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authorchrysn2012-04-19 17:28:55 +0200
committerchrysn2012-04-19 17:28:55 +0200
commit09fea0bc1bb9f38676375d4165676f8f35f5c66a (patch)
tree288ee822ed165049e13e0b6fd325e9bb3d16d85f /examples
parent705cdab7d702772829fd4cff37cf22bab9f59ddb (diff)
parent66c5f91a870105aa1f70388d834fffe1bac9947c (diff)
Merge branch 'master' into efm32
Conflicts: Makefile
Diffstat (limited to 'examples')
-rw-r--r--examples/lpc17xx/Makefile.include124
-rw-r--r--examples/lpc17xx/blueboard-lpc1768-h/blueboard-lpc1768-h.ld32
-rw-r--r--examples/lpc17xx/blueboard-lpc1768-h/miniblink/Makefile24
-rw-r--r--examples/lpc17xx/blueboard-lpc1768-h/miniblink/README9
-rw-r--r--examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c52
-rw-r--r--examples/stm32/f1/lisa-m-2/usart/Makefile25
-rw-r--r--examples/stm32/f1/lisa-m-2/usart/README12
-rw-r--r--examples/stm32/f1/lisa-m-2/usart/usart.c86
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_dma/Makefile25
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_dma/usart_dma.c199
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_irq/Makefile25
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_irq/usart_irq.c126
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_irq_printf/Makefile25
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_irq_printf/usart_irq_printf.c269
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_printf/Makefile25
-rw-r--r--examples/stm32/f1/lisa-m-2/usart_printf/usart_printf.c106
-rw-r--r--examples/stm32/f1/stm32-h103/usb_iap/usbiap.c2
-rw-r--r--examples/stm32/f2/jobygps/jobygps.ld6
18 files changed, 1168 insertions, 4 deletions
diff --git a/examples/lpc17xx/Makefile.include b/examples/lpc17xx/Makefile.include
new file mode 100644
index 0000000..8d6efe7
--- /dev/null
+++ b/examples/lpc17xx/Makefile.include
@@ -0,0 +1,124 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+PREFIX ?= arm-none-eabi
+#PREFIX ?= arm-elf
+CC = $(PREFIX)-gcc
+LD = $(PREFIX)-gcc
+OBJCOPY = $(PREFIX)-objcopy
+OBJDUMP = $(PREFIX)-objdump
+# Uncomment this line if you want to use the installed (not local) library.
+# TOOLCHAIN_DIR := $(shell dirname `which $(CC)`)/../$(PREFIX)
+TOOLCHAIN_DIR = ../../../..
+CFLAGS += -O0 -g -Wall -Wextra -I$(TOOLCHAIN_DIR)/include -fno-common \
+ -mcpu=cortex-m3 -mthumb -MD
+LDSCRIPT ?= $(BINARY).ld
+LDFLAGS += -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/lpc17xx \
+ -T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections
+OBJS += $(BINARY).o
+
+OOCD ?= openocd
+OOCD_INTERFACE ?= flossjtag
+OOCD_BOARD ?= olimex_stm32_h103
+# FIXME
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(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/lpc17xx/libopencm3_lpc17xx.a
+ @#printf " LD $(subst $(shell pwd)/,,$(@))\n"
+ $(Q)$(LD) $(LDFLAGS) -o $(*).elf $(OBJS) -lopencm3_lpc17xx
+
+%.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
+ $(Q)rm -f *.list
+
+# FIXME: Replace STM32 stuff with proper LPC13XX OpenOCD support later.
+ifeq ($(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
+
+.PHONY: images clean
+
+-include $(OBJS:.o=.d)
+
diff --git a/examples/lpc17xx/blueboard-lpc1768-h/blueboard-lpc1768-h.ld b/examples/lpc17xx/blueboard-lpc1768-h/blueboard-lpc1768-h.ld
new file mode 100644
index 0000000..e2e480f
--- /dev/null
+++ b/examples/lpc17xx/blueboard-lpc1768-h/blueboard-lpc1768-h.ld
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Linker script for Blueboard-LPC1768-H (LPC1768, 512K flash, 64K SRAM). */
+
+/* Define memory regions. */
+MEMORY
+{
+ rom (rx) : ORIGIN = 0x00000000, LENGTH = 512K
+ ram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
+ ram1 (rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
+ ram2 (rwx) : ORIGIN = 0x20080000, LENGTH = 16K
+}
+
+/* Include the common ld script. */
+INCLUDE libopencm3_lpc17xx.ld
diff --git a/examples/lpc17xx/blueboard-lpc1768-h/miniblink/Makefile b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/Makefile
new file mode 100644
index 0000000..2c8d016
--- /dev/null
+++ b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/Makefile
@@ -0,0 +1,24 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = miniblink
+
+LDSCRIPT = ../blueboard-lpc1768-h.ld
+
+include ../../Makefile.include
diff --git a/examples/lpc17xx/blueboard-lpc1768-h/miniblink/README b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/README
new file mode 100644
index 0000000..7354adf
--- /dev/null
+++ b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/README
@@ -0,0 +1,9 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This is the smallest-possible example program using libopencm3.
