No probs. Given that it works OK using a standalone exerciser program. I would have thought the hardware would be pretty stable?
I haven't found CF or IDE interfaces to be timing sensitive given the fairly slow speeds the Z80 produces. Cheers! Max On Thu, Jan 15, 2015 at 12:43 PM, Rich Leary <[email protected]> wrote: > Max, > > Thanks and all you mention is good and correct. Bad news I have already > checked all of these points. > > As I mentioned in my response to Bob, I think the root cause is a hardware > issue either a level issue or a timing issue. The good news is that I have > the test equipment to look for the root cause in the form of a nice Agilent > DSO and a LogicPort logic analyzer. > > Of course all this takes time so it may be a while before I post > definitive findings. > > I have already tested every LS (or S in the case of the 74S03's) chip and > they test good as does the 82C55-10. So I will be looking for not low > enough lows or not high enough highs and a few nanoseconds of timing > errors. It actually is kind of fun in a geek way! ;-) > > Rich Leary > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
