Re: D9060 with OpenCBM

From: Ethan Dicks <>
Date: Sat, 19 Aug 2017 13:00:45 -0400
Message-ID: <>
On Sat, Aug 19, 2017 at 3:53 AM, smf <> wrote:
> On 18/08/2017 20:00, Ethan Dicks wrote:
>> The SASI controller does support two drives. I don't know what ROM
>> mods it would take to make that work.  I'd love to see how that was
>> done.
> I'm not sure rom mods are necessary. The dos board supports unit 0 & unit 1,
> which is mapped to the SASI LUN.

Ah.  I didn't think there was parsing in the DOS ROM code for 0: and
1:.  If that's in there, then, yes.  two drives is easy.

> SASI and SCSI 1.0 are essentially the same

Fairly close.  The parity line, I think, is the big difference.  The
commands are basically the same.

> you may be able to ditch the
> xebec board and the drive. However you'd need something like a SCSI expander
> to get two drives to appear as the same ID with different LUN.

Right.  Bridge boards, like the Xebec or the Adaptec ACB4000 typically
did multiple units as LUNs and embedded SCSI does not.

Stuff to think about when I pull these out.


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Received on 2017-08-19 18:00:02

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