[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-users] SemPiTernal - Bounding PPS uncertainty
From: |
David J Taylor |
Subject: |
Re: [gpsd-users] SemPiTernal - Bounding PPS uncertainty |
Date: |
Fri, 22 Apr 2016 08:34:13 +0100 |
From: Eric S. Raymond
We need the same information for the Uputronics HAT.
================================
The Uputronics delivers a 100 ms positive pulse with the leading edge at the
second boundary. It's correctly detected by the stock distribution of
Raspbian Wheezy and Jessie. There is no detection of the trailing edge.
sudo ppstest /dev/pps0 =>
trying PPS source "/dev/pps0"
found PPS source "/dev/pps0"
ok, found 1 source(s), now start fetching data...
source 0 - assert 1418933982.9980424, sequence: 970 - clear 0.0000000,
sequence: 0
source 0 - assert 1418933983.9980454, sequence: 971 - clear 0.0000000,
sequence: 0
This was shortly after booting.
HTH
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: address@hidden
Twitter: @gm8arv
Re: [gpsd-users] SemPiTernal - Bounding PPS uncertainty,
David J Taylor <=
Re: [gpsd-users] SemPiTernal - Bounding PPS uncertainty, Anthony Stirk, 2016/04/23
Re: [gpsd-users] SemPiTernal - Bounding PPS uncertainty, Chen Wei, 2016/04/23