Hello All,
I am looking for a time efficient means to add USB capability to a Virtex-4 LX80. After looking around it seems that there are several third party solutions that require minimal number of interface I/Os (a byte wide data interface and a three wire serial control interface). However, I thought it would be a good idea to see if anyone with experience might suggest parts to avoid and parts that are recommended. Ideally what I would like to find is a part that requires less than about 20 FPGA I/Os to interface to and provides example driver source implementing a transfer of a single block of continously addressed memory.
Thanks for any suggestions, Brendan