p igmon / Mbed 2 deprecated i2s_test_sample

Part of MicroGen4 Music Synthesizer Program. (But not test it yet.) I2S ,DMA ,Stereo ,16Bit Dac(PCM1781) See detail: http://www.geocities.jp/micro_diys/index2

Dependencies:   mbed

Now added generate Saw Wave to DAC function in generate(); You will hear Stereo saw wave sound now. /media/uploads/p_igmon/i2s_sample_test_audacity.png

more info: http://www.geocities.jp/micro_diys/i2s_test_sample/i2s_test_sample.html

Diff: main.cpp

Revision:
0:dc88722ab141
diff -r 000000000000 -r dc88722ab141 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jul 03 11:59:07 2014 +0000
@@ -0,0 +1,29 @@
+/*
+    COPYRIGHT(c) 2014 p.igmon
+*/
+
+#include "synthesizer.h"
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+
+DigitalOut myled(LED1);
+
+extern S16 * DMA_Buffer;
+extern __IO BUFFER_StateTypeDef BufferOffset;
+
+int main(){
+    uGen4_device_init();
+    pc.baud(9600);
+//    pc.printf("CPU SystemCoreClock is %d Hz\r\n", SystemCoreClock);
+
+    i2s_dma_init();
+ 
+    while(1) {
+        if(BufferOffset != DMA_Idle) wave_generate();
+
+        /* other work */
+
+    }
+}
+
+