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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>Change from ESB to Gazell</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/72059/change-from-esb-to-gazell</link><description>HI 
 We have a running product that we want to improve by moving from ESB to Gazell. 
 it should be an easy task, because it is only a simple main file that needs to be replaced, so I have taken as my starting point a Gazell example. 
 But I&amp;#39;ve run into</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 02 Mar 2021 07:54:16 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/72059/change-from-esb-to-gazell" /><item><title>RE: Change from ESB to Gazell</title><link>https://devzone.nordicsemi.com/thread/297047?ContentTypeID=1</link><pubDate>Tue, 02 Mar 2021 07:54:16 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e2f89577-8843-4797-8d7a-f2df9eb5c9bc</guid><dc:creator>panduro</dc:creator><description>&lt;p&gt;Thanks, the problem was in the&amp;nbsp;&lt;span&gt;sdk_config.h..&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Change from ESB to Gazell</title><link>https://devzone.nordicsemi.com/thread/296469?ContentTypeID=1</link><pubDate>Fri, 26 Feb 2021 09:56:59 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:19ed7c83-6354-4036-89ad-19f6da4378e9</guid><dc:creator>H&amp;#229;kon Alseth</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
[quote user=""]I get this error:&lt;br /&gt;. \ _ build \ nrf52840_xxaa.axf: Error: L6200E: Symbol TIMER0_IRQHandler multiply defined (by nrf_flywheel.o and nrfx_timer.o).[/quote]
&lt;p&gt;The gazell library has two options for which resources it uses, which is listed here:&lt;/p&gt;
&lt;p&gt;&lt;a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/gzll_02_user_guide.html#gzll_resources"&gt;https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/gzll_02_user_guide.html#gzll_resources&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;In your case, both gazell and nrfx_timer tries to use the same timer, NRF_TIMER0. You can fix this by changing the timer used by nrfx_timer (ie: NRF_DRV_TIMER_INSTANCE(1)).&lt;/p&gt;
&lt;p&gt;Be sure to enable the instance in your local sdk_config.h as well (define NRFX_TIMERx_ENABLED).&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Kind regards,&lt;/p&gt;
&lt;p&gt;Håkon&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>