Re: GPS Interface Software

[Brian Lloyd <brian@lcp.livingston.com>]

On Sat, 3 Apr 1999, John Peterson wrote:

> On Fri, Apr 02, 1999 at 01:54:49PM -0800, Brian Lloyd wrote:

> > The main problem is that there is no standardization other than the NMEA
> > output messages.  Any interface for uploading and downloading routes will
> > have to be customized for each vendors' box.
> > 
>    Yup, absolutely. Michael's idea is that it would be much better to have
> one single piece of software to do this, rather than a different one
> for each type of unit. Not an easy task, but possible in principle (just
> getting the protocol info is unquestionably the most difficult part since
> in most cases it will require reverse engineering).
> 
>    What I was looking for, was some feedback from owners of other units.
> Unit type, availability of software, and if the manufacturer has any
> concept of "fair use" and publishes the communication protocol for
> anyone to use, or takes the amoebic slime ball approach and zealously
> guards it.

My apollo SL-60 has the protocol(s) described in the manual (I was
surprised).  It isn't very detailed but it gets you a lot further along
than you might otherwise get.  What doesn't appear to be documented is the
protocol for uploading/downloading database info.

Brian Lloyd                                 Lucent Technologies
brian@lloyd.com                             3461 Robin Lane
(916) 676-6399 - voice                      Suite 1
(916) 676-3442 - fax                        Cameron Park, CA 95682

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