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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>SPI bus: glitch on MOSI between nCS and SCKSPI</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/80801/spi-bus-glitch-on-mosi-between-ncs-and-sckspi</link><description>Good day, 
 We are trying to interface TCAN4550 to nRF52840 over SPI, and found that sometimes TCAN throws SPI error (underflow of read/write). Looking further, we found that this always happens after MOSI having a glitch between nCS low and first SCK</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 19 Oct 2021 13:50:48 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/80801/spi-bus-glitch-on-mosi-between-ncs-and-sckspi" /><item><title>RE: SPI bus: glitch on MOSI between nCS and SCKSPI</title><link>https://devzone.nordicsemi.com/thread/334918?ContentTypeID=1</link><pubDate>Tue, 19 Oct 2021 13:50:48 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:64f68102-ae3e-4baa-8ef3-74c21f6a5604</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
[quote user=""]how to get rid of that glitch on MOSI?[/quote]
&lt;p&gt;&lt;span&gt;Is the nRF52840 the SPI slave or the master? What revision of the IC are they using, and what instance of the SPI/M/S peripheral are they using?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;regards&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Jared&amp;nbsp;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>