I've been sucked into an old project with 16C54 and a 16C57 on board and the
code is just... Well, lets just say Olin would probably be violently sick if
he had to look at this. It was written then modified to hit a moving spec
and then patched by at least two different people. Pure hell.

A new version is in work using a modern processor, but this old cash cow
needs to finance the development and to do that, it needs some tweaks and
bug fixes. It isn't worth re-writing the old PIC code.

Trying to figure out what is going on in this code is just beyond me. Bad
thing have happened inside my brain as a result of trying. What I really
want is to be able to watch this code run in the chips ala the '877 or SX
chips.

So: Is there a PIC that has ICD capability that is a pin for pin replacement
for the x54 or x57 other than the SX?

Is there a reasonably low cost way to emulate a x54 or x57?

---
James.
 

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