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Re: Recommendation for GPS dongle


From: Gary E. Miller
Subject: Re: Recommendation for GPS dongle
Date: Thu, 30 Dec 2021 12:27:03 -0800

Yo Chris!

On Thu, 30 Dec 2021 12:12:22 -0800
Chris Kuethe <chris.kuethe@gmail.com> wrote:

> On Thu, Dec 30, 2021 at 11:19 AM Gary E. Miller <gem@rellim.com>
> wrote:
> > PPS was part of the original requirement.
> >
> > Why do they not output PPS?  It is just a one wire change!  
> 
> I would guess that they're using the native ublox chipset USB support
> which doesn't seem to support transporting timepulses over USB... at
> least, I see nothing in the manual that indicates that this is
> possible, only that it can be configured on specific pins.

Their web page says 115,200 baud.  The u-blox native USB has no
"speed".  So it has to be using a serial to USB converter.  Thus
easy to add the PPS pin to RI.

And why do the u-blox native USB parts not support PPS?  u-blox
lives in a bubble.

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

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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