#define F_CPU 1000000L
#include <avr/io.h>
#include "util.h"

int main(void) {
    disable_jtag();
    DDRD |= _BV(PD7);
    DDRF |= _BV(PF4);

    for (;;) {
	PORTF |= _BV(PF4);
	PORTD |= _BV(PD7);
	delay_ms(2000);

	PORTF &= ~_BV(PF4);
	PORTD &= ~_BV(PD7);
	delay_ms(2000);
    }
}