[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-users] UBX-TIM-TP on F9T?
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-users] UBX-TIM-TP on F9T? |
Date: |
Sat, 5 Oct 2019 10:53:06 -0700 |
Yo Anders!
On Sat, 5 Oct 2019 14:35:40 +0300
Anders Wallin <address@hidden> wrote:
> > the latest from gitlab (3.19-661) does build OK for me.
> > I will try to look for the PPS message with an F9T later today and
> > report what I find..
> >
>
> I tried, but could not get a PPS-message from gpsd.
What did you try?
> Using u-center (which runs on wine) I do see the qErr value, and
> u-center can plot a graph of it over time which shows a saw-tooth
> from -4ns to +4ns, as expected.
You can't run u-center while gpsd is running, and gpsd reprograms
the receiver, so that is not a good test.
> ubxtool does show the UBX-TIM-TP message OK.
ubxtool standalone, or while gpsd is running? gpsd reprogramms the
receiver so the only good test is when gpsd is running.
> the output from my python client is below.
Not helpful with no code.
What I asked for is the config.log and the output when you built
gpsd. Many config options to get wrong.
> This might be tied to having a separate pps-device (?), but I don't
> have (or need) a separate /dev/pps0 device, I would just want to log
> the qErr value.
What model receiver? How is it connected? Full serial port (RS-232),
partial serial port (Raspberry Pi), I2C, USB? They all connect PPS is
different ways.
> In time-transfer, the electrical PPS output from the receiver is used
> for other things.
But how does it get to gpsd? No PPS signal into gpsd, then no PPS JSON
out.
> -------python client output----------
[...]
> u'/dev/ttyUSB0',
Uh, oh. Is your PPS really on USB? Not good. Are you 100% sure the
PPS signal is being carried on the USB? If so, how do you know?
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
Veritas liberabit vos. -- Quid est veritas?
"If you can't measure it, you can't improve it." - Lord Kelvin
pgpDpGa4jaVUV.pgp
Description: OpenPGP digital signature
- [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/03
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/03
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/03
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/03
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/03
- Message not available
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/04
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/05
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/05
- Re: [gpsd-users] UBX-TIM-TP on F9T?,
Gary E. Miller <=
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/06
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/06
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/08
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/08
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Anders Wallin, 2019/10/09
- Re: [gpsd-users] UBX-TIM-TP on F9T?, Gary E. Miller, 2019/10/09