https://devzone.nordicsemi.com/f/nordic-q-a/16161/nrf51-iot-sdk-clock-source-on-customized-boardHI, I am now trying to use nrf51_iot_sdk_0.8.0_f1f6187. And I have run example application in nrf51 iot sdk on nrf51-dk board. It works fine. Now I want to develop on a customized nrf51 board. This board changes the 16MHZ external crystal oscillatoren-USTelligent Community 13Fri, 02 Sep 2016 11:24:42 GMThttps://devzone.nordicsemi.com/thread/61684?ContentTypeID=1Fri, 02 Sep 2016 11:24:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1cf76344-a914-4e4f-8820-4c11e1cec281Stefan Birnir Sverrisson<p>Hi Lezard</p> <p>Please look at the information provided in my answer on <a href="https://devzone.nordicsemi.com/question/33972/use-external-32mhz-crystal/?answer=34766#post-id-34766">this thread</a>.</p><div style="clear:both;"></div>