Reverse-engineering WD1000, WD1001 hard disk controllers

[Kip Koon]

Hi Dwight,
The WD1002 card number does sound familiar.  I'm almost sure that is it.
Thanks for the information.  I appreciate it.  

Kip Koon
computerdoc at sc.rr.com
http://www.cocopedia.com/wiki/index.php/Kip_Koon


> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of dwight
> Sent: Sunday, November 20, 2016 1:07 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Reverse-engineering WD1000, WD1001 hard disk controllers
> 
> I suspect Kip had a WD1002. It would have had a BIOS PROM on it. I used
one of these on my NC4016 computer. I'd also purchased
> several 5Meg drives for about $5 ea as DOS no longer supported it. These
worked fine for my NC4016. I used this to add new
> instructions to CM-Forth since the processor had a number of useful side
effects. I could recompile CM-Forth in less than 15 seconds.
> Not that big a deal now days but in the time when the hot Intel processor
was a 386, it was quite impressive.
> 
> Dwight
> 
> 
> 
> ________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Rob Doyle
<radioengr at gmail.com>
> Sent: Saturday, November 19, 2016 9:31:22 PM
> To: cctalk at classiccmp.org
> Subject: Re: Reverse-engineering WD1000, WD1001 hard disk controllers
> 
> On 11/19/2016 5:06 PM, Eric Smith wrote:
> > I've been working a little bit off-and-on for years on
> > reverse-engineering the WD1000 and WD1001 disk controllers
> > (8X300/8X305-based), and their clones.
> 
> I have a hard disk controller for my Heath H100 that uses the 8x300.
> 
> I didn't realize how common that design was...
> 
> Rob.