Sysgen Omni-Bridge Floppy Controller

From: Don Maslin <donm_at_cts.com>
Date: Sat Apr 27 00:34:41 2002

On Fri, 26 Apr 2002, Tarsi wrote:

> Anyone got docs or at least jumper settings for an 8-bit Sysgen Omni-Bridge
> Floppy Controller? I just found one and it works (or at least it loads its
> BIOS on boot) and so I'd like to get it going.
>
> I'm gonna try to run it in an AT&T 6300.
>
> Thanks!
>
> Tarsi
> 210

The Omni-Bridge card that I have has the switch setting information
silk-screened adjacent to the relevent switches. However, by way of
confirmation:

Switch 1 selects drive type. Positions 1 & 2 select for drive A, and
positions 3 & 4 select for drive B.

        360KB 1.2MB 720KB 1.44MB
        5.25" 5.25" 3.5" 3.5"
        O O O X X O X X

        O=Off
        X=On

Switch 2, positions 1 & 2, selects BIOS address.

        None CA00 CC00 CE00
        O O O X X O X X

        O=Off
        X=On

Position 3 selects I/O address.

        3F0-3F7 370-377
           O X

        O=Off
        X=On

Position 4 selects whether 1.2MB drive is fixed or dual speed.

        Fixed Dual
          O X

        O=Off
        X=On

The two 3-pin Berg headers near the top of the bracket control power
through the external connector. The jumpers should normally occupy the
left two pins of each header which is power off.

There is a 360K floppy of files that go with the card. I will send you
a ZIP file of its contents by private email.

                                                - don
Received on Sat Apr 27 2002 - 00:34:41 BST