Nordic Connect Development Environment for pro-production prototype using Fastnel BT80Fhttps://devzone.nordicsemi.com/f/nordic-q-a/79903/nordic-connect-development-environment-for-pro-production-prototype-using-fastnel-bt80fI&#39;m porting a bluetooth app developed on a PCA10040 to a prototype PCB with a Fanstel BT840F. My development environment is Windows 10 nRF Connect V3.7.1 Toolchain version 1.6.1 Segger IDE V5.50c I&#39;ve connected the prototype PCB using a PCA10095en-USTelligent Community 13Thu, 23 Sep 2021 09:42:59 GMTRE: Nordic Connect Development Environment for pro-production prototype using Fastnel BT80Fhttps://devzone.nordicsemi.com/thread/330787?ContentTypeID=1Thu, 23 Sep 2021 09:42:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dfca059e-71de-49c2-bcf8-92e035e783e1KentOverton<p>A Nordic engineer (Jay Tyzzer) responded to my post and asked if my prototype PCB had a 32khz crystal.&nbsp;</p> <p>It does not.</p> <p>Using the SES interface I used<span>&nbsp;</span>project-&gt;configure nrfsdk&nbsp;project-&gt;drivers-&gt;hardware clock controller support-&gt;nrf clock controller&nbsp;support -&gt; 32khz clock source to&nbsp;change from crystal oscillator to RC oscillator.</p> <p>The problem went away and I am now able to begin debugging my .prototype</p><div style="clear:both;"></div>