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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>Unusual App Timer Problem</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/38821/unusual-app-timer-problem</link><description>Hi there, 
 I&amp;#39;ve got something usual happening with the App Timers in my application, hopeing for some advice on how to track this one down. 
 There is one part in my code where an external event (handler) powers up and external IC, then starts a single</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 26 Sep 2018 04:54:35 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/38821/unusual-app-timer-problem" /><item><title>RE: Unusual App Timer Problem</title><link>https://devzone.nordicsemi.com/thread/150358?ContentTypeID=1</link><pubDate>Wed, 26 Sep 2018 04:54:35 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3a936420-428c-48f4-884b-a285eeeb8b39</guid><dc:creator>Hein</dc:creator><description>&lt;p&gt;Hi Jorgen, just to confirm, switching all code as-is to app_timer2.c looks to have completely fixed the problem, thanks!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unusual App Timer Problem</title><link>https://devzone.nordicsemi.com/thread/150023?ContentTypeID=1</link><pubDate>Mon, 24 Sep 2018 11:34:25 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:925e3ad5-2285-4320-850d-1155c87ae261</guid><dc:creator>Hein</dc:creator><description>&lt;p&gt;Awesome, thanks Jorgen, yes, that certainly sounds like the same problem! Yes, this is a fairly large application with many app timers, it is likely that I am starting at least 1 timer with a timerout &amp;gt; 256 seconds. I will try the app_timer2 implementation first. Will report back with my results tomorrow morning. Thanks!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unusual App Timer Problem</title><link>https://devzone.nordicsemi.com/thread/150005?ContentTypeID=1</link><pubDate>Mon, 24 Sep 2018 11:08:42 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:b052ab82-61ed-4af8-af1c-e0d31503be29</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Are you running multiple timers in your application? Your symptoms sound like they could be caused by this &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/22524/app_timer-trigger-immediatly-on-sdk13"&gt;known bug in app_timer&lt;/a&gt;&amp;nbsp;(it is mentioned in&amp;nbsp;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/34155/what-are-sdk-15-x-0-known-issues"&gt;SDK 15.x.0 known issues&lt;/a&gt; thread).&lt;/p&gt;
&lt;p&gt;I don&amp;#39;t know which SDK version you are using, but in SDK 15.x.0, there is a new implementation of app_timer, app_timer2. You can try &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/38371/timer-intermittently-finishes-too-soon-rare-conflict-between-app_timer-and-ble_advertising/148186#148186"&gt;changing to this new version&lt;/a&gt; and see if this solve the issue.&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>