Quote Originally Posted by Joe S. View Post
When interrupt fires it sets a flag bit and will not fire again until reset in ISR, that's The word according to my 3 bottles of Miller High Life anyway
Almost, but I think the wording should be 'will continuously fire'...in other words, if the flag stays set (or clear as the case might be), the program returns to the main loop and gets interrupted again straight away.
But then again...I would never doubt the word of a select beverage...