Hot on the Trail

[Tom Droege <tdroege2@earthlink.net>]

I sent Dan off with a set of memory drawings to talk to his father.  He 
came back with some scribbled notes and a little knowledge of how things 
worked.  Then he showed where there was an enabling gate used that was not 
shown on the drawings.  The result is that I now think I know how the 
memory board works, and the sequence of commands that must be made to make 
it work every time.

I am not doing it right in the software.  It is just luck if it works at 
all.  A flip flop can be set right or wrong on turn on.  One way the board 
works, one way it does not.  I think I mostly sorted out boards that turn 
on the right way for the systems I have shipped.  A few days of writing 
code and testing should tell the tale.  As you all know, I have been after 
this bug for several years.  The drawings just left out an important fact!

Tom Droege