From 2180a02e2f79b8ee77780ea11be188c0faaa8866 Mon Sep 17 00:00:00 2001 From: chrysn Date: Sat, 25 Feb 2012 18:57:11 +0100 Subject: first attempt at porting libopencm3 to energymicro unless sources are explicitly given, the linker scripts and make files were copied over from the stm32/f1 port. --- examples/efm32/tinygecko/Makefile.include | 96 ++++++++++++++++++++++ .../tinygecko/efm32-tg-stk3300/Makefile.include | 25 ++++++ examples/efm32/tinygecko/efm32-tg-stk3300/README | 9 ++ .../tinygecko/efm32-tg-stk3300/miniblink/Makefile | 23 ++++++ .../tinygecko/efm32-tg-stk3300/miniblink/README | 9 ++ .../efm32-tg-stk3300/miniblink/miniblink.c | 72 ++++++++++++++++ 6 files changed, 234 insertions(+) create mode 100644 examples/efm32/tinygecko/Makefile.include create mode 100644 examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include create mode 100644 examples/efm32/tinygecko/efm32-tg-stk3300/README create mode 100644 examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile create mode 100644 examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/README create mode 100644 examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/miniblink.c (limited to 'examples/efm32/tinygecko') diff --git a/examples/efm32/tinygecko/Makefile.include b/examples/efm32/tinygecko/Makefile.include new file mode 100644 index 0000000..1ee8d49 --- /dev/null +++ b/examples/efm32/tinygecko/Makefile.include @@ -0,0 +1,96 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## Copyright (C) 2010 Piotr Esden-Tempski +## Copyright (C) 2012 chrysn +## +## 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 ?= ${TOOLCHAIN_DIR}/lib/efm32/tinygecko/$(MCU).ld +LDFLAGS += -lc -lnosys -L$(TOOLCHAIN_DIR)/lib/efm32/tinygecko \ + -T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections \ + -mthumb -march=armv7 -mfix-cortex-m3-ldrd -msoft-float +OBJS += $(BINARY).o + +# Be silent per default, but 'make V=1' will show all compiler calls. +ifneq ($(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/efm32/tinygecko/libopencm3_efm32tinygecko.a + @#printf " LD $(subst $(shell pwd)/,,$(@))\n" + $(Q)$(LD) -o $(*).elf $(OBJS) -lopencm3_efm32tinygecko $(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 + +.PHONY: images clean + +-include $(OBJS:.o=.d) + diff --git a/examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include b/examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include new file mode 100644 index 0000000..e707b65 --- /dev/null +++ b/examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include @@ -0,0 +1,25 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2012 chrysn +## +## 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 . +## + +MCU = EFM32TG840F32 + +# Linker scripts are always relative to the current directory. This file is +# intended for inclusion from example subdirectories, so the Makefile.include +# meant here would be called ../Makefile.include relative to here. +include ../../Makefile.include diff --git a/examples/efm32/tinygecko/efm32-tg-stk3300/README b/examples/efm32/tinygecko/efm32-tg-stk3300/README new file mode 100644 index 0000000..ffa3b59 --- /dev/null +++ b/examples/efm32/tinygecko/efm32-tg-stk3300/README @@ -0,0 +1,9 @@ +========================= +EFM32-TG-STK3300 Examples +========================= + +Examples in this directory are designed to be run on the Energy Micro EFM32 +Tiny Gecko Starter Kit, which is based on the EFM32TG840F32 MCU, has an onboard +USB debug and power management interface, and a bunch of peripherials built in +that demonstrate the chip's low power capabilities (LED, LCD display, light +sensor, touch slider, LC sensor, push buttons). diff --git a/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile new file mode 100644 index 0000000..a2e44dc --- /dev/null +++ b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile @@ -0,0 +1,23 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## 2012 chrysn +## +## 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/efm32/tinygecko/efm32-tg-stk3300/miniblink/README b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/README new file mode 100644 index 0000000..d19e4fe --- /dev/null +++ b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/README @@ -0,0 +1,9 @@ +========================================== +EFM32-TG-STK3300 Examples miniblink README +========================================== + +This is the smallest-possible example program using libopencm3. + +It's intended for the EFM32-TG-STK3300 eval board. It should blink +the user LED on the board. + diff --git a/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/miniblink.c b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/miniblink.c new file mode 100644 index 0000000..e19ba8f --- /dev/null +++ b/examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/miniblink.c @@ -0,0 +1,72 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * 2012 chrysn + * + * 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 +// +//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; + for(;;); +} -- cgit v1.2.3