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-rw-r--r--firmware/Makefile61
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diff --git a/firmware/Makefile b/firmware/Makefile
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+# put your *.o targets here, make should handle the rest!
+CMSIS_PATH ?= STM32Cube/Drivers/CMSIS
+CMSIS_DEV_PATH ?= $(CMSIS_PATH)/Device/ST/STM32F0xx
+HAL_PATH ?= STM32Cube/Drivers/STM32F0xx_HAL_Driver
+
+MAC_ADDR ?= 0xDEBE10BB
+
+CC := arm-none-eabi-gcc
+OBJCOPY := arm-none-eabi-objcopy
+OBJDUMP := arm-none-eabi-objdump
+SIZE := arm-none-eabi-size
+
+#CFLAGS = -Wall -Wpedantic -Wstrict-aliasing -g -std=gnu11 -Os
+CFLAGS = -Wall -Wpedantic -Wstrict-aliasing -g -std=gnu11 -O1
+CFLAGS += -mlittle-endian -mcpu=cortex-m0 -march=armv6-m -mthumb
+CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections
+CFLAGS += -Wl,-Map=main.map
+
+# Technically we're using an STM32F030F4, but apart from the TSSOP20 package that one is largely identical to the
+# STM32F030*6 and there is no separate device header provided for it, so we're faking a *6 device here. This is
+# even documented in stm32f0xx.h. Thanks ST!
+CFLAGS += -DSTM32F030x6 -DHSE_VALUE=25000000 -DMAC_ADDR=$(MAC_ADDR)
+
+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 serial.h global.h serial.c adc.h adc.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 adc.c serial.c startup_stm32f030x6.s system_stm32f0xx.c $(HAL_PATH)/Src/stm32f0xx_ll_utils.c cmsis_exports.c sources.c
+ $(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
+