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

From: Gareth Roberts
Subject: Re: [Paparazzi-devel] UBX vs NMEA Protocol Inquiry
Date: Tue, 13 Mar 2012 11:07:10 -0000
User-agent: Opera Mail/11.61 (Linux)

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].


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