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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>Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/110172/unused-time-at-the-end-of-every-ble-interval-much-larger-than-expected</link><description>I&amp;#39;ve been working on maximizing BLE throughput between a nrf52840 dongle and a peripheral device. As I&amp;#39;ve tried to narrow down variables I&amp;#39;ve ended up with just using two nordic dev kits so I will just describe the issue I&amp;#39;m seeing with the dev kits.</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 26 Apr 2024 22:16:04 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/110172/unused-time-at-the-end-of-every-ble-interval-much-larger-than-expected" /><item><title>RE: Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/thread/480940?ContentTypeID=1</link><pubDate>Fri, 26 Apr 2024 22:16:04 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:75011f46-d756-47ae-8b05-3d380b21f1c4</guid><dc:creator>FerriteGiant</dc:creator><description>&lt;p&gt;bump&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/thread/479070?ContentTypeID=1</link><pubDate>Tue, 16 Apr 2024 23:36:19 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3deab3b0-a335-4854-806a-7f0e2f721953</guid><dc:creator>FerriteGiant</dc:creator><description>&lt;p&gt;Any more thoughts on this?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/thread/478602?ContentTypeID=1</link><pubDate>Fri, 12 Apr 2024 18:40:43 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4b62a270-a585-49de-8961-640029db348d</guid><dc:creator>FerriteGiant</dc:creator><description>&lt;p&gt;&lt;span&gt;I did some testing with the PHY set to 1Mbit, and the unused space is even worse. In theory I believe I should be able to fit 6 packets, but it is only sending 4 per interval&lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;img style="height:auto;max-width:600px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/1200x0/__key/communityserver-discussions-components-files/4/pastedimage1712947217974v1.png" /&gt;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/thread/478584?ContentTypeID=1</link><pubDate>Fri, 12 Apr 2024 14:43:58 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c17e35fb-b41a-4a28-9360-c317738b14e5</guid><dc:creator>FerriteGiant</dc:creator><description>&lt;p&gt;So, do you agree that my calculations are correct? Are you saying that this has nothing to do with connMaxTxTime? Are you implying that the time period reserved for post processing and scheduling is well over a millisecond?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;As far as I can tell there absolutely should be room for another packet in the interval.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Unused time at the end of every BLE interval much larger than expected</title><link>https://devzone.nordicsemi.com/thread/478581?ContentTypeID=1</link><pubDate>Fri, 12 Apr 2024 14:27:22 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:21aa93a8-eb76-4c1e-9096-a4a6ab383884</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi!&lt;/p&gt;
&lt;p&gt;You can try changing the connection interval, and see if you can see some improvement. In general, we end the connection event if we don&amp;#39;t have room for another full packet pair. And after the the last packet has been received, there is also some time reserved for post processing and scheduling.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>