TIMERS

        .org $00
        rjmp START
        .org OVF1addr       ;Timer 1
        rjmp BCD
        .org OVF0addr       ;Timer 0
        rjmp MUX



START:
        ldi     r16,HIGH(RAMEND)
        out     SPH,r16
        ldi     r16,LOW(RAMEND)
        out     SPL,r16

TIMER1:
        ldi     r16,(1<<CS10)|(0<<CS11)
        out     TCCR1B,r16

TIMER0:
        ldi     r16,(1<<CS00)|(1<<CS01)
        out     TCCR0,r16
        ldi     r16,(1<<TOIE0)|(1<<TOIE1)       ;FÖR BÅDE TIMER1 OCH TIMER0
        out     TIMSK,r16

RESET:
        clr     r16
        clr     r17
        clr     r18
        clr     r19
        sei                     ;ENABLE INTERUPTS

PORT:
        ldi     r16,$ff
        out     DDRA,r16
        ldi     r16,$ff
        out     DDRB,r16


DONE:
        rjmp    DONE

BCD:
        inc     r18
        out     PORTB,r18
        reti

MUX:
        inc     r19
        out     PORTA,r18
        reti




/*      BRA LÄNKAR
http://maxembedded.com/2011/06/avr-timers-timer1/
http://maxembedded.com/2011/06/avr-timers-timer0/
*/