From: André Fachat (afachat_at_gmx.de)
Date: 2006-11-26 21:02:39
-------- Original-Nachricht --------
Datum: Sun, 26 Nov 2006 19:37:59 +0100
Von: Wolfgang Moser <womo@news.trikaliotis.net>
An: cbm-hackers@ling.gu.se
Betreff: Re: VC1581... almost...
> Hello André,
> what's the difference to Mika Leinonen's 1581
> "replica" board, the DCN-2692 floppy controller ?
>
> http://www.students.tut.fi/~leinone3/dcn2692/index.html
I did not know about this one. Anyway, my goal was to
implement it using my CS/A65 bus system, so you can plug
together boards as you want to. Also I wanted to use
a standard PC drive and cable.
You can find it (some time soon, I have notified the
maintained to publish the new version now) on
http://www.6502.org/users/andre
However, using a small program to M-R the drive controller
return codes and the CIA register, and reading the ROM
listings I found the problem: The pull-down resistor for
the drive ready was to large, so the CPU thought the
drive was never ready (well, as the drive error message
already said ;-).
Thanks for your comments anyway.
Andre
--
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