Path: utzoo!attcan!uunet!image.soe.clarkson.edu!nelson
From: vicc@unix.cie.rpi.edu (VICC Project (Rose))
Newsgroups: comp.sys.atari.st
Subject: Re: External 360k 5.25" floppy
Message-ID: <1989Nov14.044720.28066@rpi.edu>
Date: 18 Nov 89 16:14:11 GMT
References: <1989Nov10.062019.19498@rpi.edu> <1602@ultb.UUCP>
Sender: nelson@sun.soe.clarkson.edu (Russ Nelson)
Reply-To: vicc@unix.cie.rpi.edu.UUCP (VICC Project (Rose))
Organization: CIE, Rensselaer Polytechnic Institute, Troy, NY
Lines: 36

In article <1602@ultb.UUCP> clf3678@ultb.UUCP (C.L. Freemesser) writes:
>There are a few things you have to do to get it to work:
>
>1) Remove the resistor terminator pack
ok, easy enough

>2) Track down a 150 Ohm resistor that's tied to the +5V line.  This
>   resistor brings the voltage down to 2.5V when the drive is called.
>   However, the Atari needs it to be 0V.  Replace it with a 1K Ohm 
>   resistor.
oh ick!, will it still work for a pc this way?

>3) Get a copy of the PCF554.PRG program.  You have to slow down 
>   the access to drive B (the 5.25 inch drive) to 6ms.  It cannot
>   reliably access the drive at 3ms.

where might I find this? If I mailed you a disk and an SSAE to return
it could you give it to me? I have very limited net access (via long
distance so it might be cheaper to do so)

>
>You'll also have to use a program like DC Format 3.02 to format the
>disks.  You cannot format them using the desktop.  Also, you will have
>to mess with the different jumper blocks on the board to find the
>correct configuration.

Formatting, no problem, the pc across the room will do that! Fiddling
with the jumpers seems not to be a problem.

Thank you greatly for your assistance.

--
Frank Filz
Center For Integrated Electronics
Rensselaer Polytechnic Institute
vicc@unix.cie.rpi.edu
-- 
--russ (nelson@clutx [.bitnet | .clarkson.edu])
Live up to the light thou hast, and more will be granted thee.
A recession now appears more than 2 years away -- John D. Mathon, 4 Oct 1989.
I think killing is value-neutral in and of itself. -- Gary Strand, 8 Nov 1989.