+
+It's intended for the NXP LPC1768-based NGX Blueboard-LPC1768-H eval board (see
+http://shop.ngxtechnologies.com/product_info.php?cPath=21&products_id=65). It should blink
+a LED on the board.
diff --git a/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c
new file mode 100644
index 0000000..33d413b
--- /dev/null
+++ b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/lpc17xx/gpio.h>
+
+void gpio_setup(void)
+{
+ GPIO1_DIR |= (1 << 29); /* Configure P1_29 as output. */
+}
+
+int main(void)
+{
+ int i;
+
+ gpio_setup();
+
+ /* Blink LED0 (P3_0) on the board. */
+ while (1) {
+ /* Manually: */
+ //GPIO1_SET = (1 << 29); /* LED on */
+ //for (i = 0; i < 800000; i++) /* Wait a bit. */
+ // __asm__("nop");
+ //GPIO1_CLR = (1 << 29); /* LED off */
+ //for (i = 0; i < 800000; i++) /* Wait a bit. */
+ // __asm__("nop");
+
+ gpio_set(GPIO1, GPIOPIN29); /* LED on */
+ for (i = 0; i < 800000; i++) /* Wait a bit. */
+ __asm__("nop");
+ gpio_clear(GPIO1, GPIOPIN29); /* LED off */
+ for (i = 0; i < 800000; i++) /* Wait a bit. */
+ __asm__("nop");
+ }
+
+ return 0;
+}
diff --git a/examples/stm32/f1/lisa-m-2/usart/Makefile b/examples/stm32/f1/lisa-m-2/usart/Makefile
new file mode 100644
index 0000000..4ba7e9e
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart
+
+LDSCRIPT = ../lisa-m.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f1/lisa-m-2/usart/README b/examples/stm32/f1/lisa-m-2/usart/README
new file mode 100644
index 0000000..5a3f316
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart/README
@@ -0,0 +1,12 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This example program sends some characters on USART2 on Lisa/M 2.0 board
+(see http://paparazzi.enac.fr/wiki/LisaM 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/lisa-m-2/usart/usart.c b/examples/stm32/f1/lisa-m-2/usart/usart.c
new file mode 100644
index 0000000..4422b55
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart/usart.c
@@ -0,0 +1,86 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/usart.h>
+
+void clock_setup(void)
+{
+ rcc_clock_setup_in_hse_12mhz_out_72mhz();
+
+ /* Enable GPIOA, GPIOB, 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_APB1ENR,
+ RCC_APB1ENR_USART2EN);
+}
+
+void usart_setup(void)
+{
+ /* 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);
+ 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);
+
+}
+
+void gpio_setup(void)
+{
+ /* Set GPIO8 (in GPIO port A) to 'output push-pull'. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
+}
+
+int main(void)
+{
+ int i, j = 0, c = 0;
+
+ clock_setup();
+ gpio_setup();
+ usart_setup();
+
+ /* Blink the LED (PA8) on the board with every transmitted byte. */
+ while (1) {
+ gpio_toggle(GPIOA, GPIO8); /* LED on/off */
+ usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */
+ c = (c == 9) ? 0 : c + 1; /* Increment c. */
+ if ((j++ % 80) == 0) { /* Newline after line full. */
+ usart_send_blocking(USART2, '\r');
+ usart_send_blocking(USART2, '\n');
+ }
+ for (i = 0; i < 800000; i++) /* Wait a bit. */
+ __asm__("nop");
+ }
+
+ return 0;
+}
diff --git a/examples/stm32/f1/lisa-m-2/usart_dma/Makefile b/examples/stm32/f1/lisa-m-2/usart_dma/Makefile
new file mode 100644
index 0000000..813cda9
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_dma/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart_dma
+
+LDSCRIPT = ../lisa-m.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f1/lisa-m-2/usart_dma/usart_dma.c b/examples/stm32/f1/lisa-m-2/usart_dma/usart_dma.c
new file mode 100644
