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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>PWM issue?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/90824/pwm-issue</link><description>Hello all, 
 I am using the PWM and TIMER drivers on the nRF52DK board among other drivers like TWI and I get this error when trying to compile, eg. today 
 It can be seen from the compile output that apparently something is wrong here : 
 &amp;quot; nrf_drv_timer_extended_compare</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 10 Aug 2022 13:10:31 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/90824/pwm-issue" /><item><title>RE: PWM issue?</title><link>https://devzone.nordicsemi.com/thread/381028?ContentTypeID=1</link><pubDate>Wed, 10 Aug 2022 13:10:31 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:9d19e236-41f1-40f4-9473-7de6d028217c</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Undefined references usually means that the compiler isn&amp;#39;t able to find the source file where the function is defined. Go to project settings and double check that the path to the source file that contains the function definition has been included:&lt;/p&gt;
&lt;p&gt;When the configuration in the top left is set to DEBUG then the &amp;quot;User Included Directories&amp;quot; should be set to inherits.&lt;/p&gt;
&lt;p&gt;When you change it to Common, then the&amp;nbsp;&lt;span&gt;User Included Directories&amp;quot; should have the path to the source file containing&amp;nbsp;the function definition.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
[quote user=""]BUT! Why it is sometimes working with the same code?&amp;nbsp;Is there something wrong with the &amp;quot;linker&amp;quot;? For example, if I delete this project, and copy the same project from elsewhere, yes I did a safe copy, then it works :)&amp;nbsp;[/quote]
&lt;p&gt;&lt;span&gt;I&amp;#39;m not sure why this would fix it. What do you mean copying it from elsewhere? Is it exactly&amp;nbsp;the same project?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;regards&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Jared&amp;nbsp;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: PWM issue?</title><link>https://devzone.nordicsemi.com/thread/380820?ContentTypeID=1</link><pubDate>Tue, 09 Aug 2022 11:40:47 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:119fc1f2-6050-43ab-b1a4-36d2c06f522c</guid><dc:creator>MuRa</dc:creator><description>&lt;p&gt;I have noticed the configuration build properties are changed from Debug to Release&amp;nbsp;it compiles ok!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Any ideas why?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Best.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>