22863, 23182, + 23504, 23829, 24156, 24485, 24817, 25151, 25487, 25826, + 26168, 26512, 26858, 27207, 27558, 27912, 28268, 28627, + 28988, 29351, 29717, 30086, 30457, 30830, 31206, 31585, + 31966, 32349, 32735, 33124, 33514, 33908, 34304, 34702, + 35103, 35507, 35913, 36321, 36732, 37146, 37562, 37981, + 38402, 38825, 39252, 39680, 40112, 40546, 40982, 41421, + 41862, 42306, 42753, 43202, 43654, 44108, 44565, 45025, + 45487, 45951, 46418, 46888, 47360, 47835, 48313, 48793, + 49275, 49761, 50249, 50739, 51232, 51728, 52226, 52727, + 53230, 53736, 54245, 54756, 55270, 55787, 56306, 56828, + 57352, 57879, 58409, 58941, 59476, 60014, 60554, 61097, + 61642, 62190, 62741, 63295, 63851, 64410, 64971, 65535 +}; +#endif + +#ifdef GAMMA_2_5 +static const u16 gamma_table_2_5[] = { + /* gamma = 2.5 */ + 0, 0, 0, 1, 2, 4, 6, 8, + 11, 15, 20, 25, 31, 38, 46, 55, + 65, 75, 87, 99, 113, 128, 143, 160, + 178, 197, 218, 239, 262, 286, 311, 338, + 366, 395, 425, 457, 491, 526, 562, 599, + 639, 679, 722, 765, 811, 857, 906, 956, + 1007, 1061, 1116, 1172, 1231, 1291, 1352, 1416, + 1481, 1548, 1617, 1688, 1760, 1834, 1910, 1988, + 2068, 2150, 2233, 2319, 2407, 2496, 2587, 2681, + 2776, 2874, 2973, 3075, 3178, 3284, 3391, 3501, + 3613, 3727, 3843, 3961, 4082, 4204, 4329, 4456, + 4585, 4716, 4850, 4986, 5124, 5264, 5407, 5552, + 5699, 5849, 6001, 6155, 6311, 6470, 6632, 6795, + 6962, 7130, 7301, 7475, 7650, 7829, 8009, 8193, + 8379, 8567, 8758, 8951, 9147, 9345, 9546, 9750, + 9956, 10165, 10376, 10590, 10806, 11025, 11247, 11472, + 11699, 11929, 12161, 12397, 12634, 12875, 13119, 13365, + 13614, 13865, 14120, 14377, 14637, 14899, 15165, 15433, + 15705, 15979, 16256, 16535, 16818, 17104, 17392, 17683, + 17978, 18275, 18575, 18878, 19184, 19493, 19805, 20119, + 20437, 20758, 21082, 21409, 21739, 22072, 22407, 22746, + 23089, 23434, 23782, 24133, 24487, 24845, 25206, 25569, + 25936, 26306, 26679, 27055, 27435, 27818, 28203, 28592, + 28985, 29380, 29779, 30181, 30586, 30994, 31406, 31820, + 32239, 32660, 33085, 33513, 33944, 34379, 34817, 35258, + 35702, 36150, 36602, 37056, 37514, 37976, 38441, 38909, + 39380, 39856, 40334, 40816, 41301, 41790, 42282, 42778, + 43277, 43780, 44286, 44795, 45308, 45825, 46345, 46869, + 47396, 47927, 48461, 48999, 49540, 50085, 50634, 51186, + 51742, 52301, 52864, 53431, 54001, 54575, 55153, 55734, + 56318, 56907, 57499, 58095, 58695, 59298, 59905, 60515, + 61130, 61748, 62370, 62995, 63624, 64258, 64894, 65535, +}; +#endif + +#ifdef GAMMA_3_0 +static const u16 gamma_table_3_0[] = { + /* gamma = 3.0 */ + 0, 0, 0, 0, 0, 0, 1, 1, + 2, 3, 4, 5, 7, 9, 11, 13, + 16, 19, 23, 27, 32, 37, 42, 48, + 55, 62, 69, 78, 87, 96, 107, 118, + 130, 142, 155, 169, 184, 200, 217, 234, + 253, 272, 293, 314, 337, 360, 385, 410, + 437, 465, 494, 524, 556, 588, 622, 658, + 694, 732, 771, 812, 854, 897, 942, 988, + 1036, 1085, 1136, 1189, 1243, 1298, 1356, 1415, + 1475, 1538, 1602, 1667, 1735, 1804, 1876, 1949, + 2024, 2100, 2179, 2260, 2343, 2427, 2514, 2603, + 2693, 2786, 2881, 2978, 3078, 3179, 3283, 3389, + 3497, 3607, 3720, 3835, 3952, 4072, 4194, 4319, + 4446, 4575, 4707, 4842, 4979, 5118, 5261, 5405, + 5553, 5703, 5856, 6011, 6169, 6330, 6494, 6660, + 6830, 7002, 7177, 7355, 7536, 7719, 7906, 8096, + 8289, 8484, 8683, 8885, 9090, 9298, 9510, 9724, + 9942, 10163, 10387, 10614, 10845, 11079, 11317, 11557, + 11802, 12049, 12300, 12555, 12813, 13074, 13339, 13608, + 13880, 14156, 14435, 14718, 15005, 15295, 15589, 15887, + 16189, 16494, 16803, 17117, 17433, 17754, 18079, 18408, + 18740, 19077, 19418, 19762, 20111, 20464, 20821, 21182, + 21547, 21917, 22290, 22668, 23050, 23436, 23827, 24222, + 24621, 25025, 25433, 25845, 26262, 26683, 27109, 27539, + 27974, 28413, 28857, 29306, 29759, 30217, 30680, 31147, + 31619, 32095, 32577, 33063, 33554, 34050, 34551, 35056, + 35567, 36082, 36602, 37128, 37658, 38194, 38734, 39280, + 39830, 40386, 40947, 41513, 42084, 42661, 43243, 43830, + 44422, 45019, 45622, 46231, 46844, 47463, 48088, 48718, + 49353, 49994, 50641, 51293, 51950, 52614, 53282, 53957, + 54637, 55323, 56014, 56712, 57415, 58123, 58838, 59558, + 60285, 61017, 61755, 62499, 63249, 64005, 64767, 65535, +}; +#endif + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable TIM1 clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_TIM1EN); + + /* Enable GPIOC, Alternate Function clocks. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, + RCC_APB2ENR_IOPAEN | RCC_APB2ENR_AFIOEN); +} + +void gpio_setup(void) +{ + /* + * Set GPIO6 (in GPIO port C) to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, + GPIO_TIM1_CH1 | + GPIO_TIM1_CH2 | + GPIO_TIM1_CH3 | + GPIO_TIM1_CH4); + + /* Remap TIM1: + * CH1 -> PC6 + * CH2 -> PC7 + * CH3 -> PC8 + * CH4 -> PC9 + */ + //AFIO_MAPR |= AFIO_MAPR_TIM3_REMAP_FULL_REMAP; +} +void tim_setup(void) +{ +#if 0 + TIM1_CR1 = TIM_CR1_CMS_CENTER_1 | TIM_CR1_ARPE; + TIM1_CCMR1 = TIM_CCMR1_OC1M_PWM1 | TIM_CCMR1_OC1PE | TIM_CCMR1_OC2M_PWM1 | TIM_CCMR1_OC2PE; + TIM1_CCMR2 = TIM_CCMR2_OC3M_PWM1 | TIM_CCMR2_OC3PE; + + TIM1_CCER &= ~TIM_CCER_CC1P; +#endif +#if 1 + TIM1_SMCR &= ~TIM_SMCR_SMS_MASK; + TIM1_CR1 &= ~TIM_CR1_CEN; + + /* Clock division and mode */ + TIM1_CR1 = TIM_CR1_CKD_CK_INT | TIM_CR1_CMS_EDGE; + /* Period */ + TIM1_ARR = 65535; + /* Prescaler */ + TIM1_PSC = 2; + TIM1_EGR = TIM_EGR_UG; + + /* ---- */ + /* Output compare 1 mode and preload */ + TIM1_CCMR1 |= TIM_CCMR1_OC1M_PWM1 | TIM_CCMR1_OC1PE; + + /* Polarity and state */ + // TIM1_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E; + TIM1_CCER |= TIM_CCER_CC1E; + + /* Capture compare value */ + TIM1_CCR1 = 1000; + + /* ---- */ + /* Output compare 2 mode and preload */ + TIM1_CCMR1 |= TIM_CCMR1_OC2M_PWM1 | TIM_CCMR1_OC2PE; + + /* Polarity and state */ + // TIM1_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E; + TIM1_CCER |= TIM_CCER_CC2E; + + /* Capture compare value */ + TIM1_CCR2 = 1000; + + /* ---- */ + /* Output compare 3 mode and preload */ + TIM1_CCMR2 |= TIM_CCMR2_OC3M_PWM1 | TIM_CCMR2_OC3PE; + + /* Polarity and state */ + // TIM1_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E; + TIM1_CCER |= TIM_CCER_CC3E; + + /* Capture compare value */ + TIM1_CCR3 = 1000; + + /* ---- */ + /* Output compare 4 mode and preload */ + TIM1_CCMR2 |= TIM_CCMR2_OC4M_PWM1 | TIM_CCMR2_OC4PE; + + /* Polarity and state */ + // TIM1_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E; + TIM1_CCER |= TIM_CCER_CC4E; + + /* Capture compare value */ + TIM1_CCR4 = 1000; + + /* ---- */ + /* ARR reload enable */ + TIM1_CR1 |= TIM_CR1_ARPE; + + TIM1_BDTR |= TIM_BDTR_MOE; + + /* Counter enable */ + TIM1_CR1 |= TIM_CR1_CEN; +#endif +} + +int main(void) +{ + int i, j0, j1, j2, j3, d0, d1, d2, d3, j, k, kd; + + clock_setup(); + gpio_setup(); + tim_setup(); + +#ifdef COMPARE + j0 = 0; + d0 = 1; + j1 = 0; + d1 = 1; + j2 = 0; + d2 = 1; + j3 = 0; + d3 = 1; + while (1) { + TIM1_CCR1 = gamma_table_linear[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 0) + d0 = 1; + TIM1_CCR2 = gamma_table_1_3[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 0) + d1 = 1; + TIM1_CCR3 = gamma_table_2_5[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 0) + d2 = 1; + TIM1_CCR4= gamma_table_3_0[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 0) + d3 = 1; + for (i = 0; i < 50000; i++); + } +#endif + +#ifdef MOVING_FADE + j0 = 0; + d0 = 1; + j1 = 128; + d1 = 1; + j2 = 255; + d2 = -1; + j3 = 128; + d3 = -1; + while (1) { + TIM1_CCR1 = GAMMA_TABLE[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 0) + d0 = 1; + TIM1_CCR2 = GAMMA_TABLE[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 0) + d1 = 1; + TIM1_CCR3 = GAMMA_TABLE[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 0) + d2 = 1; + TIM1_CCR4 = GAMMA_TABLE[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 0) + d3 = 1; + for (i = 0; i < 10000; i++); + } +#endif + +#ifdef KITT + j0 = 255; + d0 = -1; + j1 = 20; + d1 = -1; + j2 = 20; + d2 = -1; + j3 = 20; + d3 = -1; + j = 0; + k = 0; + kd = 1; + while (1) { + TIM1_CCR1 = GAMMA_TABLE[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 19) + j0 = 20; + TIM1_CCR2 = GAMMA_TABLE[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 19) + j1 = 20; + TIM1_CCR3 = GAMMA_TABLE[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 19) + j2 = 20; + TIM1_CCR4 = GAMMA_TABLE[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 19) + j3 = 20; + for (i = 0; i < 5000; i++); + j++; + if (j == 100) { + j = 0; + switch (k += kd) { + case 0: + j0 = 255; + break; + case 1: + j1 = 255; + break; + case 2: + j2 = 255; + break; + case 3: + j3 = 255; + break; + } + if (k == 3) + kd =- 1; + if (k == 0) + kd = 1; + } + } +#endif + + return 0; +} diff --git a/examples/stm32/f1/mb525/pwmleds/pwmleds.ld b/examples/stm32/f1/mb525/pwmleds/pwmleds.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/mb525/pwmleds/pwmleds.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/can/Makefile b/examples/stm32/f1/obldc/can/Makefile new file mode 100644 index 0000000..20a4b90 --- /dev/null +++ b/examples/stm32/f1/obldc/can/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = can + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/can/can.c b/examples/stm32/f1/obldc/can/can.c new file mode 100644 index 0000000..00a05dc --- /dev/null +++ b/examples/stm32/f1/obldc/can/can.c @@ -0,0 +1,216 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +struct can_tx_msg { + u32 std_id; + u32 ext_id; + u8 ide; + u8 rtr; + u8 dlc; + u8 data[8]; +}; + +struct can_rx_msg { + u32 std_id; + u32 ext_id; + u8 ide; + u8 rtr; + u8 dlc; + u8 data[8]; + u8 fmi; +}; + +struct can_tx_msg can_tx_msg; +struct can_rx_msg can_rx_msg; + +void gpio_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + gpio_set(GPIOA, GPIO6); /* LED0 off */ + gpio_set(GPIOA, GPIO7); /* LED1 off */ + gpio_set(GPIOB, GPIO0); /* LED2 off */ + gpio_set(GPIOB, GPIO1); /* LED3 off */ + + /* Set GPIO6/7 (in GPIO port A) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO0); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO1); +} + +void systick_setup(void) +{ + /* 72MHz / 8 => 9000000 counts per second */ + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + + /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ + systick_set_reload(9000); + + systick_interrupt_enable(); + + /* Start counting. */ + systick_counter_enable(); +} + +void can_setup(void) +{ + /* Enable peripheral clocks. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_CANEN); + + /* Configure CAN pin: RX (input pull-up). */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_PULL_UPDOWN, GPIO_CAN_RX); + gpio_set(GPIOA, GPIO_CAN_RX); + + /* Configure CAN pin: TX. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_CAN_TX); + + /* NVIC setup. */ + nvic_enable_irq(NVIC_USB_LP_CAN_RX0_IRQ); + nvic_set_priority(NVIC_USB_LP_CAN_RX0_IRQ, 1); + + /* Reset CAN. */ + can_reset(CAN1); + + /* CAN cell init. */ + if (can_init(CAN1, + false, /* TTCM: Time triggered comm mode? */ + true, /* ABOM: Automatic bus-off management? */ + false, /* AWUM: Automatic wakeup mode? */ + false, /* NART: No automatic retransmission? */ + false, /* RFLM: Receive FIFO locked mode? */ + false, /* TXFP: Transmit FIFO priority? */ + CAN_BTR_SJW_1TQ, + CAN_BTR_TS1_3TQ, + CAN_BTR_TS2_4TQ, + 12)) /* BRP+1: Baud rate prescaler */ + { + gpio_set(GPIOA, GPIO6); /* LED0 off */ + gpio_set(GPIOA, GPIO7); /* LED1 off */ + gpio_set(GPIOB, GPIO0); /* LED2 off */ + gpio_clear(GPIOB, GPIO1); /* LED3 on */ + + /* Die because we failed to initialize. */ + while (1) + __asm__("nop"); + } + + /* CAN filter 0 init. */ + can_filter_id_mask_32bit_init(CAN1, + 0, /* Filter ID */ + 0, /* CAN ID */ + 0, /* CAN ID mask */ + 0, /* FIFO assignment (here: FIFO0) */ + true); /* Enable the filter. */ + + /* Enable CAN RX interrupt. */ + can_enable_irq(CAN1, CAN_IER_FMPIE0); +} + +void sys_tick_handler(void) +{ + static int temp32 = 0; + static u8 data[8] = {0, 1, 2, 0, 0, 0, 0, 0}; + + /* We call this handler every 1ms so 1000ms = 1s on/off. */ + if (++temp32 != 1000) + return; + + temp32 = 0; + + /* Transmit CAN frame. */ + data[0]++; + if (can_transmit(CAN1, + 0, /* (EX/ST)ID: CAN ID */ + false, /* IDE: CAN ID extended? */ + false, /* RTR: Request transmit? */ + 8, /* DLC: Data length */ + data) == -1) + { + gpio_set(GPIOA, GPIO6); /* LED0 off */ + gpio_set(GPIOA, GPIO7); /* LED1 off */ + gpio_clear(GPIOB, GPIO0); /* LED2 on */ + gpio_set(GPIOB, GPIO1); /* LED3 off */ + } +} + +void usb_lp_can_rx0_isr(void) +{ + u32 id, fmi; + bool ext, rtr; + u8 length, data[8]; + + can_receive(CAN1, 0, false, &id, &ext, &rtr, &fmi, &length, data); + + if (data[0] & 1) + gpio_clear(GPIOA, GPIO6); + else + gpio_set(GPIOA, GPIO6); + + if (data[0] & 2) + gpio_clear(GPIOA, GPIO7); + else + gpio_set(GPIOA, GPIO7); + + if (data[0] & 4) + gpio_clear(GPIOB, GPIO0); + else + gpio_set(GPIOB, GPIO0); + + if (data[0] & 8) + gpio_clear(GPIOB, GPIO1); + else + gpio_set(GPIOB, GPIO1); + + can_fifo_release(CAN1, 0); +} + +int main(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + gpio_setup(); + can_setup(); + systick_setup(); + + while (1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/obldc/can/can.ld b/examples/stm32/f1/obldc/can/can.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/obldc/can/can.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/led/Makefile b/examples/stm32/f1/obldc/led/Makefile new file mode 100644 index 0000000..8e1618a --- /dev/null +++ b/examples/stm32/f1/obldc/led/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = led + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/led/led.c b/examples/stm32/f1/obldc/led/led.c new file mode 100644 index 0000000..db479b2 --- /dev/null +++ b/examples/stm32/f1/obldc/led/led.c @@ -0,0 +1,71 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); +} + +void gpio_setup(void) +{ + /* Set GPIO6 and 7 (in GPIO port A) to 'output push-pull'. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6 | GPIO7); + + /* Set GPIO0 and 1 (in GPIO port B) to 'output push-pull'. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO0 | GPIO1); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Blink the LEDs on the board. */ + while (1) { + gpio_toggle(GPIOA, GPIO6); /* LED on/off */ + for (i = 0; i < 8000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOA, GPIO7); /* LED on/off */ + for (i = 0; i < 8000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOB, GPIO0); /* LED on/off */ + for (i = 0; i < 8000000; i++) /* Wait a bit. */ + __asm__("nop"); + gpio_toggle(GPIOB, GPIO1); /* LED on/off */ + for (i = 0; i < 8000000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/obldc/led/led.ld b/examples/stm32/f1/obldc/led/led.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/obldc/led/led.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/pwmleds/Makefile b/examples/stm32/f1/obldc/pwmleds/Makefile new file mode 100644 index 0000000..8ae74d6 --- /dev/null +++ b/examples/stm32/f1/obldc/pwmleds/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = pwmleds + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/pwmleds/pwmleds.c b/examples/stm32/f1/obldc/pwmleds/pwmleds.c new file mode 100644 index 0000000..faa9aa0 --- /dev/null +++ b/examples/stm32/f1/obldc/pwmleds/pwmleds.c @@ -0,0 +1,485 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +// #define COMPARE +// #define MOVING_FADE +#define KITT + +#ifdef COMPARE +#define GAMMA_LINEAR +#define GAMMA_1_3 +#define GAMMA_2_5 +#define GAMMA_3_0 +#endif + +#ifdef MOVING_FADE +#define GAMMA_2_2 +#define GAMMA_TABLE gamma_table_2_2 +#endif + +#ifdef KITT +#define GAMMA_2_5 +#define GAMMA_TABLE gamma_table_2_5 +#endif + +/* + * Gamma correction table + * + * The nonlinear tables are calculating with the function: + * Iout = Iin ** gamma + */ +#ifdef GAMMA_LINEAR +static const u16 gamma_table_linear[] = { + 1, 4, 9, 17, 26, 37, 51, 67, + 84, 104, 126, 149, 175, 203, 233, 265, + 299, 334, 372, 412, 454, 499, 545, 593, + 643, 695, 749, 805, 864, 924, 986, 1050, + 1116, 1185, 1255, 1327, 1402, 1478, 1556, 1637, + 1719, 1803, 1890, 1978, 2068, 2161, 2255, 2352, + 2450, 2550, 2653, 2757, 2864, 2972, 3082, 3195, + 3309, 3426, 3544, 3664, 3787, 3911, 4038, 4166, + 4296, 4429, 4563, 4700, 4838, 4978, 5121, 5265, + 5411, 5560, 5710, 5862, 6017, 6173, 6331, 6492, + 6654, 6818, 6985, 7153, 7323, 7495, 7670, 7846, + 8024, 8204, 8387, 8571, 8757, 8945, 9135, 9327, + 9521, 9718, 9916, 10116, 10318, 10522, 10728, 10936, + 11146, 11358, 11572, 11788, 12006, 12226, 12448, 12672, + 12897, 13125, 13355, 13587, 13821, 14057, 14294, 14534, + 14776, 15020, 15265, 15513, 15763, 16014, 16268, 16524, + 16781, 17041, 17302, 17566, 17831, 18099, 18368, 18640, + 18913, 19189, 19466, 19745, 20027, 20310, 20595, 20883, + 21172, 21463, 21756, 22051, 22349, 22648, 22949, 23252, + 23557, 23864, 24173, 24484, 24797, 25112, 25429, 25748, + 26069, 26391, 26716, 27043, 27372, 27702, 28035, 28370, + 28707, 29045, 29386, 29728, 30073, 30419, 30768, 31118, + 31471, 31825, 32182, 32540, 32900, 33263, 33627, 33993, + 34361, 34731, 35104, 35478, 35854, 36232, 36612, 36994, + 37378, 37764, 38152, 38542, 38933, 39327, 39723, 40121, + 40521, 40922, 41326, 41732, 42139, 42549, 42960, 43374, + 43789, 44207, 44626, 45048, 45471, 45896, 46324, 46753, + 47184, 47617, 48052, 48490, 48929, 49370, 49813, 50258, + 50705, 51154, 51604, 52057, 52512, 52969, 53428, 53888, + 54351, 54816, 55282, 55751, 56222, 56694, 57169, 57645, + 58123, 58604, 59086, 59570, 60057, 60545, 61035, 61527, + 62021, 62517, 63016, 63516, 64018, 64521, 65027, 65535, +}; +#endif + +#ifdef GAMMA_1_3 +static const u16 gamma_table_1_3[] = { + /* Gamma 1.3 */ + 0, 49, 120, 203, 296, 395, 501, 612, + 728, 848, 973, 1101, 1233, 1368, 1506, 1648, + 1792, 1939, 2088, 2241, 2395, 2552, 2711, 2872, + 3036, 3201, 3369, 3538, 3709, 3882, 4057, 4234, + 4412, 4592, 4774, 4957, 5142, 5329, 5517, 5706, + 5897, 6090, 6283, 6479, 6675, 6873, 7072, 7273, + 7475, 7678, 7882, 8088, 8294, 8502, 8711, 8922, + 9133, 9346, 9559, 9774, 9990, 10207, 10425, 10644, + 10864, 11086, 11308, 11531, 11755, 11981, 12207, 12434, + 12662, 12891, 13121, 13352, 13584, 13817, 14051, 14285, + 14521, 14757, 14994, 15233, 15472, 15712, 15952, 16194, + 16436, 16679, 16923, 17168, 17414, 17660, 17908, 18156, + 18405, 18654, 18905, 19156, 19408, 19660, 19914, 20168, + 20423, 20679, 20935, 21192, 21450, 21708, 21968, 22228, + 22488, 22750, 23012, 23275, 23538, 23802, 24067, 24332, + 24599, 24865, 25133, 25401, 25670, 25939, 26209, 26480, + 26751, 27023, 27296, 27569, 27843, 28118, 28393, 28669, + 28945, 29222, 29500, 29778, 30057, 30336, 30616, 30897, + 31178, 31460, 31742, 32025, 32308, 32592, 32877, 33162, + 33448, 33734, 34021, 34309, 34597, 34885, 35175, 35464, + 35754, 36045, 36337, 36628, 36921, 37214, 37507, 37801, + 38096, 38391, 38686, 38982, 39279, 39576, 39874, 40172, + 40471, 40770, 41070, 41370, 41670, 41972, 42273, 42576, + 42878, 43181, 43485, 43789, 44094, 44399, 44705, 45011, + 45317, 45625, 45932, 46240, 46549, 46858, 47167, 47477, + 47787, 48098, 48409, 48721, 49034, 49346, 49659, 49973, + 50287, 50602, 50917, 51232, 51548, 51864, 52181, 52498, + 52816, 53134, 53452, 53771, 54091, 54411, 54731, 55052, + 55373, 55694, 56016, 56339, 56662, 56985, 57309, 57633, + 57957, 58282, 58608, 58933, 59260, 59586, 59913, 60241, + 60569, 60897, 61226, 61555, 61884, 62214, 62545, 62875, + 63206, 63538, 63870, 64202, 64535, 64868, 65201, 65535, +}; +#endif + +#ifdef GAMMA_2_2 +static const u16 gamma_table_2_2[] = { + 0, 0, 2, 4, 7, 11, 17, 24, + 32, 42, 53, 65, 79, 94, 111, 129, + 148, 169, 192, 216, 242, 270, 299, 330, + 362, 396, 432, 469, 508, 549, 591, 635, + 681, 729, 779, 830, 883, 938, 995, 1053, + 1113, 1175, 1239, 1305, 1373, 1443, 1514, 1587, + 1663, 1740, 1819, 1900, 1983, 2068, 2155, 2243, + 2334, 2427, 2521, 2618, 2717, 2817, 2920, 3024, + 3131, 3240, 3350, 3463, 3578, 3694, 3813, 3934, + 4057, 4182, 4309, 4438, 4570, 4703, 4838, 4976, + 5115, 5257, 5401, 5547, 5695, 5845, 5998, 6152, + 6309, 6468, 6629, 6792, 6957, 7124, 7294, 7466, + 7640, 7816, 7994, 8175, 8358, 8543, 8730, 8919, + 9111, 9305, 9501, 9699, 9900, 10102, 10307, 10515, + 10724, 10936, 11150, 11366, 11585, 11806, 12029, 12254, + 12482, 12712, 12944, 13179, 13416, 13655, 13896, 14140, + 14386, 14635, 14885, 15138, 15394, 15652, 15912, 16174, + 16439, 16706, 16975, 17247, 17521, 17798, 18077, 18358, + 18642, 18928, 19216, 19507, 19800, 20095, 20393, 20694, + 20996, 21301, 21609, 21919, 22231, 22546, 22863, 23182, + 23504, 23829, 24156, 24485, 24817, 25151, 25487, 25826, + 26168, 26512, 26858, 27207, 27558, 27912, 28268, 28627, + 28988, 29351, 29717, 30086, 30457, 30830, 31206, 31585, + 31966, 32349, 32735, 33124, 33514, 33908, 34304, 34702, + 35103, 35507, 35913, 36321, 36732, 37146, 37562, 37981, + 38402, 38825, 39252, 39680, 40112, 40546, 40982, 41421, + 41862, 42306, 42753, 43202, 43654, 44108, 44565, 45025, + 45487, 45951, 46418, 46888, 47360, 47835, 48313, 48793, + 49275, 49761, 50249, 50739, 51232, 51728, 52226, 52727, + 53230, 53736, 54245, 54756, 55270, 55787, 56306, 56828, + 57352, 57879, 58409, 58941, 59476, 60014, 60554, 61097, + 61642, 62190, 62741, 63295, 63851, 64410, 64971, 65535 +}; +#endif + +#ifdef GAMMA_2_5 +static const u16 gamma_table_2_5[] = { + /* gamma = 2.5 */ + 0, 0, 0, 1, 2, 4, 6, 8, + 11, 15, 20, 25, 31, 38, 46, 55, + 65, 75, 87, 99, 113, 128, 143, 160, + 178, 197, 218, 239, 262, 286, 311, 338, + 366, 395, 425, 457, 491, 526, 562, 599, + 639, 679, 722, 765, 811, 857, 906, 956, + 1007, 1061, 1116, 1172, 1231, 1291, 1352, 1416, + 1481, 1548, 1617, 1688, 1760, 1834, 1910, 1988, + 2068, 2150, 2233, 2319, 2407, 2496, 2587, 2681, + 2776, 2874, 2973, 3075, 3178, 3284, 3391, 3501, + 3613, 3727, 3843, 3961, 4082, 4204, 4329, 4456, + 4585, 4716, 4850, 4986, 5124, 5264, 5407, 5552, + 5699, 5849, 6001, 6155, 6311, 6470, 6632, 6795, + 6962, 7130, 7301, 7475, 7650, 7829, 8009, 8193, + 8379, 8567, 8758, 8951, 9147, 9345, 9546, 9750, + 9956, 10165, 10376, 10590, 10806, 11025, 11247, 11472, + 11699, 11929, 12161, 12397, 12634, 12875, 13119, 13365, + 13614, 13865, 14120, 14377, 14637, 14899, 15165, 15433, + 15705, 15979, 16256, 16535, 16818, 17104, 17392, 17683, + 17978, 18275, 18575, 18878, 19184, 19493, 19805, 20119, + 20437, 20758, 21082, 21409, 21739, 22072, 22407, 22746, + 23089, 23434, 23782, 24133, 24487, 24845, 25206, 25569, + 25936, 26306, 26679, 27055, 27435, 27818, 28203, 28592, + 28985, 29380, 29779, 30181, 30586, 30994, 31406, 31820, + 32239, 32660, 33085, 33513, 33944, 34379, 34817, 35258, + 35702, 36150, 36602, 37056, 37514, 37976, 38441, 38909, + 39380, 39856, 40334, 40816, 41301, 41790, 42282, 42778, + 43277, 43780, 44286, 44795, 45308, 45825, 46345, 46869, + 47396, 47927, 48461, 48999, 49540, 50085, 50634, 51186, + 51742, 52301, 52864, 53431, 54001, 54575, 55153, 55734, + 56318, 56907, 57499, 58095, 58695, 59298, 59905, 60515, + 61130, 61748, 62370, 62995, 63624, 64258, 64894, 65535, +}; +#endif + +#ifdef GAMMA_3_0 +static const u16 gamma_table_3_0[] = { + /* gamma = 3.0 */ + 0, 0, 0, 0, 0, 0, 1, 1, + 2, 3, 4, 5, 7, 9, 11, 13, + 16, 19, 23, 27, 32, 37, 42, 48, + 55, 62, 69, 78, 87, 96, 107, 118, + 130, 142, 155, 169, 184, 200, 217, 234, + 253, 272, 293, 314, 337, 360, 385, 410, + 437, 465, 494, 524, 556, 588, 622, 658, + 694, 732, 771, 812, 854, 897, 942, 988, + 1036, 1085, 1136, 1189, 1243, 1298, 1356, 1415, + 1475, 1538, 1602, 1667, 1735, 1804, 1876, 1949, + 2024, 2100, 2179, 2260, 2343, 2427, 2514, 2603, + 2693, 2786, 2881, 2978, 3078, 3179, 3283, 3389, + 3497, 3607, 3720, 3835, 3952, 4072, 4194, 4319, + 4446, 4575, 4707, 4842, 4979, 5118, 5261, 5405, + 5553, 5703, 5856, 6011, 6169, 6330, 6494, 6660, + 6830, 7002, 7177, 7355, 7536, 7719, 7906, 8096, + 8289, 8484, 8683, 8885, 9090, 9298, 9510, 9724, + 9942, 10163, 10387, 10614, 10845, 11079, 11317, 11557, + 11802, 12049, 12300, 12555, 12813, 13074, 13339, 13608, + 13880, 14156, 14435, 14718, 15005, 15295, 15589, 15887, + 16189, 16494, 16803, 17117, 17433, 17754, 18079, 18408, + 18740, 19077, 19418, 19762, 20111, 20464, 20821, 21182, + 21547, 21917, 22290, 22668, 23050, 23436, 23827, 24222, + 24621, 25025, 25433, 25845, 26262, 26683, 27109, 27539, + 27974, 28413, 28857, 29306, 29759, 30217, 30680, 31147, + 31619, 32095, 32577, 33063, 33554, 34050, 34551, 35056, + 35567, 36082, 36602, 37128, 37658, 38194, 38734, 39280, + 39830, 40386, 40947, 41513, 42084, 42661, 43243, 43830, + 44422, 45019, 45622, 46231, 46844, 47463, 48088, 48718, + 49353, 49994, 50641, 51293, 51950, 52614, 53282, 53957, + 54637, 55323, 56014, 56712, 57415, 58123, 58838, 59558, + 60285, 61017, 61755, 62499, 63249, 64005, 64767, 65535, +}; +#endif + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable TIM3 clock. */ + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM3EN); + + /* Enable GPIOC, Alternate Function clocks. