Re: GPS drivers (was Re: [PATCH v2 0/9] Serial slave device bus)

From: Andy Shevchenko
Date: Fri Jan 20 2017 - 11:20:05 EST


On Fri, 2017-01-20 at 16:26 +0100, Linus Walleij wrote:

> > Now, NMEA knows about some of the complexity (not AGPS), but gets
> > the
> > details wrong. In particular, it would be good to have error
> > estimates
> > and velocities from the same moment you get position estimates.
>
> NMEA if it is this:
> https://en.wikipedia.org/wiki/NMEA_0183
>
> Seems to be a high-level format such as XML or CSV or any other
> $FAVOURITE_ASCII_TRANSPORT format.

Not exactly. It depends on device settings.
Old GPS I used to play with have AT command to switch between ASCII and
binary format. Some of the devices might use non-standard binary
protocols (however, representable as NMEA), etc.

--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy