Yasushi TAUCHI
/
Sound_Waon
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Revision 0:2309ea52d6c9, committed 2011-12-26
- Comitter:
- yueee_yt
- Date:
- Mon Dec 26 13:13:15 2011 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Dec 26 13:13:15 2011 +0000
@@ -0,0 +1,64 @@
+#define mC 261.626
+#define mD 293.665
+#define mE 329.628
+#define mF 349.228
+#define mG 391.995
+#define mA 440.000
+#define mB 493.883
+
+#include "mbed.h"
+
+Ticker timer;
+AnalogOut sp1(p18);
+float ms[180];
+float m1,m2,m3;
+
+void sound_out(void) {
+ static float j1=0;
+ static float j2=0;
+ static float j3=0;
+ j1=j1+m1;
+ j2=j2+m2;
+ j3=j3+m3;
+ if (j1>180)j1=j1-180;
+ if (j2>180)j2=j2-180;
+ if (j3>180)j3=j3-180;
+ sp1.write((ms[(int)j1]+ms[(int)j2]+ms[(int)j3])/3.0);
+}
+
+int main() {
+ int i;
+ //setting sincurv
+ for (i=0;i<180;i++) {
+ ms[i]=sin(2*3.1415*(float)i/180.0)/2.0+0.5;
+ }
+ timer.attach_us(&sound_out,10); //10kHz
+ //ceg
+ m1=mC*2*180/100000;
+ m2=mE*2*180/100000;
+ m3=mG*2*180/100000;
+ wait(1.0f);
+ //cfa
+ m1=mC*2*180/100000;
+ m2=mF*2*180/100000;
+ m3=mA*2*180/100000;
+ wait(1.0f);
+ //ceg
+ m1=mC*2*180/100000;
+ m2=mE*2*180/100000;
+ m3=mG*2*180/100000;
+ wait(1.0f);
+ //bdg
+ m1=mB*180/100000;
+ m2=mD*2*180/100000;
+ m3=mG*2*180/100000;
+ wait(1.0f);
+ //ceg
+ m1=mC*2*180/100000;
+ m2=mE*2*180/100000;
+ m3=mG*2*180/100000;
+ wait(1.0f);
+ timer.detach();
+ sp1.write(0.0f);
+ while (1);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Dec 26 13:13:15 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/078e4b97a13e