Re: More on 8280

From: William Levak <wlevak_at_SDF.ORG>
Date: Fri, 10 Jul 2015 19:19:17 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1507101915320.2403@sdf.lonestar.org>
There is also a text file dated 2009, where I surmised that the 8280 used 
a disk controller chip, and listed several possibilities.

We now know that it uses a Western Digital WD1797B-02 controller chip, so 
that file is now obsolete.


On Thu, 9 Jul 2015, Bo Zimmerman wrote:

> Thanks for looking into this.  I will remove the following files:
> 300541-001.bin 
> <http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/old/8280/300541-001.bin>
> 300542-001.bin 
> <http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/old/8280/300542-001.bin>
> 300543-001.bin 
> <http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/old/8280/300543-001.bin>
>
> And rename the -revX versions with the simple part number.
>
> - Bo
>
> On 7/8/2015 10:36 PM, William Levak wrote:
>> 
>> There are two sets of DOS ROMs for the 8280 on zimmers.net, 30054x-001 and 
>> 30054x-revA.  Comparing these two sets, there are a total of seven 
>> differences between them.  Where they are different, the -001 ROMs are one 
>> higher than the -revA ROMs.  This includes two locations where there are 
>> $AA fill bytes and the -001 ROMs have two $AB amongst all the $AA.
>> It appears that the -001 ROMs are defective.
>> 
>> On Tue, 7 Jul 2015, William Levak wrote:
>
>

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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