https://devzone.nordicsemi.com/f/nordic-q-a/62403/how-do-i-create-a-random-square-wave-by-use-pwmHi , Dear Nordic supports: I am using NRF52832 for the iterative development of a product. In the previous generation of products, I used a PWM control LED flashing, whose flashing frequency is fixed and regular. However, in the current latest producten-USTelligent Community 13Thu, 11 Jun 2020 12:16:35 GMThttps://devzone.nordicsemi.com/thread/254482?ContentTypeID=1Thu, 11 Jun 2020 12:16:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fcc4db45-ac87-4273-aba3-b0524b73008aKarl Ylvisaker<p>Hello,</p> [quote user=""]However, in the current latest product, I need it to flash at an unfixed frequency. How can I make the PWM cycle random?[/quote] <p>Have you seen the <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v14.2.0/pwm_hw_example.html">PWM Driver example</a>&nbsp;or <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v14.2.0/pwm_example.html">the PWM Library example</a>?<br />From you ticket, it sounds like you will have to change the PWM channel&#39;s configuration every so often.<br />The former contains multiple demos for generating different PWM functionality, and it sounds like demo 1 might be exactly what you are looking for.<br /><br />Please do not hesitate to ask if anything still should be unclear, or in the case that you are experiencing any issues with this.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>