Breakpoint Alters PIO Interrupt Behavior - ATSAMV71
you were correct, it turned out to be a matter of just adding a register read to my code when setting up the interrupt, and inside the interrupt handler itself. All it took was a process of elimination to see which register read in the watch was helping the interrupt to trigger properly, and then just replicate that in my code. But for some reason I didn't think of that particular testing approach until I had been working on a separate problem for a little while. Thanks!!