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Re: Questions about decoding subframe messages (ublox F9P)

From: Gary E. Miller
Subject: Re: Questions about decoding subframe messages (ublox F9P)
Date: Tue, 26 May 2020 13:14:38 -0700

Yo Curtis!

On Tue, 26 May 2020 14:50:45 -0500
Curtis Olson <address@hidden> wrote:

> > You have too much data trying to fit into a small pipe.
> Ohhhhh, interesting.  I slowed the receiver output rate to 1hz and
> tried again, is this any better?
> $ ubxtool -P 27.10 -p STATUS -p CONFIG > ~/Downloads/ubxtool-F9P.txt

Much better.  Now the STATUS and CONFIG replies are there.

Next time "-v 2" makes it esier to read.

Notice this:

    version 0 nPorts 5 txErrors x0 reserved1 0
    protIds 0x0/1/5/ff (UBX/NMEA/RTCM3/None)
      Port: 0x100 (UART1)
       txPending 0 txBytes 73334073 txUsage 2 txPeakUsage 99

Overloaded tx buffer.

You also appear to be using ports 0x200, 0x300, 0x101 and 0x201?
What for?  How?

Overflowed tx buffer on UART1.  YOu might find the USB port works
faster.  Or not.

How did you enable the subframes?  And I do not mean UBX-RXM-SFRBX

You can see all your output messages enabled this way:

$ ubxtool -g CFG-MSGOUT,0,0,1200  -P 27.10

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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