[ntp:questions] Re: NTP server with Rubidium PPS

David L. Mills mills at udel.edu
Tue Oct 11 20:25:39 UTC 2005


John,

The PPS driver (refclock_atom.c) does indeed support fudge. I have tried 
to convince the various GPS driver authors to abandon per-driver PPS 
code in favor of using the atom driver, so all PPS stuff would be in one 
place, but I have not been successful. Therefore, each driver is on its own.

Dave

John Pettitt wrote:
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> Mauro Fiacco wrote:
> 
> 
>>I was expecting to be able to use a fudge factor (time1) in order tell
>>ntpd the offset of my pps source... but without much success.
>>
>>
> 
> 
> 
> There is your problem - the pps drivers don't correctly support fudge
> factors - if you search through the bug database @ ntp.org you'll fidn
> a patch I did for the NMEA driver PPS code to correctly support fidge
> factors - you could, I suspect, very easily apply the same code to the
> PPS driver and get the rtesult you are looking for.
> 
> John
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