At 17:19 12/01/2012 +0000, you wrote:
Mplane design was strongly influenced by Nasta. There were plenty of pull-
up resistors and smoothing caps. The extensive ground plane was vital.
I have no solid evidence, but I always assumed SGC etc had to be closest
to the motherboard.
I made a couple of 64pin multiway connectors, not in plane form, but as an
'F' when seen from the end. The other with third female lower down. Mounted
on a short piece of strip board and quite alot of spaghetti.
No anti bounce precautions, nor any felt.
As to card order, I only had a problem QEPlll which only worked at slot 0
above 768k.
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