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???
08/15/06 12:35
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#122269 - to turn the KBIF, you have to change the condition
Responding to: ???'s previous message
the 'usual' method is to look for a key in sleep mode an to look for 'no key' in awake mode. on the 'no key' interrupt you can set the look for keey again to catch keys during awake.

As far as I can determine, the only way to use the KBI is
look for key
in interrupt set look for 'no key'
in interrupt set look for key

Erik

List of 22 messages in thread
TopicAuthorDate
LPC 9xx Can't clear KBIF            01/01/70 00:00      
   Turn it off?            01/01/70 00:00      
   I could turn it off            01/01/70 00:00      
      to turn the KBIF, you have to change the condition            01/01/70 00:00      
         Thanks Erik - I'll give it a go            01/01/70 00:00      
            an added comment            01/01/70 00:00      
               What is the rate of change on the input signals?            01/01/70 00:00      
                  nothing of value except the ability to wake up the            01/01/70 00:00      
                     Interrupt for pulse train            01/01/70 00:00      
                        that's basically what the KBI does            01/01/70 00:00      
                  Rate of change ~<100kHz            01/01/70 00:00      
               why not?            01/01/70 00:00      
                  I did not discuss            01/01/70 00:00      
                     It is ok but KBIF is set forever            01/01/70 00:00      
                        that you do not clear the reason            01/01/70 00:00      
                           I change the state of the pin before            01/01/70 00:00      
                              could be the problem            01/01/70 00:00      
                                 Simulators problem            01/01/70 00:00      
   Remote Control using AT89C2051 schematic            01/01/70 00:00      
      just great            01/01/70 00:00      
         Another BS answer.            01/01/70 00:00      
            No BS, I did            01/01/70 00:00      

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