dag@per2.UUCP (Daniel A. Glasser) (06/23/89)
I've been watching this discussion over the years, and I wonder if
anybody has tried the following:
Build a circuit that monitors the disc change status through
the media change detect (or whatever it's called) and invert
the write protect signal for a reasonable period after the
change has been detected, otherwise it would pass the write
protect signal unchanged. This circuit would be put between
the disc drive and the Atari cable (and interface board) in
the drive enclosure or inside the system unit and get its
power from some convenient nearby source.
I would think that the latching of the signal could be reset
by the polling of the select line that the ST does at vertical
refresh, and could be done with a few common 74LS??? chips.
I am not a hardware engineer, but this seems to be a simple solution.
I doubt it would cost very much to build. Anybody care to comment
or try this idea out?
Daniel A. Glasser
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Daniel A. Glasser One of those things that goes
uwvax!per2!dag "BUMP!!!(ouch)" in the night.
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