Re: How to avoid 1Hz batching of 10Hz GPS fixes?

[Gary E. Miller]

Yo Chris!

On Mon, 21 Oct 2024 15:40:43 +0100
Chris Dew <chris.dew@thorcom.co.uk> wrote:

> Thanks for your help; as you suggested, it was a baud rate issue.

Glad to help.

> # Set ublox MAX10S to 115200 baud
> export UBXOPTS="-P 34.10"
> /usr/bin/ubxtool -f /dev/ttymxc1 -s 9600 -S 115200 && yes # This is
> only ever needed/successful once.

That is one way to do it.  But, depending on your exact MAX10S version
that may save in BBR, in flash, or not at all.

You should consider faster than 115200 for 10Hz.

> GPSD_OPTIONS="-n -s 115200"

Not required, but prevents auto-baud delays.

> # Get GPS fixes at 10Hz.  Even though gpsd starts before rc.local, a 
> delay is needed for it to work.
> ( sleep 15 ; /usr/bin/gpsctl -c 0.1 ) &

You prolly want to use ubxtool so you have much better control over
what is being sent.

RGDS
GARY
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