I have an XUP USB-JTAG device from Digilent, Inc. which had previously always worked for me just fine, though I typically was using it on Linux machines.
On my Windows 7 computer at work, I've never been able to get it recognized, even after doing the various things with wdreg as noted in some forum posts and answer records.
I can't pipe it through to a virtual machine, either, because it doesn't show up unless the host OS recognizes it first.
I did borrow a DLC-9 from a co-worker and that one works just fine.
Anybody have any experience with this?
what is the part number of xup usb jtag you have?
can you check with linux machine which you had earlier used to check if the cable is functioning correctly?