Apr 22, 2014 #1 M megahady Newbie level 3 Joined Jun 9, 2010 Messages 3 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,283 Location Egypt Visit site Activity points 1,299 Dear All I'm Looking for float random number generator in VHDL code. Any suggested Code ? Megahady,
Apr 22, 2014 #2 R rca Advanced Member level 5 Joined May 20, 2010 Messages 1,527 Helped 355 Reputation 710 Reaction score 336 Trophy points 1,363 Location Marin Visit site Activity points 8,773 xor sequences. but this are generally deterministic, I means same number sequence from the power-up.
Apr 22, 2014 #3 andre_luis Super Moderator Staff member Joined Nov 7, 2006 Messages 9,654 Helped 1,191 Reputation 2,401 Reaction score 1,219 Trophy points 1,403 Location Brazil www.linkedin.com Activity points 55,986 rca said: xor sequences. but this are generally deterministic, I means same number sequence from the power-up. Click to expand... Depending on what hardware circuitry are being used and how the calculation get started, an asynchronous input could be used as a real random seed for this function, such as a clock.
rca said: xor sequences. but this are generally deterministic, I means same number sequence from the power-up. Click to expand... Depending on what hardware circuitry are being used and how the calculation get started, an asynchronous input could be used as a real random seed for this function, such as a clock.
Apr 22, 2014 #4 D Dan Mills Advanced Member level 2 Joined Nov 10, 2013 Messages 510 Helped 239 Reputation 478 Reaction score 231 Trophy points 43 Visit site Activity points 4,558 There is a paper kicking around on the use for coupled ring oscilators driving FSAs to produce high speed random numbers that pass the usual randomness tests. http://forums.xilinx.com/xlnx/attachments/xlnx/EDK/27322/1/High%20Speed%20True%20Random%20Number%20Generators%20in%20Xilinx%20FPGAs.pdf Regards, Dan.
There is a paper kicking around on the use for coupled ring oscilators driving FSAs to produce high speed random numbers that pass the usual randomness tests. http://forums.xilinx.com/xlnx/attachments/xlnx/EDK/27322/1/High%20Speed%20True%20Random%20Number%20Generators%20in%20Xilinx%20FPGAs.pdf Regards, Dan.