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 <firstname.lastname@example.org> An: email@example.com 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 -- "Ein Herz für Kinder" - Ihre Spende hilft! Aktion: www.deutschlandsegelt.de Unser Dankeschön: Ihr Name auf dem Segel der 1. deutschen America's Cup-Yacht! Message was sent through the cbm-hackers mailing list
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