When you start to work with multiple inputs that mean a range of different things, input really becomes a challenge. You can control much of the complexity using finite state machines and similar ...

Asynchronous programming is very much a part of interfacing with the real world. Things that happen in the real world happen much slower than the processor can obey instructions. When you initiate an ...

Just as you can often treat device registers as a memory-mapped struct, you can treat an interrupt vector as a memory-mapped array. In my last column, I suggested that you use casts sparingly and with ...

Traditionally programmers and organizations have had an irrational fear of using interrupts. One might think that statement is facetious but on more than one occasion in the last year the author has ...