[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

 * If flag2 is set, it will use the clear edge of the pulse.


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