CPE 169 Digital Design Laboratory Digilent Inc. Nexys Development Board. - ppt download
FPGA Function Generator : 6 Steps (with Pictures) - Instructables
Control LUT DAC
Nexys 2 Reference Manual - Digilent Reference
Field-programmable gate array based arbitrary signal generator and oscilloscope for use in slow light and storage of light experiments: Review of Scientific Instruments: Vol 84, No 6