The code in this directory was originally is taken from:
http://www.xilinx.com/support/documentation/application_notes/xapp058.zip
(v.5.01)

Ian Lesnet wrote: "I contacted Xilinx support and they said the license is do
what you want, no warranty. (BSD I guess...)"
(http://dangerousprototypes.com/forum/viewtopic.php?f=51&t=2239#p21257)

Refer to XAPP058 for more information:
http://www.xilinx.com/support/documentation/application_notes/xapp058.pdf

This software has been modified for HackRF.