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# Additional STM32F0 build rules
STLINK=st-flash
# Setup the toolchain
CROSS_PREFIX=arm-none-eabi-
dirs-y += src/stm32f0 src/generic
dirs-y += lib/cmsis-stm32f0/source
dirs-y += lib/hal-stm32f0/source
CFLAGS = -I$(OUT) -Isrc -I$(OUT)board-generic/ -std=gnu11 -O2 -MD \
-Wall -Wold-style-definition $(call cc-option,$(CC),-Wtype-limits,) \
-ffunction-sections -fdata-sections
CFLAGS += -flto -fno-use-linker-plugin
CFLAGS += -mthumb -mcpu=cortex-m0 -g3
CFLAGS += -Ilib/cmsis-core -Iout/board
CFLAGS += -Ilib/cmsis-stm32f0/include -Ilib/cmsis-stm32f0
CFLAGS += -Ilib/hal-stm32f0/include
CFLAGS += -DSTM32F042x6 -DUSE_HAL_DRIVER
# Add source files
src-y += stm32f0/main.c stm32f0/timer.c stm32f0/gpio.c
src-$(CONFIG_CANSERIAL) += stm32f0/can.c
src-$(CONFIG_DEBUG_OUT) += stm32f0/log.c
src-$(CONFIG_SERIAL) += stm32f0/serial.c
src-y += generic/serial_irq.c
src-$(CONFIG_HAVE_GPIO_ADC) += stm32f0/adc.c
src-y += $(addprefix ../, $(wildcard lib/hal-stm32f0/source/stm32f0xx_*.c))
src-y += generic/crc16_ccitt.c generic/armcm_irq.c
src-y += ../lib/cmsis-stm32f0/source/system_stm32f0xx.c
# Add assembler build rules
$(OUT)%.o: %.s $(OUT)autoconf.h $(OUT)board-link
@echo " Assembling $@"
$(Q)$(AS) $< -o $@
asmsrc-y = ../lib/cmsis-stm32f0/source/startup_stm32f042x6.s
OBJS_klipper.elf += $(patsubst %.s, $(OUT)src/%.o,$(asmsrc-y))
# Build the linker script
$(OUT)stm32f0.ld: src/stm32f0/stm32f0.ld $(OUT)board-link
@echo " Preprocessing $@"
$(Q)$(CPP) -P -MD -MT $@ -DFLASH_START=$(CONFIG_FLASH_START) $< -o $@
CFLAGS_klipper.elf += -T $(OUT)stm32f0.ld
CFLAGS_klipper.elf += --specs=nano.specs --specs=nosys.specs
$(OUT)klipper.elf : $(OUT)stm32f0.ld
# Binary output file rules
target-y += $(OUT)klipper.bin
$(OUT)klipper.bin: $(OUT)klipper.elf
@echo " Creating binary file $@"
$(Q)$(OBJCOPY) -O binary $< $@
$(OUT)klipper.hex: $(OUT)klipper.elf
@echo " Creating hex file $@"
$(Q)$(OBJCOPY) -O ihex $< $@
flash: $(OUT)klipper.hex
@echo " Flashing hex file $<"
$(Q)$(STLINK) --format ihex --reset write $<
debug: $(OUT)klipper.hex
@echo " Remote debug:"
openocd -f interface/stlink.cfg -f target/stm32f0x.cfg
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