On 27/10/07 12:00, Chuck wrote: > i cant use that driver. it requires kernel pps patch which i do not have > installed. in my initial searches they appeared to have stopped supporting > the patch. however, just as i was writing this, i looked at one more > reference which gave me a link to a site that has current patches so i am > going to be a bit busy setting up a pps kernel which i understand is the best > way to go.
This solves nothing, LinuxPPS only gives you a PPS signal - you already have that. You can use it with ntpd's GPS_NMEA refclock driver but then you don't get the NMEA data for your own purposes. The only way this will work is with a refclock driver that combines both and also gives you access to the NMEA data. You can't use the NMEA data on its own without discarding it when a fix is lost, I've had it return the time for the previous second *after* the pulse for the current second when the GPS has lost a position fix. -- Simon Arlott
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