index 0000000..ac3bb3c
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_dma/usart_dma.c
@@ -0,0 +1,199 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/f1/dma.h>
+#include <libopencm3/stm32/nvic.h>
+
+void clock_setup(void)
+{
+ rcc_clock_setup_in_hse_12mhz_out_72mhz();
+
+ /* Enable GPIOA, GPIOB, 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_APB1ENR,
+ RCC_APB1ENR_USART2EN);
+
+ /* Enable DMA1 clock */
+ rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_DMA1EN);
+}
+
+void usart_setup(void)
+{
+ /* Setup GPIO pin GPIO_USART2_TX and GPIO_USART2_RX. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
+ gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
+ GPIO_CNF_INPUT_FLOAT, GPIO_USART2_RX);
+
+ /* Setup UART parameters. */
+ usart_set_baudrate(USART2, 38400);
+ usart_set_databits(USART2, 8);
+ usart_set_stopbits(USART2, USART_STOPBITS_1);
+ usart_set_mode(USART2, USART_MODE_TX_RX);
+ usart_set_parity(USART2, USART_PARITY_NONE);
+ usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
+
+ /* Finally enable the USART. */
+ usart_enable(USART2);
+
+ nvic_set_priority(NVIC_DMA1_CHANNEL7_IRQ, 0);
+ nvic_enable_irq(NVIC_DMA1_CHANNEL7_IRQ);
+
+ nvic_set_priority(NVIC_DMA1_CHANNEL6_IRQ, 0);
+ nvic_enable_irq(NVIC_DMA1_CHANNEL6_IRQ);
+
+}
+
+void dma_write(char *data, int size)
+{
+ /*
+ * Using channel 7 for USART2_TX
+ */
+
+ /* Reset DMA channel*/
+ dma_channel_reset(DMA1, DMA_CHANNEL7);
+
+ dma_set_peripheral_address(DMA1, DMA_CHANNEL7, (u32)&USART2_DR);
+ dma_set_memory_address(DMA1, DMA_CHANNEL7, (u32)data);
+ dma_set_number_of_data(DMA1, DMA_CHANNEL7, size);
+ dma_set_read_from_memory(DMA1, DMA_CHANNEL7);
+ dma_enable_memory_increment_mode(DMA1, DMA_CHANNEL7);
+ dma_set_peripheral_size(DMA1, DMA_CHANNEL7, DMA_CCR_PSIZE_8BIT);
+ dma_set_memory_size(DMA1, DMA_CHANNEL7, DMA_CCR_MSIZE_8BIT);
+ dma_set_priority(DMA1, DMA_CHANNEL7, DMA_CCR_PL_VERY_HIGH);
+
+ dma_enable_transfer_complete_interrupt(DMA1, DMA_CHANNEL7);
+
+ dma_enable_channel(DMA1, DMA_CHANNEL7);
+
+ usart_enable_tx_dma(USART2);
+}
+
+volatile int transfered = 0;
+
+void dma1_channel7_isr(void)
+{
+ if ((DMA1_ISR &DMA_ISR_TCIF7) != 0) {
+ DMA1_IFCR |= DMA_IFCR_CTCIF7;
+
+ transfered = 1;
+ }
+
+ dma_disable_transfer_complete_interrupt(DMA1, DMA_CHANNEL7);
+
+ usart_disable_tx_dma(USART2);
+
+ dma_disable_channel(DMA1, DMA_CHANNEL7);
+}
+
+void dma_read(char *data, int size)
+{
+ /*
+ * Using channel 6 for USART2_RX
+ */
+
+ /* Reset DMA channel*/
+ dma_channel_reset(DMA1, DMA_CHANNEL6);
+
+ dma_set_peripheral_address(DMA1, DMA_CHANNEL6, (u32)&USART2_DR);
+ dma_set_memory_address(DMA1, DMA_CHANNEL6, (u32)data);
+ dma_set_number_of_data(DMA1, DMA_CHANNEL6, size);
+ dma_set_read_from_peripheral(DMA1, DMA_CHANNEL6);
+ dma_enable_memory_increment_mode(DMA1, DMA_CHANNEL6);
+ dma_set_peripheral_size(DMA1, DMA_CHANNEL6, DMA_CCR_PSIZE_8BIT);
+ dma_set_memory_size(DMA1, DMA_CHANNEL6, DMA_CCR_MSIZE_8BIT);
+ dma_set_priority(DMA1, DMA_CHANNEL6, DMA_CCR_PL_HIGH);
+
+ dma_enable_transfer_complete_interrupt(DMA1, DMA_CHANNEL6);
+
+ dma_enable_channel(DMA1, DMA_CHANNEL6);
+
+ usart_enable_rx_dma(USART2);
+}
+
+volatile int received = 0;
+
+void dma1_channel6_isr(void)
+{
+ if ((DMA1_ISR &DMA_ISR_TCIF6) != 0) {
+ DMA1_IFCR |= DMA_IFCR_CTCIF6;
+
+ received = 1;
+ }
+
+ dma_disable_transfer_complete_interrupt(DMA1, DMA_CHANNEL6);
+
+ usart_disable_rx_dma(USART2);
+
+ dma_disable_channel(DMA1, DMA_CHANNEL6);
+}
+
+void gpio_setup(void)
+{
