<?xml version="1.0" encoding="UTF-8" ?>
<?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>ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/98679/esb-prx-ack-payload-verify</link><description>Hello all, 
 I have a question about ESB protocol. When PTX sends payload to PRX, the ACK packet from PRX would tell PTX whether this payload is recieved by PRX correctlly. 
 If PRX wants to send data to PTX, it has to send the payload with ACK which</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 19 Apr 2023 07:33:49 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/98679/esb-prx-ack-payload-verify" /><item><title>RE: ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/thread/421164?ContentTypeID=1</link><pubDate>Wed, 19 Apr 2023 07:33:49 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:05ee3e91-988a-45d5-94ab-5162c804e2e9</guid><dc:creator>Priyanka</dc:creator><description>&lt;p&gt;Happy to help &lt;span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile"&gt;&amp;#x1f642;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;Please close the ticket in case of no further queries.&lt;/p&gt;
&lt;p&gt;Kind Regards,&lt;/p&gt;
&lt;p&gt;Priyanka&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/thread/421161?ContentTypeID=1</link><pubDate>Wed, 19 Apr 2023 07:29:40 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:df023345-8ac6-4b74-8221-ba808786d9d1</guid><dc:creator>TGuanLa</dc:creator><description>&lt;p&gt;Thanks！&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/thread/420753?ContentTypeID=1</link><pubDate>Mon, 17 Apr 2023 11:49:49 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4b0ba7f6-83ed-46f4-97f8-974215d1de21</guid><dc:creator>Priyanka</dc:creator><description>&lt;p&gt;Yes, it is done, if the CRC is enabled.&lt;/p&gt;
&lt;p&gt;-Priyanka&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/thread/420604?ContentTypeID=1</link><pubDate>Sat, 15 Apr 2023 07:26:53 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e76fb8de-bf87-4244-b37b-924d7800593e</guid><dc:creator>TGuanLa</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Thanks for your answer. I understand it now.&lt;/p&gt;
&lt;p&gt;I have one more question. Does PTX check the CRC bits when it receives ack_payload from PRX?&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ESB PRX ACK payload verify</title><link>https://devzone.nordicsemi.com/thread/420425?ContentTypeID=1</link><pubDate>Fri, 14 Apr 2023 08:54:32 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d8b8c2b9-9ab8-4581-bdd6-4fd314d5c2ee</guid><dc:creator>Priyanka</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;I know it might be a bit confusing, but I think we tend to think hard. &lt;span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f603.svg" title="Smiley"&gt;&amp;#x1f603;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;So when PRX sends an ack_payload to PTX, in case PTX receives this, then it will proceed to send the next payload. If not, PTX will re-transmit the previous payload, and then PRX knows that the ack_payload has not been received by PTX.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Also, there is a small counter in the meta data of the RF payload. And this is increased for a transmit, but if it&amp;#39;s a re-transmit, then the count remains the same. So that is also a way of understanding. &lt;span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile"&gt;&amp;#x1f642;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;Best Regards,&lt;/p&gt;
&lt;p&gt;Priyanka&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>