Author: tIn (mdc.mdc.de)
Date: 02-26-2002 14:03
>Hmmm ... IIRC the external connector only
>carries a reduced set of signals but
O.K., the set may be reduced, but the original controlling lines remain (step, direction, write data, read data) - the Data signals are not changed to an "easier" format to grab... I even don't know if they are serial data lines that could be connected directly to a computers serial port...
>I guess the basic informations to start >with can be gathered from Michael Ruge's >chips'n chips documentation, the rest might
Just checked the link, great document, thanks!
>Talked to some guys on IRC yesterday and it
>is about 90% sure that an ST that has an
>internal diskdrive (STf) will never
>identify an external one as A:.
The Disk Select Signals have to be exchanged (just two diodes to solder AFAIK, but I'd rather go for a solution more "plug&play" ;-).
Unfortunately the internal connector does not carry the drive select A: and the external does not carry the drive select B: - if they would, the external connector might
be used (the host would just have to check if the correct disk select is set). Soldering might solve the problem, but... I don't want to ;-)
>probably no good and it's the internal >Shugart bus instead ...
Yep.
>Good luck. :-)
Thanks...
Maybe you might be willing to help digging out some people in IRC or wherever being not so unbelievable untalented when it comes to hardware than I am ;-) I would apreciate that a lot.
tIn.
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