PROJETS GEII-1 Cachan / Mbed 2 deprecated MP3_test

Décodeur MP3 de test monofichier

Dependencies:   SDFileSystem TextLCD VS1053lib mbed MPR121

Fork of MP3_test by Raynaud Gilles

mp3.cpp@0:acb04070ad91, 2016-09-28 (annotated)

Committer:
gr66
Date:
Wed Sep 28 18:10:24 2016 +0000
Revision:
0:acb04070ad91
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gr66 0:acb04070ad91 1 //********************************
gr66 0:acb04070ad91 2 // version 27/09/16
gr66 0:acb04070ad91 3 // G.Raynaud
gr66 0:acb04070ad91 4 //********************************
gr66 0:acb04070ad91 5 #include "mbed.h"
gr66 0:acb04070ad91 6 #include "TextLCD.h"
gr66 0:acb04070ad91 7 #include "SDFileSystem.h"
gr66 0:acb04070ad91 8 #include <VLSIcodec.h>
gr66 0:acb04070ad91 9
gr66 0:acb04070ad91 10 #define BUFFER_SIZE 2048
gr66 0:acb04070ad91 11
gr66 0:acb04070ad91 12 Serial com(USBTX, USBRX); //Initiallize the Serial Port 0 (9600 bits/sec)
gr66 0:acb04070ad91 13 unsigned char buff[BUFFER_SIZE];
gr66 0:acb04070ad91 14 // codec
gr66 0:acb04070ad91 15 VS1053Codec codec(p11, p12, p13, p14, p16, p15, p17); // mosi, miso, sck, cs, dreq, rst, bsync
gr66 0:acb04070ad91 16 // I2C Communication
gr66 0:acb04070ad91 17 I2C i2c_lcd(p28, p27 ); // SCL, SDA
gr66 0:acb04070ad91 18 // LCD
gr66 0:acb04070ad91 19 TextLCD_I2C lcd(&i2c_lcd, 0x40, TextLCD::LCD16x2); // I2C bus, PCF8574 Slaveaddress, LCD Type
gr66 0:acb04070ad91 20 // SD card
gr66 0:acb04070ad91 21 SDFileSystem sd(p5, p6, p7, p8, "sd"); // mosi, miso, sclk, cs the pinout on the mbed Cool Components workshop board
gr66 0:acb04070ad91 22
gr66 0:acb04070ad91 23 int main()
gr66 0:acb04070ad91 24 {
gr66 0:acb04070ad91 25 char ligne[17];
gr66 0:acb04070ad91 26 lcd.cls();
gr66 0:acb04070ad91 27 lcd.setBacklight(TextLCD::LightOff);
gr66 0:acb04070ad91 28 wait(1);
gr66 0:acb04070ad91 29 lcd.printf(" ");
gr66 0:acb04070ad91 30 lcd.cls();
gr66 0:acb04070ad91 31 lcd.setBacklight(TextLCD::LightOn);
gr66 0:acb04070ad91 32 lcd.setCursor(TextLCD::CurOff_BlkOff);
gr66 0:acb04070ad91 33 mkdir("/sd/mydir", 0777);
gr66 0:acb04070ad91 34 FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
gr66 0:acb04070ad91 35 if(fp == NULL) {
gr66 0:acb04070ad91 36 error("Could not open file for write\n");
gr66 0:acb04070ad91 37 }
gr66 0:acb04070ad91 38 fprintf(fp, "IUT---MP3");
gr66 0:acb04070ad91 39 fclose(fp);
gr66 0:acb04070ad91 40 fp = fopen("/sd/mydir/sdtest.txt", "r");
gr66 0:acb04070ad91 41 fscanf(fp,"%s",ligne);
gr66 0:acb04070ad91 42 lcd.printf(ligne);
gr66 0:acb04070ad91 43 fclose(fp);
gr66 0:acb04070ad91 44
gr66 0:acb04070ad91 45
gr66 0:acb04070ad91 46 wait(1);
gr66 0:acb04070ad91 47 //
gr66 0:acb04070ad91 48 codec.init(); // initialise le codec
gr66 0:acb04070ad91 49 codec.loadpatch(); // charge le patch (rev 1.5)
gr66 0:acb04070ad91 50 codec.setbassboost( 15, 150); // basse
gr66 0:acb04070ad91 51 codec.settrebleboost( 7, 15000); // aigue
gr66 0:acb04070ad91 52 codec.setvolume( 0x10, 0x10); // volume
gr66 0:acb04070ad91 53
gr66 0:acb04070ad91 54
gr66 0:acb04070ad91 55 FILE *song = fopen("/sd/music/1.mp3", "r"); // ouverture fichier MP3
gr66 0:acb04070ad91 56 codec.resetplaytime();
gr66 0:acb04070ad91 57 int aff=0;
gr66 0:acb04070ad91 58
gr66 0:acb04070ad91 59 while(1) {
gr66 0:acb04070ad91 60
gr66 0:acb04070ad91 61 while(!feof(song)) { // tant que fichier non termine
gr66 0:acb04070ad91 62
gr66 0:acb04070ad91 63 fread(buff, 1, BUFFER_SIZE, song); // lecture buffer
gr66 0:acb04070ad91 64 aff++;
gr66 0:acb04070ad91 65 if(aff%1==0){
gr66 0:acb04070ad91 66 codec.getplaytime(ligne);
gr66 0:acb04070ad91 67 ligne[5]=NULL;
gr66 0:acb04070ad91 68 lcd.locate(2,1);
gr66 0:acb04070ad91 69 lcd.puts(ligne);}
gr66 0:acb04070ad91 70 int iSize=0;
gr66 0:acb04070ad91 71 while( iSize < BUFFER_SIZE) {
gr66 0:acb04070ad91 72 codec.testdreq();
gr66 0:acb04070ad91 73 codec.writedata( buff[ iSize++]);
gr66 0:acb04070ad91 74 //if ( iSize > BUFFER_SIZE)
gr66 0:acb04070ad91 75 //break;
gr66 0:acb04070ad91 76 }
gr66 0:acb04070ad91 77 }
gr66 0:acb04070ad91 78 }
gr66 0:acb04070ad91 79 }