On 16-04-2020 00:55, Hal Murray wrote: >> So no error messages about gps/NMEA. > >> NMEA(0) .GPS. 0 l 15 64 377 >> 0.0000 0.0000 0.0019 > > What's the line for that in your ntp.conf? Any fudge lines?
driftfile /var/lib/ntp/drift nts key /etc/letsencrypt/keys/0000_key-certbot.pem nts cert /etc/letsencrypt/csr/0000_csr-certbot.pem restrict default nomodify nopeer noquery restrict -6 default nomodify nopeer noquery restrict 127.0.0.1 restrict -6 ::1 restrict 192.168.10.0 mask 255.255.255.0 nomodify refclock nmea unit 0 mode 7 flag3 0 flag2 0 flag1 1 time1 0.00000006 time2 0.260 baud 4800 disable monitor server 192.168.10.98 minpoll 4 iburst server fd00:c0a8:a00:1::1 server time.cloudflare.com:1234 nts # TLS1.3 only server ntpmon.dcs1.biz nts server pi4.rellim.com nts server ntp1.glypnod.com nts server ntp2.glypnod.com nts server ntp.xs4all.nl server ntp2.xs4all.nl server ntp0.nl.net server ntp2.nl.net server keetweej.vanheusden.com server ntp.nmi.nl includefile /etc/ntp/crypto/pw keys /etc/ntp/keys statsdir /var/log/ntp/ logconfig =syncall -clockall We have some `time`in place. See the nmea refclock. Has been there for ages. > What does stty say for the baud rate? # stty < /dev/ttyS0 speed 4800 baud; line = 18; intr = <undef>; quit = <undef>; erase = <undef>; kill = <undef>; eof = <undef>; start = <undef>; stop = <undef>; susp = <undef>; rprnt = <undef>; werase = <undef>; lnext = <undef>; discard = <undef>; ignbrk -brkint -imaxbel -opost -onlcr -isig -iexten -echo -echoe -echok -echoctl -echoke > What sort of GPS device ? What baud rate is it using? Garmin GPS18X 4800 bps. > Try stopping ntpd and running cat /dev/whatever > That should show some NMEA sentences. It does, even with the ntpd running. > The 377 reach shows that something is working but the rest of the line shows > that it isn't. > > The NMEA driver is strange in that it tries to merge both the NMEA and PPS. > I > guess that's good if it works, but it makes debugging things like this > complicated. I could switch to a NMEA clock sans PPS and a dedicated PPS clock? > I run with 2 separate servers. Here is the chunk from my ntp.conf > > server 127.127.20.0 prefer path /dev/ttyAMA0 mode 0x010011 > fudge 127.127.20.0 flag1 0 # disable PPS > fudge 127.127.20.0 time2 0.600 # Fixup offset > server 127.127.22.0 # PPS signal, needs prefer > fudge 127.127.22.0 flag2 0 # Rising edge > > That turns into: > *NMEA(0) .GPS. 0 l 31 64 377 0.0000 10.9381 > 27.6977 > oPPS(0) .PPS. 0 l 30 64 377 0.0000 0.0570 > 0.0004 Like more or less what I understand from this part... Udo _______________________________________________ devel mailing list devel@ntpsec.org http://lists.ntpsec.org/mailman/listinfo/devel
