MCU=atmega88
CFLAGS=-g -Wall -Wno-multichar -Wno-overflow -mcall-prologues -mmcu=$(MCU) -O2 -DF_CPU=8000000 -IAVR-SSD1306/Files/
LDFLAGS=-Wl,-gc-sections -Wl,-relax
CC=avr-gcc
TARGET=main
OBJECT_FILES=main.o input.o systick.o oled-display/font.o oled-display/i2c.o oled-display/lcd.o

all: $(TARGET).hex

clean:
	rm -f *.o *.hex *.obj *.hex

%.hex: %.obj
	avr-objcopy -R .eeprom -O ihex $< $@

%.obj: $(OBJECT_FILES)
	$(CC) $(CFLAGS) $(OBJECT_FILES) $(LDFLAGS) -o $@

program: $(TARGET).hex
	avrdude -p $(MCU) -c usbasp -U flash:w:$(TARGET).hex