[ntp:questions] Fwd: Re: NetBSD GPS/PPS using 4.2.6p3

David J Taylor david-taylor at blueyonder.co.uk.invalid
Fri Aug 26 06:30:52 UTC 2011

"A C" <agcarver+ntp at acarver.net> wrote in message 
news:4E56AF25.8080800 at acarver.net...
> I am willing to try anything so I gave it a shot but it didn't work.  I 
> still get a "kern PPS no signal" message if NMEA and PPS are both 
> enabled.  Using PPS alone with /dev/pps1 pointing to /dev/dtyb works 
> fine.  So there's still some type of contention going on.
> I'll still have to put a serial monitor on the line and try to figure 
> out what is being transmitted towards the GPS when the PPS driver is 
> active.

I noticed that when updating from ntpd 4.2.7p97 to ntpd 4.2.7p206, I 
noticed that the newer
version is sending some RS-232 data to the GPS soon after the PPS signal 
started.  I filed a bug report about this:


I don't know whether it's related to your issue, though, as I'm seeing 
this on Windows.


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