https://devzone.nordicsemi.com/f/nordic-q-a/23064/how-to-adjust-pwm-frequency-sdk11-nrf52I would like write music box by buzzer. So I need adjust the PWM frequency continuously. But i don&#39;t find the sample cede which is about adjust PWM frequency in SDK. Where can i get the related information ? thanks a lot.en-USTelligent Community 13Wed, 28 Jun 2017 09:09:38 GMThttps://devzone.nordicsemi.com/thread/90766?ContentTypeID=1Wed, 28 Jun 2017 09:09:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf9549cd-134b-40df-9f7a-f8bd7345fcf5ovrebekk<p>Hi Climent</p> <p>If I understand you correctly what you are looking for is just a function to make a square wave on a certain frequency?</p> <p>If so I think it might be easiest to do without using the PWM driver, rather by hooking up a timer to a GPIO using the PPI and GPIOTE peripherals. Then you can control the frequency by adjusting the CC registers of the timer directly.</p> <p>Best regards</p><div style="clear:both;"></div>