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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF54L DK - ESB Sample LF Clock Source Configuration Issue</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/119779/nrf54l-dk---esb-sample-lf-clock-source-configuration-issue</link><description>Hello, 
 I am currently using the nRF54L DK and running the ESB (Enhanced ShockBurst) sample in nRF Connect SDK v2.8.0 . I would like to change the LF (low-frequency) clock source from XTAL to RC (LFRC) , so I added the following configurations in prj</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 14 Mar 2025 04:11:46 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/119779/nrf54l-dk---esb-sample-lf-clock-source-configuration-issue" /><item><title>RE: nRF54L DK - ESB Sample LF Clock Source Configuration Issue</title><link>https://devzone.nordicsemi.com/thread/527294?ContentTypeID=1</link><pubDate>Fri, 14 Mar 2025 04:11:46 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4bf2dc3e-e1e1-4898-a80e-83bf0ddd1ece</guid><dc:creator>Doris.chen</dc:creator><description>&lt;p&gt;Dear Kenneth,&lt;/p&gt;
&lt;p data-start="129" data-end="205"&gt;After testing, the solution works as expected. Thank you for your support!&lt;/p&gt;
&lt;p data-start="207" data-end="263"&gt;To resolve the issue, I made changes to &lt;strong data-start="247" data-end="260"&gt;two files&lt;/strong&gt;:&lt;/p&gt;
&lt;p data-start="207" data-end="263"&gt;1.prj.conf&lt;/p&gt;
&lt;p data-start="207" data-end="263"&gt;&lt;pre class="ui-code" data-mode="text"&gt;CONFIG_ASSERT=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y&lt;/pre&gt;&lt;/p&gt;
&lt;p data-start="207" data-end="263"&gt;2.nrf54l15dk_nrf54l15_cpuapp_ns.overlay&lt;/p&gt;
&lt;p data-start="207" data-end="263"&gt;&lt;pre class="ui-code" data-mode="text"&gt;/ {
    ...
    clocks {
        /delete-node/ lfxo;
    };
};&lt;/pre&gt;&lt;/p&gt;
&lt;p data-start="567" data-end="628"&gt;With these modifications, my code is now working correctly.&lt;/p&gt;
&lt;p data-start="630" data-end="662"&gt;I really appreciate your help!&lt;/p&gt;
&lt;p data-start="664" data-end="691"&gt;&lt;strong data-start="664" data-end="681"&gt;Best Regards,&lt;/strong&gt;&lt;br data-start="681" data-end="684" /&gt; Doris&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF54L DK - ESB Sample LF Clock Source Configuration Issue</title><link>https://devzone.nordicsemi.com/thread/527208?ContentTypeID=1</link><pubDate>Thu, 13 Mar 2025 14:25:21 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:fbe877b4-2272-4684-9b4f-f9b57fb2468c</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;In the overlay file also remove lfxo like this:&lt;/p&gt;
&lt;p&gt;/ {&lt;br /&gt;...&lt;br /&gt;&lt;br /&gt;clocks {&lt;br /&gt;/delete-node/ lfxo;&lt;br /&gt;};&lt;br /&gt;};&lt;/p&gt;
&lt;p&gt;Also, depending slightly of which NCS version you are working with, there may be an unhandled event that can cause an assert, so you may also need to add:&lt;/p&gt;
&lt;p&gt;CONFIG_ASSERT=n&lt;/p&gt;
&lt;p&gt;Other than that I do believe it should work. Let me know which made it work, so I can check if there is something I should follow up internally for future releases.&lt;/p&gt;
&lt;p&gt;Kenneth&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>