Diogo Cintra / Mbed 2 deprecated APS4-DAC-R-2R-8-bits

Gerador de sinal do tipo rampa, triangular e senoidal

Dependencies:   mbed

main.cpp@0:e900ae985f87, 2021-06-06 (annotated)

Committer:
diogonac
Date:
Sun Jun 06 15:29:51 2021 +0000
Revision:
0:e900ae985f87
APS4 - DAC R-2R de 8-bit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
diogonac 0:e900ae985f87 1 #include "mbed.h"
diogonac 0:e900ae985f87 2
diogonac 0:e900ae985f87 3 Serial pc (D1, D0); //Comunicação com USB
diogonac 0:e900ae985f87 4
diogonac 0:e900ae985f87 5 BusOut saida(D4, D5, D6, D7, D8, D9, D10, D11); //Barramento dos bits do DAC R-@R
diogonac 0:e900ae985f87 6
diogonac 0:e900ae985f87 7 InterruptIn troca_onda(PC_13); //Declara o botão do usuário para troca de sinal
diogonac 0:e900ae985f87 8
diogonac 0:e900ae985f87 9 int senoide [] = {0x80,0x83,0x86,0x89,0x8c,0x8f,0x92,0x95,
diogonac 0:e900ae985f87 10 0x98,0x9b,0x9e,0xa2,0xa5,0xa7,0xaa,0xad,
diogonac 0:e900ae985f87 11 0xb0,0xb3,0xb6,0xb9,0xbc,0xbe,0xc1,0xc4,
diogonac 0:e900ae985f87 12 0xc6,0xc9,0xcb,0xce,0xd0,0xd3,0xd5,0xd7,
diogonac 0:e900ae985f87 13 0xda,0xdc,0xde,0xe0,0xe2,0xe4,0xe6,0xe8,
diogonac 0:e900ae985f87 14 0xea,0xeb,0xed,0xee,0xf0,0xf1,0xf3,0xf4,
diogonac 0:e900ae985f87 15 0xf5,0xf6,0xf8,0xf9,0xfa,0xfa,0xfb,0xfc,
diogonac 0:e900ae985f87 16 0xfd,0xfd,0xfe,0xfe,0xfe,0xff,0xff,0xff,
diogonac 0:e900ae985f87 17 0xff,0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfd,
diogonac 0:e900ae985f87 18 0xfd,0xfc,0xfb,0xfa,0xfa,0xf9,0xf8,0xf6,
diogonac 0:e900ae985f87 19 0xf5,0xf4,0xf3,0xf1,0xf0,0xee,0xed,0xeb,
diogonac 0:e900ae985f87 20 0xea,0xe8,0xe6,0xe4,0xe2,0xe0,0xde,0xdc,
diogonac 0:e900ae985f87 21 0xda,0xd7,0xd5,0xd3,0xd0,0xce,0xcb,0xc9,
diogonac 0:e900ae985f87 22 0xc6,0xc4,0xc1,0xbe,0xbc,0xb9,0xb6,0xb3,
diogonac 0:e900ae985f87 23 0xb0,0xad,0xaa,0xa7,0xa5,0xa2,0x9e,0x9b,
diogonac 0:e900ae985f87 24 0x98,0x95,0x92,0x8f,0x8c,0x89,0x86,0x83,
diogonac 0:e900ae985f87 25 0x80,0x7c,0x79,0x76,0x73,0x70,0x6d,0x6a,
diogonac 0:e900ae985f87 26 0x67,0x64,0x61,0x5d,0x5a,0x58,0x55,0x52,
diogonac 0:e900ae985f87 27 0x4f,0x4c,0x49,0x46,0x43,0x41,0x3e,0x3b,
diogonac 0:e900ae985f87 28 0x39,0x36,0x34,0x31,0x2f,0x2c,0x2a,0x28,
diogonac 0:e900ae985f87 29 0x25,0x23,0x21,0x1f,0x1d,0x1b,0x19,0x17,
diogonac 0:e900ae985f87 30 0x15,0x14,0x12,0x11,0xf,0xe,0xc,0xb,
diogonac 0:e900ae985f87 31 0xa,0x9,0x7,0x6,0x5,0x5,0x4,0x3,
diogonac 0:e900ae985f87 32 0x2,0x2,0x1,0x1,0x1,0x0,0x0,0x0,
diogonac 0:e900ae985f87 33 0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x2,
diogonac 0:e900ae985f87 34 0x2,0x3,0x4,0x5,0x5,0x6,0x7,0x9,
diogonac 0:e900ae985f87 35 0xa,0xb,0xc,0xe,0xf,0x11,0x12,0x14,
diogonac 0:e900ae985f87 36 0x15,0x17,0x19,0x1b,0x1d,0x1f,0x21,0x23,
diogonac 0:e900ae985f87 37 0x25,0x28,0x2a,0x2c,0x2f,0x31,0x34,0x36,
