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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>Wake-up from deep sleep in absence of LFCLK</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/58898/wake-up-from-deep-sleep-in-absence-of-lfclk</link><description>Hi, 
 I am using an external RCT module to provide 32.768kHz square wave for the nRF52832 instead of an external crystal oscillator. When the system goes to deep sleep mode, the RTC module mode changes to timekeeping mode and the output clock is turned</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 10 Mar 2020 10:01:22 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/58898/wake-up-from-deep-sleep-in-absence-of-lfclk" /><item><title>RE: Wake-up from deep sleep in absence of LFCLK</title><link>https://devzone.nordicsemi.com/thread/239036?ContentTypeID=1</link><pubDate>Tue, 10 Mar 2020 10:01:22 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2919371b-7ee7-4bb1-b01b-2083f764d215</guid><dc:creator>Einar Thorsrud</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;You can use a &lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/gpio.html?cp=4_2_0_19#concept_zyt_tcb_lr"&gt;GPIO&lt;/a&gt; input in sense mode to wake up from system off (deep sleep). See &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/19882/configuration-of-gpio-to-wake-up-from-system-off/77381#77381"&gt;this post&lt;/a&gt;&amp;nbsp;for details.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>