1. Alasttt

    Thread Starter Member

    May 13, 2015
    68
    0
    Hi,

    For an AVR, if I set the interrupt to detect a rising edge. How does the uC determine that it has received a rising edge ?, is there some sort of threshold voltage that it uses ?. Likewise for a falling edge,

    Cheers
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,388
    497
    Datasheet.
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,138
    1,789
    The circuit is called an edge detector, and they work quite well.