Yo VINCENT/MICHELLE!

On Mon, 16 Mar 2026 15:49:27 -0500 (CDT)
VINCENT/MICHELLE REINHARDT <[email protected]> wrote:

> > If so, the RS-232 above is wrong, should be USB.  
> 
> Here is the correct link to the evaluation board, and yes the
> evaluation board is USB ( there is a USB to UART converter on the
> board but the module is UART).
> 
> https://www.st.com/resource/en/user_manual/um2335-evbliv3f--evbliv3r-evaluation-board-stmicroelectronics.pdf

Good. I'll fix the interface, and add the URL.

> > Can you supply a raw serial capture from the device runnon on
> > factory deffaults?  Just reset the device to factory defaults,
> > start gpsd, and grab a copy of the raw this way:
> > 
> >         gpspipe -R -w 30 > LIV3.raw  
> 
> Did you mean this command:  gpspipe -R -x 30 -o LIV3.raw
> 
> -w is JSON data

Yeah, my mistake.  -x.

> Please see attached.

Looks good.  I'll add it as a regression test.

> 
> > I'm unaware of any PPS that GPSD does not work fine with.  Does
> > yours do something seriously weird??  Or is the only way to get the
> > PPS to read the LED?  Is the PPS not on the USB??  
> 
> Sorry to answer your questions with more questions :)

It happens.

> There is is only D+/D- on USB as far as I know so how would 1PPS get
> to the computer?

If the PPS in from the GNSS receiver is connected to the DCD pin on the
serial-to-USB chip, then the host sees DCD toggle, and can use DCD as
PPS.  Accurate to about 1 ms.  Better than nothing.

> > > ST Confidential  
> > 
> > Seriously?  How are we to publish a product listing and keep it
> > confidential?  So, no, no confidential.  
> 
> Sorry about that, the confidential email was a setting that was
> accidentally turned on my work email. Please disregard.

Disregarded.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        [email protected]  Tel:+1 541 382 8588

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