XBR1YD22@ddathd21.BITNET (01/13/87)
Received: from BR1.THD.DA.D.EUROPE by DDATHD21.BITNET
via GNET with RJE ; 13 Jan 87 17:44:45
Date: Tue, 13 Jan 87 17:38:16 +0100 (Central European Time)
From: XBR1YD22@DDATHD21.BITNET (Ralf Bayer {Herz-Baerchi})
Subject: NEC Floppy Disk Drive at the Atari
To: Info-Atari16@Score.Stanford.edu
X-VMS-To: X%"Info-Atari16@Score.Stanford.edu",YD22
Hi,
I just bought a NEC FD 1036 A disk drive and I added it to my
ATARI 1040 STF as a second disk drive.
The drive is running fine and smoothly (much less noise than from
the built in drive), but the machine doesn't recognize media changes
on the second drive.
I saw magazine advertisements where they offered NEC drives that
were changed for media changes to be recognized.
How do I have to modify the drive so that the media changes will
be recognized? I'm pretty good in soldering, and I'm definitely not
afraid of soldering on the disk drive's electronic board.
Any hints are welcome.
Ralf Bayer (The Care-Baer)
Computing Center @ the Technical University of Darmstadt, West Germany
Arpanet: xbr1yd22%ddathd21.BITNET@wiscvm.wisc.EDU
BITNET: xbr1yd22@ddathd21
-----------------------------------------------------------------------
> REAL programmers use FORTRAN <
-----------------------------------------------------------------------dyer@atari.UUcp (Landon Dyer) (01/14/87)
> I just bought a NEC FD 1036 A disk drive and I added it to my > ATARI 1040 STF as a second disk drive. > > How do I have to modify the drive so that the media changes will > be recognized? I'm pretty good in soldering, and I'm definitely not > afraid of soldering on the disk drive's electronic board. The floppy disk driver peeks at the write-protect status of each floppy drive every few vblanks. Atari floppy drives are spec'd to return valid write-protect status all the time, whether the drive is active or not. The write-protect transition information is used as an aid for detecting the removal of non-write-protected media. Some drives (possibly including the one by NEC mentioned above) return valid write-protect only when the drive is spinning. You'll have to call the drive manufacturer, or find a schematic somewhere. -- -Landon Dyer, Atari Corp. {sun,lll-lcc,imagen}!atari!dyer /-----------------------------------------------\ | The views represented here do not necessarily | "If Business is War, then | reflect those of Atari Corp., or even my own. | I'm a Prisoner of Business!" \-----------------------------------------------/