[ntp:questions] Using parse driver rather then nmea driver?
hal-usenet at ip-64-139-1-69.sjc.megapath.net
Mon Oct 20 18:09:04 UTC 2008
>I have a NMEA GPS device that outputs the correct strings. However
>due to where I have to position the device it doesn't always have a
>lock on three satellites and then goes into Void mode. However the
>time values are still being collected (It always sees at least one
Which particular NMEA unit are you using?
>Is it possible to write a parse (127,127,8,0) driver to read only the
>time values and ignore the void message and thereby make it the
>stratum 0 source?
If your unit is doing what I think it's doing, you probably don't
want to do that. The GPS unit is telling you that it doesn't really
know the time, but its best guess is xxxx. Why would you want to
use time that's known not to be good? It would work OK if you
didn't have to coast for very long. But then your PC can coast
just as well for short times, maybe even better.
These are my opinions, not necessarily my employer's. I hate spam.
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