Nuvoton
/
NuMaker-mbed-PWM1_DCservo
NuMaker PWM1 drive +5V DC servo motor
main.cpp
- Committer:
- shliu1
- Date:
- 2017-10-02
- Revision:
- 7:cd68421d2a50
- Parent:
- 4:cae45e2ca73a
- Child:
- 8:03564884cf96
File content as of revision 7:cd68421d2a50:
// NuMaker-PFM-NUC472 : PWM1 output to drive DC servo motor #include "mbed.h" #if defined(TARGET_NUMAKER_PFM_NUC472) PwmOut pwm1(PF_10); // PWM1 pinname #elif defined(TARGET_NUMAKER_PFM_M453) PwmOut pwm1(PC_7); #elif defined(TARGET_NUMAKER_PFM_M487) PwmOut pwm1(PA_4); // PWM1 pinname #endif int main() { int i=0; printf("...DCserv Start...\n\r"); pwm1.period_us(20000); // set PWM period to 20ms (50Hz) for (i=500; i<=2500; i=i+200) { // from 0.5ms to 2.5ms pwm1.pulsewidth_us(i); // set PWM pulse width to rotate motor Thread::wait(1000); // delay printf("DCservo pulse width = %d\n\r", i); } printf("...DCserv End.....\n\r"); }