Cancel PWM signal

[dragonax]

is there any way to cancel the pwm signal once started? in the following code I tried "break" while loop doesn't work

Code: Select all

    rcservo_SendPWMPulses(channel, period, duty, count);

    while(rcservo_IsPWMCompleted(channel) == false){
      break;
    }


[roboard]

is there any way to cancel the pwm signal once started? in the following code I tried "break" while loop doesn't work

Currently, no PWM-mode API in RC servo lib of RoBoIO can stop PWM pulses directly. But you can try the following trick:

Code: Select all

    rcservo_SendPWMPulses(channel, period, duty, count);
    ....
    //trick to cancel PWM pulses of the last rcservo_SendPWMPulses(cannel, ...) call
    rcservo_SendPWMPulses(channel, period, duty, 1L);
    while(rcservo_IsPWMCompleted(channel) == false);


[dragonax]

Thanks i'll try that.

is it wrong if I use pwm_SetPulseCount and include the pwm.h unit

[roboard]

is it wrong if I use pwm_SetPulseCount and include the pwm.h unit

It is not suggested to use RC servo lib (including rcservo_SendPWMPulses()) and PWM lib (including pwm_SetPulseCount()) at the same time, because this may confuse the internal states of the two lib.