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, + RCC_APB2ENR_IOPAEN | + RCC_APB2ENR_IOPBEN | + RCC_APB2ENR_AFIOEN); +} + +void gpio_setup(void) +{ + /* + * Set GPIO6 and 7 (in GPIO port A) to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, + GPIO_TIM3_CH1 | + GPIO_TIM3_CH2); + + /* + * Set GPIO0 and 1 (in GPIO port B) to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, + GPIO_TIM3_CH3 | + GPIO_TIM3_CH4); + +} +void tim_setup(void) +{ + /* Clock division and mode */ + TIM3_CR1 = TIM_CR1_CKD_CK_INT | TIM_CR1_CMS_EDGE; + /* Period */ + TIM3_ARR = 65535; + /* Prescaler */ + TIM3_PSC = 0; + TIM3_EGR = TIM_EGR_UG; + + /* ---- */ + /* Output compare 1 mode and preload */ + TIM3_CCMR1 |= TIM_CCMR1_OC1M_PWM1 | TIM_CCMR1_OC1PE; + + /* Polarity and state */ + TIM3_CCER |= TIM_CCER_CC1P | TIM_CCER_CC1E; + //TIM3_CCER |= TIM_CCER_CC1E; + + /* Capture compare value */ + TIM3_CCR1 = 0; + + /* ---- */ + /* Output compare 2 mode and preload */ + TIM3_CCMR1 |= TIM_CCMR1_OC2M_PWM1 | TIM_CCMR1_OC2PE; + + /* Polarity and state */ + TIM3_CCER |= TIM_CCER_CC2P | TIM_CCER_CC2E; + //TIM3_CCER |= TIM_CCER_CC2E; + + /* Capture compare value */ + TIM3_CCR2 = 0; + + /* ---- */ + /* Output compare 3 mode and preload */ + TIM3_CCMR2 |= TIM_CCMR2_OC3M_PWM1 | TIM_CCMR2_OC3PE; + + /* Polarity and state */ + TIM3_CCER |= TIM_CCER_CC3P | TIM_CCER_CC3E; + //TIM3_CCER |= TIM_CCER_CC3E; + + /* Capture compare value */ + TIM3_CCR3 = 0; + + /* ---- */ + /* Output compare 4 mode and preload */ + TIM3_CCMR2 |= TIM_CCMR2_OC4M_PWM1 | TIM_CCMR2_OC4PE; + + /* Polarity and state */ + TIM3_CCER |= TIM_CCER_CC4P | TIM_CCER_CC4E; + //TIM3_CCER |= TIM_CCER_CC4E; + + /* Capture compare value */ + TIM3_CCR4 = 0; + + /* ---- */ + /* ARR reload enable */ + TIM3_CR1 |= TIM_CR1_ARPE; + + /* Counter enable */ + TIM3_CR1 |= TIM_CR1_CEN; +} + +int main(void) +{ + int i, j0, j1, j2, j3, d0, d1, d2, d3, j, k, kd; + + clock_setup(); + gpio_setup(); + tim_setup(); + +#ifdef COMPARE + j0 = 0; + d0 = 1; + j1 = 0; + d1 = 1; + j2 = 0; + d2 = 1; + j3 = 0; + d3 = 1; + while (1) { + TIM3_CCR1 = gamma_table_linear[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 0) + d0 = 1; + TIM3_CCR2 = gamma_table_1_3[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 0) + d1 = 1; + TIM3_CCR3 = gamma_table_2_5[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 0) + d2 = 1; + TIM3_CCR4= gamma_table_3_0[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 0) + d3 = 1; + for (i = 0; i < 50000; i++); + } +#endif + +#ifdef MOVING_FADE + j0 = 0; + d0 = 1; + j1 = 128; + d1 = 1; + j2 = 255; + d2 = -1; + j3 = 128; + d3 = -1; + while (1) { + TIM3_CCR1 = GAMMA_TABLE[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 0) + d0 = 1; + TIM3_CCR2 = GAMMA_TABLE[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 0) + d1 = 1; + TIM3_CCR3 = GAMMA_TABLE[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 0) + d2 = 1; + TIM3_CCR4 = GAMMA_TABLE[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 0) + d3 = 1; + for (i = 0; i < 10000; i++); + } +#endif + +#ifdef KITT + j0 = 255; + d0 = -1; + j1 = 20; + d1 = -1; + j2 = 20; + d2 = -1; + j3 = 20; + d3 = -1; + j = 0; + k = 0; + kd = 1; + while (1) { + TIM3_CCR1 = GAMMA_TABLE[j0]; + j0 += d0; + if (j0 == 255) + d0 =- 1; + if (j0 == 19) + j0 = 20; + TIM3_CCR2 = GAMMA_TABLE[j1]; + j1 += d1; + if (j1 == 255) + d1 =- 1; + if (j1 == 19) + j1 = 20; + TIM3_CCR3 = GAMMA_TABLE[j2]; + j2 += d2; + if (j2 == 255) + d2 =- 1; + if (j2 == 19) + j2 = 20; + TIM3_CCR4 = GAMMA_TABLE[j3]; + j3 += d3; + if (j3 == 255) + d3 =- 1; + if (j3 == 19) + j3 = 20; + for (i = 0; i < 15000; i++) + __asm__("nop"); + j++; + if (j == 100) { + j = 0; + switch (k += kd) { + case 0: + j0 = 255; + break; + case 1: + j1 = 255; + break; + case 2: + j2 = 255; + break; + case 3: + j3 = 255; + break; + } + if (k == 3) + kd =- 1; + if (k == 0) + kd = 1; + } + } +#endif + + return 0; +} diff --git a/examples/stm32/f1/obldc/pwmleds/pwmleds.ld b/examples/stm32/f1/obldc/pwmleds/pwmleds.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/obldc/pwmleds/pwmleds.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/systick/Makefile b/examples/stm32/f1/obldc/systick/Makefile new file mode 100644 index 0000000..91b5cb5 --- /dev/null +++ b/examples/stm32/f1/obldc/systick/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = systick + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/systick/systick.c b/examples/stm32/f1/obldc/systick/systick.c new file mode 100644 index 0000000..263230f --- /dev/null +++ b/examples/stm32/f1/obldc/systick/systick.c @@ -0,0 +1,90 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +u32 temp32; + +void gpio_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + gpio_set(GPIOA, GPIO6); /* LED0 off */ + gpio_set(GPIOA, GPIO7); /* LED1 off */ + gpio_set(GPIOB, GPIO0); /* LED2 off */ + gpio_set(GPIOB, GPIO1); /* LED3 off */ + + /* Set GPIO6/7 (in GPIO port A) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO0); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO1); +} + +void sys_tick_handler(void) +{ + temp32++; + + /* We call this handler every 1ms so 1000ms = 1s on/off. */ + if (temp32 == 1000) { + gpio_toggle(GPIOA, GPIO6); /* LED2 on/off */ + temp32 = 0; + } +} + +int main(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + gpio_setup(); + + gpio_clear(GPIOA, GPIO7); /* LED1 on */ + gpio_set(GPIOA, GPIO6); /* LED2 off */ + + temp32 = 0; + + /* 72MHz / 8 => 9000000 counts per second */ + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + + /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ + systick_set_reload(9000); + + systick_interrupt_enable(); + + /* Start counting. */ + systick_counter_enable(); + + while (1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/obldc/systick/systick.ld b/examples/stm32/f1/obldc/systick/systick.ld new file mode 100644 index 0000000..a3195d2 --- /dev/null +++ b/examples/stm32/f1/obldc/systick/systick.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103CBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/usart/Makefile b/examples/stm32/f1/obldc/usart/Makefile new file mode 100644 index 0000000..2c1e1b1 --- /dev/null +++ b/examples/stm32/f1/obldc/usart/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/usart/usart.c b/examples/stm32/f1/obldc/usart/usart.c new file mode 100644 index 0000000..b2efe71 --- /dev/null +++ b/examples/stm32/f1/obldc/usart/usart.c @@ -0,0 +1,90 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock (for LED GPIOs). */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable clocks for GPIO port B (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Setup GPIO6 (in GPIO port A) to 'output push-pull' for LED use. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + + AFIO_MAPR |= AFIO_MAPR_USART1_REMAP; + + /* Setup GPIO pin GPIO_USART3_TX/GPIO10 on GPIO port B for transmit. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_RE_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 230400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); +} + +int main(void) +{ + int i, j = 0, c = 0; + + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Blink the LED (PC12) on the board with every transmitted byte. */ + while (1) { + gpio_toggle(GPIOA, GPIO6); /* LED on/off */ + usart_send_blocking(USART1, c + '0'); /* Send a byte. */ + c = (c == 9) ? 0 : c + 1; /* Increment c. */ + if ((j++ % 80) == 0) { /* Newline after line full. */ + usart_send_blocking(USART1, '\r'); + usart_send_blocking(USART1, '\n'); + } + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/obldc/usart/usart.ld b/examples/stm32/f1/obldc/usart/usart.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/obldc/usart/usart.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/obldc/usart_irq/Makefile b/examples/stm32/f1/obldc/usart_irq/Makefile new file mode 100644 index 0000000..2ab46a0 --- /dev/null +++ b/examples/stm32/f1/obldc/usart_irq/Makefile @@ -0,0 +1,25 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart_irq + +OOCD_BOARD = open-bldc + +include ../../Makefile.include + diff --git a/examples/stm32/f1/obldc/usart_irq/usart_irq.c b/examples/stm32/f1/obldc/usart_irq/usart_irq.c new file mode 100644 index 0000000..20ff0a1 --- /dev/null +++ b/examples/stm32/f1/obldc/usart_irq/usart_irq.c @@ -0,0 +1,120 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock (for LED GPIOs). */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable clocks for GPIO port B (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Enable the USART1 interrupt. */ + nvic_enable_irq(NVIC_USART1_IRQ); + + /* enable USART1 pin software remapping */ + AFIO_MAPR |= AFIO_MAPR_USART1_REMAP; + + /* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_RE_TX); + + /* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */ + gpio_set_mode(GPIOB, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RE_RX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 230400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + usart_set_mode(USART1, USART_MODE_TX_RX); + + /* Enable USART1 Receive interrupt. */ + USART_CR1(USART1) |= USART_CR1_RXNEIE; + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + gpio_set(GPIOA, GPIO6 | GPIO7); + + /* Setup GPIO6 and 7 (in GPIO port A) for led use. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6 | GPIO7); +} + +void usart1_isr(void) +{ + static u8 data = 'A'; + + /* Check if we were called because of RXNE. */ + if (((USART_CR1(USART1) & USART_CR1_RXNEIE) != 0) && + ((USART_SR(USART1) & USART_SR_RXNE) != 0)) { + /* Indicate that we got data. */ + gpio_toggle(GPIOA, GPIO6); + + /* Retrieve the data from the peripheral. */ + data = usart_recv(USART1); + + /* Enable transmit interrupt so it sends back the data. */ + USART_CR1(USART1) |= USART_CR1_TXEIE; + } + + /* Check if we were called because of TXE. */ + if (((USART_CR1(USART1) & USART_CR1_TXEIE) != 0) && + ((USART_SR(USART1) & USART_SR_TXE) != 0)) { + /* Indicate that we are sending out data. */ + gpio_toggle(GPIOA, GPIO7); + + /* Put data into the transmit register. */ + usart_send(USART1, data); + + /* Disable the TXE interrupt as we don't need it anymore. */ + USART_CR1(USART1) &= ~USART_CR1_TXEIE; + } +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Wait forever and do nothing. */ + while (1) + __asm__("nop"); + + return 0; +} diff --git a/examples/stm32/f1/obldc/usart_irq/usart_irq.ld b/examples/stm32/f1/obldc/usart_irq/usart_irq.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/obldc/usart_irq/usart_irq.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/adc_temperature_sensor/Makefile b/examples/stm32/f1/other/adc_temperature_sensor/Makefile new file mode 100644 index 0000000..f3f65c4 --- /dev/null +++ b/examples/stm32/f1/other/adc_temperature_sensor/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = adc + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/adc_temperature_sensor/README b/examples/stm32/f1/other/adc_temperature_sensor/README new file mode 100644 index 0000000..aa00ef0 --- /dev/null +++ b/examples/stm32/f1/other/adc_temperature_sensor/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program sends some characters on USART1. +Afterwards it read out the internal temperature sensor of the STM32 and +sends the value read out from the ADC to the USART1. + +The terminal settings for the receiving device/PC are 115200 8n1. + diff --git a/examples/stm32/f1/other/adc_temperature_sensor/adc.c b/examples/stm32/f1/other/adc_temperature_sensor/adc.c new file mode 100644 index 0000000..a87909c --- /dev/null +++ b/examples/stm32/f1/other/adc_temperature_sensor/adc.c @@ -0,0 +1,155 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +void usart_setup(void) +{ + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); + + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 115200, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX_RX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +void adc_setup(void) +{ + int i; + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN); + + /* Make shure it doesn't run during config. */ + adc_off(ADC1); + + /* We configure everything for one single conversion. */ + adc_disable_scan_mode(ADC1); + adc_set_single_conversion_mode(ADC1); + adc_enable_discontinous_mode_regular(ADC1); + adc_disable_external_trigger_regular(ADC1); + adc_set_right_aligned(ADC1); + /* We want to read the temperature sensor, so we have to enable it. */ + adc_enable_temperature_sensor(ADC1); + adc_set_conversion_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC); + + adc_on(ADC1); + + /* Wait for ADC starting up. */ + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + + adc_reset_calibration(ADC1); + adc_calibration(ADC1); +} + +void my_usart_print_int(u32 usart, int value) +{ + s8 i; + u8 nr_digits = 0; + char buffer[25]; + + if (value < 0) { + usart_send(usart, '-'); + value = value * -1; + } + + while (value > 0) { + buffer[nr_digits++] = "0123456789"[value % 10]; + value /= 10; + } + + for (i = nr_digits; i >= 0; i--) + usart_send(usart, buffer[i]); +} + +int main(void) +{ + u8 channel_array[16]; + u16 temperature; + + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + usart_setup(); + adc_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + /* Send a message on USART1. */ + usart_send(USART1, 's'); + usart_send(USART1, 't'); + usart_send(USART1, 'm'); + usart_send(USART1, '\r'); + usart_send(USART1, '\n'); + + /* Select the channel we want to convert. 16=temperature_sensor. */ + channel_array[0] = 16; + adc_set_regular_sequence(ADC1, 1, channel_array); + + /* + * If the ADC_CR2_ON bit is already set -> setting it another time + * starts the conversion. + */ + adc_on(ADC1); + + /* Wait for end of conversion. */ + while (!(ADC_SR(ADC1) & ADC_SR_EOC)); + + temperature = ADC_DR(ADC1); + + /* + * That's actually not the real temperature - you have to compute it + * as described in the datasheet. + */ + my_usart_print_int(USART1, temperature); + + gpio_clear(GPIOB, GPIO6); /* LED2 on */ + + while(1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/other/adc_temperature_sensor/adc.ld b/examples/stm32/f1/other/adc_temperature_sensor/adc.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/adc_temperature_sensor/adc.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/dma_mem2mem/Makefile b/examples/stm32/f1/other/dma_mem2mem/Makefile new file mode 100644 index 0000000..c43650d --- /dev/null +++ b/examples/stm32/f1/other/dma_mem2mem/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = dma + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/dma_mem2mem/README b/examples/stm32/f1/other/dma_mem2mem/README new file mode 100644 index 0000000..2e61e5a --- /dev/null +++ b/examples/stm32/f1/other/dma_mem2mem/README @@ -0,0 +1,11 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This program demonstrates a little DMA MEM2MEM transfer. A string is send out +to USART1 and afterwards copied by DMA to another memory location. To check +if the transfer was successful we send the destination string also out to +USART1. + +The terminal settings for the receiving device/PC are 115200 8n1. + diff --git a/examples/stm32/f1/other/dma_mem2mem/dma.c b/examples/stm32/f1/other/dma_mem2mem/dma.c new file mode 100644 index 0000000..0389412 --- /dev/null +++ b/examples/stm32/f1/other/dma_mem2mem/dma.c @@ -0,0 +1,133 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +void usart_setup(void) +{ + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); + + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 115200, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX_RX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +void my_usart_print_string(u32 usart, char * s) +{ + while (*s != 0) { + usart_send(usart, *s); + s++; + } +} + +int main(void) +{ + /* Exactly 20 bytes including '0' at the end. + We want to transfer 32bit * 5 so it should fit */ + char s1[20] = "Hello STM MEM2MEM\r\n"; + char s2[20]; + + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + usart_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + my_usart_print_string(USART1, "s1 "); + my_usart_print_string(USART1, s1); + + rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_DMA1EN); + + /* MEM2MEM mode for channel 1. */ + dma_enable_mem2mem_mode(DMA1, DMA_CHANNEL1); + + /* Highest priority. */ + dma_set_priority(DMA1, DMA_CHANNEL1, DMA_CCR1_PL_VERY_HIGH); + + /* 32Bit wide transfer for source and destination. */ + dma_set_memory_size(DMA1, DMA_CHANNEL1, DMA_CCR1_MSIZE_32BIT); + dma_set_peripheral_size(DMA1, DMA_CHANNEL1, DMA_CCR1_PSIZE_32BIT); + + /* After each 32Bit we have to increase the addres because we use RAM. */ + dma_enable_memory_increment_mode(DMA1, DMA_CHANNEL1); + dma_enable_peripheral_increment_mode(DMA1, DMA_CHANNEL1); + + /* We define the source as peripheral. */ + dma_set_read_from_peripheral(DMA1, DMA_CHANNEL1); + + /* We want to transfer string s1. */ + dma_set_peripheral_address(DMA1, DMA_CHANNEL1, (u32) &s1); + + /* Destination should be string s2. */ + dma_set_memory_address(DMA1, DMA_CHANNEL1, (u32) &s2); + + /* Set number of DATA to transfer. + Remember that this means not necessary bytes but MSIZE or PSIZE + depending from your source device. */ + dma_set_number_of_data(DMA1, DMA_CHANNEL1, 5); + + /* Start DMA transfer. */ + dma_enable_channel(DMA1, DMA_CHANNEL1); + + /* TODO: write a function to get the interrupt flags. */ + while(!(DMA_ISR(DMA1) & 0x0000001)) + { + } + + dma_disable_channel(DMA1, DMA_CHANNEL1); + + /* String s1 should now already be transferred to s2. */ + my_usart_print_string(USART1, "s2 "); + my_usart_print_string(USART1, s2); + + gpio_clear(GPIOB, GPIO6); /* LED2 on */ + while(1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/other/dma_mem2mem/dma.ld b/examples/stm32/f1/other/dma_mem2mem/dma.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/dma_mem2mem/dma.