Yasushi TAUCHI
/
Sound_PWM_1
Diff: main.cpp
- Revision:
- 0:862276502fe2
diff -r 000000000000 -r 862276502fe2 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Mon Dec 26 12:45:32 2011 +0000 @@ -0,0 +1,24 @@ +#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" + +PwmOut sp1(p25); + +int main() { + float mm[]={mC,mD,mE,mF,mG,mA,mB,mC*2}; + int i; + + for (i=0;i<sizeof(mm);i++) { + sp1.period(1.0/mm[i]); + sp1.write(0.5f); + wait(0.5f); + sp1.write(0.0f); + } + while (1); +}