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.PHONY: flash love
TARGETS=door lightctrl
CFLAGS_OPT=-Os \
-fpredictive-commoning -fmerge-all-constants -fmodulo-sched -fmodulo-sched-allow-regmoves \
-fgcse-sm -fgcse-las -fgcse-after-reload -fconserve-stack \
-fwhole-program
CFLAGS_WARN=-std=gnu99 -Wall -Wextra -Wno-unused -pedantic
CFLAGS_LD=-Wl,-T,avr4-signature.x
CFLAGS=${CFLAGS_WARN} ${CFLAGS_OPT} ${CFLAGS_LD}
MCU_door=48
MCU_lightctrl=88
AVRDUDE=avrdude
love: $(foreach target,$(TARGETS),$(target).elf)
avr-size $^
ifdef TARGET
flash: ${TARGET}.flash
$(AVRDUDE) -p m$(MCU_$(basename $<)) -c stk500v2 -P avrdoper -y \
-U eeprom:r:eeprom:r
$(AVRDUDE) -p m$(MCU_$(basename $<)) -c stk500v2 -P avrdoper -y \
-U flash:w:$< \
-U eeprom:w:eeprom:r
else
flash:
@echo the flash target is available only with TARGET set to something. use e.g. \"make flash TARGET=door\" >&2
@false
endif
%.flash: %.elf Makefile
avr-objcopy -j .text -j .data -O ihex $< $@
%.elf: %.c *.c *.x Makefile
avr-gcc -mmcu=atmega$(MCU_$(basename $@)) ${CFLAGS} -o $@ $<
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