This repository has been archived on 2019-08-09. You can view files and clone it, but cannot push or open issues or pull requests.
s6-up-tp/TP3/TP31.txt
2017-06-09 12:09:23 +02:00

63 lines
1.1 KiB
Plaintext

.equ PINA = 0x00 ; définition des adresses des ports
.equ DDRA = 0x01
.equ PORTA = 0x02
.equ PINB = 0x03
.equ DDRB = 0x04
.equ PORTB = 0x05
.equ RAMEND = 0x21FF
.equ SPH = 0x3E
.equ SPL = 0x3D
.equ SREG = 0x3F
.equ ADMUX = 0x7C
.equ ADCSRB = 0x7B
.equ ADCSRA = 0x7A
.equ ADCH = 0x79
.equ ADCL = 0x78
.def temp = r20
.org 0x000
; Vecteur RESET
jmp debut
.org 0x003A
jmp irqadc
.org 0x0080
codeAff: ; Représentation des chiffres sur l'afficheur 7-segments
.db 0b1111110, 0b001100, 0b0110111, 0b0011111, 0b1001101, 0b1011011, 0b1111011, 0b0001110, 0b1111111, 0b1011111
debut:
ldi r28, low(RAMEND)
ldi r29, high(RAMEND)
out SPL, r28
out SPH, r29
DDRA@IO <- 0xFF ; Port A (afficheur 7-segments) en sortie
DDRB@IO <- 0xFF ; Port B (afficheur 7-segments) en sortie
ADMUX <- 0b01100000 ; Sélection de l'ADC0
ADCSRB <- 0b00000000 ; Free running mode
ADCSRA <- 0b11101111 ; Activation des interruptions
sei
boucle:
sleep
jmp boucle
irqadc:
temp <- ADCH / 8
PORTA@IO <- codeAff@ROM[temp/10]
PORTB@IO <- codeAff@ROM[temp-(temp/10)*10] ; temp%10
reti