Soft PWM?

Posted on December 04, 2017 at 23:33

I need to update DAC in PWM.

I have STM32F103C8T6 and two free timers (TIM3, TIM4).

But they only have one global interrupt. How do I get PWM?

I'm only called HAL_TIM_PWM_PulseFinishedCallback() and I get the meander.

// PWM Pulse finished

bool flag = true;

void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim){

if(htim->Instance == TIM3) {

UpdateDAC(flag ? 1.125 : 0.5);

flag = !flag;

}

#cube-hal #pwm

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