Could not find what I was looking for out there so I had to reinvent the wheel
here. This is the PC artwork about 74% done. Need to gather a bit more pin info
before I can complete this. Just got around to getting Acroread working for Ytree 
on Linux so I should be able to get what I need from electronic supplier web sites.

The idea here is to bypass the need to pull and insert chips from the PLCC
socket in order to reprogram them in an EPROM burner. This enormously speeds
up software development on these types of embedded computer systems. 
This system does that by allowing me to download software into the system 
through a PC printer port for immediate execution and trial. The big sockets 
on the right accept 32K by 8 static RAMs that hold the program. 

Anybody interested in some PC boards for this system let me know so
I can order enough. If you buy one or more for your own use it
will cut my cost of the PC board tooling. 

I know this is way over the heads of most of you.
Sorry about that. However there are a few of you out there familiar with 
this kind of stuff besides Tracy.
 
Paul Lamar
 
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