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Re: [gpsd-dev] A detail in your ntpoffset script
From: |
Eric S. Raymond |
Subject: |
Re: [gpsd-dev] A detail in your ntpoffset script |
Date: |
Tue, 22 Oct 2013 19:22:40 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Beat Bolli <address@hidden>:
> This is correct, but I was assuming that the PPS doesn't have to be
> fudged, because it is directly connected to the kernel PPS via an
> interrupt. I have a fudge offset only on the GPS unit, and none on the
> PPS. This seems to make sense to me, because only the NMEA stuff is
> delayed by the RS232 transmission.
Ahh. OK, I think I get it. So step 5 should read like this, then?
5. Adjust the "time1" value for unit 0 of your ntp.conf (the non-PPS
channel) by subtracting the average offset from step 4.
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
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- Re: [gpsd-dev] A detail in your ntpoffset script, (continued)
Re: [gpsd-dev] A detail in your ntpoffset script, Beat Bolli, 2013/10/22
Re: [gpsd-dev] A detail in your ntpoffset script, Gary E. Miller, 2013/10/22
Re: [gpsd-dev] A detail in your ntpoffset script,
Eric S. Raymond <=
Re: [gpsd-dev] A detail in your ntpoffset script, Hal Murray, 2013/10/23
Re: [gpsd-dev] A detail in your ntpoffset script, Gary E. Miller, 2013/10/23
Re: [gpsd-dev] A detail in your ntpoffset script, Dave Platt, 2013/10/23
Re: [gpsd-dev] A detail in your ntpoffset script, Gary E. Miller, 2013/10/23
Re: [gpsd-dev] A detail in your ntpoffset script, Eric S. Raymond, 2013/10/23
Re: [gpsd-dev] A detail in your ntpoffset script, Harlan Stenn, 2013/10/23