exercises/01_atmega328_lauflicht
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Marcel Schirmer
2025-06-20 20:20:23 +02:00
parent 204e94d613
commit 89cb9a3464
1 changed files with 39 additions and 10 deletions
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49
main.asm
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@@ -7,16 +7,17 @@
.include "./m328Pdef.inc"
.list
.def setter = R16
.def overflows = R17
.def active_led = R18
.def btn_status = R19
.def cur_direction = R20
.def setter = R16
.def overflows = R17
.def active_led = R18
.def btn_status = R19
.def cur_direction = R20
.equ L2R = 0x01
.equ R2L = 0x04
.equ RBTN_PRESSED = 0b00000100
.equ LBTN_PRESSED = 0b00000001
.equ BOTH_PRESSED = 0b00000101
.org 0x0000
rjmp init
@@ -93,13 +94,41 @@ overflow_handler:
; Setze definierten Start für den
; Laufrichtungswechsel
;----
cpi btn_status, LBTN_PRESSED
brne PC+2
ldi cur_direction, L2R
check_left_btn:
cpi btn_status, LBTN_PRESSED
brne check_right_btn
cpi btn_status, RBTN_PRESSED
brne PC+2
; Linker Button wurde gedrückt
ldi cur_direction, L2R
in setter, PORTD
cpi setter, 0
brne run_animation
; Lauflicht wurde zuvor gestopped und muss neu initialisiert werden
ldi setter, 0b00000001
out PORTD, setter
rjmp run_animation
check_right_btn:
cpi btn_status, RBTN_PRESSED
brne check_both_btn
; Rechter Button wurde gedrückt
ldi cur_direction, R2L
in setter, PORTD
cpi setter, 0
brne run_animation
; Lauflicht wurde zuvor gestopped und muss neu initialisiert werden
ldi setter, 0b10000000
out PORTD, setter
rjmp run_animation
check_both_btn:
cpi btn_status, BOTH_PRESSED
brne run_animation
ldi setter, 0
out PORTD, setter
;------
run_animation: