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

[Gary E. Miller]

Yo Kai!

On Sat, 17 Mar 2018 16:53:35 +0100
Kai Harrekilde-Petersen <address@hidden> wrote:

> >> I have been hacking away on Gary's Skytraq (Venus6) driver to get
> >> it to support the binary mode as well as baudrate and update rate
> >> changes (-s and -c) with some success.  
> > Patches?  
> Patches are forthcoming. I have a few general patches (like max 
> baudrate) which I think would be best to send separately, and then
> there are quite some changes to the Skytraq driver. Maybe it would be
> best if I send things to you for review before delivering a "real"
> patch?

Yeah, small patches a few at a time is best.

> 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.

> Perfect, this was the missing bit. I looked through the proto driver, 
> and from the comments there, I decided to set both CLEAR_IS and
> REPORT_IS. From there I just had to fix an endianess bug on the
> time-of-week and now it is working pretty smoothly.

Great!

> One question: you've added the sky_msg_NN messages (DC, DD, DE, DF,
> E0, E2, E3) that I don't find in the documentation I have (Venus6:
> AN0003 v1.4.19, Venus8: AN0028 v1.4.42) and I don't see my Venus8
> emitting these messages. Could you send me any documentation you have
> on these?

AN0030_1.4.31.pdf, the Raw Measurement Data Extentions.  Basically the
RTK stuff.

https://navspark.mybigcommerce.com/content/AN0030_1.4.31.pdf


RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

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    "If you can’t measure it, you can’t improve it." - Lord Kelvin

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