Is there a way to Comunicate with USB device other than VISA using LABView

[kgeisler]

I have a manufacturer-supplied driver   to control my USB device.
Can you show a example of how to talk to my device using the call library function node.
I have a DLL that contains a whole bunch of useful functions that someone else already designed to talk to my device.

I have tried Visa and this just gives errors trying to talk to the device.

[Dennis_Knutson]

You should be using the manufacturer's DLL and if you used the Instrument wizard to create an inf file, you need to remove it from the system. As far as DLLs, you should read the document called "Using External Code in LabVIEW". It's part of the LabVIEW Bookshelf you have on the Help menu. You are going to have to look at the documentation provided by the manufacturer on how to access their DLL specifically. You might want to mention the make and model of the device in case someone has already done it and if you have problems, you will need to provide the function prototypes in the .h file in order to get much detailed help.

[kgeisler]

The device I am trying to connect to Labview is a USB evaluation board
the USB chip that sends out the information is a Cypress part number CY7C68013
Thank you for the information

[Andy Peters]

"The device I am trying to connect to Labview is a USB evaluation board.  The USB chip that sends out the information is a Cypress part number CY7C68013."

And the board enumerates as what sort of USB device?

-a

[JLS]

Hello,

If you're looking for device information including vendor and product ID, and how windows see's the device, try using USB View - you should be able to download it from http://www.srigc.com/PeakSimple.htm (search the page for usbview and you'll find it quickly).

Best Regards,

JLS