Date   : Mon, 01 Jun 2009 17:59:45 +0100
From   : darren.grant@... (Darren Grant)
Subject: BBC Master SCSI

On 01/06/2009 16:25, "Rob" <robert@...> wrote:

> What are the differences between the (internal) AIV SCSI interface and
> the sort of SCSI interface that was used for hard discs on the 1MHz
> bus? Could a re-made board do both jobs?

Well there are quite a few differences but some of them are not difficult to
deal with for example the 1Mhz bus connection needs to be buffered using a
couple of 74LS244's that are not required on the master version as it is
internal. But there does seem to be enough differences between the two to
make it quite a complicated process to combine the two.

On 01/06/2009 14:20, "Ian Wolstenholme" <bbcmailinglist@...>
wrote:

> There's one just ended on E-Bay!!!
Yes, that was the one I was hoping to get but it went to ?48.55 in the last
few seconds so my bid didn't get in.

I'm afraid I am getting a bit fed up looking for one and will probably give
up as I have had the Domesday system for years now and been unable to use it
due to the lack of a working interface.

Darren