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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>Running TIMERS from 32khz clock?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/20028/running-timers-from-32khz-clock</link><description>Is there any way to run the TIMER peripherals off of the 32khz clock? We need to generate a 1khz PWM while the micro is asleep, and we really need to be able to shut down the HF clock to save power.</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 08 Feb 2021 13:11:48 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/20028/running-timers-from-32khz-clock" /><item><title>RE: Running TIMERS from 32khz clock?</title><link>https://devzone.nordicsemi.com/thread/293337?ContentTypeID=1</link><pubDate>Mon, 08 Feb 2021 13:11:48 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2626b52c-f282-4dc8-89dc-30901d8d467f</guid><dc:creator>Don</dc:creator><description>&lt;p&gt;Sorry for the late reply, but maybe this can help someone else who stumbles on this thread.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;You can&amp;#39;t connect the LF clock to the timer directly, but you can run the timer off the RTC, through the PPI.&amp;nbsp; On the nRF51 series this doesn&amp;#39;t require the HF clock.&amp;nbsp; On the nRF52 series, the PPI is sync&amp;#39;d to the 16 MHz clock.&amp;nbsp; My understanding is that this would run the HF clock only as many cycles as required.&amp;nbsp; This may not help much trying to run a 1 kHz PWM, but it allows running a real-time clock at low power.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Running TIMERS from 32khz clock?</title><link>https://devzone.nordicsemi.com/thread/77960?ContentTypeID=1</link><pubDate>Mon, 27 Feb 2017 21:02:32 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a57b6df2-e7be-48b5-b159-43a12ed9f632</guid><dc:creator>RK</dc:creator><description>&lt;p&gt;No there is no way to run the TIMERS off the 32kHz clock, that clock only runs the RTC peripherals.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>