M8207 anyone?

From: Jerome Fine <jhfine_at_idirect.com>
Date: Thu Aug 10 09:40:05 2000

>ajp166 wrote:

> Look into a m7941 (DRV11) parallel line unit sa that give you lots of bits for
> parallel IO. Another would be the M7950 DRV-11B general purpose DMA
> interface (also a parallel IO). The latest one was the DRV-11J (M8049)
> and that has enough lines to interface anything (32 in and 32 out).
>
> The later boards could possibly even be enough to fake the IDE interface
> directly. Even an old clunky 120mb WD2120 would seem large!

Jerome Fine replies:

Any ideas as to how the DRV11-J (M8049) might need to be programmed
to interface to an IDE drive? Any could that become a device driver?

I have heard that there is a possibility of using an IDE as the disk drive
behind a controller that would be able to use the HD(X).SYS device
driver that John Wilson makes use of in the E11 emulation software.
In addition, it has been suggested that even a SCSI drive might be OK
as well. What might be involved in producing such an animal? While
HD(X).SYS is far too simple a concept to use in an OS that requires
multi-tasking, like RSX, for RT-11 it seems like the perfect solution.
Unfortunately, I have so little hardware knowledge that I do not know
even what questions should be asked.

Sincerely yours,

Jerome Fine
Received on Thu Aug 10 2000 - 09:40:05 BST