diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..c31d4ec --- /dev/null +++ b/Makefile @@ -0,0 +1,47 @@ +MCU ?= attiny2313 +AVRDUDE_PROGRAMMER ?= usbasp + +AVRCC ?= avr-gcc +AVRFLASH ?= avrdude +AVRNM ?= avr-nm +AVROBJCOPY ?= avr-objcopy +AVROBJDUMP ?= avr-objdump + +CFLAGS += -mmcu=attiny2313 -DF_CPU=20000000UL +#CFLAGS += -gdwarf-2 -fverbose-asm -save-temps +CFLAGS += -I. -std=gnu99 -Os -Wall -Wextra -pedantic +CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums +# r28 .. r31 hold the microsecond counters +CFLAGS += -ffixed-28 -ffixed-29 -ffixed-30 -ffixed-31 +CFLAGS += -fwhole-program -flto -mstrict-X + +AVRFLAGS += -U lfuse:w:0xe4: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 + avr-size -d $@ + +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 |