This project started as an investigation of high speed A/D interfacing to a Xilinx development board. Components that now exist and will be posted include

• A design for an 8-bit, 100MHz, 4-channel A/D PCB that interfaces to a Digilent (http://www.digilentinc.com) Nexys FPGA board.
• VHDL code to clock the A/D's, optionally downsample, and capture samples into the FPGA's on-chip memory.
• Firmware for the USB chip on the Nexys to support data transfer to a Linux PC.
• Drivers to access the data using the Octave signal processing language.

UPDATE Main hosting for this project is going to be on Source Forge. See http://mhz100q.sourceforge.net .