;
; ErsteAsmSchritte.asm
;
; Created: 19.10.2017 14:54:38
; Author : Jan
;
.def temp       = R16


.org 0x002E rjmp int0Ovfl

.ORG INT_VECTORS_SIZE       ; End of interrupt table

.equ LED_DDR    = DDRB
.equ LED_PORT   = PORTB

int0Ovfl:
    cbi LED_PORT,7
    reti

init:
    sbi LED_DDR,7 // set pin as out
    ret

initTim0:
    ldi temp, (1<<CS02) | (1<<CS01) // prescaler 1024 -> TCCR0B
    out TCCR0B,temp // write to TCCR0B
    ldi temp, (1<<TOIE0) // timer overflow enable -> TIMSK0
    sts TIMSK0,temp // write to TIMSK0
    sei // enable interrupts

    ret

; Replace with your application code
main:

    call init
    call initTim0

    rjmp main