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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>Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/119223/title-led-not-blinking-on-custom-board-raytac-mdbt50q---nrf52840</link><description>Hello, 
 I am using a Raytac MDBT50Q (nRF52840) on a custom board , and I am trying to blink an LED, but it is not working. 
 
 &amp;quot;I need urgent help as this is blocking my development. Any quick suggestions would be greatly appreciated!&amp;quot;</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 25 Feb 2025 07:12:11 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/119223/title-led-not-blinking-on-custom-board-raytac-mdbt50q---nrf52840" /><item><title>RE: Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/thread/524487?ContentTypeID=1</link><pubDate>Tue, 25 Feb 2025 07:12:11 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2f7c11e7-651c-44cf-b152-16ac1faa5ff0</guid><dc:creator>runsiv</dc:creator><description>&lt;p&gt;Hi, if you add&amp;nbsp;the following&amp;nbsp;to your prj.conf it should be fine.&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;div&gt;&lt;span&gt;CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div&gt;
&lt;div&gt;&lt;span&gt;CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span&gt;Regards&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span&gt;Runar&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/thread/524475?ContentTypeID=1</link><pubDate>Tue, 25 Feb 2025 04:21:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8e802b21-7809-4d21-b0bc-e6eb2a302d63</guid><dc:creator>Usha</dc:creator><description>&lt;p&gt;yes i have use internal crystal but how can i set any suggestion?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/thread/524396?ContentTypeID=1</link><pubDate>Mon, 24 Feb 2025 14:55:00 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:05d018a1-be5a-4873-bc2b-cffe172a1829</guid><dc:creator>runsiv</dc:creator><description>&lt;p&gt;It would be more efficient if you give information I asked for. Anyhow, I common issue that we see is that people do not create their own custom board and just uses an overlay for their custom board. Do you use external LF crystal or internal? If you use internal, have you set this up in your configuration?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;
&lt;p&gt;Runar&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/thread/524313?ContentTypeID=1</link><pubDate>Mon, 24 Feb 2025 11:12:31 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:61c2b078-d36c-44fd-8465-37ccf21703e2</guid><dc:creator>Usha</dc:creator><description>&lt;p&gt;NCS version 2.5.1 and toolchain&lt;/p&gt;
&lt;p&gt;i have tried on DK and it&amp;#39;s works properly&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Title: LED Not Blinking on Custom Board (Raytac MDBT50Q - nRF52840</title><link>https://devzone.nordicsemi.com/thread/524257?ContentTypeID=1</link><pubDate>Mon, 24 Feb 2025 08:47:51 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a73dc7c6-4cf7-43e9-a849-98bfb4885beb</guid><dc:creator>runsiv</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;Please provide the following:&lt;/p&gt;
&lt;p&gt;- NCS version and toolchain&lt;/p&gt;
&lt;p&gt;- overlay for your application&amp;nbsp;&lt;/p&gt;
&lt;p&gt;As this is a custom board, have you tried your application on a DK and verified if it works? What starting point did you use for the custom board?&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;
&lt;p&gt;Runar&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>