A Thread Starter Alasttt Joined May 13, 2015 68 Jan 30, 2016 #1 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
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
Papabravo Joined Feb 24, 2006 12,767 Jan 30, 2016 #3 The circuit is called an edge detector, and they work quite well.
