[Ken Shirriff] Demystifies BeagleBone I/O — Hackaday

If you have ever spent a while delving into the bare metal of talking to the I/O pins on a contemporary microprocessor or microcontroller you will know that it is not always an exercise for the faint-hearted. A host of different functions can be multiplexed behind a physical pin, and once you are looking at…

via [Ken Shirriff] Demystifies BeagleBone I/O — Hackaday