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# put your *.o targets here, make should handle the rest!
CMSIS_PATH ?= STM32Cube/Drivers/CMSIS
CMSIS_DEV_PATH ?= $(CMSIS_PATH)/Device/ST/STM32F0xx
HAL_PATH ?= STM32Cube/Drivers/STM32F0xx_HAL_Driver
CC := arm-none-eabi-gcc
OBJCOPY := arm-none-eabi-objcopy
OBJDUMP := arm-none-eabi-objdump
SIZE := arm-none-eabi-size
CFLAGS = -Wall -g -std=gnu11 -Os
CFLAGS += -mlittle-endian -mcpu=cortex-m0 -march=armv6-m -mthumb
#CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections
CFLAGS += -Wl,-Map=main.map
# Technically we're using an STM32F030F4, but apart from the TSSOP20 package that one is largely identical to the
# STM32F030*6 and there is no separate device header provided for it, so we're faking a *6 device here. This is
# even documented in stm32f0xx.h. Thanks ST!
CFLAGS += -DSTM32F030x6 -DHSE_VALUE=25000000
CFLAGS += -Tstm32_flash.ld
CFLAGS += -I$(CMSIS_DEV_PATH)/Include -I$(CMSIS_PATH)/Include -I$(HAL_PATH)/Inc -Iconfig
CFLAGS += -L$(CMSIS_PATH)/Lib/GCC -larm_cortexM0l_math
###################################################
.PHONY: program clean
all: main.elf
cmsis_exports.c: $(CMSIS_DEV_PATH)/Include/stm32f030x6.h $(CMSIS_PATH)/Include/core_cm0.h
python3 gen_cmsis_exports.py $^ > $@
sources.tar.xz: main.c Makefile
tar -cf $@ $^
# don't ask...
sources.tar.xz.zip: sources.tar.xz
zip $@ $^
sources.c: sources.tar.xz.zip
xxd -i $< | head -n -1 | sed 's/=/__attribute__((section(".source_tarball"))) =/' > $@
main.elf: main.c startup_stm32f030x6.s system_stm32f0xx.c $(HAL_PATH)/Src/stm32f0xx_ll_utils.c cmsis_exports.c sources.o
$(CC) $(CFLAGS) -o $@ $^
$(OBJCOPY) -O ihex $@ $(@:.elf=.hex)
$(OBJCOPY) -O binary $@ $(@:.elf=.bin)
$(OBJDUMP) -St $@ >$(@:.elf=.lst)
$(SIZE) $@
program: main.elf openocd.cfg
openocd -f openocd.cfg -c "program $< verify reset exit"
clean:
rm -f *.o
rm -f main.elf main.hex main.bin main.map main.lst
rm -f sources.tar.xz sources.tar.xz.zip
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