🚀 go-pugleaf

In article <1isouoINNbr9@fido.asd.sgi.com> autry@magellan.stlouis.sgi.com (Larry Autry) writes:
>This install is not going well.  I have done the following:
>
>1. Successfully installed the board; the system "sees" the controller.
>    And the controller "sees" the drive.
>    (Attempted the alternate ROM address on the board also.)
>2. Installed the Toshiba drive and hoped that the factory chose the
>    default settings for the jumpers appropriate for the XT.
>3. Formatted 720K floppies successfully.
>
>In evening two:
>
>4. Added a config.sys entry for driveparms like:
>      driveparm=/f:7 /d:0 # for MSDOS v5.0
>
>5. Subsequently, I can no longer format 720K floppies, and
>	apparently the controller does not "see" the drive  but
>	I can't be sure.  If I back out the driveparm, the drive
>	would be totally useless. 
>
>All cables appear to be good and oriented correctly.
>I suspect either a jumper on the drive or a configuration
>line in the config.sys file.  I realize of course that an
>HD floppy drive has to be "crowbarred" into an XT (almost).
>I am now accepting suggestions as to what to else to look 
>for.  If any more data is needed I will suppy it via e-mail.

On an XT, HD floppies require ROM on the controller card to operate,
since the BIOS doesn't have the proper code for it.  I've never been
able to get driveparm= to do anything on any version of DOS, so ignore
it.

The Toshiba 1.44MB drive is the kind I used in my computer.  I've used
them in an XT, and later transferred them to an AT, and then to a 386
with no problems.  The problem is entirely with your floppy controller
card.  Get one meant for connect a HD floppy to an XT.  An AT (even an
8-bit one) won't have the necessary ROM onboard.

Mine is a no-name "UFDC-100 Universal Floppy Drive Controller".  It
allows you to connect up to four floppy drives (360K, 1.2M, 720K, or
1.44M) to an XT.  I use the card with my 386 as well, since I haven't
found a better controller for running three floppy drives at a time.
After setting the DIP switches to the drive types, and setting the
media-sense line to PS/2 mode (AT mode won't let me format 720K disks,
don't ask why), the drives work just fine.  I've used this setup on
every computer I've owned, the first of which was an XT.

What controller card are you using, and what switches/jumpers are
available?
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