+ /* Set GPIO8 (in GPIO port A) to 'output push-pull'. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
+}
+
+int main(void)
+{
+ char tx[10] = "abcdefg\r\n";
+ int tx_len = 10;
+ char rx[7] = "bcdefg";
+ int rx_len = 6;
+
+ clock_setup();
+ gpio_setup();
+ usart_setup();
+
+ transfered = 0;
+ dma_write(tx, tx_len);
+ received = 0;
+ dma_read(rx, rx_len);
+
+ /* Blink the LED (PA8) on the board with every transmitted byte. */
+ while (1) {
+ gpio_toggle(GPIOA, GPIO8); /* LED on/off */
+ while ( transfered != 1) {
+ if (received == 1) {
+ tx[1] = rx[0];
+ tx[2] = rx[1];
+ tx[3] = rx[2];
+ tx[4] = rx[3];
+ tx[5] = rx[4];
+ tx[6] = rx[5];
+ received = 0;
+ dma_read(rx, rx_len);
+ }
+ }
+ tx[0]++;
+ if (tx[0] > 'z') tx[0] = 'a';
+ transfered = 0;
+ dma_write(tx, tx_len);
+ }
+
+ return 0;
+}
diff --git a/examples/stm32/f1/lisa-m-2/usart_irq/Makefile b/examples/stm32/f1/lisa-m-2/usart_irq/Makefile
new file mode 100644
index 0000000..7baa2fe
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_irq/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart_irq
+
+LDSCRIPT = ../lisa-m.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f1/lisa-m-2/usart_irq/usart_irq.c b/examples/stm32/f1/lisa-m-2/usart_irq/usart_irq.c
new file mode 100644
index 0000000..dbe9140
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_irq/usart_irq.c
@@ -0,0 +1,126 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/nvic.h>
+
+void clock_setup(void)
+{
+ rcc_clock_setup_in_hse_12mhz_out_72mhz();
+
+ /* Enable GPIOA clock (for LED GPIOs). */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPCEN);
+
+ /* Enable clocks for GPIO port A (for GPIO_USART2_TX) and USART2. */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
+ RCC_APB2ENR_AFIOEN);
+
+ rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
+}
+
+void usart_setup(void)
+{
+ /* Enable the USART2 interrupt. */
+ nvic_enable_irq(NVIC_USART2_IRQ);
+
+ /* Setup GPIO pin GPIO_USART2_TX on GPIO port A for transmit. */
+ gpio_set_mode(GPIO_BANK_USART2_TX, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
+
+ /* Setup GPIO pin GPIO_USART2_RX on GPIO port A for receive. */
+ gpio_set_mode(GPIO_BANK_USART2_RX, GPIO_MODE_INPUT,
+ GPIO_CNF_INPUT_FLOAT, GPIO_USART2_RX);
+
+ /* Setup UART parameters. */
+ usart_set_baudrate(USART2, 230400);
+ usart_set_databits(USART2, 8);
+ usart_set_stopbits(USART2, USART_STOPBITS_1);
+ usart_set_parity(USART2, USART_PARITY_NONE);
+ usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
+ usart_set_mode(USART2, USART_MODE_TX_RX);
+
+ /* Enable USART2 Receive interrupt. */
+ USART_CR1(USART2) |= USART_CR1_RXNEIE;
+
+ /* Finally enable the USART. */
+ usart_enable(USART2);
+}
+
+void gpio_setup(void)
+{
+ gpio_set(GPIOA, GPIO8);
+
+ /* Setup GPIO8 (in GPIO port A) for LED use. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
+
+ gpio_set(GPIOC, GPIO15);
+
+ /* Setup GPIO15 (in GPIO port C) for LED use. */
+ gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO15);
+}
+
+void usart2_isr(void)
+{
+ static u8 data = 'A';
+
+ /* Check if we were called because of RXNE. */
+ if (((USART_CR1(USART2) & USART_CR1_RXNEIE) != 0) &&
+ ((USART_SR(USART2) & USART_SR_RXNE) != 0)) {
+
+ /* Indicate that we got data. */
+ gpio_toggle(GPIOA, GPIO8);
+
+ /* Retrieve the data from the peripheral. */
+ data = usart_recv(USART2);
+
+ /* Enable transmit interrupt so it sends back the data. */
+ USART_CR1(USART2) |= USART_CR1_TXEIE;
+ }
+
+ /* Check if we were called because of TXE. */
+ if (((USART_CR1(USART2) & USART_CR1_TXEIE) != 0) &&
