Re: [Paparazzi-devel] UBX vs NMEA Protocol Inquiry

[Gareth Roberts]

Hi Jake,

What GPS do you have?  Maybe you could create a binary driver for it  
instead?  There are already drivers for UBlox, MediaTek and SkyTraq.
If your GPS is supports one of the popular binary protocols (SIRF for  
example) it could be really useful, and possibly simpler than getting the  
NMEA parser working.

Getting NMEA working for a single case GPS (or even vendor) should be  
possible, but for more information on why it's very difficult to write a  
general NMEA parser see [2].

> I do have to get a NMEA GPS working since I don't have the luxury of  
> using an oddball, esoteric GPS protocol.

You may be interested to know the GPS for the latest version of ardupilot  
actually outputs an ardupilot specific protocol, only available on GPSs  
purchased from their store [1].

Cheers,
Gareth

[1] -  
https://store.diydrones.com/MediaTek_MT3329_GPS_10Hz_Adapter_Basic_p/mt3329-02.htm
[2] - http://esr.ibiblio.org/?p=801