PROJECT=serial_bus
SOURCES=$(PROJECT).c
ATTINY=44
MMCU=attiny$(ATTINY)
F_CPU = 20000000
avrdude = C:/Program\ Files/avrdude/avrdude.exe

CFLAGS=-mmcu=$(MMCU) -Wall -Os -DF_CPU=$(F_CPU)

all: $(PROJECT).hex

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

program: $(PROJECT).hex
	$(avrdude) -p t$(ATTINY) -P usb -c usbtiny -U flash:w:$(PROJECT).c.hex

fuses: $(PROJECT).hex
	$(avrdude) -p t$(ATTINY) -P usb -c usbtiny -U lfuse:w:0x5E:m

clean: 
	rm $(PROJECT).c.hex $(PROJECT).out