https://devzone.nordicsemi.com/f/nordic-q-a/62778/how-to-configure-lf-clock-source-in-the-nrf-connect-sdkHow does one configure the LF clock source using the new nrf connect SDK ? (not nRF5_SDK) I don&#39;t see any option for then when doing west build -t menuconfigen-USTelligent Community 13Fri, 19 Jun 2020 11:17:42 GMThttps://devzone.nordicsemi.com/thread/255949?ContentTypeID=1Fri, 19 Jun 2020 11:17:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:539b3dde-88f8-43f2-ba71-c93fa5f6ef49Sigurd<p>Hi,</p> <p>It&#39;s under&nbsp; Device Drivers → Hardware clock controller support → NRF Clock controller support → 32KHz clock source</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-35977c9e514040ada1af51ec2639783e/pastedimage1592565387248v1.png" alt=" " /></p> <p>So if you have a board without LF crystal, set&nbsp;</p> <div> <div><span>CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC</span><span>=y</span></div> <div><span></span></div> <div><span>in your prj.conf file</span></div> </div> <p></p><div style="clear:both;"></div>