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/dogm128/Makefile b/examples/stm32/f1/other/dogm128/Makefile new file mode 100644 index 0000000..97a012e --- /dev/null +++ b/examples/stm32/f1/other/dogm128/Makefile @@ -0,0 +1,25 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = main + +OBJS = dogm128.o + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/dogm128/README b/examples/stm32/f1/other/dogm128/README new file mode 100644 index 0000000..dbf82a0 --- /dev/null +++ b/examples/stm32/f1/other/dogm128/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program writes some text on an DOGM128 LCD display connected +to SPI2. + diff --git a/examples/stm32/f1/other/dogm128/dogm128.c b/examples/stm32/f1/other/dogm128/dogm128.c new file mode 100644 index 0000000..c78a275 --- /dev/null +++ b/examples/stm32/f1/other/dogm128/dogm128.c @@ -0,0 +1,291 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include "./dogm128.h" + +u8 dogm128_ram[1024]; +u8 dogm128_cursor_x; +u8 dogm128_cursor_y; + +void dogm128_send_command(u8 command) +{ + u32 counter; + + gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for commands */ + spi_send(DOGM128_SPI, command); + + for (counter = 0; counter<=500; counter++) /* wait */ + {} +} + +void dogm128_send_data(u8 data) +{ + u32 counter; + + gpio_set(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 high for data */ + spi_send(DOGM128_SPI, data); + + for (counter = 0; counter<=500; counter++) /* wait */ + {} +} + +void dogm128_init() +{ + u32 counter; + + /* reset the display */ + gpio_clear(DOGM128_RESET_PORT, DOGM128_RESET_PIN); /* reset low for dogm128 */ + for (counter = 0; counter<=60000; counter++) /* wait */ + {} + gpio_set(DOGM128_RESET_PORT, DOGM128_RESET_PIN); /* reset high for dogm128 */ + + for (counter = 0; counter<=60000; counter++) /* wait */ + {} + + gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for init */ + + /* tell the display that we want to start */ + spi_set_nss_low(DOGM128_SPI); + + /* init sequence */ + dogm128_send_command(DOGM128_DISPLAY_START_ADDRESS_BASE + 0); + dogm128_send_command(DOGM128_ADC_REVERSE); + dogm128_send_command(DOGM128_COM_OUTPUT_SCAN_NORMAL); + dogm128_send_command(DOGM128_DISPLAY_NORMAL); + dogm128_send_command(DOGM128_BIAS_19); + dogm128_send_command(DOGM128_POWER_CONTROL_BASE + 0x07); + dogm128_send_command(DOGM128_BOOSTER_RATIO_SET); + dogm128_send_command(0x00); /* Booster x4 */ + dogm128_send_command(DOGM128_V0_OUTPUT_RESISTOR_BASE + 0x07); + dogm128_send_command(DOGM128_ELECTRONIC_VOLUME_MODE_SET); + dogm128_send_command(0x16); /* Contrast */ + dogm128_send_command(DOGM128_STATIC_INDICATOR_OFF); + dogm128_send_command(0x00); /* Flashing OFF */ + dogm128_send_command(DOGM128_DISPLAY_ON); + + /* end transfer */ + spi_set_nss_high(DOGM128_SPI); +} + +void dogm128_print_char(u8 data) +{ + u8 i; + u8 page; + u8 shift; + u8 xcoord; + u8 ycoord; + + xcoord = dogm128_cursor_x; + ycoord = dogm128_cursor_y; + + page = (63 - ycoord) / 8; /* the display consists of 8 lines a 8 dots each. */ + shift = (7 -((63 - ycoord) % 8)); /* vertical shift */ + + /* font is 8x5 so iterate each column of the character */ + for (i = 0; i <= 5; i++) { + /* right border reached? */ + if ((xcoord + i) > 127) + return; + dogm128_cursor_x++; + + /* 0xAA = end of character - no dots in this line */ + if (dogm128_font[data - 0x20][i] == 0xAA) { + dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* clear area */ + if ((shift > 0) && (page > 0)) + dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* clear area */ + return; + } + + /* lower part */ + dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* clear area */ + dogm128_ram[(page * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] >> shift); + /* higher part if needed */ + if ((shift > 0) && (page > 0)) { + dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* clear area */ + dogm128_ram[((page - 1) * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] << (8 - shift)); + } + } +} + +void dogm128_set_cursor(u8 xcoord, u8 ycoord) +{ + dogm128_cursor_x = xcoord; + dogm128_cursor_y = ycoord; +} + +void dogm128_print_string(char * s) +{ + while (*s != 0) { + dogm128_print_char(*s); + s++; + } +} + +void dogm128_set_dot(u8 xcoord, u8 ycoord) +{ + dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] |= (1 << ((63 - ycoord) % 8)); +} + +void dogm128_clear_dot(u8 xcoord, u8 ycoord) +{ + dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] &= ~(1 << ((63 - ycoord) % 8)); +} + +void dogm128_update_display() +{ + u8 page; + u8 column; + + /* tell the display that we want to start */ + spi_set_nss_low(DOGM128_SPI); + + for (page = 0; page <= 7; page++) { + dogm128_send_command(0xB0 + page); /* set page */ + dogm128_send_command(0x10); /* set column upper address to 0 */ + dogm128_send_command(0x00); /* set column lower address to 0 */ + + for (column = 0; column <= 127; column++) { + dogm128_send_data(dogm128_ram[(page * 128) + column]); + } + } + + spi_set_nss_high(DOGM128_SPI); +} + +void dogm128_clear() +{ + u16 i; + + for (i = 0; i<=1023; i++) { + dogm128_ram[i] = 0; + } + dogm128_update_display(); +} + +/* This is a non-monospace font definition (upside down for better handling). + * 0xAA is the end of the character so its not space efficient in your memory, but on your display. + * We are starting with " " as the first printable character at 0x20, so we have to substract 0x20 later. + * Its the only defined to 127/0x7F so if you have german umlauts or other special characters from above + * you have to expand this definition a little bit. */ + +const u8 dogm128_font[96][6] = { + + /* 20 SPACE */ {0x00, 0x00, 0x00, 0xAA, 0xAA, 0xAA}, + /* 21 ! */ {0x5E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 22 " */ {0x66, 0x00, 0x66, 0xAA, 0xAA, 0xAA}, + /* 23 # */ {0x28, 0x7C, 0x28, 0x7C, 0x28, 0xAA}, + /* 24 $ */ {0x24, 0x2A, 0x7F, 0x2A, 0x10, 0xAA}, + /* 25 % */ {0x62, 0x18, 0x46, 0xAA, 0xAA, 0xAA}, + /* 26 & */ {0x30, 0x4C, 0x5A, 0x24, 0x50, 0xAA}, + /* 27 ' */ {0x06, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 28 ( */ {0x3E, 0x41, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 29 ) */ {0x41, 0x3E, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 2A * */ {0x28, 0x10, 0x7C, 0x10, 0x28, 0xAA}, + /* 2B + */ {0x10, 0x38, 0x10, 0xAA, 0xAA, 0xAA}, + /* 2C , */ {0xC0, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 2D - */ {0x10, 0x10, 0x10, 0xAA, 0xAA, 0xAA}, + /* 2E . */ {0x40, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 2F / */ {0x60, 0x18, 0x06, 0xAA, 0xAA, 0xAA}, + + /* 30 0 */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, + /* 31 1 */ {0x44, 0x7E, 0x40, 0xAA, 0xAA, 0xAA}, + /* 32 2 */ {0x44, 0x62, 0x52, 0x4C, 0xAA, 0xAA}, + /* 33 3 */ {0x4A, 0x4A, 0x34, 0xAA, 0xAA, 0xAA}, + /* 34 4 */ {0x1E, 0x10, 0x78, 0x10, 0xAA, 0xAA}, + /* 35 5 */ {0x4E, 0x4A, 0x32, 0xAA, 0xAA, 0xAA}, + /* 36 6 */ {0x3C, 0x4A, 0x4A, 0x30, 0xAA, 0xAA}, + /* 37 7 */ {0x62, 0x12, 0x0E, 0xAA, 0xAA, 0xAA}, + /* 38 8 */ {0x34, 0x4A, 0x4A, 0x34, 0xAA, 0xAA}, + /* 39 9 */ {0x0C, 0x52, 0x52, 0x3C, 0xAA, 0xAA}, + /* 3A : */ {0x28, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 3B ; */ {0xC8, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 3C < */ {0x10, 0x28, 0x44, 0xAA, 0xAA, 0xAA}, + /* 3D = */ {0x28, 0x28, 0x28, 0xAA, 0xAA, 0xAA}, + /* 3E > */ {0x44, 0x28, 0x10, 0xAA, 0xAA, 0xAA}, + /* 3F ? */ {0x02, 0x52, 0x0C, 0xAA, 0xAA, 0xAA}, + + /* 40 @ */ {0x3C, 0x42, 0x12, 0x2A, 0x3C, 0xAA}, + /* 41 A */ {0x7C, 0x12, 0x12, 0x7C, 0xAA, 0xAA}, + /* 42 B */ {0x7E, 0x4A, 0x4A, 0x34, 0xAA, 0xAA}, + /* 43 C */ {0x3C, 0x42, 0x42, 0x24, 0xAA, 0xAA}, + /* 44 D */ {0x7E, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, + /* 45 E */ {0x7E, 0x4A, 0x4A, 0xAA, 0xAA, 0xAA}, + /* 46 F */ {0x7E, 0x0A, 0x0A, 0xAA, 0xAA, 0xAA}, + /* 47 G */ {0x3C, 0x42, 0x52, 0x34, 0xAA, 0xAA}, + /* 48 H */ {0x7E, 0x08, 0x08, 0x7E, 0xAA, 0xAA}, + /* 49 I */ {0x42, 0x7E, 0x42, 0xAA, 0xAA, 0xAA}, + /* 4A J */ {0x42, 0x42, 0x3E, 0xAA, 0xAA, 0xAA}, + /* 4B K */ {0x7E, 0x08, 0x14, 0x62, 0xAA, 0xAA}, + /* 4C L */ {0x7E, 0x40, 0x40, 0xAA, 0xAA, 0xAA}, + /* 4D M */ {0x7E, 0x04, 0x08, 0x04, 0x7E, 0xAA}, + /* 4E N */ {0x7E, 0x04, 0x18, 0x20, 0x7E, 0xAA}, + /* 4F O */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, + + /* 50 P */ {0x7E, 0x12, 0x12, 0x0C, 0xAA, 0xAA}, + /* 51 Q */ {0x3C, 0x42, 0x42, 0xBC, 0xAA, 0xAA}, + /* 52 R */ {0x7E, 0x12, 0x12, 0x6C, 0xAA, 0xAA}, + /* 53 S */ {0x44, 0x4A, 0x4A, 0x30, 0xAA, 0xAA}, + /* 54 T */ {0x02, 0x7E, 0x02, 0xAA, 0xAA, 0xAA}, + /* 55 U */ {0x3E, 0x40, 0x40, 0x3E, 0xAA, 0xAA}, + /* 56 V */ {0x06, 0x18, 0x60, 0x18, 0x06, 0xAA}, + /* 57 W */ {0x3E, 0x40, 0x3E, 0x40, 0x3E, 0xAA}, + /* 58 X */ {0x42, 0x24, 0x18, 0x24, 0x42, 0xAA}, + /* 59 Y */ {0x9E, 0xA0, 0xA0, 0x7E, 0xAA, 0xAA}, + /* 5A Z */ {0x62, 0x52, 0x4A, 0x46, 0xAA, 0xAA}, + /* 5B [ */ {0x7E, 0x42, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 5C \ */ {0x06, 0x18, 0x60, 0xAA, 0xAA, 0xAA}, + /* 5D ] */ {0x42, 0x7E, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 5E ^ */ {0x04, 0x02, 0x04, 0xAA, 0xAA, 0xAA}, + /* 5F _ */ {0x40, 0x40, 0x40, 0xAA, 0xAA, 0xAA}, + + /* 60 ` */ {0x02, 0x04, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 61 a */ {0x20, 0x54, 0x54, 0x78, 0xAA, 0xAA}, + /* 62 b */ {0x7E, 0x44, 0x44, 0x38, 0xAA, 0xAA}, + /* 63 c */ {0x38, 0x44, 0x44, 0x28, 0xAA, 0xAA}, + /* 64 d */ {0x38, 0x44, 0x44, 0x7E, 0xAA, 0xAA}, + /* 65 e */ {0x38, 0x54, 0x54, 0x58, 0xAA, 0xAA}, + /* 66 f */ {0x7C, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 67 g */ {0x98, 0xA4, 0xA4, 0x7C, 0xAA, 0xAA}, + /* 68 h */ {0x7E, 0x04, 0x04, 0x78, 0xAA, 0xAA}, + /* 69 i */ {0x7A, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 6A j */ {0x40, 0x3A, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 6B k */ {0x7E, 0x10, 0x28, 0x44, 0xAA, 0xAA}, + /* 6C l */ {0x7E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 6D m */ {0x7C, 0x04, 0x78, 0x04, 0x78, 0xAA}, + /* 6E n */ {0x7C, 0x04, 0x04, 0x78, 0xAA, 0xAA}, + /* 6F o */ {0x38, 0x44, 0x44, 0x38, 0xAA, 0xAA}, + + /* 70 p */ {0xFC, 0x24, 0x24, 0x18, 0xAA, 0xAA}, + /* 71 q */ {0x18, 0x24, 0x24, 0xFC, 0xAA, 0xAA}, + /* 72 r */ {0x78, 0x04, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 73 s */ {0x48, 0x54, 0x54, 0x20, 0xAA, 0xAA}, + /* 74 t */ {0x04, 0x3E, 0x44, 0xAA, 0xAA, 0xAA}, + /* 75 u */ {0x3C, 0x40, 0x40, 0x3C, 0xAA, 0xAA}, + /* 76 v */ {0x0C, 0x30, 0x40, 0x30, 0x0C, 0xAA}, + /* 77 w */ {0x3C, 0x40, 0x3C, 0x40, 0x3C, 0xAA}, + /* 78 x */ {0x44, 0x28, 0x10, 0x28, 0x44, 0xAA}, + /* 79 y */ {0x1C, 0xA0, 0xA0, 0x7C, 0xAA, 0xAA}, + /* 7A z */ {0x64, 0x54, 0x4C, 0xAA, 0xAA, 0xAA}, + /* 7B { */ {0x08, 0x36, 0x41, 0xAA, 0xAA, 0xAA}, + /* 7C | */ {0x7E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, + /* 7D } */ {0x41, 0x36, 0x08, 0xAA, 0xAA, 0xAA}, + /* 7E ~ */ {0x20, 0x10, 0x20, 0x10, 0xAA, 0xAA}, + /* 7F DEL */ {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA} +}; + diff --git a/examples/stm32/f1/other/dogm128/dogm128.h b/examples/stm32/f1/other/dogm128/dogm128.h new file mode 100644 index 0000000..de43225 --- /dev/null +++ b/examples/stm32/f1/other/dogm128/dogm128.h @@ -0,0 +1,86 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef DOGM128_H +#define DOGM128_H + +#include +#include +#include + +/* PB10 GPIO - ~RESET + * PB12 SPI2_NSS - ~CS1 + * PB13 SPI2_SCK - SCL + * PB14 SPI2_MISO - A0 + * PB15 SPI2_MOSI - SI */ + +#define DOGM128_SPI SPI2 +#define DOGM128_RESET_PIN GPIO10 +#define DOGM128_RESET_PORT GPIOB +#define DOGM128_A0_PIN GPIO14 +#define DOGM128_A0_PORT GPIOB + +/* DOGM128 display commands */ +#define DOGM128_PAGE_BASE 0xB0 +#define DOGM128_PAGE0 0xB0 +#define DOGM128_PAGE1 0xB1 +#define DOGM128_PAGE2 0xB2 +#define DOGM128_PAGE3 0xB3 +#define DOGM128_PAGE4 0xB4 +#define DOGM128_PAGE5 0xB5 +#define DOGM128_PAGE6 0xB6 +#define DOGM128_PAGE7 0xB7 +#define DOGM128_DISPLAY_ON 0xAF +#define DOGM128_DISPLAY_OFF 0xAE +#define DOGM128_DISPLAY_START_ADDRESS_BASE 0x40 +#define DOGM128_ADC_NORMAL 0xA0 +#define DOGM128_ADC_REVERSE 0xA1 +#define DOGM128_DISPLAY_NORMAL 0xA6 +#define DOGM128_DISPLAY_REVERSE 0xA7 +#define DOGM128_ALL_POINTS_ON 0xA5 +#define DOGM128_ALL_POINTS_OFF 0xA4 +#define DOGM128_BIAS_19 0xA2 +#define DOGM128_BIAS_17 0xA3 +#define DOGM128_INTERNAL_RESET 0xE2 +#define DOGM128_COM_OUTPUT_SCAN_NORMAL 0xC0 +#define DOGM128_COM_OUTPUT_SCAN_REVERSE 0xC8 +#define DOGM128_POWER_CONTROL_BASE 0x28 +#define DOGM128_V0_OUTPUT_RESISTOR_BASE 0x20 +#define DOGM128_ELECTRONIC_VOLUME_MODE_SET 0x81 +#define DOGM128_STATIC_INDICATOR_OFF 0xAC +#define DOGM128_STATIC_INDICATOR_ON 0xAD +#define DOGM128_BOOSTER_RATIO_SET 0xF8 + +extern const u8 dogm128_font[96][6]; +extern u8 dogm128_ram[1024]; +extern u8 dogm128_cursor_x; +extern u8 dogm128_cursor_y; + +void dogm128_send_command(u8 command); +void dogm128_set_cursor(u8 xcoord, u8 ycoord); +void dogm128_print_char(u8 data); +void dogm128_print_string(char * s); +void dogm128_set_dot(u8 xcoord, u8 ycoord); +void dogm128_clear_dot(u8 xcoord, u8 ycoord); +void dogm128_send_data(u8 data); +void dogm128_init(); +void dogm128_update_display(); +void dogm128_clear(); + +#endif diff --git a/examples/stm32/f1/other/dogm128/main.c b/examples/stm32/f1/other/dogm128/main.c new file mode 100644 index 0000000..508971e --- /dev/null +++ b/examples/stm32/f1/other/dogm128/main.c @@ -0,0 +1,110 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include "./dogm128.h" + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); + + /* A0 of DOGM128 */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO14); + /*reset of DOGM128 */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); + + /* DOGM128/SPI2 clock and MOSI and NSS(CS1) */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO12); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO13); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO15); +} + +void spi_setup() +{ + /* the DOGM128 display is connected to SPI2, so initialise it correctly */ + + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_SPI2EN); + + spi_set_unidirectional_mode(DOGM128_SPI); /* we want to send only */ + spi_disable_crc(DOGM128_SPI); /* no CRC for this slave */ + spi_set_dff_8bit(DOGM128_SPI); /* 8-bit dataword-length */ + spi_set_full_duplex_mode(DOGM128_SPI); /* not receive-only */ + spi_enable_software_slave_management(DOGM128_SPI); /* we want to handle the CS signal in software */ + spi_set_nss_high(DOGM128_SPI); + spi_set_baudrate_prescaler(DOGM128_SPI, SPI_CR1_BR_FPCLK_DIV_256); /* PCLOCK/256 as clock */ + spi_set_master_mode(DOGM128_SPI); /* we want to control everything and generate the clock -> master */ + spi_set_clock_polarity_1(DOGM128_SPI); /* sck idle state high */ + spi_set_clock_phase_1(DOGM128_SPI); /* bit is taken on the second (rising edge) of sck */ + spi_enable_ss_output(DOGM128_SPI); + spi_enable(DOGM128_SPI); +} + +int main(void) +{ + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + spi_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + dogm128_init(); + dogm128_clear(); + + dogm128_set_cursor(0, 56); + dogm128_print_string("ABCDEFGHIJKLMNOPQRSTUVWXYZ"); + dogm128_set_cursor(0, 48); + dogm128_print_string("abcdefghijklmnopqrstuvwxyz"); + dogm128_set_cursor(0, 40); + dogm128_print_string(" !#$%&'()*+,-./0123456789"); + dogm128_set_cursor(0, 32); + dogm128_print_string(":;<=>?@[\\]^_`{|}~"); + + dogm128_set_dot(10, 10); + dogm128_set_dot(20, 10); + dogm128_set_dot(30, 10); + dogm128_set_dot(40, 10); + dogm128_set_dot(50, 10); + + dogm128_update_display(); + + gpio_set(GPIOB, GPIO7); /* LED1 off */ + while(1); /* Halt. */ + + return 0; +} + diff --git a/examples/stm32/f1/other/dogm128/main.ld b/examples/stm32/f1/other/dogm128/main.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/dogm128/main.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/Makefile b/examples/stm32/f1/other/i2c_stts75_sensor/Makefile new file mode 100644 index 0000000..d0f6ddf --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/Makefile @@ -0,0 +1,25 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = i2c_stts75_sensor + +OBJS = stts75.o + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/README b/examples/stm32/f1/other/i2c_stts75_sensor/README new file mode 100644 index 0000000..91e3ff6 --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/README @@ -0,0 +1,13 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program sends some characters on USART1. +Afterwards it connects to an STTS75 sensor (ST LM75 compatible) +at adress A0/1/2=0 and sets reverse polarity, 26 degree Tos and Thyst. + +It reads out the temperature and submits the temperature over USART1 in +binary format (ASCII 0/1). + +The terminal settings for the receiving device/PC are 115200 8n1. + diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.c b/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.c new file mode 100644 index 0000000..d8f2404 --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.c @@ -0,0 +1,146 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include "stts75.h" + +void usart_setup(void) +{ + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); + + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 115200, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX_RX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +void i2c_setup(void) +{ + /* Enable clocks for I2C2 and AFIO. */ + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_I2C2EN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + /* Set alternate functions for the SCL and SDA pins of I2C2. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, + GPIO_I2C2_SCL | GPIO_I2C2_SDA); + + /* Disable the I2C before changing any configuration. */ + i2c_peripheral_disable(I2C2); + + /* APB1 is running at 36MHz. */ + i2c_set_clock_frequency(I2C2, I2C_CR2_FREQ_36MHZ); + + /* 400KHz - I2C Fast Mode */ + i2c_set_fast_mode(I2C2); + + /* + * fclock for I2C is 36MHz APB2 -> cycle time 28ns, low time at 400KHz + * incl trise -> Thigh= 1600ns; CCR= tlow/tcycle= 0x1C,9; + * datasheet suggests 0x1e. + */ + i2c_set_ccr(I2C2, 0x1e); + + /* + * fclock for I2C is 36MHz -> cycle time 28ns, rise time for + * 400KHz => 300ns and 100KHz => 1000ns; 300ns/28ns = 10; + * incremented by 1 -> 11. + */ + i2c_set_trise(I2C2, 0x0b); + + /* + * This is our slave address - needed only if we want to receive from + * other masters. + */ + i2c_set_own_7bit_slave_address(I2C2, 0x32); + + /* If everything is configured -> enable the peripheral. */ + i2c_peripheral_enable(I2C2); +} + +int main(void) +{ + int i = 0; + u16 temperature; + + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + usart_setup(); + i2c_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + /* Send a message on USART1. */ + usart_send(USART1, 's'); + usart_send(USART1, 't'); + usart_send(USART1, 'm'); + usart_send(USART1, '\r'); + usart_send(USART1, '\n'); + + stts75_write_config(I2C2, STTS75_SENSOR0); + stts75_write_temp_os(I2C2, STTS75_SENSOR0, 0x1a00); /* 26 degrees */ + stts75_write_temp_hyst(I2C2, STTS75_SENSOR0, 0x1a00); + temperature = stts75_read_temperature(I2C2, STTS75_SENSOR0); + + /* Send the temperature as binary over USART1. */ + for (i = 15; i >= 0 ; i--) { + if (temperature & (1 << i)) + usart_send(USART1, '1'); + else + usart_send(USART1, '0'); + } + + usart_send(USART1, '\r'); + usart_send(USART1, '\n'); + + gpio_clear(GPIOB, GPIO6); /* LED2 on */ + + while(1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.ld b/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/i2c_stts75_sensor.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/stts75.c b/examples/stm32/f1/other/i2c_stts75_sensor/stts75.c new file mode 100644 index 0000000..f28019c --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/stts75.c @@ -0,0 +1,186 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include "stts75.h" + +void stts75_write_config(u32 i2c, u8 sensor) +{ + u32 reg32; + + /* Send START condition. */ + i2c_send_start(i2c); + + /* Waiting for START is send and switched to master mode. */ + while (!((I2C_SR1(i2c) & I2C_SR1_SB) + & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); + + /* Send destination address. */ + i2c_send_7bit_address(i2c, sensor, I2C_WRITE); + + /* Waiting for address is transferred. */ + while (!(I2C_SR1(i2c) & I2C_SR1_ADDR)); + + /* Cleaning ADDR condition sequence. */ + reg32 = I2C_SR2(i2c); + + /* Sending the data. */ + i2c_send_data(i2c, 0x1); /* stts75 config register */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); /* Await ByteTransferedFlag. */ + i2c_send_data(i2c, 0x4); /* pol reverse - LED glows if temp is below Tos/Thyst */ + while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE))); + + /* Send STOP condition. */ + i2c_send_stop(i2c); +} + +void stts75_write_temp_os(u32 i2c, u8 sensor, u16 temp_os) +{ + u32 reg32; + + /* Send START condition. */ + i2c_send_start(i2c); + + /* Waiting for START is send and switched to master mode. */ + while (!((I2C_SR1(i2c) & I2C_SR1_SB) + & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); + + /* Send destination address. */ + i2c_send_7bit_address(i2c, sensor, I2C_WRITE); + + /* Waiting for address is transferred. */ + while (!(I2C_SR1(i2c) & I2C_SR1_ADDR)); + + /* Cleaning ADDR condition sequence. */ + reg32 = I2C_SR2(i2c); + + /* Sending the data. */ + i2c_send_data(i2c, 0x3); /* OvertemperatureShutdown register */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); + i2c_send_data(i2c, (u8)(temp_os >> 8)); /* MSB */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); + i2c_send_data(i2c, (u8)(temp_os & 0xff00)); /* LSB */ + while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE))); /* After the last byte we have to wait for TxE too. */ + + /* Send STOP condition. */ + i2c_send_stop(i2c); +} + +void stts75_write_temp_hyst(u32 i2c, u8 sensor, u16 temp_hyst) +{ + u32 reg32; + + /* Send START condition. */ + i2c_send_start(i2c); + + /* Waiting for START is send and therefore switched to master mode. */ + while (!((I2C_SR1(i2c) & I2C_SR1_SB) + & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); + + /* Say to what address we want to talk to. */ + i2c_send_7bit_address(i2c, sensor, I2C_WRITE); + + /* Waiting for address is transferred. */ + while (!(I2C_SR1(i2c) & I2C_SR1_ADDR)); + + /* Cleaning ADDR condition sequence. */ + reg32 = I2C_SR2(i2c); + + /* Sending the data. */ + i2c_send_data(i2c, 0x2); /* TemperatureHysteresis register */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); + i2c_send_data(i2c, (u8)(temp_hyst >> 8)); /* MSB */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); + i2c_send_data(i2c, (u8)(temp_hyst & 0xff00)); /* LSB */ + while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE))); /* After the last byte we have to wait for TxE too. */ + + /* Send STOP condition. */ + i2c_send_stop(i2c); +} + +u16 stts75_read_temperature(u32 i2c, u8 sensor) +{ + u32 reg32; + u16 temperature; + + /* Send START condition. */ + i2c_send_start(i2c); + + /* Waiting for START is send and switched to master mode. */ + while (!((I2C_SR1(i2c) & I2C_SR1_SB) + & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); + + /* Say to what address we want to talk to. */ + /* Yes, WRITE is correct - for selecting register in STTS75. */ + i2c_send_7bit_address(i2c, sensor, I2C_WRITE); + + /* Waiting for address is transferred. */ + while (!