If I'd hard-wired it, then it wouldn't catch you out, but then you also wouldn't have the flexibility. :geek: And I wouldn't have learned as much! I think it's a good design and I wouldn't change it. Not to mention that I'm not sure if I would appreciate what ASSIST09 is doing for me if I hadn't go...

YES! That was it. I didn't have the NMI jumper on the Motorola I/O card. Thanks Greg -- I am having such a good time with your MECB 6809 computer!

Is everyone able to single step code using ASSIST09? I'm not getting optimal function out of the monitor. Which is to say, I don't get behavior outline in the manual. It seems that breakpoints will break only one time. I am unable to trace at all. T #, or . is behaviorally equivalent to G. Breakpoin...

Hi there, My name is Mike. I spent a career as an embedded systems engineer until I got fed up with the corporate environment. After walking under a sign that read, "We compete for Shareholders" one too many times to get to my desk, I packed by bags and left. I was badly burned out and I t...