[Discuss-gnuradio] USRP2 FPGA Notes

[Matt Ettus]

Please note that the USRP2 uses a Spartan 3-2000 chip.  This means that 
if you intend to do your own FPGA development, you need to use the full 
version of the Xilinx tools in order to generate an image for it.  You 
cannot use the free web pack version.  Thus there are several options 
for you:

- Just use the prebuilt FPGA images we provide
- Purchase the full version of ISE from Xilinx
- Get a 60 day demo version from the Xilinx Web Site
- Convince your Xilinx apps engineer to get you a free copy
- Universities often get the tools free of charge
- Release your changes to the community and we can find some sort of way 
to build them for you (if anybody wants to work on putting together some 
scripts to do this automatically, let me know).


Matt