22 Feb
2009
22 Feb
'09
10:53 a.m.
(Using a 405x with an 8050 is a PAIN. You send all
the commands to the
drive to find the file and be ready to load it. You then type OLD at 8 and
what does the machine do? Why, asserts IFC, of course. But there are
ways around this. I wonder if I can find my notes...)
If this were my system,. I think I'd modify that 8050 to ignore IFC. I
don't have the service manual in front of me, but it's probably jsut a
matter of cutting the trace to the apporpriate pin of the IEEE-488
socket. 8050s are a lot more common that 405x's, adter all, so I'd modify
that end (not to mention the fact that there are times when I'd want to
be able to reset other devices from the 405x.
If you could find an 8250LP, the IEEE-488 connection in that goes through
an intenral cable which would be easy to reversably modify.
-tony