Junichi Katsu / Mbed 2 deprecated JBB_Sound_effect_test

As a test of the audio amplifier, it is a test to make a sound effect in the program. オーディオアンプのテストとして、プログラムで効果音を作るテストです。

Dependencies:   mbed

Diff: main.cpp

Revision:
0:5231285a0c94
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon May 12 13:52:38 2014 +0000
@@ -0,0 +1,42 @@
+#include "mbed.h"
+
+AnalogOut DACout(p18);
+DigitalOut AMPEnable(p12);
+DigitalIn SW1(p25);
+DigitalIn SW2(p26);
+
+void wave(float volume , float fq , float time)
+{
+    float w_time = 1.0 / fq;
+
+    AMPEnable = 0;
+    for (float i=0; i<time / w_time; i++) {
+        DACout = volume;
+        wait(w_time/2);
+        DACout = 0.0;
+        wait(w_time/2);
+    }
+    AMPEnable = 1;
+    
+}
+
+int main() {
+    SW1.mode(PullUp);
+    SW2.mode(PullUp);
+
+    while(1)
+    {
+        if( SW1 == 0 )
+        {
+            for( int i = 0 ; i < 10 ; i++ )
+            {
+                wave( 0.2 , i * 500.0 , 0.2 );
+            }
+        }
+        if( SW2 == 0 )
+        {
+            wave( 0.2 , 2000.0 , 0.2 );
+            wave( 0.2 , 1000.0 , 0.2 );
+        }
+    }
+}