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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] PPS correction not being applied
- From: Fabian Schörghofer <fabian.schoergi@xxxxxxxxx>
- Date: Fri, 24 Feb 2017 16:57:15 +0100
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What does your chrony.conf look like now?
I have a similar problem, (also using gpsd and Raspberry Pi with GPIO-PPS).
Am 24.02.2017 16:53, schrieb Brian Gieryk:
> Bill, PPS is being referenced as GPS now.
>
> Miroslav, that was initial fix.
>
> Now, NMEA offset is +198ms std dev is 7301us
>
> GPS (PPS) is offset +23 us std dev is 19us.
>
> Brian
>
> Sent from my iPhone
>
>> On Feb 24, 2017, at 08:48, Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:
>>
>>> On Fri, Feb 24, 2017 at 08:44:02AM -0700, Brian Gieryk wrote:
>>> Did as suggested, and seems to be working. NMEA is showing +/- 2599 us and GPS (PPS) is showing +/- 1831 us.
>>
>> 1800 microseconds is not that good for a PPS. Usually it's just a few
>> microseconds, or better. What does the "chronyc sourcestats" command
>> print?
>>
>> --
>> Miroslav Lichvar
>>
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