(I2C_SR1(i2c) & I2C_SR1_ADDR)); + + /* Cleaning ADDR condition sequence. */ + reg32 = I2C_SR2(i2c); + + i2c_send_data(i2c, 0x0); /* temperature register */ + while (!(I2C_SR1(i2c) & (I2C_SR1_BTF|I2C_SR1_TxE))); + + /* + * Now we transferred that we want to ACCESS the temperature register. + * Now we send another START condition (repeated START) and then + * transfer the destination but with flag READ. + */ + + /* Send START condition. */ + i2c_send_start(i2c); + + /* Waiting for START is send and switched to master mode. */ + while (!((I2C_SR1(i2c) & I2C_SR1_SB) + & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); + + /* Say to what address we want to talk to. */ + i2c_send_7bit_address(i2c, sensor, I2C_READ); + + /* 2-byte receive is a special case. See datasheet POS bit. */ + I2C_CR1(i2c) |= (I2C_CR1_POS | I2C_CR1_ACK); + + /* Waiting for address is transferred. */ + while (!(I2C_SR1(i2c) & I2C_SR1_ADDR)); + + /* Cleaning ADDR condition sequence. */ + reg32 = I2C_SR2(i2c); + + /* Cleaning I2C_SR1_ACK. */ + I2C_CR1(i2c) &= ~ I2C_CR1_ACK; + + /* Now the slave should begin to send us the first byte. Await BTF. */ + while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); + temperature = (u16)(I2C_DR(i2c) << 8); /* MSB */ + + /* + * Yes they mean it: we have to generate the STOP condition before + * saving the 1st byte. + */ + I2C_CR1(i2c) |= I2C_CR1_STOP; + + temperature |= I2C_DR(i2c); /* LSB */ + + /* Original state. */ + I2C_CR1(i2c) &= ~I2C_CR1_POS; + + return temperature; +} diff --git a/examples/stm32/f1/other/i2c_stts75_sensor/stts75.h b/examples/stm32/f1/other/i2c_stts75_sensor/stts75.h new file mode 100644 index 0000000..57f6190 --- /dev/null +++ b/examples/stm32/f1/other/i2c_stts75_sensor/stts75.h @@ -0,0 +1,39 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef STTS75_H +#define STTS75_H + +#include + +#define STTS75_SENSOR0 0x48 +#define STTS75_SENSOR1 0x49 +#define STTS75_SENSOR2 0x4a +#define STTS75_SENSOR3 0x4b +#define STTS75_SENSOR4 0x4c +#define STTS75_SENSOR5 0x4d +#define STTS75_SENSOR6 0x4e +#define STTS75_SENSOR7 0x4f + +void stts75_write_config(u32 i2c, u8 sensor); +void stts75_write_temp_os(u32 i2c, u8 sensor, u16 temp_os); +void stts75_write_temp_hyst(u32 i2c, u8 sensor, u16 temp_hyst); +u16 stts75_read_temperature(u32 i2c, u8 sensor); + +#endif diff --git a/examples/stm32/f1/other/rtc/Makefile b/examples/stm32/f1/other/rtc/Makefile new file mode 100644 index 0000000..1efa7ac --- /dev/null +++ b/examples/stm32/f1/other/rtc/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = rtc + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/rtc/README b/examples/stm32/f1/other/rtc/README new file mode 100644 index 0000000..f1e3975 --- /dev/null +++ b/examples/stm32/f1/other/rtc/README @@ -0,0 +1,6 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is a small RTC example project. + diff --git a/examples/stm32/f1/other/rtc/rtc.c b/examples/stm32/f1/other/rtc/rtc.c new file mode 100644 index 0000000..28ae24c --- /dev/null +++ b/examples/stm32/f1/other/rtc/rtc.c @@ -0,0 +1,116 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Lord James + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 38400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void nvic_setup(void) +{ + /* Without this the RTC interrupt routine will never be called. */ + nvic_enable_irq(NVIC_RTC_IRQ); + nvic_set_priority(NVIC_RTC_IRQ, 1); +} + +void rtc_isr(void) +{ + volatile u32 j = 0, c = 0; + + /* The interrupt flag isn't cleared by hardware, we have to do it. */ + rtc_clear_flag(RTC_SEC); + + /* Visual output. */ + gpio_toggle(GPIOC, GPIO12); + + c = rtc_get_counter_val(); + + /* Display the current counter value in binary via USART1. */ + for (j = 0; j < 32; j++) { + if ((c & (0x80000000 >> j)) != 0) { + usart_send(USART1, '1'); + } else { + usart_send(USART1, '0'); + } + } + usart_send(USART1, '\n'); +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + usart_setup(); + + /* + * If the RTC is pre-configured just allow access, don't reconfigure. + * Otherwise enable it with the LSE as clock source and 0x7fff as + * prescale value. + */ + rtc_auto_awake(LSE, 0x7fff); + + /* Setup the RTC interrupt. */ + nvic_setup(); + + /* Enable the RTC interrupt to occur off the SEC flag. */ + rtc_interrupt_enable(RTC_SEC); + + while(1); + + return 0; +} diff --git a/examples/stm32/f1/other/rtc/rtc.ld b/examples/stm32/f1/other/rtc/rtc.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/other/rtc/rtc.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/systick/Makefile b/examples/stm32/f1/other/systick/Makefile new file mode 100644 index 0000000..91b5cb5 --- /dev/null +++ b/examples/stm32/f1/other/systick/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = systick + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/systick/README b/examples/stm32/f1/other/systick/README new file mode 100644 index 0000000..affb4b8 --- /dev/null +++ b/examples/stm32/f1/other/systick/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program blinks a LED on PortB Pin 6. 1 second on / 1 second off. +Blinking is done via the systick timer interrupt. + diff --git a/examples/stm32/f1/other/systick/systick.c b/examples/stm32/f1/other/systick/systick.c new file mode 100644 index 0000000..173ff2a --- /dev/null +++ b/examples/stm32/f1/other/systick/systick.c @@ -0,0 +1,75 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +u32 temp32; + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +void sys_tick_handler() +{ + temp32++; + + /* we call this handler every 1ms so 1000ms = 1s on/off */ + if (temp32 == 1000) { + gpio_toggle(GPIOB, GPIO6); /* LED2 on/off */ + temp32 = 0; + } +} + +int main(void) +{ + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + temp32 = 0; + + /* 72MHz / 8 => 9000000 counts per second */ + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + + /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ + systick_set_reload(9000); + + systick_interrupt_enable(); + + /* start counting */ + systick_counter_enable(); + + while(1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/other/systick/systick.ld b/examples/stm32/f1/other/systick/systick.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/systick/systick.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/timer_interrupt/Makefile b/examples/stm32/f1/other/timer_interrupt/Makefile new file mode 100644 index 0000000..86aced4 --- /dev/null +++ b/examples/stm32/f1/other/timer_interrupt/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = timer + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/timer_interrupt/README b/examples/stm32/f1/other/timer_interrupt/README new file mode 100644 index 0000000..e6a22c4 --- /dev/null +++ b/examples/stm32/f1/other/timer_interrupt/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program blinks a LED on PortB Pin 6. 1 second on / 1 second off. +Blinking is made only with the timer interrupt of the TIM2 timer. + diff --git a/examples/stm32/f1/other/timer_interrupt/timer.c b/examples/stm32/f1/other/timer_interrupt/timer.c new file mode 100644 index 0000000..422df88 --- /dev/null +++ b/examples/stm32/f1/other/timer_interrupt/timer.c @@ -0,0 +1,85 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +void gpio_setup(void) +{ + /* Enable GPIOB clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + + /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +void nvic_setup() +{ + /* without this the timer interrupt routine will never be called */ + nvic_enable_irq(NVIC_TIM2_IRQ); + nvic_set_priority(NVIC_TIM2_IRQ, 1); +} + +void tim2_isr() +{ + /* LED2 on/off */ + gpio_toggle(GPIOB, GPIO6); + + /* clear interrrupt flag */ + TIM_SR(TIM2) &= ~TIM_SR_UIF; +} + +int main(void) +{ + rcc_clock_setup_in_hse_16mhz_out_72mhz(); + gpio_setup(); + nvic_setup(); + + gpio_clear(GPIOB, GPIO7); /* LED1 on */ + gpio_set(GPIOB, GPIO6); /* LED2 off */ + + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM2EN); + + /* the goal is to let the LED2 glow for a second and then be off for a second */ + + /* Set timer start value */ + TIM_CNT(TIM2) = 1; + + /* Set timer prescaler. 72MHz/1440 => 50000 counts per second */ + TIM_PSC(TIM2) = 1440; + + /* End timer value. If this value is reached an interrupt is generated */ + TIM_ARR(TIM2) = 50000; + + /* Update interrupt enable */ + TIM_DIER(TIM2) |= TIM_DIER_UIE; + + /* Start timer */ + TIM_CR1(TIM2) |= TIM_CR1_CEN; + + while(1); /* Halt. */ + + return 0; +} diff --git a/examples/stm32/f1/other/timer_interrupt/timer.ld b/examples/stm32/f1/other/timer_interrupt/timer.ld new file mode 100644 index 0000000..4f609a8 --- /dev/null +++ b/examples/stm32/f1/other/timer_interrupt/timer.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for an STM32F103RBT6 board (128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/usb_cdcacm/Makefile b/examples/stm32/f1/other/usb_cdcacm/Makefile new file mode 100644 index 0000000..38179e3 --- /dev/null +++ b/examples/stm32/f1/other/usb_cdcacm/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = cdcacm + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/usb_cdcacm/README b/examples/stm32/f1/other/usb_cdcacm/README new file mode 100644 index 0000000..2f1ee4b --- /dev/null +++ b/examples/stm32/f1/other/usb_cdcacm/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB CDC-ACM device (aka Virtual Serial Port) +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/other/usb_cdcacm/cdcacm.c b/examples/stm32/f1/other/usb_cdcacm/cdcacm.c new file mode 100644 index 0000000..d26b898 --- /dev/null +++ b/examples/stm32/f1/other/usb_cdcacm/cdcacm.c @@ -0,0 +1,245 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +static const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = USB_CLASS_CDC, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5740, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +/* This notification endpoint isn't implemented. According to CDC spec its + * optional, but its absence causes a NULL pointer dereference in Linux cdc_acm + * driver. */ +static const struct usb_endpoint_descriptor comm_endp[] = {{ + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x83, + .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT, + .wMaxPacketSize = 16, + .bInterval = 255, +}}; + +static const struct usb_endpoint_descriptor data_endp[] = {{ + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x01, + .bmAttributes = USB_ENDPOINT_ATTR_BULK, + .wMaxPacketSize = 64, + .bInterval = 1, +}, { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x82, + .bmAttributes = USB_ENDPOINT_ATTR_BULK, + .wMaxPacketSize = 64, + .bInterval = 1, +}}; + +static const struct { + struct usb_cdc_header_descriptor header; + struct usb_cdc_call_management_descriptor call_mgmt; + struct usb_cdc_acm_descriptor acm; + struct usb_cdc_union_descriptor cdc_union; +} __attribute__((packed)) cdcacm_functional_descriptors = { + .header = { + .bFunctionLength = sizeof(struct usb_cdc_header_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_HEADER, + .bcdCDC = 0x0110, + }, + .call_mgmt = { + .bFunctionLength = + sizeof(struct usb_cdc_call_management_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT, + .bmCapabilities = 0, + .bDataInterface = 1, + }, + .acm = { + .bFunctionLength = sizeof(struct usb_cdc_acm_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_ACM, + .bmCapabilities = 0, + }, + .cdc_union = { + .bFunctionLength = sizeof(struct usb_cdc_union_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_UNION, + .bControlInterface = 0, + .bSubordinateInterface0 = 1, + } +}; + +static const struct usb_interface_descriptor comm_iface[] = {{ + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_CDC, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, + .bInterfaceProtocol = USB_CDC_PROTOCOL_AT, + .iInterface = 0, + + .endpoint = comm_endp, + + .extra = &cdcacm_functional_descriptors, + .extralen = sizeof(cdcacm_functional_descriptors) +}}; + +static const struct usb_interface_descriptor data_iface[] = {{ + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_DATA, + .bInterfaceSubClass = 0, + .bInterfaceProtocol = 0, + .iInterface = 0, + + .endpoint = data_endp, +}}; + +static const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = comm_iface, +}, { + .num_altsetting = 1, + .altsetting = data_iface, +}}; + +static const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 2, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0x80, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "CDC-ACM Demo", + "DEMO" +}; + +static int cdcacm_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + (void)complete; + (void)buf; + + switch(req->bRequest) { + case USB_CDC_REQ_SET_CONTROL_LINE_STATE: { + /* This Linux cdc_acm driver requires this to be implemented + * even though it's optional in the CDC spec, and we don't + * advertise it in the ACM functional descriptor. */ + char buf[10]; + struct usb_cdc_notification *notif = (void*)buf; + + /* We echo signals back to host as notification */ + notif->bmRequestType = 0xA1; + notif->bNotification = USB_CDC_NOTIFY_SERIAL_STATE; + notif->wValue = 0; + notif->wIndex = 0; + notif->wLength = 2; + buf[8] = req->wValue & 3; + buf[9] = 0; + //usbd_ep_write_packet(0x83, buf, 10); + return 1; + } + case USB_CDC_REQ_SET_LINE_CODING: + if(*len < sizeof(struct usb_cdc_line_coding)) + return 0; + + return 1; + } + return 0; +} + +static void cdcacm_data_rx_cb(u8 ep) +{ + (void)ep; + + char buf[64]; + int len = usbd_ep_read_packet(0x01, buf, 64); + if(len) { + usbd_ep_write_packet(0x82, buf, len); + buf[len] = 0; + } +} + +static void cdcacm_set_config(u16 wValue) +{ + (void)wValue; + + usbd_ep_setup(0x01, USB_ENDPOINT_ATTR_BULK, 64, cdcacm_data_rx_cb); + usbd_ep_setup(0x82, USB_ENDPOINT_ATTR_BULK, 64, NULL); + usbd_ep_setup(0x83, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL); + + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + cdcacm_control_request); +} + +int main(void) +{ + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON; + + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_register_set_config_callback(cdcacm_set_config); + + gpio_set(GPIOA, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/other/usb_cdcacm/cdcacm.ld b/examples/stm32/f1/other/usb_cdcacm/cdcacm.ld new file mode 100644 index 0000000..3cd6316 --- /dev/null +++ b/examples/stm32/f1/other/usb_cdcacm/cdcacm.ld @@ -0,0 +1,29 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 64K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/usb_dfu/Makefile b/examples/stm32/f1/other/usb_dfu/Makefile new file mode 100644 index 0000000..48e2d6b --- /dev/null +++ b/examples/stm32/f1/other/usb_dfu/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbdfu + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/usb_dfu/README b/examples/stm32/f1/other/usb_dfu/README new file mode 100644 index 0000000..9c0169a --- /dev/null +++ b/examples/stm32/f1/other/usb_dfu/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Device Firmware Upgrade (DFU) bootloader +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/other/usb_dfu/usbdfu.c b/examples/stm32/f1/other/usb_dfu/usbdfu.c new file mode 100644 index 0000000..02d919f --- /dev/null +++ b/examples/stm32/f1/other/usb_dfu/usbdfu.c @@ -0,0 +1,270 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +#define APP_ADDRESS 0x08002000 + +/* Commands sent with wBlockNum == 0 as per ST implementation. */ +#define CMD_SETADDR 0x21 +#define CMD_ERASE 0x41 + +/* We need a special large control buffer for this device: */ +u8 usbd_control_buffer[1024]; + +static enum dfu_state usbdfu_state = STATE_DFU_IDLE; + +static struct { + u8 buf[sizeof(usbd_control_buffer)]; + u16 len; + u32 addr; + u16 blocknum; +} prog; + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0xDF11, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, /* Device Firmware Upgrade */ + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 2, + + /* The ST Microelectronics DfuSe application needs this string. + * The format isn't documented... */ + .iInterface = 4, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &iface, +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "DFU Demo", + "DEMO", + /* This string is used by ST Microelectronics' DfuSe utility */ + "@Internal Flash /0x08000000/8*001Ka,56*001Kg" +}; + +static u8 usbdfu_getstatus(u32 *bwPollTimeout) +{ + switch(usbdfu_state) { + case STATE_DFU_DNLOAD_SYNC: + usbdfu_state = STATE_DFU_DNBUSY; + *bwPollTimeout = 100; + return DFU_STATUS_OK; + + case STATE_DFU_MANIFEST_SYNC: + /* Device will reset when read is complete */ + usbdfu_state = STATE_DFU_MANIFEST; + return DFU_STATUS_OK; + + default: + return DFU_STATUS_OK; + } +} + +static void usbdfu_getstatus_complete(struct usb_setup_data *req) +{ + int i; + (void)req; + + switch(usbdfu_state) { + case STATE_DFU_DNBUSY: + + flash_unlock(); + if(prog.blocknum == 0) { + switch(prog.buf[0]) { + case CMD_ERASE: + flash_erase_page(*(u32*)(prog.buf+1)); + case CMD_SETADDR: + prog.addr = *(u32*)(prog.buf+1); + } + } else { + u32 baseaddr = prog.addr + + ((prog.blocknum - 2) * + dfu_function.wTransferSize); + for(i = 0; i < prog.len; i += 2) + flash_program_half_word(baseaddr + i, + *(u16*)(prog.buf+i)); + } + flash_lock(); + + /* We jump straight to dfuDNLOAD-IDLE, + * skipping dfuDNLOAD-SYNC + */ + usbdfu_state = STATE_DFU_DNLOAD_IDLE; + return; + + case STATE_DFU_MANIFEST: + /* USB device must detach, we just reset... */ + scb_reset_system(); + return; /* Will never return */ + default: + return; + } +} + +static int usbdfu_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + + if((req->bmRequestType & 0x7F) != 0x21) + return 0; /* Only accept class request */ + + switch(req->bRequest) { + case DFU_DNLOAD: + if((len == NULL) || (*len == 0)) { + usbdfu_state = STATE_DFU_MANIFEST_SYNC; + return 1; + } else { + /* Copy download data for use on GET_STATUS */ + prog.blocknum = req->wValue; + prog.len = *len; + memcpy(prog.buf, *buf, *len); + usbdfu_state = STATE_DFU_DNLOAD_SYNC; + return 1; + } + case DFU_CLRSTATUS: + /* Clear error and return to dfuIDLE */ + if(usbdfu_state == STATE_DFU_ERROR) + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_ABORT: + /* Abort returns to dfuIDLE state */ + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_UPLOAD: + /* Upload not supported for now */ + return 0; + case DFU_GETSTATUS: { + u32 bwPollTimeout = 0; /* 24-bit integer in DFU class spec */ + + (*buf)[0] = usbdfu_getstatus(&bwPollTimeout); + (*buf)[1] = bwPollTimeout & 0xFF; + (*buf)[2] = (bwPollTimeout >> 8) & 0xFF; + (*buf)[3] = (bwPollTimeout >> 16) & 0xFF; + (*buf)[4] = usbdfu_state; + (*buf)[5] = 0; /* iString not used here */ + *len = 6; + + *complete = usbdfu_getstatus_complete; + + return 1; + } + case DFU_GETSTATE: + /* Return state with no state transision */ + *buf[0] = usbdfu_state; + *len = 1; + return 1; + } + + return 0; +} + +int main(void) +{ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + if(!gpio_get(GPIOA, GPIO10)) { + /* Boot the application if it's valid */ + if((*(volatile u32*)APP_ADDRESS & 0x2FFE0000) == 0x20000000) { + /* Set vector table base address */ + SCB_VTOR = APP_ADDRESS & 0xFFFF; + /* Initialise master stack pointer */ + asm volatile ("msr msp, %0"::"g" + (*(volatile u32*)APP_ADDRESS)); + /* Jump to application */ + (*(void(**)())(APP_ADDRESS + 4))(); + } + } + + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON; + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + + usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings); + usbd_set_control_buffer_size(sizeof(usbd_control_buffer)); + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + usbdfu_control_request); + + gpio_set(GPIOA, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/other/usb_dfu/usbdfu.ld b/examples/stm32/f1/other/usb_dfu/usbdfu.ld new file mode 100644 index 0000000..6a01797 --- /dev/null +++ b/examples/stm32/f1/other/usb_dfu/usbdfu.ld @@ -0,0 +1,29 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 8K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/other/usb_hid/Makefile b/examples/stm32/f1/other/usb_hid/Makefile new file mode 100644 index 0000000..d831e9e --- /dev/null +++ b/examples/stm32/f1/other/usb_hid/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbhid + +include ../../Makefile.include + diff --git a/examples/stm32/f1/other/usb_hid/README b/examples/stm32/f1/other/usb_hid/README new file mode 100644 index 0000000..92645c9 --- /dev/null +++ b/examples/stm32/f1/other/usb_hid/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Human Interface Device (HID) +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/other/usb_hid/usbhid.c b/examples/stm32/f1/other/usb_hid/usbhid.c new file mode 100644 index 0000000..7c0186e --- /dev/null +++ b/examples/stm32/f1/other/usb_hid/usbhid.c @@ -0,0 +1,272 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +/* Define this to include the DFU APP interface. */ +#define INCLUDE_DFU_INTERFACE + +#ifdef INCLUDE_DFU_INTERFACE +#include +#include +#endif + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5710, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +/* I have no idea what this means. I haven't read the HID spec. */ +static const u8 hid_report_descriptor[] = { + 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, + 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, + 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, + 0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, + 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x09, 0x38, + 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x03, + 0x81, 0x06, 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09, + 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, + 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1, + 0x01, 0xc0 +}; + +static const struct { + struct usb_hid_descriptor hid_descriptor; + struct { + u8 bReportDescriptorType; + u16 wDescriptorLength; + } __attribute__((packed)) hid_report; +} __attribute__((packed)) hid_function = { + .hid_descriptor = { + .bLength = sizeof(hid_function), + .bDescriptorType = USB_DT_HID, + .bcdHID = 0x0100, + .bCountryCode = 0, + .bNumDescriptors = 1, + }, + .hid_report = { + .bReportDescriptorType = USB_DT_REPORT, + .wDescriptorLength = sizeof(hid_report_descriptor), + } +}; + +const struct usb_endpoint_descriptor hid_endpoint = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x81, + .