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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>Access custom data (actual payload) inside ESB payload</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/123334/access-custom-data-actual-payload-inside-esb-payload</link><description>Hi, 
 I am trying to modify ACK handling in ESB(nrf_esb.c, inside on_radio_disabled_rx()) but confused about accessing real payload data (PRX example, SDK17) 
 
 is used for receive by setting 
 It should hold total ESB payload defined as 
 I guess that</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 30 Jul 2025 14:42:46 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/123334/access-custom-data-actual-payload-inside-esb-payload" /><item><title>RE: Access custom data (actual payload) inside ESB payload</title><link>https://devzone.nordicsemi.com/thread/544120?ContentTypeID=1</link><pubDate>Wed, 30 Jul 2025 14:42:46 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:43b5153f-0895-47b9-bef6-cc5b009550b6</guid><dc:creator>astomi</dc:creator><description>&lt;p&gt;Well, eveything is byte size.Given that esb dpl uses LENGTH and S1 fields (promoted to 2 bytes), &amp;amp;m_rx_payload_buffer[2] will give me esb payload, not actual payload. App data would be&amp;nbsp;&amp;amp;m_rx_payload_buffer[7] then?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Access custom data (actual payload) inside ESB payload</title><link>https://devzone.nordicsemi.com/thread/544092?ContentTypeID=1</link><pubDate>Wed, 30 Jul 2025 12:50:36 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0c133414-b26b-405d-8415-28892c69988a</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi!&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;I don&amp;#39;t see the issue,&amp;nbsp;m_rx_payload_buffer is a uint8_t buffer, not a&amp;nbsp;nrf_esb_payload_t&lt;/p&gt;
[quote user=""]It should hold total ESB payload defined as[/quote]
&lt;p&gt;This is how the application layer sees the packet, it&amp;#39;s not actually sent over-the-air exactly like that.&amp;nbsp;&lt;/p&gt;
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