Revision 0:6249d6685c44, committed 2017-01-12

Comitter:

lolocosto

Date:

Thu Jan 12 08:33:12 2017 +0000

Commit message:

Driver for grove Serial Mp3 player

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 12 08:33:12 2017 +0000
@@ -0,0 +1,285 @@
+#include <mbed.h>
+
+DigitalOut sortie1(D3); 
+DigitalOut sortie2(D4);
+DigitalOut sortie3(D5);
+DigitalOut led(D13);
+DigitalIn  entree1(D9);
+DigitalIn  entree2(D10);
+DigitalIn  entree3(D11);
+
+Serial pc(USBTX,USBRX);
+Serial MP3(D8,D2);
+
+bool setVolume(uint8_t volume);
+bool setPlayMode(uint8_t playmode);
+bool playSDFile(int fileIndex);
+void setup() {
+
+  MP3.baud(9600);
+  pc.baud(9600);
+  
+  setVolume(31); // 0..31 max
+  setPlayMode(0);
+  wait_ms(2000);
+}
+
+int i=0;
+int C1=0;
+int C2=0;
+int C3=0;
+int C4=0;
+int C5=0;
+int C6=0;
+int C7=0;
+int C8=0;
+int C9=0;
+
+int main() {
+
+
+    while(1) {
+    sortie1=1;
+        if (entree1==1) {playSDFile(1);}
+        if (entree2==1) {playSDFile(4);}
+        if (entree3==1) {playSDFile(7);}
+    sortie1=0;
+    sortie2=1;
+        if (entree1==1) {playSDFile(2);}
+        if (entree2==1) {playSDFile(5);}
+        if (entree3==1) {playSDFile(8);}
+     sortie2=0;
+     sortie3=1;
+        if (entree1==1) {playSDFile(3);}
+        if (entree2==1) {playSDFile(6);}
+        if (entree3==1) {playSDFile(9);}
+     sortie3=0;
+  
+    
+    }
+    }
+
+
+
+//Set the music index to play, the index is decided by the input sequence
+//of the music;
+//hbyte: the high byte of the index;
+//lbyte: the low byte of the index;
+bool playSDFile(int fileIndex)
+{
+
+  uint8_t hbyte = fileIndex >> 8;
+  uint8_t lbyte = fileIndex & 0B11111111;
+  MP3.putc(0x7E);
+  MP3.putc(0x04);
+  MP3.putc(0xA0);
+  MP3.putc(hbyte);
+  MP3.putc(lbyte);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA0 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+// Pause on/off  the current music
+bool pauseOnOff()
+{
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xA3);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA3 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+//Set the volume, the range is 0x00 to 0x1F (0-31)
+bool setVolume(uint8_t volume)
+{
+  MP3.putc(0x7E);
+  MP3.putc(0x03);
+  MP3.putc(0xA7);
+  MP3.putc(volume);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA7 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+bool setPlayMode(uint8_t playmode)
+{
+
+  //00: single , 01: single loop, 02: all loop, 03: all random
+  if (((playmode == 0x00) | (playmode == 0x01) | (playmode == 0x02) | (playmode == 0x03)) == false)
+  {
+    pc.printf("PlayMode Parameter Error! ");
+    return false;
+  }
+  MP3.putc(0x7E);
+  MP3.putc(0x03);
+  MP3.putc(0xA9);
+  MP3.putc(playmode);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA9 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+// stop the current playing music
+bool stopFile() {
+
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xA4);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA4 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+bool nextFile() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xA5);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA5 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+bool previousFile() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xA6);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xA6 == MP3.getc())
+      return true;
+    else
+      return false;
+  }
+}
+
+unsigned char getState() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xC2);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xC2 == MP3.getc()) // Opcode
+      return MP3.getc(); // 01: play, 02:stop, 03:pause
+    else
+      return 0;
+  }
+
+}
+
+unsigned char getSDFileCount() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xC4);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xC4 == MP3.getc())
+      return MP3.getc(); // number of files on sd card
+    else
+      return 0;
+  }
+}
+
+unsigned char getFlashFileCount() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xC4);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xC4 == MP3.getc())
+      return MP3.getc(); // number of files on sd card
+    else
+      return 0;
+  }
+}
+
+int getCurrentFile() {
+  uint8_t hbyte = 0;
+  uint8_t lbyte = 0;
+
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xC6);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+
+    if (0xC6 == MP3.getc()) {
+      hbyte = MP3.getc();
+      lbyte = MP3.getc();
+      return (hbyte << 8) & lbyte;
+    }
+    else
+      return 0;
+  }
+}
+
+unsigned char getVolume() {
+  MP3.putc(0x7E);
+  MP3.putc(0x02);
+  MP3.putc(0xC1);
+  MP3.putc(0x7E);
+  wait_ms(10);
+  while (MP3.readable())
+  {
+    if (0xC1 == MP3.getc())
+      return MP3.getc(); // 0 to 31
+    else
+      return 0;
+  }
+}
+
+
+
+
+
+
+
+
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Jan 12 08:33:12 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9baf128c2fab
\ No newline at end of file