[Color Computer][Coco] Tandy Hard Disk Controller

Mark Marlette mark at cloud9tech.com
Sat Mar 4 18:32:20 EST 2006


Test more than one CoCo on a SCSI drive?

That would be a disaster.

Mark



At 3/4/2006 04:31 PM, you wrote:

>Somewhere, I have a schematic of this interface. I looked for it 
>yesterday and couldn't find it in my "hobby room"
>I may have it in storage (out back), or somewhere in the house I 
>haven't looked, yet.
>
>Quite a few years ago, I called RS in Austin and talked to someone 
>in a department(it's been a few years, OKAY?). He sent a fax of the 
>diagram and there it was.
>
>I decided this SASI interface would not do for a Small Computer 
>System Interface(SCSI drive) and never wired one up. I purchased the 
>Kenton and haven't looked back.
>
>Now I have two of the Kentons.
>A SCSI system is supposed to allow more than one computer on a 
>single drive. I've been tempted to try this. I just never took the 
>time to test the OS-9 system to see if it would actually do this. 
>The docs in OS-9 claim to do a sharing thing when accessing/writing 
>the same file/record from more than one user.
>Untested.
>
>  Has anyone ever tested more than one coco on a SCSI drive at the same time?
>
>George
>
>
>
>
>----- Original Message ----- From: "Neil Morrison" <neilsmorr at hotpop.com>
>To: "Coco on Yahoo" <colorcomputer at yahoogroups.com>
>Sent: Saturday, March 04, 2006 2:16 PM
>Subject: [Color Computer] Re: [Coco] Tandy Hard Disk Controller
>
>
>>
>>----- Original Message ----- From: "Peter Wemm" <peter at wemm.org>
>>
>>>>I'd like to get a schematic for it - never found one.
>>>
>>>It wouldn't be hard.  It is a PCB with just 3 or 4 74LS style chips on
>>>it.  I'll take a shot at it someday.  It is a simple bus adapter.
>>
>>Even a list of the chips used would help!
>>
>>Neil
>>
>>
>>
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