USB for Mac OSX Labview

[Dave123]

I'm trying to interface a USB microcontroller (Delcom - Cypress USB LS CYC63000) to my LabView program. According to National Instruments USB control tutorial (at: http://zone.ni.com/devzone/cda/tut/p/id/4478) for Mac OSX "As long as no other driver on the system claims the USB device, you can use NI-VISA to access it. No special setup is required"

Ok so I put a "VISA USB control-out" function in a LabView program but one of it's input parameters is the VISA resource name. Where do I get that from? If I run the NI VisaConfig program it just comes back with MyComputer > Serial > ASRL1::INSTR (ready) regardless of weather the device is plugged in or not. Is this just a reference to the USB serial bus/port rather than any devices on it?

In LV if I create a VI with the "VISA find resource" function and run it then it comes back with nothing in the found list output.

In the manual for the USB micro device it states: "The device name consists of a number representing a physical port plus the GUID (global unique identifier) for the device. The current USB port and the GUID are combined to form the device name. The GUID for the Delcom USB I/O device is {b5157d69-75f8-11d3-8ce0-00207815e611}."

So how do I find out the full device name?

Any help much appreciated.
Dave
(Using LV 7.1 on Mac OSX 10.3.9)

[YatinM]

Hi Dave

Im not sure there is a way to retrieve the resource name other than the way you have tried. I have heard of an instance though whereby if you have the USB device installed in your machine and then re-install NI-VISA directly from the disk, the NI VisaConfig program picks up the device.

Give that a go and let me know how you get on,

Kindest Regards

YatinM
NIUK & Ireland