PROJECT=HelloWorld
MMCU=attiny44
F_CPU = 8000000
PROGRAMMER ?= usbtiny


SOURCES=$(PROJECT).c
CFLAGS=-mmcu=$(MMCU) -Wall -Os -DF_CPU=$(F_CPU)

$(PROJECT).hex: $(PROJECT).c
	avr-gcc $(CFLAGS) -I./ -o $(PROJECT).out $(SOURCES)
	avr-objcopy -O ihex $(PROJECT).out $(PROJECT).hex
	avr-size --mcu=$(MMCU) --format=avr $(PROJECT).out
	del $(PROJECT).out

upload: $(PROJECT).hex
	avrdude -p t44 -P usb -c $(PROGRAMMER) -U flash:w:$(PROJECT).hex

clean:
	del $(PROJECT).hex