Some old AVR projects
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PRG = main
MCU_TARGET = attiny2313
OPTIMIZE = 2
LFUSE = 0xE4
HFUSE = 0xDF
DEFS =-std=gnu99 -funsigned-char -funsigned-bitfields -ffunction-sections -fpack-struct -fshort-enums -ffreestanding --combine -fwhole-program -fno-inline-small-functions -fno-split-wide-types -fno-tree-scev-cprop -Wl,--relax,--gc-sections
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
OBJ = $(PRG).o
override CFLAGS = -g2 -Wall -O$(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
# program: $(PRG).elf lst hex
#
all: $(PRG).elf lst eeprom
$(PRG).elf: $(OBJ)
$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
avr-size -C -d --mcu=$(MCU_TARGET) $(PRG).elf
lst: $(PRG).lst
%.lst: %.elf
$(OBJDUMP) -h -S $< > $@
hex: $(PRG).hex lst
%.hex: %.elf
$(OBJCOPY) -j .text -j .data -O ihex $< $@
install: wflash wfuses
install_ee: weeprom
install_fl: wflash
install_fu: wfuses
wflash: $(PRG).hex
avrdude -P usb -c dragon_isp -p $(MCU_TARGET) -B 16 -U flash:w:$(PRG).hex
wfuses:
avrdude -P usb -c dragon_isp -p $(MCU_TARGET) -B 16 -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m
weeprom: ehex
avrdude -P usb -c dragon_isp -p $(MCU_TARGET) -B 16 -U lfuse:w:$(LFUSE):m -U eeprom:w:$(PRG)_eeprom.hex
ee: ehex
eeprom: ehex
ehex: $(PRG)_eeprom.hex
%_eeprom.hex: %.elf
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
clean:
rm -f *.o $(PRG).elf *.hex *.lst *~
term:
avrdude -P usb -c dragon_isp -p $(MCU_TARGET) -B 16 -t