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07/11/04 07:27
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#73974 - Opto-isolators on external interrupts
Hi, I hope this isn't easily found in the archives because I did search. I am trying to use a couple of 4N26 optoisolators I had on hand, I planned on using these to interface my ignition pickups on my motorcycle to external interrupts 0 and 1 of my MCU. I am using edge triggered interrupts but can't seem to find resources to properly connect the 4N26 to INT0 and INT1. The way I have them connected ends up pulling the interrupts low then they don't respond to the pickup pulses.

Thanks

James Krushlucki


List of 16 messages in thread
TopicAuthorDate
Opto-isolators on external interrupts            01/01/70 00:00      
   RE: Opto-isolators on external interrupt            01/01/70 00:00      
      RE: Opto-isolators on external interrupt            01/01/70 00:00      
         RE: Opto-isolators on external interrupt            01/01/70 00:00      
            RE: Opto-isolators on external interrupt            01/01/70 00:00      
   RE: Opto-isolators on external interrupts            01/01/70 00:00      
      RE: Opto-isolators on external interrupt            01/01/70 00:00      
      RE: Opto-isolators on external interrupts            01/01/70 00:00      
         RE: Opto-isolators on external interrupts            01/01/70 00:00      
            RE: Opto-isolators on external interrupts            01/01/70 00:00      
         RE: Opto-isolators on external interrupt            01/01/70 00:00      
            RE: Opto-isolators on external interrupt            01/01/70 00:00      
               We have too little information!!            01/01/70 00:00      
               RE: Opto-isolators on external interrupt            01/01/70 00:00      
   RE: Opto-isolators on external interrupts            01/01/70 00:00      
      RE: Opto-isolators on external interrupts            01/01/70 00:00      

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