/* 
 * File: blink.c
 * Description: Toggels pin PB0 every 500ms
 * From: C-Programmierung mit AVR-GCC
 */

#define F_CPU 16000000UL

#include <avr/io.h>
#include <util/delay.h>

int main(void)
{

  DDRB |= (1 << PB0) | (1 << PB1);
  PORTB |= (1 << PB0) | (1 << PB1);

  while (1)
  {
    PORTB ^= (1 << PB0) | (1 << PB1);
    _delay_ms(500);
  }

  return 0;
}