+ ((USART_SR(USART2) & USART_SR_TXE) != 0)) {
+
+ /* Indicate that we are sending out data. */
+ gpio_toggle(GPIOC, GPIO15);
+
+ /* Put data into the transmit register. */
+ usart_send(USART2, data);
+
+ /* Disable the TXE interrupt as we don't need it anymore. */
+ USART_CR1(USART2) &= ~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/lisa-m-2/usart_irq_printf/Makefile b/examples/stm32/f1/lisa-m-2/usart_irq_printf/Makefile
new file mode 100644
index 0000000..0b6fd3e
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_irq_printf/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart_irq_printf
+
+LDSCRIPT = ../lisa-m.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f1/lisa-m-2/usart_irq_printf/usart_irq_printf.c b/examples/stm32/f1/lisa-m-2/usart_irq_printf/usart_irq_printf.c
new file mode 100644
index 0000000..6b1096e
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_irq_printf/usart_irq_printf.c
@@ -0,0 +1,269 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>,
+ * Copyright (C) 2011 Piotr Esden-Tempski <piotr@esden.net>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/nvic.h>
+#include <libopencm3/stm32/systick.h>
+#include <stdio.h>
+#include <errno.h>
+
+/******************************************************************************
+ * 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_12mhz_out_72mhz();
+
+ /* Enable GPIOA clock (for LED GPIOs). */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+
+ /* Enable clocks for GPIO port A (for GPIO_USART2_TX) and USART2. */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
+ RCC_APB2ENR_AFIOEN);
+ rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
+}
+
+void usart_setup(void)
+{
+ /* Initialize output ring buffer. */
+ ring_init(&output_ring, output_ring_buffer, BUFFER_SIZE);
+
+ /* Enable the USART2 interrupt. */
+ nvic_enable_irq(NVIC_USART2_IRQ);
+
+ /* Setup GPIO pin GPIO_USART2_TX on GPIO port A for transmit. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
+
+ /* Setup GPIO pin GPIO_USART2_RX on GPIO port A for receive. */
+ gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
+ GPIO_CNF_INPUT_FLOAT, GPIO_USART2_RX);
+
+ /* Setup UART parameters. */
+ usart_set_baudrate(USART2, 230400);
+ usart_set_databits(USART2, 8);
+ usart_set_stopbits(USART2, USART_STOPBITS_1);
+ usart_set_parity(USART2, USART_PARITY_NONE);
+ usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
+ usart_set_mode(USART2, USART_MODE_TX_RX);
+
+ /* Enable USART2 Receive interrupt. */
+ USART_CR1(USART2) |= USART_CR1_RXNEIE;
+
+ /* Finally enable the USART. */
+ usart_enable(USART2);
+}
+
+void gpio_setup(void)
+{
+ gpio_set(GPIOA, GPIO8);
+
+ /* Setup GPIO8 (in GPIO port A) for LED use. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
+}
+
+void usart2_isr(void)
+{
+ /* Check if we were called because of RXNE. */
+ if (((USART_CR1(USART2) & USART_CR1_RXNEIE) != 0) &&
+ ((USART_SR(USART2) & USART_SR_RXNE) != 0)) {
+
+ /* Indicate that we got data. */
+ gpio_toggle(GPIOA, GPIO8);
+
+ /* Retrieve the data from the peripheral. */
+ ring_write_ch(&output_ring, usart_recv(USART2));
+
+ /* Enable transmit interrupt so it sends back the data. */
+ USART_CR1(USART2) |= USART_CR1_TXEIE;
+ }
+
+ /* Check if we were called because of TXE. */
+ if (((USART_CR1(USART2) & USART_CR1_TXEIE) != 0) &&
+ ((USART_SR(USART2) & USART_SR_TXE) != 0)) {
+
+ s32 data;
+
+ data = ring_read_ch(&output_ring, NULL);
+
+ if (data == -1) {
+ /* Disable the TXE interrupt, it's no longer needed. */
+ USART_CR1(USART2) &= ~USART_CR1_TXEIE;
