PWM Driver

[Charan]

Hello,

I want to use the PWM driver to change the output voltage with respect to analog input voltage. If I call the simple_playback_sequence from the SAADC event handler, the voltage only raises for that time but if I call the same function from the while(); loop in main, it remains constant. I am giving LOOPS, no repeats and no end delay. Is there any specific reason that I can't call PWM from the event handlers and have to do it only from the infinite while loop?

[Charan]

Still not working.

Updated code.

static uint16_t count = 0;

void timer_handler()

{

count+= 1;

pwm_change();

}

void pwm_change()
{
nrf_pwm_values_common_t seq_values[] = {count};
nrf_pwm_sequence_t const seq =
{
.values.p_common = seq_values,
.length = NRF_PWM_VALUES_LENGTH(seq_values),
.repeats = 0,
.end_delay = 0
};
nrf_drv_pwm_simple_playback(&m_pwm0, &seq, 1, NRF_DRV_PWM_FLAG_LOOP);
}

[Einar Thorsrud]

seq_values is still not static, and making the count variable that you copy from static does not help in that regard.

Please insert code using Insert -> Code in the future, as that makes it much more readable.