7 Replies Latest reply on Mar 21, 2013 7:16 AM by user_14586677

    Comparator weird behaviour

    ramanathan.av

       Hi All,

         

      I've two comparators (say, CompA & CompB) in my design, whose outputs I take as interrupts by enabling the ComparatorBus interrupt. CompA is at a lower level (threshold) than CompB. Both are continuous time blocks.

         

      I see that CompA works fine when the i/p exceeds the threshold. But it does not give an interrupt for the vice-versa. But, CompB works great for both cases. (You may see that they have different thresholds but the same input). 

         

       

         

      The red circle in the attached image indicates the absence of a transistion that has to occur when the input falls below the threshold or in other words that which executes an ISR.

         

       

         

      Any clarification wud be greatly appreciated.

         

      RAM.