.include <m16def.inc>
.cseg
.org 0
init:
ldi r16,low(RAMEND)
ldi r17, high(RAMEND)
out spl, r16
out sph, r17
ldi r16, 0xff
out ddra, r16
clr r16
out porta, r16
ldi r16, (1<<pb3)
out ddrb, r16
ldi r16, 100
out ocr0, r16
ldi r16, (1<<WGM00) | (1<<COM01) | (1<<CS01)
out tccr0, r16
s:
; =============================
; delay loop generator
; 4000000 cycles:
; -----------------------------
; delaying 3999996 cycles:
ldi R17, $24
WGLOOP0: ldi R18, $BC
WGLOOP1: ldi R19, $C4
WGLOOP2: dec R19
brne WGLOOP2
dec R18
brne WGLOOP1
dec R17
brne WGLOOP0
; -----------------------------
; delaying 3 cycles:
ldi R17, $01
WGLOOP3: dec R17
brne WGLOOP3
; -----------------------------
; delaying 1 cycle:
nop
; =============================
cbi porta, 0
; =============================
; delay loop generator
; 4000000 cycles:
; -----------------------------
; delaying 3999996 cycles:
ldi R17, $24
xWGLOOP0: ldi R18, $BC
xWGLOOP1: ldi R19, $C4
xWGLOOP2: dec R19
brne xWGLOOP2
dec R18
brne xWGLOOP1
dec R17
brne xWGLOOP0
; -----------------------------
; delaying 3 cycles:
ldi R17, $01
xWGLOOP3: dec R17
brne xWGLOOP3
; -----------------------------
; delaying 1 cycle:
nop
; =============================
sbi porta, 0
rjmp s
Hier sollte gleichzeitig noch ne led blinken. das tut sie aber nicht