https://devzone.nordicsemi.com/f/nordic-q-a/115612/enable-hfclock-on-nrf53Hi there, I&#39;m using a nRF5340 to generate an 8MHz signal and would like to force the HFXO to always be used as the HFINT is not accurate enough. I have verified this with some simple code: In the complete application the cpunet should be running en-USTelligent Community 13Fri, 18 Oct 2024 08:35:55 GMThttps://devzone.nordicsemi.com/thread/506841?ContentTypeID=1Fri, 18 Oct 2024 08:35:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:91ba9ca0-6a9f-414d-bcb5-7d1994e19cfd__karel<p>Thanks Vidar!<br />Helpful as always!</p> <p></p> <div id="ConnectiveDocSignExtentionInstalled" data-extension-version="1.0.4"></div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/506825?ContentTypeID=1Fri, 18 Oct 2024 06:57:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b144ed29-bcb9-49a7-b0e9-e6875423f6bdVidar Berg<p>Hi,</p> <p>I recommend using the &#39;onoff&#39; to request HFXO. This ensures that the clock cannot be released again by other SDK modules such as MPSL. There is an example of how you can use the API here:&nbsp;<a href="https://github.com/nrfconnect/sdk-nrf/blob/2adae75be0325db516bbee87634d1f16eb3f8396/samples/peripheral/radio_test/src/main.c#L17">https://github.com/nrfconnect/sdk-nrf/blob/2adae75be0325db516bbee87634d1f16eb3f8396/samples/peripheral/radio_test/src/main.c#L17</a></p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>