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT, + .wMaxPacketSize = 4, + .bInterval = 0x20, +}; + +const struct usb_interface_descriptor hid_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_HID, + .bInterfaceSubClass = 1, /* boot */ + .bInterfaceProtocol = 2, /* mouse */ + .iInterface = 0, + + .endpoint = &hid_endpoint, + + .extra = &hid_function, + .extralen = sizeof(hid_function), +}; + +#ifdef INCLUDE_DFU_INTERFACE +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor dfu_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 1, + .iInterface = 0, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; +#endif + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &hid_iface, +#ifdef INCLUDE_DFU_INTERFACE +}, { + .num_altsetting = 1, + .altsetting = &dfu_iface, +#endif +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, +#ifdef INCLUDE_DFU_INTERFACE + .bNumInterfaces = 2, +#else + .bNumInterfaces = 1, +#endif + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "HID Demo", + "DEMO", +}; + +static int hid_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)complete; + + if((req->bmRequestType != 0x81) || + (req->bRequest != USB_REQ_GET_DESCRIPTOR) || + (req->wValue != 0x2200)) + return 0; + + /* Handle the HID report descriptor */ + *buf = (u8*)hid_report_descriptor; + *len = sizeof(hid_report_descriptor); + + return 1; +} + +#ifdef INCLUDE_DFU_INTERFACE +static void dfu_detach_complete(struct usb_setup_data *req) +{ + (void)req; + + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); + gpio_set(GPIOA, GPIO10); + scb_reset_core(); +} + +static int dfu_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)buf; + (void)len; + + if((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH)) + return 0; /* Only accept class request */ + + *complete = dfu_detach_complete; + + return 1; +} +#endif + +static void hid_set_config(u16 wValue) +{ + (void)wValue; + + usbd_ep_setup(0x81, USB_ENDPOINT_ATTR_INTERRUPT, 4, NULL); + + usbd_register_control_callback( + USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + hid_control_request); +#ifdef INCLUDE_DFU_INTERFACE + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + dfu_control_request); +#endif + + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_reload(100000); + systick_interrupt_enable(); + systick_counter_enable(); +} + +int main(void) +{ + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON; + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_register_set_config_callback(hid_set_config); + + gpio_set(GPIOA, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + + while (1) + usbd_poll(); +} + +void sys_tick_handler(void) +{ + static int x = 0; + static int dir = 1; + u8 buf[4] = {0, 0, 0, 0}; + + buf[1] = dir; + x += dir; + if(x > 30) dir = -dir; + if(x < -30) dir = -dir; + + usbd_ep_write_packet(0x81, buf, 4); +} diff --git a/examples/stm32/f1/other/usb_hid/usbhid.ld b/examples/stm32/f1/other/usb_hid/usbhid.ld new file mode 100644 index 0000000..3cd6316 --- /dev/null +++ b/examples/stm32/f1/other/usb_hid/usbhid.ld @@ -0,0 +1,29 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 64K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-discovery/button/Makefile b/examples/stm32/f1/stm32-discovery/button/Makefile new file mode 100644 index 0000000..96731c2 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/button/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = button + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-discovery/button/README b/examples/stm32/f1/stm32-discovery/button/README new file mode 100644 index 0000000..38bc1ea --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/button/README @@ -0,0 +1,8 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example blinks the green LED on the ST STM32VLDISCOVERY eval board. + +When you press the 'USER' button, the blinking is slower. + diff --git a/examples/stm32/f1/stm32-discovery/button/button.c b/examples/stm32/f1/stm32-discovery/button/button.c new file mode 100644 index 0000000..87ce5cc --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/button/button.c @@ -0,0 +1,76 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * Copyright (C) 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +u16 exti_line_state; + +/* Set STM32 to 24 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_24mhz(); +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO9 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO9); +} + +void button_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Set GPIO0 (in GPIO port A) to 'input open-drain'. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO0); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + button_setup(); + + /* Blink the LED (PC9) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO9); + + /* Upon button press, blink more slowly. */ + exti_line_state = GPIOA_IDR; + if ((exti_line_state & (1 << 0)) != 0) { + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-discovery/button/button.ld b/examples/stm32/f1/stm32-discovery/button/button.ld new file mode 100644 index 0000000..157204a --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/button/button.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for ST STM32VLDISCOVERY (STM32F100RB, 128K flash, 8K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-discovery/fancyblink/Makefile b/examples/stm32/f1/stm32-discovery/fancyblink/Makefile new file mode 100644 index 0000000..1baec4d --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/fancyblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = fancyblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-discovery/fancyblink/README b/examples/stm32/f1/stm32-discovery/fancyblink/README new file mode 100644 index 0000000..b5d794c --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/fancyblink/README @@ -0,0 +1,9 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is the smallest-possible example program using libopencm3. + +It's intended for the ST STM32VLDISCOVERY eval board. It should blink +the LEDs on the board. + diff --git a/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.c b/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.c new file mode 100644 index 0000000..38a4c4b --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.c @@ -0,0 +1,61 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * Copyright (C) 2011 Damjan Marion + * Copyright (C) 2011 Mark Panajotovic + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +/* Set STM32 to 24 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_24mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); +} + +void gpio_setup(void) +{ + /* Set GPIO8/9 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO8); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO9); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Set one LED for wigwag effect when toggling. */ + gpio_set(GPIOC, GPIO8); + + /* Blink the LEDs (PC8 and PC9) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO8 | GPIO9); /* Toggle LEDs. */ + for (i = 0; i < 2000000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.ld b/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.ld new file mode 100644 index 0000000..157204a --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/fancyblink/fancyblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for ST STM32VLDISCOVERY (STM32F100RB, 128K flash, 8K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-discovery/miniblink/Makefile b/examples/stm32/f1/stm32-discovery/miniblink/Makefile new file mode 100644 index 0000000..24a478b --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/miniblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = miniblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-discovery/miniblink/README b/examples/stm32/f1/stm32-discovery/miniblink/README new file mode 100644 index 0000000..cffce60 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/miniblink/README @@ -0,0 +1,9 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is the smallest-possible example program using libopencm3. + +It's intended for the ST STM32VLDISCOVERY eval board. It should blink +the blue LED on the board. + diff --git a/examples/stm32/f1/stm32-discovery/miniblink/miniblink.c b/examples/stm32/f1/stm32-discovery/miniblink/miniblink.c new file mode 100644 index 0000000..973fab5 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/miniblink/miniblink.c @@ -0,0 +1,71 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + /* Manually: */ + // RCC_APB2ENR |= RCC_APB2ENR_IOPCEN; + /* Using API functions: */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO8 (in GPIO port C) to 'output push-pull'. */ + /* Manually: */ + // GPIOC_CRH = (GPIO_CNF_OUTPUT_PUSHPULL << (((8 - 8) * 4) + 2)); + // GPIOC_CRH |= (GPIO_MODE_OUTPUT_2_MHZ << ((8 - 8) * 4)); + /* Using API functions: */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO8); +} + +int main(void) +{ + int i; + + gpio_setup(); + + /* Blink the LED (PC8) on the board. */ + while (1) { + /* Manually: */ + // GPIOC_BSRR = GPIO8; /* LED off */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + // GPIOC_BRR = GPIO8; /* LED on */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + + /* Using API functions gpio_set()/gpio_clear(): */ + // gpio_set(GPIOC, GPIO8); /* LED off */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + // gpio_clear(GPIOC, GPIO8); /* LED on */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + + /* Using API function gpio_toggle(): */ + gpio_toggle(GPIOC, GPIO8); /* LED on/off */ + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-discovery/miniblink/miniblink.ld b/examples/stm32/f1/stm32-discovery/miniblink/miniblink.ld new file mode 100644 index 0000000..157204a --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/miniblink/miniblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for ST STM32VLDISCOVERY (STM32F100RB, 128K flash, 8K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-discovery/rtc/Makefile b/examples/stm32/f1/stm32-discovery/rtc/Makefile new file mode 100644 index 0000000..1efa7ac --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/rtc/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = rtc + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-discovery/rtc/README b/examples/stm32/f1/stm32-discovery/rtc/README new file mode 100644 index 0000000..d4509e4 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/rtc/README @@ -0,0 +1,9 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is a small RTC example project. + +It blinks the ST STM32VLDISCOVERY's blue LED at 1Hz, and sends the value of +the RTC counter register down the serial line (PA9) at 38400,8N1. + diff --git a/examples/stm32/f1/stm32-discovery/rtc/rtc.c b/examples/stm32/f1/stm32-discovery/rtc/rtc.c new file mode 100644 index 0000000..fa8a966 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/rtc/rtc.c @@ -0,0 +1,129 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Lord James + * Copyright (C) 2011 Mark Panajotovic + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_24mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + // usart_set_baudrate(USART1, 38400); + /* TODO usart_set_baudrate() doesn't support 24MHz clock (yet). */ + /* This is the equivalent: */ + USART_BRR(USART1) = (u16)((24000000 << 4) / (38400 * 16)); + + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Set GPIO8 (in GPIO port C) to 'output push-pull'. */ + /* This drives the blue LED on the STM32VLDISCOVERY. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO8); +} + +void nvic_setup(void) +{ + /* Without this the RTC interrupt routine will never be called. */ + nvic_enable_irq(NVIC_RTC_IRQ); + nvic_set_priority(NVIC_RTC_IRQ, 1); +} + +void rtc_isr(void) +{ + volatile u32 j = 0, c = 0; + + /* The interrupt flag isn't cleared by hardware, we have to do it. */ + rtc_clear_flag(RTC_SEC); + + /* Visual output. */ + gpio_toggle(GPIOC, GPIO8); + + c = rtc_get_counter_val(); + + /* Display the current counter value in binary via USART1. */ + for (j = 0; j < 32; j++) { + if ((c & (0x80000000 >> j)) != 0) + usart_send_blocking(USART1, '1'); + else + usart_send_blocking(USART1, '0'); + } + usart_send_blocking(USART1, '\n'); + usart_send_blocking(USART1, '\r'); +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + usart_setup(); + + /* + * If the RTC is pre-configured just allow access, don't reconfigure. + * Otherwise enable it with the LSE as clock source and 0x7fff as + * prescale value. + */ + rtc_auto_awake(LSE, 0x7fff); + + /* The above mode will not reset the RTC when you press the RST button. + * It will also continue to count while the MCU is held in reset. If + * you want it to reset, comment out the above and use the following: + */ + // rtc_awake_from_off(LSE); + // rtc_set_prescale_val(0x7fff); + + /* Setup the RTC interrupt. */ + nvic_setup(); + + /* Enable the RTC interrupt to occur off the SEC flag. */ + rtc_interrupt_enable(RTC_SEC); + + while(1); + + return 0; +} diff --git a/examples/stm32/f1/stm32-discovery/rtc/rtc.ld b/examples/stm32/f1/stm32-discovery/rtc/rtc.ld new file mode 100644 index 0000000..157204a --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/rtc/rtc.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for ST STM32VLDISCOVERY (STM32F100RB, 128K flash, 8K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-discovery/usart/Makefile b/examples/stm32/f1/stm32-discovery/usart/Makefile new file mode 100644 index 0000000..2c1e1b1 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/usart/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-discovery/usart/README b/examples/stm32/f1/stm32-discovery/usart/README new file mode 100644 index 0000000..6d09139 --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/usart/README @@ -0,0 +1,12 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program sends some characters on USART1 on the +ST STM32VLDISCOVERY eval board. + +The terminal settings for the receiving device/PC are 38400 8n1. + +The sending is done in a blocking way in the code, see the usart_irq example +for a more elaborate USART example. + diff --git a/examples/stm32/f1/stm32-discovery/usart/usart.c b/examples/stm32/f1/stm32-discovery/usart/usart.c new file mode 100644 index 0000000..942805b --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/usart/usart.c @@ -0,0 +1,87 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_24mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_TX/GPIO9 on GPIO port A for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + // usart_set_baudrate(USART1, 38400); + /* TODO usart_set_baudrate() doesn't support 24MHz clock (yet). */ + /* This is the equivalent: */ + USART_BRR(USART1) = (u16)((24000000 << 4) / (38400 * 16)); + + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + /* Set GPIO9 (in GPIO port C) to 'output push-pull'. [LED] */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO9); +} + +int main(void) +{ + int i, j = 0, c = 0; + + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Blink the LED (PC9) on the board with every transmitted byte. */ + while (1) { + gpio_toggle(GPIOC, GPIO9); /* LED on/off */ + usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */ + c = (c == 9) ? 0 : c + 1; /* Increment c. */ + if ((j++ % 80) == 0) { /* Newline after line full. */ + usart_send_blocking(USART1, '\r'); + usart_send_blocking(USART1, '\n'); + } + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("NOP"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-discovery/usart/usart.ld b/examples/stm32/f1/stm32-discovery/usart/usart.ld new file mode 100644 index 0000000..157204a --- /dev/null +++ b/examples/stm32/f1/stm32-discovery/usart/usart.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for ST STM32VLDISCOVERY (STM32F100RB, 128K flash, 8K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/button/Makefile b/examples/stm32/f1/stm32-h103/button/Makefile new file mode 100644 index 0000000..96731c2 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/button/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = button + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/button/button.c b/examples/stm32/f1/stm32-h103/button/button.c new file mode 100644 index 0000000..2f3378c --- /dev/null +++ b/examples/stm32/f1/stm32-h103/button/button.c @@ -0,0 +1,79 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +u16 exti_line_state; + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void button_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Set GPIO0 (in GPIO port A) to 'input open-drain'. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO0); + +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + button_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO12); + + exti_line_state = GPIOA_IDR; + if ((exti_line_state & (1 << 0)) != 0) { + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/button/button.ld b/examples/stm32/f1/stm32-h103/button/button.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/button/button.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/exti_both/Makefile b/examples/stm32/f1/stm32-h103/exti_both/Makefile new file mode 100644 index 0000000..39e305b --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_both/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = exti_both + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/exti_both/exti_both.c b/examples/stm32/f1/stm32-h103/exti_both/exti_both.c new file mode 100644 index 0000000..7c6f9c7 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_both/exti_both.c @@ -0,0 +1,92 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +u16 exti_line_state; + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void exti_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable AFIO clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + /* Enable EXTI0 interrupt */ + nvic_enable_irq(NVIC_EXTI0_IRQ); + + /* Set GPIO0 (in GPIO port A) to 'input float'. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO0); + + /* configure EXTI subsystem */ + exti_select_source(EXTI0, GPIOA); + exti_set_trigger(EXTI0, EXTI_TRIGGER_BOTH); + exti_enable_request(EXTI0); +} + +void exti0_isr() +{ + exti_line_state = GPIOA_IDR; + + if ((exti_line_state & (1 << 0)) != 0) { + gpio_clear(GPIOC, GPIO12); + } else { + gpio_set(GPIOC, GPIO12); + } + + exti_reset_request(EXTI0); +} + +int main(void) +{ + + clock_setup(); + gpio_setup(); + exti_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + __asm("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/exti_both/exti_both.ld b/examples/stm32/f1/stm32-h103/exti_both/exti_both.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_both/exti_both.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/exti_rising_falling/Makefile b/examples/stm32/f1/stm32-h103/exti_rising_falling/Makefile new file mode 100644 index 0000000..fc603a6 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_rising_falling/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = exti_rising_falling + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.c b/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.c new file mode 100644 index 0000000..b3c47ee --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.c @@ -0,0 +1,98 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * 2010 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +#define FALLING 0 +#define RISING 1 + +u16 exti_direction = FALLING; + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void exti_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable AFIO clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + /* Enable EXTI0 interrupt */ + nvic_enable_irq(NVIC_EXTI0_IRQ); + + /* Set GPIO0 (in GPIO port A) to 'input open-drain'. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO0); + + /* configure EXTI subsystem */ + exti_select_source(EXTI0, GPIOA); + exti_direction = FALLING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_FALLING); + exti_enable_request(EXTI0); +} + +void exti0_isr() +{ + exti_reset_request(EXTI0); + + if (exti_direction == FALLING) { + gpio_set(GPIOC, GPIO12); + exti_direction = RISING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_RISING); + } else { + gpio_clear(GPIOC, GPIO12); + exti_direction = FALLING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_FALLING); + } +} + +int main(void) +{ + + clock_setup(); + gpio_setup(); + exti_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + __asm("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.ld b/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/exti_rising_falling/exti_rising_falling.