+ } else {
+ /* Put data into the transmit register. */
+ usart_send(USART2, 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(USART2) |= 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/lisa-m-2/usart_printf/Makefile b/examples/stm32/f1/lisa-m-2/usart_printf/Makefile
new file mode 100644
index 0000000..80ac033
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_printf/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library 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 Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart_printf
+
+LDSCRIPT = ../lisa-m.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f1/lisa-m-2/usart_printf/usart_printf.c b/examples/stm32/f1/lisa-m-2/usart_printf/usart_printf.c
new file mode 100644
index 0000000..a66bcbc
--- /dev/null
+++ b/examples/stm32/f1/lisa-m-2/usart_printf/usart_printf.c
@@ -0,0 +1,106 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>,
+ * Copyright (C) 2011-2012 Piotr Esden-Tempski <piotr@esden.net>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/nvic.h>
+#include <stdio.h>
+#include <errno.h>
+
+void clock_setup(void)
+{
+ rcc_clock_setup_in_hse_12mhz_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_USART2_TX) and USART2. */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
+ RCC_APB2ENR_AFIOEN);
+ rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
+}
+
+void usart_setup(void)
+{
+ /* Setup GPIO pin GPIO_USART2_RE_TX on GPIO port B for transmit. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
+
+ /* Setup UART parameters. */
+ usart_set_baudrate(USART2, 230400);
+ usart_set_databits(USART2, 8);
+ usart_set_stopbits(USART2, USART_STOPBITS_1);
+ usart_set_parity(USART2, USART_PARITY_NONE);
+ usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
+ usart_set_mode(USART2, USART_MODE_TX);
+
+ /* Finally enable the USART. */
+ usart_enable(USART2);
+}
+
+void gpio_setup(void)
+{
+ gpio_set(GPIOA, GPIO8);
+
+ /* Setup GPIO8 (in GPIO port A) for LED use. */
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
+}
+
+int _write(int file, char *ptr, int len)
+{
+ int i;
+
+ if (file == 1) {
+ for (i = 0; i < len; i++)
+ usart_send_blocking(USART2, 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(GPIOA, GPIO8);
+ 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/usb_iap/usbiap.c b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c
index 3cf7044..c5cc8ba 100644
--- a/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c
+++ b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c
@@ -149,7 +149,7 @@ static void usbdfu_getstatus_complete(struct usb_setup_data *req)
u32 baseaddr = prog.addr + ((prog.blocknum - 2) *
dfu_function.wTransferSize);
for (i = 0; i < prog.len; i += 2)
- flash_library_half_word(baseaddr + i,
+ flash_program_half_word(baseaddr + i,
*(u16 *)(prog.buf + i));
}
flash_lock();
diff --git a/examples/stm32/f2/jobygps/jobygps.ld b/examples/stm32/f2/jobygps/jobygps.ld
index d8271ff..73caf0e 100644
--- a/examples/stm32/f2/jobygps/jobygps.ld
+++ b/examples/stm32/f2/jobygps/jobygps.ld
@@ -4,16 +4,16 @@
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
*
* This library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser Lesser General Public License as published by
+ * it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser Lesser General Public License for more details.
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Lesser Lesser General Public License
+ * You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/