[riot-notifications] [RIOT-OS/RIOT] [WIP] cpu/atmega_common: pin change interrupt implementation (#11114)

Robert Hartung notifications at github.com
Wed Mar 6 13:35:50 CET 2019

@maribu Well, it's a regular feature of MCUs which simply does not exists in RIOT at the moment, and it should! My solution is the third one, after old solutions weren't good enough. Additionally, this solution comes with a very small overhead and it doesn't do anything, if not explicitely chosen (you have to define the PCINTs before anyway!).

A pseudo module sounds reasonable as this point, as this would be the same as we are already doing: if the define is set, use the code.

We are back to non-interrupt based context switches since #8904

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