Re: [External] Re: Time precision in gps_fix_t

[Kai Harrekilde-Petersen]

I have a 50Hz binary dump from my Skytraq GNSS lying around from a 
couple of years back (~14KB, so 250ish lines), but I have to admit that 
I don't recall the contents. Once my pi gets through the upgrade to 
'buster' I'll see if I can generate a proper 50Hz log for you (I have a 
UART sniffer on it).

What mode (NMEA vs binary) and how many seconds worth of data would you 
like?

Regards,

Kai

On 22 Jan 2020 21.28, Gary E. Miller wrote:
> Yo Greg!
>
> On Wed, 22 Jan 2020 12:54:12 -0500
> Greg Troxel <address@hidden> wrote:
>
> > "Gary E. Miller" <address@hidden> writes:
> >
> > > Yo Greg!
> > >
> > > On Wed, 22 Jan 2020 12:16:02 -0500
> > > Greg Troxel <address@hidden> wrote:
> > >   
> > > > All true, but Marco asked a perfectly fair question about gpsd
> > > > losing the subsecond time-of-fix.
> > > I see no evidence of that.  If that is true it is a serious bug.
> > I don't have the logs handy, but I was doing captures of the json data
> > (gpspipe -w) from an M8030 set to 2 Hz.   Adjacent lines had the same
> > timesstamps, both with 0 subsecond fix times.
> Multiple TPV with the same time stamp is not unusual.  Care to share your
> raw dumps?
>
> Regardless, getting time to 100 micro seconds from the serial data
> is unlikely by at least 2 orders of magnitude.
>
> > I'll see if I can generate this, but it should be easy for anyone to
> > set ublox 8 to 2, 5 or 10 Hz.
> So much to so, so little time...
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
>         address@hidden  Tel:+1 541 382 8588
>
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