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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>No BLE signal at the antenna on nRF52832 custom board.</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/38240/no-ble-signal-at-the-antenna-on-nrf52832-custom-board</link><description>Hi. 
 I&amp;#39;m struggling with BLE example projects on the my custom board. 
 my board uses nRF52832-QFAA, 16MHz external crystal with no 32,768kHz optional RTC. 
 and I choose SDK 15.1v, softdevice 6.1v as development environment. 
 I uploaded ble_app_uart</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 06 Sep 2018 08:49:10 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/38240/no-ble-signal-at-the-antenna-on-nrf52832-custom-board" /><item><title>RE: No BLE signal at the antenna on nRF52832 custom board.</title><link>https://devzone.nordicsemi.com/thread/147509?ContentTypeID=1</link><pubDate>Thu, 06 Sep 2018 08:49:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:94e23c2c-7f5d-4c9c-b9d2-c71c3ef91ac6</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi&amp;nbsp;&lt;/p&gt;
&lt;p&gt;As mentioned in the comment from Eugene, the nRF52 only supports&amp;nbsp;32 MHz crystals. You should also change the capacitor that is connected to DEC 4 from 100 nF to 1.0 &amp;micro;F likewise the reference schematic that can be found&amp;nbsp;&lt;a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fref_circuitry.html&amp;amp;cp=2_2_0_52_6&amp;amp;anchor=pcb_guidelines"&gt;here&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Cheers&lt;/p&gt;
&lt;p&gt;Jared&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: No BLE signal at the antenna on nRF52832 custom board.</title><link>https://devzone.nordicsemi.com/thread/147465?ContentTypeID=1</link><pubDate>Thu, 06 Sep 2018 05:50:19 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e121187a-1924-48da-b54b-5ce133690292</guid><dc:creator>Daehyeon Kim</dc:creator><description>&lt;p&gt;then now I should buy new crystal. I&amp;#39;ll try your advice soon.&lt;/p&gt;
&lt;p&gt;&lt;span&gt;thank you!&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: No BLE signal at the antenna on nRF52832 custom board.</title><link>https://devzone.nordicsemi.com/thread/147460?ContentTypeID=1</link><pubDate>Thu, 06 Sep 2018 05:34:02 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c3cb5a60-4a64-4609-91bd-b5276bc9cc83</guid><dc:creator>Eugene Yu</dc:creator><description>&lt;p&gt;Hello Mr.Kim,&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;You are using wrong external crystal frequency.&lt;/p&gt;
&lt;p&gt;nRF52832 only supports 32MHz.&lt;/p&gt;
&lt;p&gt;Please refer to below link.&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/clock.html?cp=2_1_0_18#frontpage_clock"&gt;Clock - Clock control&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ref_circuitry.html?cp=2_1_0_52#concept_aqp_fd1_fq"&gt;Reference Circuitry&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks,&lt;/p&gt;
&lt;p&gt;Eugene&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>