.include "m8def.inc" ldi r16, 0xff out DDRB, r16 ldi r16, 0b01010101 out PORTB, r16 end: rjmp endZweites Programm
.include "m8def.inc" ldi r16, HIGH (RAMEND) out SPH, r16 ldi r16, LOW (RAMEND) out SPL, r16 ldi r16, 0xff out DDRB, r16 ldi r16, 0x00 loop1: com r16 out PORTB, r16 com r16 rcall sleep inc r16 rjmp loop1 end: rjmp end sleep: push r16 push r17 ldi r16, 0xff sleep_loop1: ldi r17, 0xff sleep_loop2: dec r17 brne sleep_loop2 dec r16 brne sleep_loop1 pop r17 pop r16 retDrittes Programm:
.include "m8def.inc" .org 0x000 rjmp RESTART ;; addresse der externen Interrupts .org INT0addr rjmp ExtInt01 .org INT1addr rjmp ExtInt02 RESTART: ldi r16, HIGH (RAMEND) out SPH, r16 ldi r16, LOW (RAMEND) out SPL, r16 ldi r16, 0xff out DDRB, r16 ldi r16, 0x00 out DDRD, r16 ;; bits setzen - interrupts - fuer extern ein, Flanke, ... ldi r16, (1 << ISC01) | (1 << ISC11) out MCUCR, r16 ldi r16, (1 << INT0) | (1 << INT1) out GICR, r16 sei end: rjmp end ExtInt01: ldi r16, 0xff out PORTB, r16 reti ExtInt02: ldi r16, 0x00 out PORTB, r16 reti