> Olin - By the sound of your message, it seems that I am way off base here,
> and that I won't be able to check this out without using a scope.

A scope would definitely be useful.  I was assuming you were using one.

> So the
> outputs of the parallel port are not a constant high or low then?

I was suggesting you program them with a counting pattern and look at the
output on a scope to see where the signal is getting lost.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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