Simple. How do I read a pin in the most efficient way? I don't want to use a mask.
This question is similar to https://www.avrfreaks.net/forum/s....
I know, this question is ridiculous! But I did not find any answers. If there is some other way to find such info, I'm all ears.
The LED toggle examples in Studio 7 supposedly use a button to toggle the LED, the descriptions say so. But in actuality they toggle the LED from SysTick.
There must be some other example that reads a pin, but Atmel does not like Google (nor any of its users).