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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>Switching from TX to RX mode</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/123467/switching-from-tx-to-rx-mode</link><description>Dear Nordic support service, 
 I am currently using nRF21540 with nRF52840 and nRF5_SDK_17.1.0. 
 I am able to transmit and receive, but I am not able to switch from RX to TX mode. 
 Checking the code, I see that when a TX is needed, the following routine</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 05 Aug 2025 13:13:59 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/123467/switching-from-tx-to-rx-mode" /><item><title>RE: Switching from TX to RX mode</title><link>https://devzone.nordicsemi.com/thread/544646?ContentTypeID=1</link><pubDate>Tue, 05 Aug 2025 13:13:59 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:09ad47ea-c78a-4954-94e4-164f6fdce1b7</guid><dc:creator>michele sponchiado</dc:creator><description>&lt;p&gt;Hi, Einar!&lt;/p&gt;
&lt;p&gt;Many thanks for your reply!&lt;/p&gt;
&lt;p&gt;I was already trying using the power down method, so I will check first this path; I am using 802.15.4 BTW&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Switching from TX to RX mode</title><link>https://devzone.nordicsemi.com/thread/544610?ContentTypeID=1</link><pubDate>Tue, 05 Aug 2025 11:53:32 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:409599d9-a610-44ed-b6a9-04873dacd4c5</guid><dc:creator>Einar Thorsrud</dc:creator><description>&lt;p&gt;Hi Michele,&lt;/p&gt;
&lt;p&gt;The driver does not supprot switching between Tx and Rx (neither way), so I believe you need to ower down first before switching state.&lt;/p&gt;
&lt;p&gt;One thing, though. The supportt for the&amp;nbsp;nRF21540 in the nRF5 SDK is very limited (it can for instance not be used with Bluetooth). So if possible, I would consider the nRF Connect SDK (for this an other reasons).&lt;/p&gt;
&lt;p&gt;Best regards,&lt;/p&gt;
&lt;p&gt;Einar&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>