A couple of days ago I managed to get the clock looking much better with some capacitors and a small smoothing resistor. So, armed with my new oscilloscope, it was time to hook it back up to the rest of the system and see how things worked.

Short answer: they …

Following on from the last investigation into the mysterious decrement bugs I decided I'd done as much debugging as I could with just my old Saleae logic analyser, and took the plunge and bought an oscilloscope. I'm surprised I've managed to get away without having one for so long.

Once …