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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>TWI doesn&amp;#39;t get past event check loop</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/63256/twi-doesn-t-get-past-event-check-loop</link><description>I&amp;#39;m working on TWI with nrf52832 dev board, using examples from SDK 16. Here&amp;#39;s the code: 
 
 I see no activity on the logic analyser and the application gets stuck in the TX while loop. 
 I get similar results when running the &amp;quot;TWI scanner&amp;quot; example. The</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 03 Jul 2020 09:26:21 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/63256/twi-doesn-t-get-past-event-check-loop" /><item><title>RE: TWI doesn't get past event check loop</title><link>https://devzone.nordicsemi.com/thread/258263?ContentTypeID=1</link><pubDate>Fri, 03 Jul 2020 09:26:21 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:66326b01-c2a2-4cbc-9f5e-642935009be5</guid><dc:creator>SKR</dc:creator><description>&lt;p&gt;Thanks for replaying, Kenneth!&lt;/p&gt;
&lt;p&gt;I did as you suggested. As I unplugged the SDA line&amp;nbsp;from the sensor and run the example, the activity was there.&lt;/p&gt;
&lt;p&gt;It turned out I was missing external pull up resistors on the SDA and SCL lines.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TWI doesn't get past event check loop</title><link>https://devzone.nordicsemi.com/thread/258042?ContentTypeID=1</link><pubDate>Thu, 02 Jul 2020 09:51:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:7638886d-f79a-40cc-9b7f-501dabb79bde</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Have you tried running the&amp;nbsp;\examples\peripheral\twi_scanner\ example &amp;#39;as-is&amp;#39; on an nRF52-DK with no sensor attached? Then you should see activity on the&amp;nbsp;ARDUINO_SCL_PIN (27) and&amp;nbsp;ARDUINO_SDA_PIN (26) by default.&lt;/p&gt;
&lt;p&gt;Kenneth&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>