03-23-2010 08:53 AM
I don't see a reason in this world why you couldn't as long as your "XC2C128 on board" has a JTAG port connection to a header to which you can connect your USP Platform Cable.
Your data sheet for the CoolRunner-II family has discussion on In System Programmability.
The iMPACT software is designed to work with the device and programmer.
Is there something in particular that gives you pause? A reason why you thought this combination might not work?