Sho Yama
/
NucleoAoutTest
Nucleo f334/l152用 Dac out Test
Diff: main.cpp
- Revision:
- 0:c3dfbba36e7e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Mon Jul 21 07:09:11 2014 +0000 @@ -0,0 +1,37 @@ +#include "mbed.h" + +#if defined(TARGET_NUCLEO_L152RE) +AnalogOut AOutL(PA_4); +AnalogOut AOutR(PA_5); +#elif defined(TARGET_NUCLEO_F334R8) +AnalogOut AOutL(PA_4); +AnalogOut AOutR(PA_5); +AnalogOut AOutS(PA_6); +#endif +uint16_t i; +uint16_t SinTable[360]; + +int main() +{ + float pi = 3.141592; + for(i = 0 ; i < 360 ; i++) + { +#if defined(TARGET_NUCLEO_L152RE) + SinTable[i] = (float)sin(pi*i/180.0F)*0x07ff+0x0800; +#elif defined(TARGET_NUCLEO_F334R8) + SinTable[i] = (float)sin(pi*i/180.0F)*0x07ff+0x0800; +#endif + } + + while(1) { + for(i = 0 ; i < 360 ; i++) + { + AOutL.write_u16(SinTable[i]); + AOutR.write_u16(SinTable[i]); +#if defined(TARGET_NUCLEO_F334R8) + AOutS.write_u16(SinTable[i]); +#endif + wait_us(1); // 1 sec + } + } +}