Hi i want to generate high frequency noise with fpgas i do not know how i can do it with which IC or with which software? imagine iwant to generate a high frequency signal with random amplitude. thanks a million   Regards sarah  New Email names for you! Get the Email name you've always wanted on the new @ymail and @rocketmail. Hurry before someone else does! http://mail.promotions.yahoo.com/newdomains/aa/ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.opencores.org/forums.cgi/cores/attachments/20090226/49b200c8/attachment.htm

----- Original Message ----- From: sara karamisara_87_k at y...> To: Date: Thu Feb 26 00:20:24 CET 2009 Subject: [oc] A Question
Google for "noise"+"shift register" or "LFSR".

Regards
Thomas

Hello sara you can find your reply in XAPP052.pdf from xilinx co. Best regard ----- Original Message ----- From: thomas_rudloff at gmx.netthomas_rudloff at g...> To: Date: Fri Mar 6 13:17:18 CET 2009 Subject: [oc] A Question

...

...
... Others have mentioned LFSRs, which might be exactly what you are looking for. An alternative is "true hardware random number generators", such as the "Whirlygig RNG". The people at the "Way of the exploding head" (?) have documented that random number generator extremely well, including exactly what chips and what software was used. "The Design and Analysis of a True Random Number Generator in a Field Programmable Gate Array" by Paul W. Kohlbrenner is a similar system. .. _LFSR http://en.wikipedia.org/wiki/LFSR .. _"Whirlygig RNG" http://warmcat.com/_wp/whirlygig-rng/ .. _"The Design and Analysis of a True Random Number Generator in a Field Programmable Gate Array" http://teal.gmu.edu/courses/Crypto_resources/web_resources/theses/GMU_theses/Kohlbrenner/Kohlbrenner_Fall_2003.pdf -- David Cary 1.918.813.2279 http://carybros.com/