visa 4.0 usb interrupt problem

[edson.alonso]

Hi there!
I´m using VISA 4.0 to comunicate with my USB device. I usually do bulk in and out perfectly well. But, I´m having problems to see all the USB interrupt events. As the first time I invoke my application I can see all of them, but when I run it again some events are missing.

Attached is a simple version of my application.

Thanks for any help.

[Adam W]

Hi Edson,

In your code, the Disable Event could be occuring before the Get USB Interrupt Data.  Try using the error cluster to force the Get USB Interrupt to execute first.

Hope this helps!

Adam W
Applications Engineering
National Instruments

Message Edited by Adam W on 01-17-2007 05:31 PM

[edson.alonso]

Yes! It works fine now! Thanks a lot Adam!
I forgot to mention that I´m using LabVIEW 8.0, so I could not open you file. No problem, I did exactly what you said Adam and it works now.
Thanks again.
See ya!