PROJETS GEII-1 Cachan
lecteur mp3
Dependencies: MPR121 SDFileSystem TextLCD VS1053lib mbed
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MP3_test
by 
PROJETS GEII-1 Cachan
Diff: touchpad.cpp
- Revision:
- 1:d1ed30ba5ca9
diff -r acb04070ad91 -r d1ed30ba5ca9 touchpad.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/touchpad.cpp Sun Oct 30 23:20:20 2016 +0000
@@ -0,0 +1,326 @@
+ #include "MPR121.h"
+ #include "mbed.h"
+ #include "TextLCD.h"
+ #include "SDFileSystem.h"
+ #include <VLSIcodec.h>
+
+#define BUFFER_SIZE 2048
+#define play 0x0001
+#define stop 0x0010
+#define pause 0x0100
+#define Vhigh 0x0002
+#define Vdown 0x0020
+#define previous 0x0004
+#define next 0x0040
+
+Serial com(USBTX, USBRX); //Initiallize the Serial Port 0 (9600 bits/sec)
+ // codec
+VS1053Codec codec(p11, p12, p13, p14, p16, p15, p17); // mosi, miso, sck, cs, dreq, rst, bsync
+ // SD card
+SDFileSystem sd(p5, p6, p7, p8, "sd"); // mosi, miso, sclk, cs the pinout on the mbed Cool Components workshop board
+ // I2C Communication
+/*I2C i2c_lcd(p9, p10 ); // SDA, SCL */
+ I2C i2c(p28, p27); //SDA, SCL
+ // LCD
+TextLCD_I2C lcd(&i2c, 0x40, TextLCD::LCD16x2); // I2C bus, PCF8574 Slaveaddress, LCD Type
+ //Touch_pad
+ InterruptIn irq(p26);
+ MPR121 touch_pad(i2c, irq, MPR121::ADDR_VSS );
+
+ unsigned char buff[BUFFER_SIZE];
+ int check=0;
+ Timer timer;
+
+ int main()
+{
+ touch_pad.init(); //initialisation du touch_pad
+ touch_pad.enable(); //activation du touch_pad
+ uint16_t button_val; // variable recueillant la valeur du bouton
+ bool lecture=0; //booléen conditionnant l'etat play
+ int right=0x30, left =0x30; //initialisation des valeurs de volumes de départ
+ int temps = 0 ;
+ FILE *song;
+ char ligne[13],time[10];
+ int aff=0;
+ char *title_song[8]={"wind", "toreador", "Moove", "Pirate", "DBZ", "Safe", "yolanda"};
+
+
+ lcd.cls();
+ lcd.setBacklight(TextLCD::LightOff);
+ wait(1);
+ lcd.printf(" ");
+ lcd.cls();
+ lcd.setBacklight(TextLCD::LightOn);
+ lcd.setCursor(TextLCD::CurOff_BlkOff);
+ mkdir("/sd/mydir", 0777);
+ FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+ if(fp == NULL)
+ {
+ error("Could not open file for write\n");
+ }
+ fprintf(fp, "IUT---MP3");
+ fclose(fp);
+ fp = fopen("/sd/mydir/sdtest.txt", "r");
+ fscanf(fp,"%s",ligne);
+ lcd.printf(ligne);
+ fclose(fp);
+
+
+ //
+ codec.init(); // initialise le codec
+ codec.loadpatch(); // charge le patch (rev 1.5)
+ codec.setbassboost( 15, 150); // basse
+ codec.settrebleboost( 7, 15000); // aigue
+ codec.setvolume(right, left); // volume
+
+ int song_number=1;
+ char str[16] = "/sd/music/";
+
+ printf("\n Ouverture fichie \n \n");
+ wait(1);
+
+ codec.resetplaytime();
+
+
+ while(1)
+ {
+
+ button_val=touch_pad.buttonPressed();
+ printf("\n button = 0x%04x \n", button_val);
+
+ typedef enum{e_primordial, e_init, e_play, e_pause, e_next, e_previous, e_stop,e_suite}type_etat;
+ static type_etat etat=e_primordial;
+
+ switch(etat)
+ {
+ case e_primordial :
+ if(button_val==play)etat=e_init;
+ break;
+
+ case e_init :
+ lecture=1;
+ sprintf(str+10,"%d",song_number); //donne le numéro de la musique
+ strcat(str,".mp3"); //concatene le numero avec l'extension de la musique
+ song = fopen(str, "r");
+ etat = e_play;
+ break;
+ //Play
+
+ case e_play :
+ lcd.cls();
+ lcd.locate(0,0);
+ lcd.printf("%d %s",song_number,title_song[song_number]);