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/fancyblink/Makefile b/examples/stm32/f1/stm32-h103/fancyblink/Makefile new file mode 100644 index 0000000..1baec4d --- /dev/null +++ b/examples/stm32/f1/stm32-h103/fancyblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = fancyblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/fancyblink/README b/examples/stm32/f1/stm32-h103/fancyblink/README new file mode 100644 index 0000000..bdb6ec8 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/fancyblink/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is small LED blinking example program using libopencm3. + +It's intended for the ST STM32-based Olimex STM32-H103 eval board (see +http://olimex.com/dev/stm32-h103.html for details). It should blink +the LED on the board. + diff --git a/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.c b/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.c new file mode 100644 index 0000000..1b2ad86 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.c @@ -0,0 +1,55 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO12); /* LED on/off */ + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.ld b/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/fancyblink/fancyblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/led_stripe/Makefile b/examples/stm32/f1/stm32-h103/led_stripe/Makefile new file mode 100644 index 0000000..60fd1ef --- /dev/null +++ b/examples/stm32/f1/stm32-h103/led_stripe/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = led_stripe + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/led_stripe/led_stripe.c b/examples/stm32/f1/stm32-h103/led_stripe/led_stripe.c new file mode 100644 index 0000000..1576866 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/led_stripe/led_stripe.c @@ -0,0 +1,234 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* + * This example is implementing the protocol of ZJ168 addressable led + * strips. These strips use the LPD6803 controller. You may be able to + * find the datasheet here: + * http://www.adafruit.com/datasheets/LPD6803.pdf + */ + +#include + +#include +#include + +#define SPI_BANK GPIOB +#define SCLK_PIN GPIO13 +#define MOSI_PIN GPIO15 + +#define SMALL_DELAY_VALUE 0 + +#define COLOR_COUNT 50 + +#define SCLK(VAL) \ + if (VAL) { \ + gpio_set(SPI_BANK, SCLK_PIN); \ + } else { \ + gpio_clear(SPI_BANK, SCLK_PIN); \ + } + +#define MOSI(VAL) \ + if (VAL) { \ + gpio_set(SPI_BANK, MOSI_PIN); \ + } else { \ + gpio_clear(SPI_BANK, MOSI_PIN); \ + } + +#define SMALL_DELAY() { \ + int j; \ + for (j = 0; j < SMALL_DELAY_VALUE; j++) \ + __asm__("nop"); \ + } + +struct color { + u8 r; + u8 g; + u8 b; +}; + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO13); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); +} + +void send_colors(struct color *colors, int count) { + int i, k; + + /* initialize spi pins */ + SCLK(0); + MOSI(0); + + /* start frame */ + for (i=0; i<32; i++) { + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + } + + /* color cell output */ + for (k = 0; k < count; k++) { + /* Start bit */ + MOSI(1); + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + + /* Blue */ + for (i=0; i<5; i++) { + MOSI(((colors[k].b & ((1 << 4) >> i)) != 0)); + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + } + /* Red */ + for (i=0; i<5; i++) { + MOSI(((colors[k].r & ((1 << 4) >> i)) != 0)); + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + } + /* Green */ + for (i=0; i<5; i++) { + MOSI(((colors[k].g & ((1 << 4) >> i)) != 0)); + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + } + } + + /* End frame */ + MOSI(0); + for (k=0; k < count; k++) { + SCLK(1); + SMALL_DELAY(); + SCLK(0); + SMALL_DELAY(); + } +} + +void reset_colors(struct color *colors, int count) { + int i; + + for (i=0; i + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/miniblink/Makefile b/examples/stm32/f1/stm32-h103/miniblink/Makefile new file mode 100644 index 0000000..24a478b --- /dev/null +++ b/examples/stm32/f1/stm32-h103/miniblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = miniblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/miniblink/README b/examples/stm32/f1/stm32-h103/miniblink/README new file mode 100644 index 0000000..0e046f2 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/miniblink/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is the smallest-possible example program using libopencm3. + +It's intended for the ST STM32-based Olimex STM32-H103 eval board (see +http://olimex.com/dev/stm32-h103.html for details). It should blink +the LED on the board. + diff --git a/examples/stm32/f1/stm32-h103/miniblink/miniblink.c b/examples/stm32/f1/stm32-h103/miniblink/miniblink.c new file mode 100644 index 0000000..b003f9a --- /dev/null +++ b/examples/stm32/f1/stm32-h103/miniblink/miniblink.c @@ -0,0 +1,71 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + /* Manually: */ + // RCC_APB2ENR |= RCC_APB2ENR_IOPCEN; + /* Using API functions: */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + /* Manually: */ + // GPIOC_CRH = (GPIO_CNF_OUTPUT_PUSHPULL << (((12 - 8) * 4) + 2)); + // GPIOC_CRH |= (GPIO_MODE_OUTPUT_2_MHZ << ((12 - 8) * 4)); + /* Using API functions: */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +int main(void) +{ + int i; + + gpio_setup(); + + /* Blink the LED (PC12) on the board. */ + while (1) { + /* Manually: */ + // GPIOC_BSRR = GPIO12; /* LED off */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + // GPIOC_BRR = GPIO12; /* LED on */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + + /* Using API functions gpio_set()/gpio_clear(): */ + // gpio_set(GPIOC, GPIO12); /* LED off */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + // gpio_clear(GPIOC, GPIO12); /* LED on */ + // for (i = 0; i < 800000; i++) /* Wait a bit. */ + // __asm__("nop"); + + /* Using API function gpio_toggle(): */ + gpio_toggle(GPIOC, GPIO12); /* LED on/off */ + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/miniblink/miniblink.ld b/examples/stm32/f1/stm32-h103/miniblink/miniblink.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/miniblink/miniblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/pwm_6step/Makefile b/examples/stm32/f1/stm32-h103/pwm_6step/Makefile new file mode 100644 index 0000000..2360082 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/pwm_6step/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = pwm_6step + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.c b/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.c new file mode 100644 index 0000000..9f9390a --- /dev/null +++ b/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.c @@ -0,0 +1,409 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +#define FALLING 0 +#define RISING 1 + +u16 exti_direction = FALLING; + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* + * Set GPIO12 (PORTC) (led) to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); + +} + +void exti_setup(void) +{ + /* Enable GPIOA clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + /* Enable AFIO clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + /* Enable EXTI0 interrupt */ + nvic_enable_irq(NVIC_EXTI0_IRQ); + + /* Set GPIO0 (in GPIO port A) to 'input open-drain'. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO0); + + /* configure EXTI subsystem */ + exti_select_source(EXTI0, GPIOA); + exti_direction = FALLING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_FALLING); + exti_enable_request(EXTI0); +} + +void exti0_isr() +{ + exti_reset_request(EXTI0); + + if (exti_direction == FALLING) { + //gpio_toggle(GPIOA, GPIO12); + exti_direction = RISING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_RISING); + } else { + //gpio_toggle(GPIOA, GPIO12); + timer_generate_event(TIM1, TIM_EGR_COMG); + exti_direction = FALLING; + exti_set_trigger(EXTI0, EXTI_TRIGGER_FALLING); + } +} + +void tim_setup(void) +{ + + /* Enable TIM1 clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_TIM1EN); + + /* Enable GPIOA, GPIOB and Alternate Function clocks. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, + RCC_APB2ENR_IOPAEN | + RCC_APB2ENR_IOPBEN | + RCC_APB2ENR_AFIOEN); + + /* + * Set TIM1 chanel output pins to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, + GPIO_TIM1_CH1 | + GPIO_TIM1_CH2 | + GPIO_TIM1_CH3); + + /* + * Set TIM1 complementary chanel output pins to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, + GPIO_TIM1_CH1N | + GPIO_TIM1_CH2N | + GPIO_TIM1_CH3N); + + /* Enable TIM1 commutation interrupt. */ + nvic_enable_irq(NVIC_TIM1_TRG_COM_IRQ); + + /* Reset TIM1 peripheral */ + timer_reset(TIM1); + + /* Timer global mode: + * - No divider + * - alignment edge + * - direction up + */ + timer_set_mode(TIM1, TIM_CR1_CKD_CK_INT, + TIM_CR1_CMS_EDGE, + TIM_CR1_DIR_UP); + + /* Reset prescaler value. */ + timer_set_prescaler(TIM1, 0); + + /* Reset repetition counter value. */ + timer_set_repetition_counter(TIM1, 0); + + /* Enable preload. */ + timer_enable_preload(TIM1); + + /* Continous mode. */ + timer_continuous_mode(TIM1); + + /* Period (32kHz) */ + timer_set_period(TIM1, 72000000 / 32000); + + /* Configure break and deadtime */ + timer_set_deadtime(TIM1, 10); + timer_set_enabled_off_state_in_idle_mode(TIM1); + timer_set_enabled_off_state_in_run_mode(TIM1); + timer_disable_break(TIM1); + timer_set_break_polarity_high(TIM1); + timer_disable_break_automatic_output(TIM1); + timer_set_break_lock(TIM1, TIM_BDTR_LOCK_OFF); + + /* -- OC1 and OC1N configuration -- */ + + /* Disable outputs. */ + timer_disable_oc_output(TIM1, TIM_OC1); + timer_disable_oc_output(TIM1, TIM_OC1N); + + /* Configure global mode of line 1. */ + timer_disable_oc_clear(TIM1, TIM_OC1); + timer_enable_oc_preload(TIM1, TIM_OC1); + timer_set_oc_slow_mode(TIM1, TIM_OC1); + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_PWM1); + + /* Configure OC1. */ + timer_set_oc_polarity_high(TIM1, TIM_OC1); + timer_set_oc_idle_state_set(TIM1, TIM_OC1); + + /* Configure OC1N. */ + timer_set_oc_polarity_high(TIM1, TIM_OC1N); + timer_set_oc_idle_state_set(TIM1, TIM_OC1N); + + /* Set the capture compare value for OC1. */ + timer_set_oc_value(TIM1, TIM_OC1, 100); + + /* Reenable outputs. */ + timer_enable_oc_output(TIM1, TIM_OC1); + timer_enable_oc_output(TIM1, TIM_OC1N); + + /* -- OC2 and OC2N configuration -- */ + + /* Disable outputs. */ + timer_disable_oc_output(TIM1, TIM_OC2); + timer_disable_oc_output(TIM1, TIM_OC2N); + + /* Configure global mode of line 2. */ + timer_disable_oc_clear(TIM1, TIM_OC2); + timer_enable_oc_preload(TIM1, TIM_OC2); + timer_set_oc_slow_mode(TIM1, TIM_OC2); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_PWM1); + + /* Configure OC2. */ + timer_set_oc_polarity_high(TIM1, TIM_OC2); + timer_set_oc_idle_state_set(TIM1, TIM_OC2); + + /* Configure OC2N. */ + timer_set_oc_polarity_high(TIM1, TIM_OC2N); + timer_set_oc_idle_state_set(TIM1, TIM_OC2N); + + /* Set the capture compare value for OC1. */ + timer_set_oc_value(TIM1, TIM_OC2, 100); + + /* Reenable outputs. */ + timer_enable_oc_output(TIM1, TIM_OC2); + timer_enable_oc_output(TIM1, TIM_OC2N); + + /* -- OC3 and OC3N configuration -- */ + + /* Disable outputs. */ + timer_disable_oc_output(TIM1, TIM_OC3); + timer_disable_oc_output(TIM1, TIM_OC3N); + + /* Configure global mode of line 3. */ + timer_disable_oc_clear(TIM1, TIM_OC3); + timer_enable_oc_preload(TIM1, TIM_OC3); + timer_set_oc_slow_mode(TIM1, TIM_OC3); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_PWM1); + + /* Configure OC3. */ + timer_set_oc_polarity_high(TIM1, TIM_OC3); + timer_set_oc_idle_state_set(TIM1, TIM_OC3); + + /* Configure OC3N. */ + timer_set_oc_polarity_high(TIM1, TIM_OC3N); + timer_set_oc_idle_state_set(TIM1, TIM_OC3N); + + /* Set the capture compare value for OC3. */ + timer_set_oc_value(TIM1, TIM_OC3, 100); + + /* Reenable outputs. */ + timer_enable_oc_output(TIM1, TIM_OC3); + timer_enable_oc_output(TIM1, TIM_OC3N); + + /* ---- */ + /* ARR reload enable */ + timer_enable_preload(TIM1); + + /* Enable preload of complementary channel configurations and update on COM event */ + timer_enable_preload_complementry_enable_bits(TIM1); + + /* Enable outputs in the break subsystem */ + timer_enable_break_main_output(TIM1); + + /* Counter enable */ + timer_enable_counter(TIM1); + + /* Enable commutation interrupt */ + timer_enable_irq(TIM1, TIM_DIER_COMIE); +} + +void tim1_trg_com_isr(void) +{ + static int step = 0; + + /* Clear the COM trigger interrupt flag. */ + timer_clear_flag(TIM1, TIM_SR_COMIF); + + /* A simplified and inefficient implementation of PWM On + * scheme. Look at the implementation in Open-BLDC on + * http://open-bldc.org for the proper implementation. This + * one only serves as an example. + * + * Table of the pwm scheme zone configurations when driving: + * @verbatim + * | 1| 2| 3| 4| 5| 6| + * -+--+--+--+--+--+--+ + * A|p+|++| |p-|--| | + * -+--+--+--+--+--+--+ + * B| |p-|--| |p+|++| + * -+--+--+--+--+--+--+ + * C|--| |p+|++| |p-| + * -+--+--+--+--+--+--+ + * | | | | | | '- 360 Deg + * | | | | | '---- 300 Deg + * | | | | '------- 240 Deg + * | | | '---------- 180 Deg + * | | '------------- 120 Deg + * | '---------------- 60 Deg + * '------------------- 0 Deg + * + * Legend: + * p+: PWM on the high side + * p-: PWM on the low side + * --: Low side on + * ++: High side on + * : Floating/NC + * @endverbatim + */ + switch (step) { + case 0: /* A PWM HIGH, B OFF, C LOW */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_PWM1); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_FROZEN); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_FORCE_LOW); + + timer_enable_oc_output(TIM1, TIM_OC1); + timer_disable_oc_output(TIM1, TIM_OC1N); + + timer_disable_oc_output(TIM1, TIM_OC2); + timer_disable_oc_output(TIM1, TIM_OC2N); + + timer_enable_oc_output(TIM1, TIM_OC3); + timer_enable_oc_output(TIM1, TIM_OC3N); + + step++; + break; + case 1: /* A HIGH, B PWM LOW, C OFF */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_FORCE_HIGH); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_PWM1); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_FROZEN); + + timer_enable_oc_output(TIM1, TIM_OC1); + timer_enable_oc_output(TIM1, TIM_OC1N); + + timer_disable_oc_output(TIM1, TIM_OC2); + timer_enable_oc_output(TIM1, TIM_OC2N); + + timer_disable_oc_output(TIM1, TIM_OC3); + timer_disable_oc_output(TIM1, TIM_OC3N); + + step++; + break; + case 2: /* A OFF, B LOW, C PWM HIGH */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_FROZEN); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_FORCE_LOW); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_PWM1); + + timer_disable_oc_output(TIM1, TIM_OC1); + timer_disable_oc_output(TIM1, TIM_OC1N); + + timer_enable_oc_output(TIM1, TIM_OC2); + timer_enable_oc_output(TIM1, TIM_OC2N); + + timer_enable_oc_output(TIM1, TIM_OC3); + timer_disable_oc_output(TIM1, TIM_OC3N); + + step++; + break; + case 3: /* A PWM LOW, B OFF, C HIGH */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_PWM1); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_FROZEN); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_FORCE_HIGH); + + timer_disable_oc_output(TIM1, TIM_OC1); + timer_enable_oc_output(TIM1, TIM_OC1N); + + timer_disable_oc_output(TIM1, TIM_OC2); + timer_disable_oc_output(TIM1, TIM_OC2N); + + timer_enable_oc_output(TIM1, TIM_OC3); + timer_enable_oc_output(TIM1, TIM_OC3N); + + step++; + break; + case 4: /* A LOW, B PWM HIGH, C OFF */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_FORCE_LOW); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_PWM1); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_FROZEN); + + timer_enable_oc_output(TIM1, TIM_OC1); + timer_enable_oc_output(TIM1, TIM_OC1N); + + timer_enable_oc_output(TIM1, TIM_OC2); + timer_disable_oc_output(TIM1, TIM_OC2N); + + timer_disable_oc_output(TIM1, TIM_OC3); + timer_disable_oc_output(TIM1, TIM_OC3N); + + step++; + break; + case 5: /* A OFF, B HIGH, C PWM LOW */ + timer_set_oc_mode(TIM1, TIM_OC1, TIM_OCM_FROZEN); + timer_set_oc_mode(TIM1, TIM_OC2, TIM_OCM_FORCE_HIGH); + timer_set_oc_mode(TIM1, TIM_OC3, TIM_OCM_PWM1); + + timer_disable_oc_output(TIM1, TIM_OC1); + timer_disable_oc_output(TIM1, TIM_OC1N); + + timer_enable_oc_output(TIM1, TIM_OC2); + timer_enable_oc_output(TIM1, TIM_OC2N); + + timer_disable_oc_output(TIM1, TIM_OC3); + timer_enable_oc_output(TIM1, TIM_OC3N); + + step=0; + break; + } + gpio_toggle(GPIOC, GPIO12); +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + tim_setup(); + exti_setup(); + + while (1) { + __asm("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.ld b/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/pwm_6step/pwm_6step.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/spi/Makefile b/examples/stm32/f1/stm32-h103/spi/Makefile new file mode 100644 index 0000000..7d3cb72 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/spi/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2010 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = spi + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/spi/README b/examples/stm32/f1/stm32-h103/spi/README new file mode 100644 index 0000000..d4714c2 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/spi/README @@ -0,0 +1,8 @@ +------------------------------------------------------------------------------- +README +------------------------------------------------------------------------------- + +This example program repeatedly sends characters on SPI1 on the ST STM32-based +Olimex STM32-H103 eval board (see http://olimex.com/dev/stm32-h103.html +for details). + diff --git a/examples/stm32/f1/stm32-h103/spi/spi.c b/examples/stm32/f1/stm32-h103/spi/spi.c new file mode 100644 index 0000000..89b8a68 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/spi/spi.c @@ -0,0 +1,50 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); +} + +void spi_setup(void) +{ + /* TODO */ +} + +void gpio_setup(void) +{ + /* TODO */ +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + spi_setup(); + + while (1) { + spi_write(SPI1, 0xaa); + spi_write(SPI1, 0x55); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/spi/spi.ld b/examples/stm32/f1/stm32-h103/spi/spi.ld new file mode 100644 index 0000000..e2fb5b6 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/spi/spi.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/timer/Makefile b/examples/stm32/f1/stm32-h103/timer/Makefile new file mode 100644 index 0000000..86aced4 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/timer/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = timer + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/timer/timer.c b/examples/stm32/f1/stm32-h103/timer/timer.c new file mode 100644 index 0000000..48cae12 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/timer/timer.c @@ -0,0 +1,183 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +u16 frequency_sequence[18] = { + 1000, + 500, + 1000, + 500, + 1000, + 500, + 2000, + 500, + 2000, + 500, + 2000, + 500, + 1000, + 500, + 1000, + 500, + 1000, + 5000 +}; + + +int frequency_sel = 0; + +u16 compare_time; +u16 new_time; +u16 frequency; +int debug = 0; + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + +} + +void gpio_setup(void) +{ + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* + * Set GPIO12 (PORTC) (led) to + * 'output alternate function push-pull'. + */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); + + gpio_set(GPIOC, GPIO12); + +} + +void tim_setup(void) +{ + + /* Enable TIM2 clock. */ + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM2EN); + + + /* Enable TIM2 interrupt. */ + nvic_enable_irq(NVIC_TIM2_IRQ); + + /* Reset TIM2 peripheral */ + timer_reset(TIM2); + + /* Timer global mode: + * - No divider + * - alignment edge + * - direction up + */ + timer_set_mode(TIM2, TIM_CR1_CKD_CK_INT, + TIM_CR1_CMS_EDGE, + TIM_CR1_DIR_UP); + + /* Reset prescaler value. */ + timer_set_prescaler(TIM2, 36000); + + /* Enable preload. */ + timer_disable_preload(TIM2); + + /* Continous mode. */ + timer_continuous_mode(TIM2); + + /* Period (36kHz) */ + timer_set_period(TIM2, 65535); + + /* Disable outputs. */ + timer_disable_oc_output(TIM2, TIM_OC1); + timer_disable_oc_output(TIM2, TIM_OC2); + timer_disable_oc_output(TIM2, TIM_OC3); + timer_disable_oc_output(TIM2, TIM_OC4); + + /* -- OC1 configuration -- */ + + /* Configure global mode of line 1. */ + timer_disable_oc_clear(TIM2, TIM_OC1); + timer_disable_oc_preload(TIM2, TIM_OC1); + timer_set_oc_slow_mode(TIM2, TIM_OC1); + timer_set_oc_mode(TIM2, TIM_OC1, TIM_OCM_FROZEN); + + /* Set the capture compare value for OC1. */ + timer_set_oc_value(TIM2, TIM_OC1, 1000); + + /* ---- */ + /* ARR reload enable */ + timer_disable_preload(TIM2); + + /* Counter enable */ + timer_enable_counter(TIM2); + + /* Enable commutation interrupt */ + timer_enable_irq(TIM2, TIM_DIER_CC1IE); +} + +void tim2_isr(void) +{ + + if (timer_get_flag(TIM2, TIM_SR_CC1IF)) { + + /* Clear compare interrupt flag. */ + timer_clear_flag(TIM2, TIM_SR_CC1IF); + + /* + * Get current timer value to calculate next + * compare register value + */ + compare_time = timer_get_counter(TIM2); + + /* + * Calculate and set the next compare value. + */ + frequency = frequency_sequence[frequency_sel++]; + new_time = compare_time + frequency; + + timer_set_oc_value(TIM2, TIM_OC1, + new_time); + if (frequency_sel == 18) { + frequency_sel = 0; + } + + /* Toggle led to indicate compare event */ + gpio_toggle(GPIOC, GPIO12); + + } +} + +int main(void) +{ + + clock_setup(); + gpio_setup(); + tim_setup(); + + while (1) { + __asm("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/timer/timer.ld b/examples/stm32/f1/stm32-h103/timer/timer.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/timer/timer.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/traceswo/Makefile b/examples/stm32/f1/stm32-h103/traceswo/Makefile new file mode 100644 index 0000000..37510d5 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/traceswo/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = traceswo + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/traceswo/README b/examples/stm32/f1/stm32-h103/traceswo/README new file mode 100644 index 0000000..34b5227 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/traceswo/README @@ -0,0 +1,11 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This experimental program sends some characters on the TRACESWO pin using +the Instrumentation Trace Macrocell (ITM) and Trace Port Interface +Unit (TPIU). + +The SWJ-DP port must be in SWD mode and not JTAG mode for the output +to be visible. + diff --git a/examples/stm32/f1/stm32-h103/traceswo/traceswo.c b/examples/stm32/f1/stm32-h103/traceswo/traceswo.c new file mode 100644 index 0000000..8881447 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/traceswo/traceswo.c @@ -0,0 +1,100 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +#include +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); +} + +void trace_setup(void) +{ + /* Enable trace subsystem (we'll use ITM and TPIU) */ + SCS_DEMCR |= SCS_DEMCR_TRCENA; + + /* Use Manchester code for asynchronous transmission */ + TPIU_SPPR = TPIU_SPPR_ASYNC_MANCHESTER; + TPIU_ACPR = 7; + + /* Data width is 1 byte */ + TPIU_CSPSR = TPIU_CSPSR_BYTE; + + /* Formatter and flush control */ + TPIU_FFCR &= ~TPIU_FFCR_ENFCONT; + + /* Enable TRACESWO pin for async mode */ + DBGMCU_CR = DBGMCU_CR_TRACE_IOEN | DBGMCU_CR_TRACE_MODE_ASYNC; + + /* Unlock access to ITM registers */ + /* FIXME: Magic numbers... Is this Cortex-M3 generic? */ + *((volatile uint32_t*)0xE0000FB0) = 0xC5ACCE55; + + /* Enable ITM with ID = 1 */ + ITM_TCR = (1 << 16) | ITM_TCR_ITMENA; + /* Enable stimulus port 1 */ + ITM_TER[0] = 1; + +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void trace_send_blocking(char c) +{ + while(!