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MCU ?= attiny88
AVRDUDE_PROGRAMMER ?= usbasp
AVRCC ?= avr-gcc
AVRFLASH ?= avrdude
AVRNM ?= avr-nm
AVROBJCOPY ?= avr-objcopy
AVROBJDUMP ?= avr-objdump
CFLAGS += -mmcu=attiny88 -DF_CPU=8000000UL
# CFLAGS += -gdwarf-2
CFLAGS += -I. -std=gnu99 -Os -Wall -Wextra -pedantic
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -fwhole-program -flto -mstrict-X
AVRFLAGS += -U lfuse:w:0xee:m -U hfuse:w:0xdf:m -U efuse:w:0xff:m
AVRFLAGS += -U flash:w:main.hex
#AVRFLAGS += -U eeprom:w:main.eep
%.hex: %.elf
${AVROBJCOPY} -O ihex -R .eeprom $< $@
%.eep: %.elf
${AVROBJCOPY} -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O ihex $< $@
main.elf: main.c
${AVRCC} ${CFLAGS} -o $@ ${@:.elf=.c} -Wl,-Map=main.map,--cref
@echo
@avr-size --format=avr --mcu=${MCU} $@
program: main.hex #main.eep
${AVRFLASH} -p ${MCU} -c ${AVRDUDE_PROGRAMMER} ${AVRFLAGS}
secsize: main.elf
${AVROBJDUMP} -hw -j.text -j.bss -j.data main.elf
funsize: main.elf
${AVRNM} --print-size --size-sort main.elf
.PHONY: program secsize funsize
# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff \
clean clean_list program debug gdb-config
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