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???
10/29/09 16:57
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 		 #170215 - can be dangerous
Responding to: ???'s previous message
If no hw noise generator is available, I do recommend a normal pseudorandom generator as already discussed here for low-end requirements.
The J1708 (and other?) standard specify that after a bus collision a random delay is to be inserted before the next transmission attempt. I have had two devices collide (and locking the bus) eternally because they used the same pseudo-random algorithm.

Erik


List of 67 messages in thread
TopicAuthorDate
Random numbers            01/01/70 00:00      
   How random?            01/01/70 00:00      
   extract?            01/01/70 00:00      
      Time for Google            01/01/70 00:00      
      Extract            01/01/70 00:00      
   you can't            01/01/70 00:00      
      a very good way to get random numbers            01/01/70 00:00      
      Interesting anecdote regarding timers:            01/01/70 00:00      
      Periodicity            01/01/70 00:00      
   Just curious...            01/01/70 00:00      
      Didn't search first!            01/01/70 00:00      
         New Information not searchable            01/01/70 00:00      
            Using life itself as part of its computational matrix...            01/01/70 00:00      
               Sure it is            01/01/70 00:00      
         Show me any real new thread...            01/01/70 00:00      
            But...            01/01/70 00:00      
               It really means...            01/01/70 00:00      
                  No "Come In!", but a "Go Home!"            01/01/70 00:00      
                     Exclusive information...            01/01/70 00:00      
                        Thanks...            01/01/70 00:00      
                        First and ONLY Time I reply to this            01/01/70 00:00      
                           Completely ridiculous might be a bit strong            01/01/70 00:00      
                           Lazyness...            01/01/70 00:00      
                              ...is already ignored            01/01/70 00:00      
                                 But we restrict ourselves!            01/01/70 00:00      
                                    No, you are restricting the definition of "help"            01/01/70 00:00      
                                       Your propaganda again...            01/01/70 00:00      
                                          People ARE posting code snippets etc            01/01/70 00:00      
                                             Come on, how many do so?            01/01/70 00:00      
                                                Do what?            01/01/70 00:00      
                                          The limiting factor            01/01/70 00:00      
                                             Mixing subjects            01/01/70 00:00      
                                                Not a valid answer            01/01/70 00:00      
                                                   Are we poluting this thread?            01/01/70 00:00      
                                                      Yes, but Roberto has gone already...            01/01/70 00:00      
                              true for good schools, but not for diploma mills            01/01/70 00:00      
                     Balance            01/01/70 00:00      
                        Warding people away is no good policy either            01/01/70 00:00      
                           Bully for seeing problems with negative votes???            01/01/70 00:00      
                              Its his will            01/01/70 00:00      
                              Its just a biginning!            01/01/70 00:00      
                                 Still extrapolating            01/01/70 00:00      
                                    Relativity?            01/01/70 00:00      
                                    Extrapolating What            01/01/70 00:00      
                                       Not a valid conclusion!            01/01/70 00:00      
                                       Still extrapolating            01/01/70 00:00      
                           Wrong link?            01/01/70 00:00      
                              link to link            01/01/70 00:00      
                                 But nothing about fear of 8052.com?            01/01/70 00:00      
                                    At least,...            01/01/70 00:00      
   This method might work...you can try it....            01/01/70 00:00      
      Unnecessary complication!            01/01/70 00:00      
         Watch out for distribution problems for small ranges            01/01/70 00:00      
         Yes..But for added randomness, use the table            01/01/70 00:00      
            Incorrect - the table adds nothing!            01/01/70 00:00      
               Quality often important even for simple devices            01/01/70 00:00      
                  can be dangerous            01/01/70 00:00      
                     Bus arbitration needs a lot            01/01/70 00:00      
            HUH????            01/01/70 00:00      
      he can't            01/01/70 00:00      
      Modulating the /INT0 input by a simple noise generator            01/01/70 00:00      
         Post-processing needed            01/01/70 00:00      
            What interrupt?            01/01/70 00:00      
               Both interrupt or gating possible            01/01/70 00:00      
                  Full agree with everything you wrote!            01/01/70 00:00      
         Addendum...            01/01/70 00:00      
   Google as a resource?            01/01/70 00:00      

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