Re: [gpsd-dev] Skytraq binary support for Venus838

[Kai Harrekilde-Petersen]

Hi Gary,


On 18-03-2018 02:12, Gary E. Miller wrote:
> Yo Kai!
>
> Yeah, small patches a few at a time is best.

Please find two patches attached for serial.c and driver_nmea0183.c - 
these are really independent of the Skytraq changes I have.
I decided to make the NMEA change the minimum possible, as I have no 
idea of where to stash & use the data from the DTM and GRS sentences. If 
someone would like to try their hands on it, I've got plenty of NMEA 
data to share.

> > Yeah, it is possibly the fastest commercial GPS you can get your
> > hands on. I plan to use it as a laptimer/datalogger on my motorcycle,
> > together with logging accelerations and rotational angles using the
> > 9-DOF MPU-9250 chip. This is quite different from 'normal' use so I'm
> > not sure if I'll use gpsd in the end or not.
> Past time that gpsd had some IMU support, not sure exactly how to do it.

There is an RTKlib on github that I'll be taking a look at. The 'trick' 
is to use a Kalman filter to merge the accell/gyro data together with 
the GPS readings.

> AN0030_1.4.31.pdf, the Raw Measurement Data Extentions.  Basically the
> RTK stuff.
>
> https://navspark.mybigcommerce.com/content/AN0030_1.4.31.pdf
 Thanks again. Turns out that there is a newer v1.4.33 from June 2017:

https://navspark.mybigcommerce.com/content/AN0030_1.4.33.pdf

Best regards,

Kai

0001-On-Linux-systems-accept-try-up-to-921600-baud.patch
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0002-processPSTI-silently-ignore-003-sentences.patch
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