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???
03/23/10 19:33
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#174446 - The real problem with debouncing
Responding to: ???'s previous message
In software anyway is it ties up timers and its rarely done properly and its a pain because you are dealling with asyncronous signals which is why i tend to use seperate hardware either the max single input or 8 input jobbies or my own debouncer if I am using a CPLD the code for which you will find in the code library.

List of 18 messages in thread
TopicAuthorDate
switch input > interrupt (debouncing)            01/01/70 00:00      
   double post            01/01/70 00:00      
      Why the extra hardware?            01/01/70 00:00      
         wow            01/01/70 00:00      
            other ISR recommendation            01/01/70 00:00      
         or the other solution (my favorite)            01/01/70 00:00      
            using timer            01/01/70 00:00      
               Some switches have very long bounce time            01/01/70 00:00      
                  a lot depends on the switches themselves            01/01/70 00:00      
                     which is a $#@!! disaster            01/01/70 00:00      
                        Remember that there is more than push buttons out there            01/01/70 00:00      
                        What about the others?            01/01/70 00:00      
                           Majority of implementations synchronizes with key down            01/01/70 00:00      
                              Now I'm confused ...            01/01/70 00:00      
                                 Not Sure About The Code            01/01/70 00:00      
                                    More info on PC keyboard            01/01/70 00:00      
            Short spikes            01/01/70 00:00      
   The real problem with debouncing            01/01/70 00:00      

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