Labview Driver for Garmin Nuvi 255W

[Krafft]

Does anyone know how to write a Labview driver to talk with a Garmin Nuvi 255W via USB?  Any feedback would be greatly apprecitated.

[TSJim]

I did a quick search and found information for communicating over USB with examples in other programming languages:

http://www8.garmin.com/support/commProtocol.html

Jim

[Krafft]

Thanks for the feedback.  I have some Labview code that talks over RS-232 to an old Garmin GPS 2 plus.  How hard would it be to replace the serial interface with USB?

[smercurio_fc]

It would be very hard since the two protocols are completely different. Unless the device shows up as a virtual COM port. This would require that the manufacturer used a chip that would make their device appear as a serial port to the computer. Do you know if they did this?

The Garmin SDK that was linked to probably has a DLL that you can call from LabVIEW. You should try to check it out and see. In this case you'd be asking the same question as this one: http://forums.ni.com/t5/LabVIEW/usb-to-usb-driver/td-p/1209209.