diogonac 0:e900ae985f87 38 0x39,0x3b,0x3e,0x41,0x43,0x46,0x49,0x4c,
diogonac 0:e900ae985f87 39 0x4f,0x52,0x55,0x58,0x5a,0x5d,0x61,0x64,
diogonac 0:e900ae985f87 40 0x67,0x6a,0x6d,0x70,0x73,0x76,0x79,0x7c}; //Look Up table para gerar um sinal senoidal
diogonac 0:e900ae985f87 41
diogonac 0:e900ae985f87 42 int i, cont;
diogonac 0:e900ae985f87 43
diogonac 0:e900ae985f87 44 void rotina_troca_onda(void); //Rotina para trocar o sinal exibido
diogonac 0:e900ae985f87 45
diogonac 0:e900ae985f87 46 void rotina_rampa(void); //Rotina para gerar um sinal de uma rampa
diogonac 0:e900ae985f87 47 void rotina_triangular(void); //Rotina para gerar um sinal triangular
diogonac 0:e900ae985f87 48 void rotina_senoidal(void); //Rotina para gerar um sinal de uma senoide
diogonac 0:e900ae985f87 49
diogonac 0:e900ae985f87 50 int main()
diogonac 0:e900ae985f87 51 {
diogonac 0:e900ae985f87 52 pc.baud(115200); //Define a velocidade da porta USB
diogonac 0:e900ae985f87 53
diogonac 0:e900ae985f87 54 troca_onda.fall(&rotina_troca_onda); //Define quando o botão vai ser detectado
diogonac 0:e900ae985f87 55
diogonac 0:e900ae985f87 56 while(1) {
diogonac 0:e900ae985f87 57
diogonac 0:e900ae985f87 58 if(cont == 0)rotina_rampa();
diogonac 0:e900ae985f87 59 if(cont == 1)rotina_triangular();
diogonac 0:e900ae985f87 60 if(cont == 2)rotina_senoidal();
diogonac 0:e900ae985f87 61 if(cont >= 3) cont = 0;
diogonac 0:e900ae985f87 62
diogonac 0:e900ae985f87 63 }
diogonac 0:e900ae985f87 64 }
diogonac 0:e900ae985f87 65
diogonac 0:e900ae985f87 66 void rotina_troca_onda()
diogonac 0:e900ae985f87 67 {
diogonac 0:e900ae985f87 68 cont ++;
diogonac 0:e900ae985f87 69 }
diogonac 0:e900ae985f87 70
diogonac 0:e900ae985f87 71 void rotina_rampa()
diogonac 0:e900ae985f87 72 {
diogonac 0:e900ae985f87 73 for(i = 0; i <= 255; i++) {
diogonac 0:e900ae985f87 74 saida = i;
diogonac 0:e900ae985f87 75 wait(0.001);
diogonac 0:e900ae985f87 76 }
diogonac 0:e900ae985f87 77 }
diogonac 0:e900ae985f87 78
diogonac 0:e900ae985f87 79 void rotina_triangular()
diogonac 0:e900ae985f87 80 {
diogonac 0:e900ae985f87 81 for(i = 0; i <= 255; i++) {
diogonac 0:e900ae985f87 82 saida = i;
diogonac 0:e900ae985f87 83 wait(0.001);
diogonac 0:e900ae985f87 84 }
diogonac 0:e900ae985f87 85
diogonac 0:e900ae985f87 86 for(i = 255; i > -1; i--) {
diogonac 0:e900ae985f87 87 saida = i;
diogonac 0:e900ae985f87 88 wait(0.001);
diogonac 0:e900ae985f87 89 }
diogonac 0:e900ae985f87 90 }
diogonac 0:e900ae985f87 91
diogonac 0:e900ae985f87 92 void rotina_senoidal()
diogonac 0:e900ae985f87 93 {
diogonac 0:e900ae985f87 94 for(i = 0; i <= 255; i++) {
diogonac 0:e900ae985f87 95 saida = senoide[i];
diogonac 0:e900ae985f87 96 wait(0.001);
diogonac 0:e900ae985f87 97 }
diogonac 0:e900ae985f87 98 }