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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>LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/47201/lfclk-request-gives-fatal-error</link><description>Hi, 
 I modified template example and now I am trying to add usb cdc. The applicaton results in Fatal error .I found that nrf_drv_clock_init() works fine but nrf_drv_clock_lfclk_request(NULL); gives Fatal error. 
 
 I have included 
 in header , enabled</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 22 May 2019 14:15:59 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/47201/lfclk-request-gives-fatal-error" /><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/188617?ContentTypeID=1</link><pubDate>Wed, 22 May 2019 14:15:59 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2540a15b-d9d4-41c9-a20b-a450aeeb6d47</guid><dc:creator>Ali Rumane</dc:creator><description>&lt;p&gt;Thank you for your suggestion. I will try that solution.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/188612?ContentTypeID=1</link><pubDate>Wed, 22 May 2019 14:05:22 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3d0a1e81-3983-4ea5-94d1-853de3d44973</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Check out &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/21926/floating-uart-fails-the-device/86084#86084"&gt;this post&lt;/a&gt;.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/188593?ContentTypeID=1</link><pubDate>Wed, 22 May 2019 13:36:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c4a6602b-d6c1-416c-abf9-447c8016d71d</guid><dc:creator>Ali Rumane</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;They were floating while I got error.&lt;/p&gt;
&lt;p&gt;I have connected 1K resistor across Rx and Tx pins and won&amp;#39;t be using UART all the time.&lt;/p&gt;
&lt;p&gt;How do I need to connect or configure UART so that I don&amp;#39;t receive such problem?&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/187803?ContentTypeID=1</link><pubDate>Mon, 20 May 2019 08:16:54 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:49553089-943d-4b6a-89f0-233f303d7fa8</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Are the UART lines connected to anything? If they are left floating, it may lead to errors being detected on the lines.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/187634?ContentTypeID=1</link><pubDate>Fri, 17 May 2019 07:55:07 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a90ca507-91df-43ee-b90c-6972cae9eea0</guid><dc:creator>Ali Rumane</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Thank you for your reply.&lt;/p&gt;
&lt;p&gt;I found that the error was from&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;pre class="ui-code" data-mode="c_cpp"&gt;void uart_event_handle(app_uart_evt_t * p_event)

    APP_ERROR_HANDLER(p_event-&amp;gt;data.error_communication)&lt;/pre&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;It is common error found on devzone. Is there something we can do to prevent it?&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/186795?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 20:57:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:5c18494d-756f-4384-bb8b-21a0d1e1c5df</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Are you sure that the &amp;quot;Fatal error&amp;quot; is coming from&amp;nbsp;&lt;em&gt;nrf_drv_clock_lfclk_request?&amp;nbsp;&lt;/em&gt;I would recommend that you enable the DEBUG flag to get more details about the error in the log output. See &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/10729/my-device-is-freezing-and-restarting"&gt;this post&lt;/a&gt; and &lt;a href="https://www.youtube.com/watch?v=uP8RYgYGRvI"&gt;this video tutorial&lt;/a&gt; for more information about debugging.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/186596?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 08:50:55 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:33cfc00d-e8c2-4d26-8a5c-8039fb66056d</guid><dc:creator>Ali Rumane</dc:creator><description>&lt;p&gt;No, I am not using SoftDevice for my application as of now.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LFCLK request gives Fatal error</title><link>https://devzone.nordicsemi.com/thread/186595?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 08:48:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3fe0f843-6472-4561-8bfe-1aa23c1372cd</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Are you using a softdevice in your application? If you do, have you set the&amp;nbsp;SOFTDEVICE_PRESENT flag in your preprocessor symbols?&lt;/p&gt;
&lt;p&gt;Best regards,&lt;br /&gt;Jørgen&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>