PROJECT=hello.serial.45
SOURCES=$(PROJECT).c
CC=avr-gcc
OBJCOPY=avr-objcopy
MMCU=attiny45
F_CPU = 1000000

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

$(PROJECT).hex: $(PROJECT).out
	$(OBJCOPY) -j .text -O ihex $(PROJECT).out $(PROJECT).hex
 
$(PROJECT).out: $(SOURCES)
	$(CC) $(CFLAGS) -I./ -o $(PROJECT).out $(SOURCES)
 
program: $(PROJECT).hex
	avrdude -p t45 -c bsd -U flash:w:$(PROJECT).hex