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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>SAADC calibration doesn&amp;#39;t generate DONE events consistently</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/53060/saadc-calibration-doesn-t-generate-done-events-consistently</link><description>Hi, 
 I&amp;#39;m working with the SAADC on an NRF52832. I&amp;#39;m using the SAADC driver from SDK15.2. 
 I have a problem with the calibration routine because it&amp;#39;s generating DONE events inconsistently. Every time I get a done event, I queue a new buffer for conversion</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 15 Oct 2019 07:57:31 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/53060/saadc-calibration-doesn-t-generate-done-events-consistently" /><item><title>RE: SAADC calibration doesn't generate DONE events consistently</title><link>https://devzone.nordicsemi.com/thread/214975?ContentTypeID=1</link><pubDate>Tue, 15 Oct 2019 07:57:31 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0120b7a4-c08e-434e-9a4a-c8067edb6867</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;The SAADC driver should not generate a DONE event to the application during offset calibration, the completion of the calibration is indicated by the CALIBRATEDONE event. The comment for the function refers to the HW events &lt;a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/saadc.html?cp=3_0_0_5_22_8_6#register.EVENTS_DONE"&gt;DONE&lt;/a&gt; and &lt;a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/saadc.html?cp=3_0_0_5_22_8_7#register.EVENTS_RESULTDONE"&gt;RESULTDONE&lt;/a&gt;, which are not used at all by the SAADC driver. The driver should only generate a DONE event to the application when an &lt;a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/saadc.html?cp=3_0_0_5_22_8_5#register.EVENTS_END"&gt;END event&lt;/a&gt; is generated by the SAADC peripheral HW.&lt;/p&gt;
&lt;p&gt;Best regards,&lt;br /&gt;Jørgen&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>