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On Friday, September 6, 2024 at 04:10:32 PM PDT, Hal Murray <halmurray@sonic.net> wrote:
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<div><div dir="ltr"><br></div><div dir="ltr"><a href="mailto:penninojim@yahoo.com" rel="nofollow" target="_blank">penninojim@yahoo.com</a> said:<br></div><div dir="ltr">>From syslog:<br></div><div dir="ltr">> ntpd[35421]: REFCLOCK: refclock_params: kernel PLL (hardpps, RFC 1589) not implemented<br></div><div dir="ltr">> ntpd[35421]: REFCLOCK: NMEA(0) set PPSAPI params fails <br></div><div dir="ltr"><br></div><div dir="ltr">The PPS stuff needs something like<br></div><div dir="ltr"> ldattach 18 /dev/ttyS0 # gets /dev/pps0<br></div><div dir="ltr">And that has to be done before ntpd gets started.</div><div dir="ltr"><br></div><div dir="ltr" data-setdir="false">Like I said, this has been working just fine for MANY years until the os switched the ntp package from legacy to ntpsec.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Part of the configuration is, and has been for years:</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><span>ldattach -8 -n -s 9600 PPS /dev/ttyS0</span></div><div dir="ltr" data-setdir="false"><div>setserial /dev/ttyS0 low_latency<br><br></div></div><div dir="ltr"><br></div><div dir="ltr">What OS/Distro are you using?</div><div dir="ltr"><br></div><div dir="ltr" data-setdir="false">Ubuntu 24.04.1 LTS with a low latency kernel.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">FYI I also changed the ntp.conf from the legacy method of psuedo ip addresses to the named method:</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><span>refclock nmea mode 16 minpoll 4 iburst time1 -0.0007 flag1 1 flag2 0 flag3 1</span></div><div dir="ltr" data-setdir="false"><span><br></span></div><div dir="ltr" data-setdir="false"><span>and it made no difference what so ever.<br></span></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div></div>
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