Maybe someone with more knowledge and experience here can add something about logic analyzers.
Very useful for troubleshooting DVGs and AVGs on vector games (probably true for state machines in general). Problem is, you really have to have a pretty good grip on how the state machine is *supposed* to work. If you've done all the necessary up-front work (understanding the circuit, establishing a known set of starting conditions, etc.) you can watch the various opcodes get executed in real-time and get a pretty good idea of what might be wrong. A logic analyzer isn't the optimum tool for most troubleshooting situations where you'd expect something like an output drive transistor failure inside an IC - a scope is more appropriate for that. We very rarely break out a logic analyzer except for vector work. FWIW, we use the HP family of analyzers, rather than the Tektronix models that have been mentioned so far. Oh - that reminds me - it seems like someone earlier was confusing a logic *probe* with a logic *analyzer*. Just in case everybody doesn't know, they are two completely different animals... Alex ---- ayeckley@elektronforge.com www.elektronforge.com _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist