I plan a stand-alone USRP2 transmitter (without using PC).
So, it is required to modify the Spartan3 ISE project(s) and add some
HDL source codes for the transmitter.
However, there are many sub-blocks in the project(s) so that it is hard
to figure out that which block should be modified.
It would be very helpful for me if anyone could notify that which part
(or block) should be modified.