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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>Does setting down SPIS_CSN_PIN for one SPI instance affect the other?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/24524/does-setting-down-spis_csn_pin-for-one-spi-instance-affect-the-other</link><description>Hello, 
 I have a brief question regarding to SPI, I have two instances of SPI, SPI0 and SPI1, I was wondering whether or not changing the value of SPIS_CSN_PIN to SPI0 would affect to SPI1 and viceversa.
Could you enlighten me ? 
 Also related, if</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 22 Aug 2017 08:38:52 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/24524/does-setting-down-spis_csn_pin-for-one-spi-instance-affect-the-other" /><item><title>RE: Does setting down SPIS_CSN_PIN for one SPI instance affect the other?</title><link>https://devzone.nordicsemi.com/thread/96539?ContentTypeID=1</link><pubDate>Tue, 22 Aug 2017 08:38:52 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a0f726a1-1ce9-465a-a94c-1b468576c6be</guid><dc:creator>J&amp;#248;rgen Holmefjord</dc:creator><description>&lt;p&gt;Which SDK version are you using? Are you using SPI slave or SPI master? If you have defined &lt;code&gt;SPIS_CSN_PIN&lt;/code&gt;, and assigned this as the CSN pin for both interfaces, it will affect both SPI0 and SPI1. You should use different CSN pins for the two instances.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>