https://devzone.nordicsemi.com/f/nordic-q-a/103476/pwm-duty-cycle-errorHi, I have a custom board with a nRF52832, and I am using a hardware PWM channel to drive a buzzer. I am using SDK v17.1.0 and softdevice S132. Sometimes my board needs to advertise fast and sometimes slowly. When advertising slowly, everythingen-USTelligent Community 13Wed, 06 Sep 2023 11:52:16 GMThttps://devzone.nordicsemi.com/thread/444703?ContentTypeID=1Wed, 06 Sep 2023 11:52:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a0dc5385-ecac-4883-a161-5b1c2d66ce92Kenneth_CBS<p>It works - thank you so much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/444695?ContentTypeID=1Wed, 06 Sep 2023 11:06:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ed05db12-3f32-4753-8c8e-e8fbffe09541Kenneth<p>Hello,</p> <p>I would expect possible audio distortion may occur when updating the PWM, but to answer this question:</p> [quote user=""]According to my measurements, the PWM pulse width (and therefore also the duty cycle) changes randomly between 476us and 483us in the same burst of PWM pulses.[/quote] <p>Can you try have the HFCLK running continously by using&nbsp;sd_clock_hfclk_request()?</p> <p>Kenneth</p><div style="clear:both;"></div>