[time-nuts] Getting ntpd to work with Garmin LVC-18x and Ubuntu 16.04..

Gary E. Miller gem at rellim.com
Sat Jul 16 17:03:43 EDT 2016

Yo Howard!

On Sat, 16 Jul 2016 16:32:20 -0400
"Howard Leadmon" <howard at leadmon.net> wrote:

>  I have also run ppstest, and show a pps stream, granted the weird
> thing is it seems like I get two lines of the same output ever second
> so not sure what is up there.

One is the assert edge of the PPS, the other is the clear edge.

> source 0 - assert 1468700910.979003708, sequence: 44155 - clear 1468700910.078946163, sequence: 516263 
> source 0 - assert 1468700910.979003708, sequence: 44155 - clear 1468700911.078993120, sequence: 516264

So, the assert happened at 1468700910.979003708
And the clear happend at   1468700911.078993120

So about a 200 milliSecond pulse.

>  I also loaded up gpsd thinking it might help, but it didn't seem to
> resolve the issue.   

You gotta change your ntpconfig to use dirver 28, not driver 20, with gpsd.

Only one of ntpd and gpsd should use the serial port at the same time.

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588
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