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???
12/20/07 17:08
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 		 #148557 - Bad design!
Responding to: ???'s previous message
Alan Dorman said:
It turned out to be a flickering flourescent lamp in the ceiling causing the random number generator to lock up.

So the circuit had an EMC problem - specifically in its immunity

The noisy transistor approach was abandoned

You can buy semiconductors specifically designed as noise sources!
http://www.8052.com/forum/read.phtml?id=23959

a RNG that could be implemented using 8031 assembly language.

There is no such thing!
It could only ever be psuedo-random!



List of 53 messages in thread
TopicAuthorDate
let's discuss random numbers            01/01/70 00:00      
   Radomness            01/01/70 00:00      
   chi squared....            01/01/70 00:00      
      51 related            01/01/70 00:00      
   how random is "Random"?            01/01/70 00:00      
      Quantifying randomness            01/01/70 00:00      
   Use one table in the memory            01/01/70 00:00      
   no 'mathematical solution can do that            01/01/70 00:00      
      I like your response            01/01/70 00:00      
   ADC and noise            01/01/70 00:00      
      reminds me of a funny story            01/01/70 00:00      
         Simple local shielding would have helped            01/01/70 00:00      
         Bad design!            01/01/70 00:00      
   The counter and button seems perfect to me            01/01/70 00:00      
   Not sure why people have problems with RNG            01/01/70 00:00      
      what I got out of all of this            01/01/70 00:00      
         Not quite?            01/01/70 00:00      
            And if there isn't a button?            01/01/70 00:00      
         no            01/01/70 00:00      
         More Not Quite            01/01/70 00:00      
            chi square isn't enough            01/01/70 00:00      
               Quantified randomness            01/01/70 00:00      
      By Definition            01/01/70 00:00      
      RNG schemes can be malicious!            01/01/70 00:00      
   pseudo IS pseudo, not random            01/01/70 00:00      
   A really good reference            01/01/70 00:00      
   Is radioactive decay truely random?            01/01/70 00:00      
      Correction            01/01/70 00:00      
      Is anything truly random?            01/01/70 00:00      
         Chaos is...            01/01/70 00:00      
            Chaos is not random.            01/01/70 00:00      
               I didnt tell that it is random            01/01/70 00:00      
   Visual randomness test            01/01/70 00:00      
      Las Vegas            01/01/70 00:00      
      Only for an indefinite number of pixels            01/01/70 00:00      
         How about a coin toss experiment, sort of.            01/01/70 00:00      
            Set of what ?            01/01/70 00:00      
               But my point is that you can know.            01/01/70 00:00      
                  This is wrong, sorry!            01/01/70 00:00      
                     Are you even reading what I wrote?            01/01/70 00:00      
                        A random system is....            01/01/70 00:00      
                           AKA the LCE            01/01/70 00:00      
                           Random is            01/01/70 00:00      
                        Of course, I did            01/01/70 00:00      
                           Before we proceed, ...            01/01/70 00:00      
                              Randomness versus determinism            01/01/70 00:00      
                                 Applying the uncertainty principle            01/01/70 00:00      
                                    Thanks            01/01/70 00:00      
                                       You're welcome            01/01/70 00:00      
                  It is still Random            01/01/70 00:00      
            Depends            01/01/70 00:00      
   Normal distribution.            01/01/70 00:00      
   A random # generator circuit.            01/01/70 00:00      

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