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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>nRF52832 Power on Reset and nRESET</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/28314/nrf52832-power-on-reset-and-nreset</link><description>in my circuit, it takes 17ms for VCC_NRF to go up from 0 to 1.7V and reach 3.0V, but nRESET PIN does NOT to go up to VCC_NRF.
what is the potential cause of this problem? 
 here is the waveform for VCC_NRF and nRESET</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 05 Nov 2019 02:23:53 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/28314/nrf52832-power-on-reset-and-nreset" /><item><title>RE: nRF52832 Power on Reset and nRESET</title><link>https://devzone.nordicsemi.com/thread/218392?ContentTypeID=1</link><pubDate>Tue, 05 Nov 2019 02:23:53 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:50b43bd2-3d53-487d-866a-afa8d6525592</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Turned out to be a DC/DC loading issue. 2.2uF was stuffed instead of a 100nF for the DEC caps. Seems like some unknown inductors were also stuffed.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52832 Power on Reset and nRESET</title><link>https://devzone.nordicsemi.com/thread/218385?ContentTypeID=1</link><pubDate>Tue, 05 Nov 2019 00:57:25 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:ad560592-03a7-4965-bc2b-a923ec2a06f2</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/members/ogura-isao"&gt;ogura&lt;/a&gt; did you ever determine the cause of this? Have a similar power up issue on a board with an LDO that takes almost 1ms to get to minimum 1.76V&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52832 Power on Reset and nRESET</title><link>https://devzone.nordicsemi.com/thread/111792?ContentTypeID=1</link><pubDate>Wed, 13 Dec 2017 16:00:08 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:88a8cddb-d797-46b3-b348-5cf02c867577</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Does the nRESET signal never go high?&lt;/p&gt;
&lt;p&gt;Are you measuring on pin 21 ?&lt;/p&gt;
&lt;p&gt;Is anything connected to pin 21?&lt;/p&gt;
&lt;p&gt;What SDK version are you using? What example in the SDK are you testing this with?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>