(ITM_STIM[0] & ITM_STIM_FIFOREADY)); + ITM_STIM[0] = c; +} + +int main(void) +{ + int i, j = 0, c = 0; + + clock_setup(); + gpio_setup(); + trace_setup(); + + /* Blink the LED (PC12) on the board with every transmitted byte. */ + while (1) { + gpio_toggle(GPIOC, GPIO12); /* LED on/off */ + trace_send_blocking(c + '0'); + c = (c == 9) ? 0 : c + 1; /* Increment c. */ + if ((j++ % 80) == 0) { /* Newline after line full. */ + trace_send_blocking('\r'); + trace_send_blocking('\n'); + } + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("NOP"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/traceswo/traceswo.ld b/examples/stm32/f1/stm32-h103/traceswo/traceswo.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/traceswo/traceswo.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usart/Makefile b/examples/stm32/f1/stm32-h103/usart/Makefile new file mode 100644 index 0000000..2c1e1b1 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usart/README b/examples/stm32/f1/stm32-h103/usart/README new file mode 100644 index 0000000..ecd7269 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart/README @@ -0,0 +1,13 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example program sends some characters on USART3 on the ST STM32-based +Olimex STM32-H103 eval board (see http://olimex.com/dev/stm32-h103.html +for details). + +The terminal settings for the receiving device/PC are 38400 8n1. + +The sending is done in a blocking way in the code, see the usart_irq example +for a more elaborate USART example. + diff --git a/examples/stm32/f1/stm32-h103/usart/usart.c b/examples/stm32/f1/stm32-h103/usart/usart.c new file mode 100644 index 0000000..a221acb --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart/usart.c @@ -0,0 +1,119 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port B (for GPIO_USART3_TX) and USART3. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN); + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN | RCC_APB1ENR_USART3EN); +} + +void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_TX. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 38400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); + + /* Setup GPIO pin GPIO_USART2_TX. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART2, 38400, rcc_ppre1_frequency); + usart_set_databits(USART2, 8); + usart_set_stopbits(USART2, USART_STOPBITS_1); + usart_set_mode(USART2, USART_MODE_TX); + usart_set_parity(USART2, USART_PARITY_NONE); + usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART2); + + /* Setup GPIO pin GPIO_USART3_TX/GPIO10 on GPIO port B for transmit. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART3_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART3, 38400, rcc_ppre1_frequency); + usart_set_databits(USART3, 8); + usart_set_stopbits(USART3, USART_STOPBITS_1); + usart_set_mode(USART3, USART_MODE_TX); + usart_set_parity(USART3, USART_PARITY_NONE); + usart_set_flow_control(USART3, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART3); +} + +void gpio_setup(void) +{ + /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +int main(void) +{ + int i, j = 0, c = 0; + + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Blink the LED (PC12) on the board with every transmitted byte. */ + while (1) { + gpio_toggle(GPIOC, GPIO12); /* LED on/off */ + usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */ + usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */ + usart_send_blocking(USART3, c + '0'); /* USART3: Send byte. */ + c = (c == 9) ? 0 : c + 1; /* Increment c. */ + if ((j++ % 80) == 0) { /* Newline after line full. */ + usart_send_blocking(USART1, '\r'); + usart_send_blocking(USART1, '\n'); + usart_send_blocking(USART2, '\r'); + usart_send_blocking(USART2, '\n'); + usart_send_blocking(USART3, '\r'); + usart_send_blocking(USART3, '\n'); + } + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("NOP"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/usart/usart.ld b/examples/stm32/f1/stm32-h103/usart/usart.ld new file mode 100644 index 0000000..3409b98 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart/usart.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usart_irq/Makefile b/examples/stm32/f1/stm32-h103/usart_irq/Makefile new file mode 100644 index 0000000..6ee93bd --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart_irq + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c new file mode 100644 index 0000000..a2d8eef --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c @@ -0,0 +1,119 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock (for LED GPIOs). */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | + RCC_APB2ENR_AFIOEN | + RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Enable the USART1 interrupt. */ + nvic_enable_irq(NVIC_USART1_IRQ); + + /* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 230400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + usart_set_mode(USART1, USART_MODE_TX_RX); + + /* Enable USART1 Receive interrupt. */ + USART_CR1(USART1) |= USART_CR1_RXNEIE; + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + gpio_set(GPIOC, GPIO12); + + /* Setup GPIO6 and 7 (in GPIO port A) for led use. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void usart1_isr(void) +{ + static u8 data = 'A'; + + /* Check if we were called because of RXNE. */ + if (((USART_CR1(USART1) & USART_CR1_RXNEIE) != 0) && + ((USART_SR(USART1) & USART_SR_RXNE) != 0)) { + + /* Indicate that we got data. */ + gpio_toggle(GPIOC, GPIO12); + + /* Retrieve the data from the peripheral. */ + data = usart_recv(USART1); + + /* Enable transmit interrupt so it sends back the data. */ + USART_CR1(USART1) |= USART_CR1_TXEIE; + } + + /* Check if we were called because of TXE. */ + if (((USART_CR1(USART1) & USART_CR1_TXEIE) != 0) && + ((USART_SR(USART1) & USART_SR_TXE) != 0)) { + + /* Indicate that we are sending out data. */ + //gpio_toggle(GPIOA, GPIO7); + + /* Put data into the transmit register. */ + usart_send(USART1, data); + + /* Disable the TXE interrupt as we don't need it anymore. */ + USART_CR1(USART1) &= ~USART_CR1_TXEIE; + } +} + +int main(void) +{ + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Wait forever and do nothing. */ + while (1) + __asm__("nop"); + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.ld b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usart_irq_printf/Makefile b/examples/stm32/f1/stm32-h103/usart_irq_printf/Makefile new file mode 100644 index 0000000..2917a7d --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq_printf/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart_irq_printf + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.c b/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.c new file mode 100644 index 0000000..deee527 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.c @@ -0,0 +1,272 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +#include +#include + +/****************************************************************************** + * Simple ringbuffer implementation from open-bldc's libgovernor that + * you can find at: + * https://github.com/open-bldc/open-bldc/tree/master/source/libgovernor + ******************************************************************************/ + +typedef s32 ring_size_t; + +struct ring { + u8 *data; + ring_size_t size; + u32 begin; + u32 end; +}; + +#define RING_SIZE(RING) ((RING)->size - 1) +#define RING_DATA(RING) (RING)->data +#define RING_EMPTY(RING) ((RING)->begin == (RING)->end) + +void ring_init(struct ring *ring, u8 * buf, ring_size_t size) +{ + ring->data = buf; + ring->size = size; + ring->begin = 0; + ring->end = 0; +} + +s32 ring_write_ch(struct ring *ring, u8 ch) +{ + if (((ring->end + 1) % ring->size) != ring->begin) { + ring->data[ring->end++] = ch; + ring->end %= ring->size; + return (u32) ch; + } + + return -1; +} + +s32 ring_write(struct ring * ring, u8 * data, ring_size_t size) +{ + s32 i; + + for (i = 0; i < size; i++) { + if (ring_write_ch(ring, data[i]) < 0) { + return -i; + } + } + + return i; +} + +s32 ring_read_ch(struct ring * ring, u8 * ch) +{ + s32 ret = -1; + + if (ring->begin != ring->end) { + ret = ring->data[ring->begin++]; + ring->begin %= ring->size; + if (ch) + *ch = ret; + } + + return ret; +} + +s32 ring_read(struct ring * ring, u8 * data, ring_size_t size) +{ + s32 i; + + for (i = 0; i < size; i++) { + if (ring_read_ch(ring, data + i) < 0) { + return i; + } + } + + return -i; +} + +/****************************************************************************** + * The example implementation + ******************************************************************************/ + +#define BUFFER_SIZE 1024 + +struct ring output_ring; +u8 output_ring_buffer[BUFFER_SIZE]; + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock (for LED GPIOs). */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | + RCC_APB2ENR_AFIOEN | + RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + + /* Initialize output ring buffer */ + ring_init(&output_ring, output_ring_buffer, BUFFER_SIZE); + + /* Enable the USART1 interrupt. */ + nvic_enable_irq(NVIC_USART1_IRQ); + + /* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */ + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 230400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + usart_set_mode(USART1, USART_MODE_TX_RX); + + /* Enable USART1 Receive interrupt. */ + USART_CR1(USART1) |= USART_CR1_RXNEIE; + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + gpio_set(GPIOC, GPIO12); + + /* Setup GPIO6 and 7 (in GPIO port A) for led use. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +void usart1_isr(void) +{ + /* Check if we were called because of RXNE. */ + if (((USART_CR1(USART1) & USART_CR1_RXNEIE) != 0) && + ((USART_SR(USART1) & USART_SR_RXNE) != 0)) { + + /* Indicate that we got data. */ + gpio_toggle(GPIOC, GPIO12); + + /* Retrieve the data from the peripheral. */ + ring_write_ch(&output_ring, usart_recv(USART1)); + + /* Enable transmit interrupt so it sends back the data. */ + USART_CR1(USART1) |= USART_CR1_TXEIE; + } + + /* Check if we were called because of TXE. */ + if (((USART_CR1(USART1) & USART_CR1_TXEIE) != 0) && + ((USART_SR(USART1) & USART_SR_TXE) != 0)) { + + s32 data; + + data = ring_read_ch(&output_ring, NULL); + + if (data == -1) { + /* Disable the TXE interrupt as we don't need it anymore. */ + USART_CR1(USART1) &= ~USART_CR1_TXEIE; + } else { + /* Put data into the transmit register. */ + usart_send(USART1, data); + } + } +} + +int _write (int file, char *ptr, int len) +{ + int ret; + + if (file == 1) { + ret = ring_write(&output_ring, (u8 *)ptr, len); + + if (ret < 0) ret = -ret; + + USART_CR1(USART1) |= USART_CR1_TXEIE; + + return ret; + } + + errno = EIO; + return -1; +} + +void systick_setup(void) { + + /* 72MHz / 8 => 9000000 counts per second */ + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + + /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ + systick_set_reload(9000); + + systick_interrupt_enable(); + + /* Start counting. */ + systick_counter_enable(); + +} + +void sys_tick_handler(void) +{ + static int counter = 0; + static float fcounter = 0.0; + static double dcounter = 0.0; + + static u32 temp32 = 0; + + temp32++; + + /* We call this handler every 1ms so we are sending hello world every 10ms / 100Hz. */ + if (temp32 == 10) { + printf("Hello World! %i %f %f\r\n", counter, fcounter, dcounter); + counter++; + fcounter+=0.01; + dcounter+=0.01; + + temp32 = 0; + } +} + +int main(void) +{ + + clock_setup(); + gpio_setup(); + usart_setup(); + systick_setup(); + + while (1) { + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.ld b/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_irq_printf/usart_irq_printf.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usart_printf/Makefile b/examples/stm32/f1/stm32-h103/usart_printf/Makefile new file mode 100644 index 0000000..fb26208 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_printf/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usart_printf + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.c b/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.c new file mode 100644 index 0000000..1eb067f --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.c @@ -0,0 +1,108 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann , + * 2011 Piotr Esden-Tempski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include + +#include +#include + +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOA clock (for LED GPIOs). */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | + RCC_APB2ENR_AFIOEN | + RCC_APB2ENR_USART1EN); +} + +void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 230400, rcc_ppre2_frequency); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + usart_set_mode(USART1, USART_MODE_TX); + + /* Finally enable the USART. */ + usart_enable(USART1); +} + +void gpio_setup(void) +{ + gpio_set(GPIOC, GPIO12); + + /* Setup GPIO6 and 7 (in GPIO port A) for led use. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); +} + +int _write (int file, char *ptr, int len) +{ + int i; + + if (file == 1) { + for (i = 0; i < len; i++){ + usart_send_blocking(USART1, ptr[i]); + } + + return i; + } + + errno = EIO; + return -1; +} + +int main(void) +{ + int counter = 0; + float fcounter = 0.0; + double dcounter = 0.0; + + clock_setup(); + gpio_setup(); + usart_setup(); + + /* + * Write Hello World an integer, float and double all over + * again while incrementing the numbers. + */ + while (1) { + gpio_toggle(GPIOC, GPIO12); + printf("Hello World! %i %f %f\r\n", counter, fcounter, dcounter); + counter++; + fcounter+=0.01; + dcounter+=0.01; + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.ld b/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.ld new file mode 100644 index 0000000..edb52c5 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usart_printf/usart_printf.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Open-BLDC (STM32F103CBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usb_cdcacm/Makefile b/examples/stm32/f1/stm32-h103/usb_cdcacm/Makefile new file mode 100644 index 0000000..38179e3 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_cdcacm/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = cdcacm + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usb_cdcacm/README b/examples/stm32/f1/stm32-h103/usb_cdcacm/README new file mode 100644 index 0000000..2f1ee4b --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_cdcacm/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB CDC-ACM device (aka Virtual Serial Port) +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c b/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c new file mode 100644 index 0000000..f9e2527 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c @@ -0,0 +1,246 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include + +static const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = USB_CLASS_CDC, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5740, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +/* This notification endpoint isn't implemented. According to CDC spec its + * optional, but its absence causes a NULL pointer dereference in Linux cdc_acm + * driver. */ +static const struct usb_endpoint_descriptor comm_endp[] = {{ + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x83, + .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT, + .wMaxPacketSize = 16, + .bInterval = 255, +}}; + +static const struct usb_endpoint_descriptor data_endp[] = {{ + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x01, + .bmAttributes = USB_ENDPOINT_ATTR_BULK, + .wMaxPacketSize = 64, + .bInterval = 1, +}, { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x82, + .bmAttributes = USB_ENDPOINT_ATTR_BULK, + .wMaxPacketSize = 64, + .bInterval = 1, +}}; + +static const struct { + struct usb_cdc_header_descriptor header; + struct usb_cdc_call_management_descriptor call_mgmt; + struct usb_cdc_acm_descriptor acm; + struct usb_cdc_union_descriptor cdc_union; +} __attribute__((packed)) cdcacm_functional_descriptors = { + .header = { + .bFunctionLength = sizeof(struct usb_cdc_header_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_HEADER, + .bcdCDC = 0x0110, + }, + .call_mgmt = { + .bFunctionLength = + sizeof(struct usb_cdc_call_management_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT, + .bmCapabilities = 0, + .bDataInterface = 1, + }, + .acm = { + .bFunctionLength = sizeof(struct usb_cdc_acm_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_ACM, + .bmCapabilities = 0, + }, + .cdc_union = { + .bFunctionLength = sizeof(struct usb_cdc_union_descriptor), + .bDescriptorType = CS_INTERFACE, + .bDescriptorSubtype = USB_CDC_TYPE_UNION, + .bControlInterface = 0, + .bSubordinateInterface0 = 1, + } +}; + +static const struct usb_interface_descriptor comm_iface[] = {{ + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_CDC, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, + .bInterfaceProtocol = USB_CDC_PROTOCOL_AT, + .iInterface = 0, + + .endpoint = comm_endp, + + .extra = &cdcacm_functional_descriptors, + .extralen = sizeof(cdcacm_functional_descriptors) +}}; + +static const struct usb_interface_descriptor data_iface[] = {{ + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_DATA, + .bInterfaceSubClass = 0, + .bInterfaceProtocol = 0, + .iInterface = 0, + + .endpoint = data_endp, +}}; + +static const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = comm_iface, +}, { + .num_altsetting = 1, + .altsetting = data_iface, +}}; + +static const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 2, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0x80, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "CDC-ACM Demo", + "DEMO" +}; + +static int cdcacm_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + (void)complete; + (void)buf; + + switch(req->bRequest) { + case USB_CDC_REQ_SET_CONTROL_LINE_STATE: { + /* This Linux cdc_acm driver requires this to be implemented + * even though it's optional in the CDC spec, and we don't + * advertise it in the ACM functional descriptor. */ + char buf[10]; + struct usb_cdc_notification *notif = (void*)buf; + + /* We echo signals back to host as notification */ + notif->bmRequestType = 0xA1; + notif->bNotification = USB_CDC_NOTIFY_SERIAL_STATE; + notif->wValue = 0; + notif->wIndex = 0; + notif->wLength = 2; + buf[8] = req->wValue & 3; + buf[9] = 0; + //usbd_ep_write_packet(0x83, buf, 10); + return 1; + } + case USB_CDC_REQ_SET_LINE_CODING: + if(*len < sizeof(struct usb_cdc_line_coding)) + return 0; + + return 1; + } + return 0; +} + +static void cdcacm_data_rx_cb(u8 ep) +{ + (void)ep; + + char buf[64]; + int len = usbd_ep_read_packet(0x01, buf, 64); + if(len) { + usbd_ep_write_packet(0x82, buf, len); + buf[len] = 0; + } +} + +static void cdcacm_set_config(u16 wValue) +{ + (void)wValue; + + usbd_ep_setup(0x01, USB_ENDPOINT_ATTR_BULK, 64, cdcacm_data_rx_cb); + usbd_ep_setup(0x82, USB_ENDPOINT_ATTR_BULK, 64, NULL); + usbd_ep_setup(0x83, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL); + + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + cdcacm_control_request); +} + +int main(void) +{ + int i; + + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + gpio_set(GPIOC, GPIO11); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO11); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_register_set_config_callback(cdcacm_set_config); + + for (i = 0; i < 0x800000; i++) + __asm__("nop"); + gpio_clear(GPIOC, GPIO11); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.ld b/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.ld new file mode 100644 index 0000000..d0df9e6 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usb_dfu/Makefile b/examples/stm32/f1/stm32-h103/usb_dfu/Makefile new file mode 100644 index 0000000..48e2d6b --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_dfu/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbdfu + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usb_dfu/README b/examples/stm32/f1/stm32-h103/usb_dfu/README new file mode 100644 index 0000000..9c0169a --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_dfu/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Device Firmware Upgrade (DFU) bootloader +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c b/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c new file mode 100644 index 0000000..4eac36d --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c @@ -0,0 +1,261 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +#define APP_ADDRESS 0x08002000 + +/* Commands sent with wBlockNum == 0 as per ST implementation. */ +#define CMD_SETADDR 0x21 +#define CMD_ERASE 0x41 + +/* We need a special large control buffer for this device: */ +u8 usbd_control_buffer[1024]; + +static enum dfu_state usbdfu_state = STATE_DFU_IDLE; + +static struct { + u8 buf[sizeof(usbd_control_buffer)]; + u16 len; + u32 addr; + u16 blocknum; +} prog; + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0xDF11, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, /* Device Firmware Upgrade */ + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 2, + + /* The ST Microelectronics DfuSe application