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???
06/20/10 13:30
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Msg Score: +1
 +1 Good Answer/Helpful
#176782 - State Machine!
Responding to: ???'s previous message
Another fine application for a State Machine, IMO.
aka "Finite State Machine" or "FSM" for short.

The Events driving the FSM are keypresses (hence, as Per says, your scanning remains unchanged) and a timer...

List of 23 messages in thread
TopicAuthorDate
Ideas for Multi-tap keyboard routine            01/01/70 00:00      
   just follow            01/01/70 00:00      
   Multi-tap is not too difficult            01/01/70 00:00      
      Two-step operation. Keyboard input + post-processing            01/01/70 00:00      
         State Machine!            01/01/70 00:00      
            Agree 100%            01/01/70 00:00      
               Time to code            01/01/70 00:00      
                  Software Timers!            01/01/70 00:00      
                     Practical Limits            01/01/70 00:00      
                        Don't lock up in infinite loops everywhere            01/01/70 00:00      
                           In the pseudo code...            01/01/70 00:00      
                           State Machine            01/01/70 00:00      
                              Divide by 5            01/01/70 00:00      
                                 Timer resolution            01/01/70 00:00      
                              State Machine            01/01/70 00:00      
                              Looks not bad programming practice            01/01/70 00:00      
                  Using Timer May Still be Possible            01/01/70 00:00      
                     Done !            01/01/70 00:00      
                        Very Cool!!!            01/01/70 00:00      
                        Compare with zero is better            01/01/70 00:00      
                           Avoid ISR jitter using timer T1            01/01/70 00:00      
                           Code!            01/01/70 00:00      
                              Thanks Munish...            01/01/70 00:00      

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