Diff: VS1053.cpp

Revision:

7:97a8edd44fe9

Parent:

6:1f57fbd3aeb5

Child:

8:5ad25d480d5f

diff -r 1f57fbd3aeb5 -r 97a8edd44fe9 VS1053.cpp
--- a/VS1053.cpp	Fri Dec 20 21:34:03 2013 +0000
+++ b/VS1053.cpp	Sat Sep 05 12:16:06 2015 +0000
@@ -1,8 +1,15 @@
-// ==================================================== Dec 21 2013, kayeks ==
-// VS1053.cpp
-// ===========================================================================
-// Just a simple library for VLSI's mp3/midi codec chip
-//   - Minimal and simple implementation (and dirty too)
+/**
+ *  ==================================================== Dec 21 2013, kayeks ==
+ *  VS1053.cpp
+ *  ===========================================================================
+ *  Just a simple library for VLSI's mp3/midi codec chip
+ *       - Minimal and simple implementation (and dirty too)
+ *
+ *  Modified on 05 September 2015 by Vassilis Serasidis.
+ *       -   Added a patch for playing MP3 files on some "LC Technology" VS1053 boards.
+ *
+ *
+ */
 
 #include "mbed.h"
 #include "VS1053.h"
@@ -39,6 +46,20 @@
     wait(.05);
 }
 
+/** Patch for some LC Technology VS1053 board with "no sound" problem. 
+ *  5 September 2015 bby Vassilis Serasidis 
+ */
+void VS1053::modeSwitch(void)
+{
+    //GPIO_DDR
+    writeReg(SCI_WRAMADDR, 0xc017);
+    writeReg(SCI_WRAM, 0x0003);
+  
+    wait(.05);
+    writeReg(SCI_MODE, (1<<SM_SDINEW) | (1<<SM_RESET));
+    wait(.05);
+}
+
 /** Send a data byte to VS1053. */
 void VS1053::sendDataByte(uint8_t data) {
     while (!dreq);