Re: [Gpsbabel-code] eTrex and message 0x23

[Andre-John M. <aj...@sy...>]

At the moment I am just happy to support the eTrex (the one I have) and possibly hand off anything I don't support to GPS Babel.

BTW I am having a little trouble navigating their site. Do you happen to know off hand the URL I should be looking at?

Andre

Robert Lipe <rob...@us...> wrote:
> 
> > Thanks for that information. I had been led to believe that Garmin
> > hadn't published their protocol. I will definetly take a look.
> 
> That used to be true.   Somewhere just after the turn of the decade
> they started publishing a spec.  It's been getting better over time.
> 
> > If I am looking to 'reinvent the wheel', its not that I think GPS
> > Babel does a bad job. Quiet to the contrary I think it does a great
> 
> I don't know how many devices you're looking to support, and I won't
> discourage you, but it's a crazy expensive effort to support all their
> devices. IIRC, there's something like 23 different types of waypoints
> alone. Routes, tracks, and device discovery are adventures of their
> own. There are three *different* physical transports. There are no
> device simulators, and there are even twists within the "same" protocol
> strains. (For example, a 276C speaks D110's over the bulk/interrupt
> transport, just like, say, a 2720. The 2720 will never switch between
> the bulk and interrupt during a single packet interchange but the 276
> and 296 will - sometimes.
> 
> Good luck.
> RJL
> 
> 
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