MCU = atmega128rfa1
F_CPU = 16000000UL
CC = avr-gcc
OBJCOPY = avr-objcopy
CFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU) -Os -Wall -Wextra -std=gnu11
LDFLAGS = -mmcu=$(MCU)

TARGET = srxe_snek

SRCS = main.c srxe_keyboard.c snek.c uart.c

OBJS = $(SRCS:.c=.o)

all: $(TARGET).hex

%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

$(TARGET).elf: $(OBJS)
	$(CC) $(LDFLAGS) $^ -o $@

$(TARGET).hex: $(TARGET).elf
	$(OBJCOPY) -O ihex -R .eeprom $< $@

clean:
	rm -f $(OBJS) $(TARGET).elf $(TARGET).hex

flash: $(TARGET).hex
	avrdude -c your_programmer -p $(MCU) -U flash:w:$(TARGET).hex:i

.PHONY: all clean flash