[ntp:questions] Re: gps; why pps?
jkline
john at johnkline.com
Wed Mar 29 16:33:31 UTC 2006
> had my pulses been the opposite polarity to the ones I actually have, the NTP software
> might have locked to the trailing edge of the pulse 200ms after the leading edge, and
> rather than change that in hardware I could have set time1 to +0.200 (or whatever) to
> get the correct time.
Flag 2 controls which edge of the pulse to use. From the comments in
refclock_nmea.c:
* If flag2 is set, it will use the clear edge of the pulse.
John
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