Commit bb38f35fe0b3b8ad6fa3f0e47148290635f5b15f
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0ad2b0a8
Test ADC effectué avec succès
Par Thomas
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| 1 | +.equ PINA = 0x00 ; définition des adresses des ports | ||
| 2 | +.equ DDRA = 0x01 | ||
| 3 | +.equ PORTA = 0x02 | ||
| 4 | +.equ PINC = 0x06 | ||
| 5 | +.equ DDRC = 0x07 | ||
| 6 | +.equ PORTC = 0x08 | ||
| 7 | + | ||
| 8 | +.equ TTCR0A = 0x24 ; Initialisation du timer | ||
| 9 | +.equ TTCR0B = 0x25 | ||
| 10 | +.equ TMSK0 = 0x6e | ||
| 11 | + | ||
| 12 | +.equ SREG = 0x3F | ||
| 13 | +.equ RAMEND = 0x21FF | ||
| 14 | +.equ SPH = 0x3E ; initialisation de la pile | ||
| 15 | +.equ SPL = 0x3D | ||
| 16 | + | ||
| 17 | +.equ ADMUX = 0x7C | ||
| 18 | +.equ ADCSRB = 0x7B | ||
| 19 | +.equ ADCSRA = 0x7A | ||
| 20 | +.equ ADCH = 0x79 | ||
| 21 | + | ||
| 22 | +.def selAfficheur = r19 | ||
| 23 | +.def tmp = r20 | ||
| 24 | +.def val = r21 | ||
| 25 | +.def aff0 = r5 | ||
| 26 | +.def aff1 = r1 | ||
| 27 | +.def aff2 = r2 | ||
| 28 | +.def aff3 = r3 | ||
| 29 | + | ||
| 30 | +.org 0x000 | ||
| 31 | + ; Vecteur RESET | ||
| 32 | + jmp debut | ||
| 33 | + | ||
| 34 | +.org 0x002e | ||
| 35 | + ; Vecteur TIMER0 | ||
| 36 | + jmp tmr | ||
| 37 | + | ||
| 38 | +.org 0x003A ; ADC | ||
| 39 | + jmp adc | ||
| 40 | + | ||
| 41 | +.org 0x0080 | ||
| 42 | +afficheur: | ||
| 43 | + .DB 0x3F, 0x30, 0x6D, 0x79, 0x72, 0x5B, 0x5F, 0x31, 0x7F, 0x7B, 0x77, 0x40, 0x4c, 0x7c, 0x4f, 0x47, 0x40, 0x76, 0x04, 0x3c, 0x40, 0x0E, 0x37, 0x54, 0x5c, 0x40, 0x40, 0x44, 0x5b, 0x4e, 0x1c, 0x1c, 0x40, 0x40, 0x40, 0x40, 0x63, 0x00 | ||
| 44 | + ; 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, °, space | ||
| 45 | + | ||
| 46 | + | ||
| 47 | +debut: | ||
| 48 | + SREG <- 0b10000000 | ||
| 49 | + DDRA@IO <- 0xFF | ||
| 50 | + DDRC@IO <- 0xFF | ||
| 51 | + TTCR0A@IO <- 0x01 | ||
| 52 | + TTCR0B@IO <- 0x03 | ||
| 53 | + TMSK0 <- 0x01 | ||
| 54 | + selAfficheur <- 0x01 | ||
| 55 | + | ||
| 56 | + ADMUX <- 0b01100000 | ||
| 57 | + ADCSRB <- 0b00000010 | ||
| 58 | + ADCSRA <- 0b11011110 | ||
| 59 | + | ||
| 60 | + PORTA@IO <- 0xAA | ||
| 61 | + PORTC@IO <- 0x00 | ||
| 62 | + SEI | ||
| 63 | + | ||
| 64 | +boucle: | ||
| 65 | + ; On attend et on recommence | ||
| 66 | + saut boucle | ||
| 67 | + | ||
| 68 | + | ||
| 69 | +tempo: | ||
| 70 | + ldi r24,8 | ||
| 71 | +tempoA: | ||
| 72 | + subi r22,1 | ||
| 73 | + sbci r23,0 | ||
| 74 | + sbci r24,0 | ||
| 75 | + brcc tempoA | ||
| 76 | + ret | ||
| 77 | + | ||
| 78 | +adc: | ||
| 79 | + | ||
| 80 | + val <- ADCH | ||
| 81 | + aff0 <- val/1-(val/10)*10 | ||
| 82 | + aff1 <- val/10-(val/100)*10 | ||
| 83 | + aff2 <- val/100 | ||
| 84 | + aff3 <- 0 | ||
| 85 | + ADCSRA <- 0b11011101 | ||
| 86 | + reti | ||
| 87 | + | ||
| 88 | + | ||
| 89 | +tmr: | ||
| 90 | + lsl selAfficheur | ||
| 91 | + si selAfficheur > 8 alors selafficheur <- 1 | ||
| 92 | + portc@IO <- 0xff - selAfficheur | ||
| 93 | + | ||
| 94 | + si selAfficheur == 1 alors porta@IO <- afficheur@ROM[aff0] | ||
| 95 | + si selAfficheur == 2 alors porta@IO <- afficheur@ROM[aff1] | ||
| 96 | + si selAfficheur == 4 alors porta@IO <- afficheur@ROM[aff2] | ||
| 97 | + si selAfficheur == 8 alors porta@IO <- afficheur@ROM[aff3] | ||
| 98 | + reti | ||
| 99 | + |