needs this string. + * The format isn't documented... */ + .iInterface = 4, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &iface, +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "DFU Demo", + "DEMO", + /* This string is used by ST Microelectronics' DfuSe utility. */ + "@Internal Flash /0x08000000/8*001Ka,56*001Kg" +}; + +static u8 usbdfu_getstatus(u32 *bwPollTimeout) +{ + switch(usbdfu_state) { + case STATE_DFU_DNLOAD_SYNC: + usbdfu_state = STATE_DFU_DNBUSY; + *bwPollTimeout = 100; + return DFU_STATUS_OK; + case STATE_DFU_MANIFEST_SYNC: + /* Device will reset when read is complete. */ + usbdfu_state = STATE_DFU_MANIFEST; + return DFU_STATUS_OK; + default: + return DFU_STATUS_OK; + } +} + +static void usbdfu_getstatus_complete(struct usb_setup_data *req) +{ + int i; + (void)req; + + switch (usbdfu_state) { + case STATE_DFU_DNBUSY: + flash_unlock(); + if (prog.blocknum == 0) { + switch(prog.buf[0]) { + case CMD_ERASE: + flash_erase_page(*(u32 *)(prog.buf + 1)); + case CMD_SETADDR: + prog.addr = *(u32 *)(prog.buf + 1); + } + } else { + u32 baseaddr = prog.addr + ((prog.blocknum - 2) * + dfu_function.wTransferSize); + for (i = 0; i < prog.len; i += 2) + flash_program_half_word(baseaddr + i, + *(u16 *)(prog.buf + i)); + } + flash_lock(); + + /* Jump straight to dfuDNLOAD-IDLE, skipping dfuDNLOAD-SYNC. */ + usbdfu_state = STATE_DFU_DNLOAD_IDLE; + return; + case STATE_DFU_MANIFEST: + /* USB device must detach, we just reset... */ + scb_reset_system(); + return; /* Will never return. */ + default: + return; + } +} + +static int usbdfu_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + if ((req->bmRequestType & 0x7f) != 0x21) + return 0; /* Only accept class request. */ + + switch(req->bRequest) { + case DFU_DNLOAD: + if ((len == NULL) || (*len == 0)) { + usbdfu_state = STATE_DFU_MANIFEST_SYNC; + return 1; + } else { + /* Copy download data for use on GET_STATUS. */ + prog.blocknum = req->wValue; + prog.len = *len; + memcpy(prog.buf, *buf, *len); + usbdfu_state = STATE_DFU_DNLOAD_SYNC; + return 1; + } + case DFU_CLRSTATUS: + /* Clear error and return to dfuIDLE. */ + if(usbdfu_state == STATE_DFU_ERROR) + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_ABORT: + /* Abort returns to dfuIDLE state. */ + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_UPLOAD: + /* Upload not supported for now. */ + return 0; + case DFU_GETSTATUS: { + u32 bwPollTimeout = 0; /* 24-bit integer in DFU class spec */ + + (*buf)[0] = usbdfu_getstatus(&bwPollTimeout); + (*buf)[1] = bwPollTimeout & 0xFF; + (*buf)[2] = (bwPollTimeout >> 8) & 0xFF; + (*buf)[3] = (bwPollTimeout >> 16) & 0xFF; + (*buf)[4] = usbdfu_state; + (*buf)[5] = 0; /* iString not used here */ + *len = 6; + + *complete = usbdfu_getstatus_complete; + + return 1; + } + case DFU_GETSTATE: + /* Return state with no state transision. */ + *buf[0] = usbdfu_state; + *len = 1; + return 1; + } + + return 0; +} + +int main(void) +{ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + + if (!gpio_get(GPIOA, GPIO10)) { + /* Boot the application if it's valid. */ + if ((*(volatile u32*)APP_ADDRESS & 0x2FFE0000) == 0x20000000) { + /* Set vector table base address. */ + SCB_VTOR = APP_ADDRESS & 0xFFFF; + /* Initialise master stack pointer. */ + asm volatile ("msr msp, %0"::"g" + (*(volatile u32 *)APP_ADDRESS)); + /* Jump to application. */ + (*(void(**)())(APP_ADDRESS + 4))(); + } + } + + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO11); + gpio_set(GPIOC, GPIO11); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_set_control_buffer_size(sizeof(usbd_control_buffer)); + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + usbdfu_control_request); + + gpio_clear(GPIOC, GPIO11); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.ld b/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.ld new file mode 100644 index 0000000..6a01797 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.ld @@ -0,0 +1,29 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 8K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usb_hid/Makefile b/examples/stm32/f1/stm32-h103/usb_hid/Makefile new file mode 100644 index 0000000..d831e9e --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_hid/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbhid + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usb_hid/README b/examples/stm32/f1/stm32-h103/usb_hid/README new file mode 100644 index 0000000..48a9b39 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_hid/README @@ -0,0 +1,7 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB Human Interface Device (HID) +to demonstrate the use of the USB device stack. + diff --git a/examples/stm32/f1/stm32-h103/usb_hid/usbhid.c b/examples/stm32/f1/stm32-h103/usb_hid/usbhid.c new file mode 100644 index 0000000..a815573 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_hid/usbhid.c @@ -0,0 +1,272 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +/* Define this to include the DFU APP interface. */ +#define INCLUDE_DFU_INTERFACE + +#ifdef INCLUDE_DFU_INTERFACE +#include +#include +#endif + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0x5710, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +/* I have no idea what this means. I haven't read the HID spec. */ +static const u8 hid_report_descriptor[] = { + 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, + 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, + 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, + 0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, + 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x09, 0x38, + 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x03, + 0x81, 0x06, 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09, + 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, + 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1, + 0x01, 0xc0 +}; + +static const struct { + struct usb_hid_descriptor hid_descriptor; + struct { + u8 bReportDescriptorType; + u16 wDescriptorLength; + } __attribute__((packed)) hid_report; +} __attribute__((packed)) hid_function = { + .hid_descriptor = { + .bLength = sizeof(hid_function), + .bDescriptorType = USB_DT_HID, + .bcdHID = 0x0100, + .bCountryCode = 0, + .bNumDescriptors = 1, + }, + .hid_report = { + .bReportDescriptorType = USB_DT_REPORT, + .wDescriptorLength = sizeof(hid_report_descriptor), + } +}; + +const struct usb_endpoint_descriptor hid_endpoint = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = 0x81, + .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT, + .wMaxPacketSize = 4, + .bInterval = 0x20, +}; + +const struct usb_interface_descriptor hid_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_HID, + .bInterfaceSubClass = 1, /* boot */ + .bInterfaceProtocol = 2, /* mouse */ + .iInterface = 0, + + .endpoint = &hid_endpoint, + + .extra = &hid_function, + .extralen = sizeof(hid_function), +}; + +#ifdef INCLUDE_DFU_INTERFACE +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor dfu_iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 1, + .iInterface = 0, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; +#endif + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &hid_iface, +#ifdef INCLUDE_DFU_INTERFACE +}, { + .num_altsetting = 1, + .altsetting = &dfu_iface, +#endif +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, +#ifdef INCLUDE_DFU_INTERFACE + .bNumInterfaces = 2, +#else + .bNumInterfaces = 1, +#endif + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "HID Demo", + "DEMO", +}; + +static int hid_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)complete; + + if((req->bmRequestType != 0x81) || + (req->bRequest != USB_REQ_GET_DESCRIPTOR) || + (req->wValue != 0x2200)) + return 0; + + /* Handle the HID report descriptor */ + *buf = (u8*)hid_report_descriptor; + *len = sizeof(hid_report_descriptor); + + return 1; +} + +#ifdef INCLUDE_DFU_INTERFACE +static void dfu_detach_complete(struct usb_setup_data *req) +{ + (void)req; + + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO10); + gpio_set(GPIOA, GPIO10); + scb_reset_core(); +} + +static int dfu_control_request(struct usb_setup_data *req, u8 **buf, u16 *len, + void (**complete)(struct usb_setup_data *req)) +{ + (void)buf; + (void)len; + + if((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH)) + return 0; /* Only accept class request */ + + *complete = dfu_detach_complete; + + return 1; +} +#endif + +static void hid_set_config(u16 wValue) +{ + (void)wValue; + + usbd_ep_setup(0x81, USB_ENDPOINT_ATTR_INTERRUPT, 4, NULL); + + usbd_register_control_callback( + USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + hid_control_request); +#ifdef INCLUDE_DFU_INTERFACE + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + dfu_control_request); +#endif + + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_reload(100000); + systick_interrupt_enable(); + systick_counter_enable(); +} + +int main(void) +{ + rcc_clock_setup_in_hsi_out_48mhz(); + + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + gpio_set(GPIOC, GPIO11); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO11); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_register_set_config_callback(hid_set_config); + + {int i; for (i=0;i<0x80000;i++);} + gpio_clear(GPIOC, GPIO11); + + while (1) + usbd_poll(); +} + +void sys_tick_handler(void) +{ + static int x = 0; + static int dir = 1; + u8 buf[4] = {0, 0, 0, 0}; + + buf[1] = dir; + x += dir; + if(x > 30) dir = -dir; + if(x < -30) dir = -dir; + + usbd_ep_write_packet(0x81, buf, 4); +} diff --git a/examples/stm32/f1/stm32-h103/usb_hid/usbhid.ld b/examples/stm32/f1/stm32-h103/usb_hid/usbhid.ld new file mode 100644 index 0000000..d0df9e6 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_hid/usbhid.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h103/usb_iap/Makefile b/examples/stm32/f1/stm32-h103/usb_iap/Makefile new file mode 100644 index 0000000..bed9908 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_iap/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usbiap + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h103/usb_iap/README b/examples/stm32/f1/stm32-h103/usb_iap/README new file mode 100644 index 0000000..2966684 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_iap/README @@ -0,0 +1,8 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This example implements a USB bootloader for the Paparazzi project. + +TODO: Move to examples/lisa-m? + diff --git a/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c new file mode 100644 index 0000000..9d184f1 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c @@ -0,0 +1,270 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +#define APP_ADDRESS 0x08002000 + +/* Commands sent with wBlockNum == 0 as per ST implementation. */ +#define CMD_SETADDR 0x21 +#define CMD_ERASE 0x41 + +/* We need a special large control buffer for this device: */ +u8 usbd_control_buffer[1024]; + +static enum dfu_state usbdfu_state = STATE_DFU_IDLE; + +static struct { + u8 buf[sizeof(usbd_control_buffer)]; + u16 len; + u32 addr; + u16 blocknum; +} prog; + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0x0483, + .idProduct = 0xDF11, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +const struct usb_dfu_descriptor dfu_function = { + .bLength = sizeof(struct usb_dfu_descriptor), + .bDescriptorType = DFU_FUNCTIONAL, + .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH, + .wDetachTimeout = 255, + .wTransferSize = 1024, + .bcdDFUVersion = 0x011A, +}; + +const struct usb_interface_descriptor iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFE, /* Device Firmware Upgrade */ + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 2, + + /* The ST Microelectronics DfuSe application needs this string. + * The format isn't documented... */ + .iInterface = 4, + + .extra = &dfu_function, + .extralen = sizeof(dfu_function), +}; + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &iface, +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0xC0, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +static const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "DFU Demo", + "DEMO", + /* This string is used by ST Microelectronics' DfuSe utility */ + "@Internal Flash /0x08000000/8*001Ka,56*001Kg" +}; + +static u8 usbdfu_getstatus(u32 *bwPollTimeout) +{ + switch(usbdfu_state) { + case STATE_DFU_DNLOAD_SYNC: + usbdfu_state = STATE_DFU_DNBUSY; + *bwPollTimeout = 100; + return DFU_STATUS_OK; + + case STATE_DFU_MANIFEST_SYNC: + /* Device will reset when read is complete */ + usbdfu_state = STATE_DFU_MANIFEST; + return DFU_STATUS_OK; + + default: + return DFU_STATUS_OK; + } +} + +static void usbdfu_getstatus_complete(struct usb_setup_data *req) +{ + int i; + (void)req; + + switch(usbdfu_state) { + case STATE_DFU_DNBUSY: + + flash_unlock(); + if(prog.blocknum == 0) { + switch(prog.buf[0]) { + case CMD_ERASE: + flash_erase_page(*(u32*)(prog.buf+1)); + case CMD_SETADDR: + prog.addr = *(u32*)(prog.buf+1); + } + } else { + u32 baseaddr = prog.addr + + ((prog.blocknum - 2) * + dfu_function.wTransferSize); + for(i = 0; i < prog.len; i += 2) + flash_program_half_word(baseaddr + i, + *(u16*)(prog.buf+i)); + } + flash_lock(); + + /* We jump straight to dfuDNLOAD-IDLE, + * skipping dfuDNLOAD-SYNC + */ + usbdfu_state = STATE_DFU_DNLOAD_IDLE; + return; + + case STATE_DFU_MANIFEST: + /* USB device must detach, we just reset... */ + scb_reset_system(); + return; /* Will never return */ + default: + return; + } +} + +static int usbdfu_control_request(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + + if((req->bmRequestType & 0x7F) != 0x21) + return 0; /* Only accept class request */ + + switch(req->bRequest) { + case DFU_DNLOAD: + if((len == NULL) || (*len == 0)) { + usbdfu_state = STATE_DFU_MANIFEST_SYNC; + return 1; + } else { + /* Copy download data for use on GET_STATUS */ + prog.blocknum = req->wValue; + prog.len = *len; + memcpy(prog.buf, *buf, *len); + usbdfu_state = STATE_DFU_DNLOAD_SYNC; + return 1; + } + case DFU_CLRSTATUS: + /* Clear error and return to dfuIDLE */ + if(usbdfu_state == STATE_DFU_ERROR) + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_ABORT: + /* Abort returns to dfuIDLE state */ + usbdfu_state = STATE_DFU_IDLE; + return 1; + case DFU_UPLOAD: + /* Upload not supported for now */ + return 0; + case DFU_GETSTATUS: { + u32 bwPollTimeout = 0; /* 24-bit integer in DFU class spec */ + + (*buf)[0] = usbdfu_getstatus(&bwPollTimeout); + (*buf)[1] = bwPollTimeout & 0xFF; + (*buf)[2] = (bwPollTimeout >> 8) & 0xFF; + (*buf)[3] = (bwPollTimeout >> 16) & 0xFF; + (*buf)[4] = usbdfu_state; + (*buf)[5] = 0; /* iString not used here */ + *len = 6; + + *complete = usbdfu_getstatus_complete; + + return 1; + } + case DFU_GETSTATE: + /* Return state with no state transision */ + *buf[0] = usbdfu_state; + *len = 1; + return 1; + } + + return 0; +} + +int main(void) +{ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + if(!gpio_get(GPIOA, GPIO10)) { + /* Boot the application if it's valid */ + if((*(volatile u32*)APP_ADDRESS & 0x2FFE0000) == 0x20000000) { + /* Set vector table base address */ + SCB_VTOR = APP_ADDRESS & 0xFFFF; + /* Initialise master stack pointer */ + asm volatile ("msr msp, %0"::"g" + (*(volatile u32*)APP_ADDRESS)); + /* Jump to application */ + (*(void(**)())(APP_ADDRESS + 4))(); + } + } + + rcc_clock_setup_in_hsi_out_48mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON; + gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15); + + usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings); + usbd_set_control_buffer_size(sizeof(usbd_control_buffer)); + usbd_register_control_callback( + USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, + USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT, + usbdfu_control_request); + + gpio_set(GPIOA, GPIO15); + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); + + while (1) + usbd_poll(); +} diff --git a/examples/stm32/f1/stm32-h103/usb_iap/usbiap.ld b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.ld new file mode 100644 index 0000000..d0df9e6 --- /dev/null +++ b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h107/fancyblink/Makefile b/examples/stm32/f1/stm32-h107/fancyblink/Makefile new file mode 100644 index 0000000..1baec4d --- /dev/null +++ b/examples/stm32/f1/stm32-h107/fancyblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = fancyblink + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h107/fancyblink/README b/examples/stm32/f1/stm32-h107/fancyblink/README new file mode 100644 index 0000000..6f1ac39 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/fancyblink/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is small LED blinking example program using libopencm3. + +It's intended for the ST STM32-based Olimex STM32-H107 eval board (see +http://olimex.com/dev/stm32-h107.html for details). It should blink +the LED on the board. + diff --git a/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.c b/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.c new file mode 100644 index 0000000..4d45829 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.c @@ -0,0 +1,58 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * Copyright (c) 2011 Damjan Marion + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +/* Set STM32 to 72 MHz. */ +void clock_setup(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + /* Enable GPIOC clock. */ + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); +} + +void gpio_setup(void) +{ + /* Set GPIO6/7 (in GPIO port C) to 'output push-pull'. */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); +} + +int main(void) +{ + int i; + + clock_setup(); + gpio_setup(); + + /* Blink the LEDs (PC6 and PC7) on the board. */ + while (1) { + gpio_toggle(GPIOC, GPIO6); /* STAT1 LED on/off */ + gpio_toggle(GPIOC, GPIO7); /* STAT2 LED on/off */ + for (i = 0; i < 8000000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.ld b/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.ld new file mode 100644 index 0000000..d35c141 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/fancyblink/fancyblink.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H107 (STM32F107VCT6, 256K flash, 64K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + diff --git a/examples/stm32/f1/stm32-h107/usb_simple/Makefile b/examples/stm32/f1/stm32-h107/usb_simple/Makefile new file mode 100644 index 0000000..2d954e2 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/usb_simple/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This program is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program. If not, see . +## + +BINARY = usb_simple + +include ../../Makefile.include + diff --git a/examples/stm32/f1/stm32-h107/usb_simple/README b/examples/stm32/f1/stm32-h107/usb_simple/README new file mode 100644 index 0000000..93d4f03 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/usb_simple/README @@ -0,0 +1,10 @@ +------------------------------------------------------------------------------ +README +------------------------------------------------------------------------------ + +This is small USB controlled LED blinking example program using libopencm3. + +It's intended for the ST STM32-based Olimex STM32-H107 eval board (see +http://olimex.com/dev/stm32-h107.html for details). The usbtest.py +script in this directory maybe used to control the LED. + diff --git a/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.c b/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.c new file mode 100644 index 0000000..c30803c --- /dev/null +++ b/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.c @@ -0,0 +1,117 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Gareth McMullin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +#include + +const struct usb_device_descriptor dev = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0xFF, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + .bMaxPacketSize0 = 64, + .idVendor = 0xCAFE, + .idProduct = 0xCAFE, + .bcdDevice = 0x0200, + .iManufacturer = 1, + .iProduct = 2, + .iSerialNumber = 3, + .bNumConfigurations = 1, +}; + +const struct usb_interface_descriptor iface = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = 0xFF, + .bInterfaceSubClass = 0, + .bInterfaceProtocol = 0, + .iInterface = 0, +}; + +const struct usb_interface ifaces[] = {{ + .num_altsetting = 1, + .altsetting = &iface, +}}; + +const struct usb_config_descriptor config = { + .bLength = USB_DT_CONFIGURATION_SIZE, + .bDescriptorType = USB_DT_CONFIGURATION, + .wTotalLength = 0, + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = 0, + .bmAttributes = 0x80, + .bMaxPower = 0x32, + + .interface = ifaces, +}; + +const char *usb_strings[] = { + "x", + "Black Sphere Technologies", + "Simple Device", + "1001" +}; + +static int simple_control_callback(struct usb_setup_data *req, u8 **buf, + u16 *len, void (**complete)(struct usb_setup_data *req)) +{ + (void)buf; + (void)len; + (void)complete; + + if(req->bmRequestType != 0x40) + return 0; /* Only accept vendor request */ + + if(req->wValue & 1) + gpio_set(GPIOC, GPIO6); + else + gpio_clear(GPIOC, GPIO6); + + return 1; +} + +int main(void) +{ + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + + /* LED output */ + gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); + + usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings); + usbd_register_control_callback( + USB_REQ_TYPE_VENDOR, + USB_REQ_TYPE_TYPE, + simple_control_callback); + + while (1) + usbd_poll(); +} + diff --git a/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.ld b/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.ld new file mode 100644 index 0000000..d35c141 --- /dev/null +++ b/examples/stm32/f1/stm32-h107/usb_simple/usb_simple.ld @@ -0,0 +1,31 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* Linker script for Olimex STM32-H107 (STM32F107VCT6, 256K flash, 64K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K +} + +/* Include the common ld script. */ +INCLUDE libopencm3_stm32f1.ld + -- cgit v1.2.3