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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>nrf_drv_twi_enable(&amp;amp;m_twi) error</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/51047/nrf_drv_twi_enable-m_twi-error</link><description>Hi, 
 I am getting this error when enabling the twim instance. It initializes successefully but throws error when enabling it. 
 How can I troubleshoot it further to know the exact issue? What does this error code mean? 
 &amp;lt;error&amp;gt; app: ERROR 3735928559</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 16 Aug 2019 07:54:31 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/51047/nrf_drv_twi_enable-m_twi-error" /><item><title>RE: nrf_drv_twi_enable(&amp;m_twi) error</title><link>https://devzone.nordicsemi.com/thread/204410?ContentTypeID=1</link><pubDate>Fri, 16 Aug 2019 07:54:31 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e92bab66-dd9f-47c4-9c4d-8821ed97419c</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;On line 273 of nrf_twim.c, you can find a line checking if the driver is initialized:&lt;/p&gt;
&lt;p&gt;&lt;pre class="ui-code" data-mode="c_cpp"&gt;NRFX_ASSERT(p_cb-&amp;gt;state == NRFX_DRV_STATE_INITIALIZED);&lt;/pre&gt;&lt;/p&gt;
&lt;p&gt;Error&amp;nbsp;&lt;span&gt;3735928559 translates to 0xDEADBEEF in hex, which indicates an assert happened.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Looks like you have not initialized the driver before calling the enable function. Please have a look at the function&amp;nbsp;&lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrfx__twim.html#ga7d37936f8b5a85bad6a4526e90e73287"&gt;nrfx_twim_init&lt;/a&gt;().&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Best regards,&lt;br /&gt;Jørgen&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>