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???
02/05/06 16:27
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 		 #109236 - No
Responding to: ???'s previous message
Debounce is a) Not difficult within a time scanned routine and b.) not applicable. One button goes low, clock stops in favour of that player. Repeated bounces on that, so what, it stays stopped.

#Steve

List of 41 messages in thread
TopicAuthorDate
Polling vs interrupts in a chess clock.            01/01/70 00:00      
   Polling            01/01/70 00:00      
      Debounce            01/01/70 00:00      
   Either            01/01/70 00:00      
      debounce?            01/01/70 00:00      
         Yes            01/01/70 00:00      
      Alternatively            01/01/70 00:00      
         but PBs update clocks asynchronously            01/01/70 00:00      
            micro time vs real time            01/01/70 00:00      
               One second is a long time in Blitz chess            01/01/70 00:00      
            Use a fast main loop            01/01/70 00:00      
               but this won't let us power-down            01/01/70 00:00      
                  Do what Ian says            01/01/70 00:00      
                     I don't understand            01/01/70 00:00      
                        set a flag in the PB ISR right?            01/01/70 00:00      
                           No pb isr as such.            01/01/70 00:00      
                              The PB INTs wake up the cpu also            01/01/70 00:00      
                                 re: The PB INTs wake up the cpu also            01/01/70 00:00      
                                    Still LCD            01/01/70 00:00      
                              Isn't PB bouncing going to be a problem?            01/01/70 00:00      
                                 No            01/01/70 00:00      
                                    OK, I get it now, thanks            01/01/70 00:00      
                                       In the timer loop            01/01/70 00:00      
                                          Is it?            01/01/70 00:00      
                                             No            01/01/70 00:00      
                                                ISR capability?            01/01/70 00:00      
                                                   Pick a way            01/01/70 00:00      
                                                   ISR reources            01/01/70 00:00      
               Debounce            01/01/70 00:00      
            Define Immediately            01/01/70 00:00      
               No if the debounce is post delay            01/01/70 00:00      
                  Granted            01/01/70 00:00      
               naah and to the question bu the OP            01/01/70 00:00      
   The smartest thing ...            01/01/70 00:00      
      Re the smartest thing            01/01/70 00:00      
         Re Re the smartest thing            01/01/70 00:00      
         as for the character LCD ...            01/01/70 00:00      
            There are several IC to do this            01/01/70 00:00      
               Perhaps it's cheaper ...            01/01/70 00:00      
                  DigiKey has them            01/01/70 00:00      
      Saving Power            01/01/70 00:00      

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