#include <avr/io.h>
void mysleep (long maxzaehler, long zaehler_ms, char pd)
{
    PORTD = pd;
    for ( zaehler_ms=0 ; zaehler_ms<=maxzaehler ; zaehler_ms++ )
    {
        asm volatile ( "nop":: );
    }
}
void blink (int multi, int zaehler_bli, long wartedauer)
{
    for ( zaehler_bli=0 ; zaehler_bli<=2 ; zaehler_bli++ )
    {
        mysleep(multi*73333, 0, 0b01000000);
        mysleep(73333, 0, 0b00000000);
    }
	mysleep(wartedauer, 0, 0b00000000);
}
void main ( void )
{
    DDRD  = 0b01000000;
	while ( 1 )
    {
        blink(1, 0, 220000);
        blink(3, 0, 220000);
        blink(1, 0, 330000); 
    }
}