https://community.nxp.com/t5/Embedded-Software-and-Tools/AN12149-IEEE-1588-sync-not-working-well/m-p/1812294#M448 <P>Try to modify&nbsp;DEFAULT_PDELAYREQ_INTERVAL,&nbsp;<SPAN>DEFAULT_SYNC_INTERVAL, AP, AI</SPAN></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="daweiyou_0-1708480404937.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/264128i896FB92BE4E4B8FA/image-size/medium?v=v2&amp;px=400" role="button" title="daweiyou_0-1708480404937.png" alt="daweiyou_0-1708480404937.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">daweiyou_0-1708480404937.png</span></span></P> <P>&nbsp;</P> Wed, 21 Feb 2024 01:54:01 GMT daweiyou 2024-02-21T01:54:01Z https://community.nxp.com/t5/Embedded-Software-and-Tools/AN12149-IEEE-1588-sync-not-working-well/m-p/1804357#M440 <P>Hello</P><P>Board: MIMXRT1020-EVK (2 boards connected by patch ethernet cable)</P><P>Software:&nbsp;AN12149SW</P><P>1 configurated at Master</P><P>1 configured as Slave</P><P>Oscilloscope connected to J19-10 to observe PPS signal</P><P>Issue: PPS pulse will on occasion be ~50ns between master/slave device but after some time will lose sync and be off by ~500us and never recover. Resetting the board may temporarily fix the issue but drift /error will eventually come back.</P><P>&nbsp;</P><P>I would like to see if there is a fix to maintain sync between master and slave device</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 08 Feb 2024 19:41:46 GMT https://community.nxp.com/t5/Embedded-Software-and-Tools/AN12149-IEEE-1588-sync-not-working-well/m-p/1804357#M440 ypearson-bdai 2024-02-08T19:41:46Z https://community.nxp.com/t5/Embedded-Software-and-Tools/AN12149-IEEE-1588-sync-not-working-well/m-p/1812294#M448 <P>Try to modify&nbsp;DEFAULT_PDELAYREQ_INTERVAL,&nbsp;<SPAN>DEFAULT_SYNC_INTERVAL, AP, AI</SPAN></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="daweiyou_0-1708480404937.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/264128i896FB92BE4E4B8FA/image-size/medium?v=v2&amp;px=400" role="button" title="daweiyou_0-1708480404937.png" alt="daweiyou_0-1708480404937.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">daweiyou_0-1708480404937.png</span></span></P> <P>&nbsp;</P> Wed, 21 Feb 2024 01:54:01 GMT https://community.nxp.com/t5/Embedded-Software-and-Tools/AN12149-IEEE-1588-sync-not-working-well/m-p/1812294#M448 daweiyou 2024-02-21T01:54:01Z