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Re: [gpsd-dev] [PATCH] [log.chk] [TPV timing] implement $GPVTG message,

From: Gary E. Miller
Subject: Re: [gpsd-dev] [PATCH] [log.chk] [TPV timing] implement $GPVTG message, and proper timing for output "TPV" messages
Date: Thu, 17 May 2018 10:52:24 -0700

Yo teyrana!

On Thu, 17 May 2018 13:06:07 -0400
teyrana <address@hidden> wrote:

> We've implemented the $GPVTG message, and I wanted to get the list's
> opinion on what the proper behavior is for emitting messages on
> $GPVTG vs storing and waiting.  ( I've attached the .log.chk)

Interesting.  For example:


Looks like you have more adta in the GPVTG than you are putting in the ATT.

> The intended (/implemented) behavior was for VTG to populate, but not
> trigger output.

Yeah, that's a tricky part.  You want to wait until you have all the data
of a cycle before outputting, but no longer.  REPORT_IS, and friends, is
the key to how that works.

> p.s. I ran into the list's size limit, which is why I tried to
> inclcude p.p.s.

Pastebin works for larger files.

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

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