+ while(lecture)
+ {
+
+ timer.start();
+ printf("feof \n");
+ fread(buff, 1, BUFFER_SIZE, song); // lecture buffer
+ printf("lecture buffer \n");
+ lcd.locate(9,1);
+ lcd.printf("PLAY");
+ aff++;
+ if(aff%1==0){
+ codec.getplaytime(ligne);
+ ligne[5]=NULL;
+ lcd.locate(1,1);
+ lcd.puts(ligne);}
+
+ int iSize=0;
+ for( iSize=0;iSize < BUFFER_SIZE;iSize++)
+ {
+ codec.testdreq();
+ codec.writedata( buff[ iSize]);
+ }
+ if(feof(song)&&button_val==0x0000)
+ {
+ printf("fin du fichier \n");
+ codec.resetplaytime();
+ etat=e_next;
+ }
+
+ button_val = touch_pad.buttonPressed();
+ if(button_val==stop)//stop
+ {
+ lecture=0;
+ etat=e_stop;
+ }
+
+ if(button_val==0x0004)//previeous
+ {
+ lecture=0;
+ wait(0.5);
+ etat=e_previous;
+ }
+ if(button_val==0x0040)//next
+ {
+ lecture=0;
+ wait(0.5);
+ etat=e_next;
+ }
+ if(button_val==0x0020)//augmenter la volume
+ {
+ if(temps%1==0)
+ {
+ codec.setvolume(right--, left--);
+ printf("Volume++ \n");
+ lcd.locate(12,0);
+ lcd.printf("Vol+");
+ //affiche=0;
+ }
+ }
+
+ if(button_val==0x0002)//dimunuer la volume
+ {
+ if(temps%1==0)
+ {
+ codec.setvolume(right++, left++);
+ printf("Volume-- \n");
+ lcd.locate(12,0);
+ lcd.printf("Vol-");
+ }
+ }
+
+ if(button_val==pause)//pause
+ {
+ lecture=!lecture;
+ etat = e_pause;
+ }
+
+ if(button_val==0x000)//augmenter la volume
+ {
+ lcd.locate(10,0);
+ lcd.printf(" ");
+ }
+
+ }
+ break;
+ //Stop
+
+ case e_stop :
+ printf("stop \n");
+ lcd.locate(9,1);
+ lcd.printf("Stop");
+ lecture=0;
+ fclose(song);
+ codec.resetplaytime();
+ song = fopen(str, "r");
+ if(button_val==play)etat=e_init;
+ if(button_val==0x0004)//previeous
+ {
+ lecture=0;
+ wait(1);
+ etat=e_previous;
+ }
+ if(button_val==0x0040)//next
+ {
+ lecture=0;
+ wait(1);
+ etat=e_next;
+ }
+ break;
+
+ //Pause
+
+ case e_pause :
+ printf("\n button = 0x%04x \n", button_val);
+ printf("pause \n");
+ lcd.locate(9,1);
+ lcd.printf("Pause");
+ if(button_val==play)
+ {
+ lecture=1;
+ etat=e_play;
+ }
+ if(button_val==0x0004)//previeous
+ {
+ lecture=0;
+ wait(1);
+ etat=e_previous;
+ }
+ if(button_val==0x0040)//next
+ {
+ lecture=0;
+ wait(1);
+ etat=e_next;
+ }
+ if(button_val==stop)
+ {
+ lcd.locate(9,1);
+ lcd.printf(" ");
+ etat=e_stop;
+ }
+ if(button_val==0x0020)//augmenter la volume
+ {
+ if(temps%1==0)
+ {
+ codec.setvolume(right--, left--);
+ printf("Volume++ \n");
+ lcd.locate(12,0);
+ lcd.printf("Vol+");
+
+ }
+ }
+
+ if(button_val==0x0002)//dimunuer la volume
+ {
+ if(right<=0x00 && left<=0x00)
+ {
+ codec.setvolume(0x00, 0x00);
+ printf("volume max");
+ }
+ else
+ {
+ if(temps%1==0)
+ {
+ codec.setvolume(right++, left++);
+ printf("Volume-- \n");
+ lcd.locate(12,0);
+ lcd.printf("Vol-");
+
+ }
+ }
+ }
+
+ if(button_val==0x000)//augmenter la volume
+ {
+ lcd.locate(10,0);
+ lcd.printf(" ");
+ }
+ break;
+ //Next
+
+ case e_next :
+ lcd.locate(9,1);
+ lcd.printf("Next");
+ wait(0.5);
+ codec.resetplaytime();
+ song_number++;
+ if(song_number==7)song_number=0;
+ lecture=1;
+ printf("Next \n");
+ etat=e_init;
+ break;
+ //Previous
+
+ case e_previous :
+ lcd.locate(7,1);
+ lcd.printf("Previous");
+ wait(0.5);
+ codec.resetplaytime();
+ song_number--;
+ if(song_number<0)song_number=6;
+ lecture=1;
+ printf("Previous \n");
+ etat=e_init;
+ break;
+
+ default:
+ printf("error");
+ break;
+ }
+ }
+
+ }
+
+
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