GPS Garmin 76CSX using USB

[Cmag58]

I would like data form GPS Garmin model 76CSX using USB. I created a port as shown in   (http://zone.ni.com/devzone/cda/tut/p/id/4478) but when I use MAX it is not possible to read the GPS.

Does somebody know how to do this?

[Dennis_Knutson]

Why did you use the driver wizard? Did you get the low level USB RAW protocol from Garmin? If not, undo all that you did and restore the USB driver from Garmin. Using the wizard is not something you should be doing unless you know exactly what you are doing.

Have you read the manual? It does have a serial port. It's not clear if the USB is programmed to also behave as one. Plug it in and if a new serial port is listed in MAX or windows device manager, you can use that, too.

[NathanT]

There is also an existing LabVIEW Instrument Driver for other Garmin models that you might be able to modify:

Garmin GPS Series

Cheers,

NathanT

[Cmag58]

Thank you very much for your reply, but I do not understand one thing. I have drive made by Garmin and commercial programs can read the data from GPS when I use it. But Max can not find the equipment. Max only see it when I used the drives wizard. Do you know how I can use the Garmin drive with Max ?

[Dennis_Knutson]

MAX is not supposed to recognize it except in a few special cases, nor does it need to be recognized. MAX will recognize USBTMC devices and if the USB connection emulates a serial port, it will recognize that. Use the driver provided by Garmin and see if a new serial port appears when you plug it in. If not, use the real serial port or the dll they provide.

The driver wizard is useless unless you get the very low level USB protocol. This does not happen often.