#include <stdint.h>                                        // Dateitypen
#include <avr/io.h>                                        // In/Outputs
#include <avr/interrupt.h>                                // Interrupts - fuer sei()
#include <avr/signal.h>                                    // Interrupts - fuer signal()

unsigned char al, ah;
unsigned short aw;

int main (void)
{
    DDRD = 252;
    DDRB = 15;
    DDRC = 0;
    PORTC = 0;                

    sei();                                    // Global Interrupt Flag setzen

        ADMUX = 0;
        ADCSRA = 128 + 64 + 8 + 4 + 1;

    while(1)                                // Run forever
    {
//                PORTD = 128;
    }
    

}


SIGNAL(SIG_ADC)                   // Wenn ADC fertig ist
{
        al = ADCL;
        ah = ADCH;
        aw = (ah <<8) | al;
        PORTD = (aw >> 2)&252;
    PORTB = aw & 15;
        ADCSRA |= 64;
}

DDRD = 252;
    DDRB = 15;

ADMUX
        ADCSRA

aw = (ah <<8) | al;
        PORTD = (aw >> 2)&252;
    PORTB = aw & 15;
        ADCSRA |= 64;