How to Upload/Download route information from/to a GPS unit

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VS2008

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Hi,

I have a project I am working on to create a Windows Forms applicating using VS2008 and C# on a Vista (64bit) machine.

I am reading the NMEA sentances from the GPS and able to create a Log etc of the waypoints and other data along the way.

I am stuck where and am in need of some direction or sample code on how to Read/Write Route information to/from the GPS unit. I belive that this information is held in some sort of file or DB.

I have not been able to locate a sample of this. My project is a stand-alone application where the user will NOT have any sort of internet connection when using this tool.

My thanks to all in advance...
SquireDude

Posted 22-Jul-10 8:25am

Squire Dude

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DaveAuld 22-Jul-10 14:31pm

Surely that would be totally dependant on what Make and Model of GPS unit you are using, would that not be useful information to have in your question?

Squire Dude 22-Jul-10 15:01pm

Dave,

At first I thought the same that it would depend on Make/Model. Actually most GPS units, especially the older ones, can have their Routes written & read from by everything I have been able to find details on.

All of the GPS's use the NMEA standard and are only just starting to encorporate the newer NMEA 2000 sentance structure.

I do not believe that the Route information is proprity again from what I have read so far. Including Garmin and Lowrance home web sites, but I have not found a tool to read/write to them or sample code to work with.

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DaveAuld · Answer 1 · 2010-07-22T10:27:00

Squire Dude,

See your comment, and yes fair point, but you are obviously working with a device, so knowing what it was may help the search!

You said you couldn't find any code to work with, but i have just been on the garmin developer site, and the specifications are there.

http://developer.garmin.com/web-device/[^]

Then there is also this link on the comm protocol.
http://www8.garmin.com/support/commProtocol.html[^]