Path: utzoo!attcan!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege
From: grege@gold.GVG.TEK.COM (Greg Ebert)
Newsgroups: sci.electronics
Subject: Re: More ST-506 drive woes...
Message-ID: <1139@gold.GVG.TEK.COM>
Date: 3 Jul 90 15:48:00 GMT
References: <15514@s.ms.uky.edu> <No9BL4w162w@cybrspc> <2688c8f6-28a.2sci.electronics-1@vpnet.chi.il.us>
Organization: Grass Valley Group, Grass Valley, CA
Lines: 10

>
>>There's no way to start a low-level format!  Does anyone have, or know
>>where to get, a formatter for these original IBM controllers?
>

This came up in comp.sys.ibm.pc.hardware. Being a hacker, I would read the
data sheet for the WD1010 (or WD2010) hard disk controller chip. On the
PC-AT (and probably the PC & PC-XT), the controller is strictly I/O mapped,
and lives at 1F0h-1F7h. There's also registers at 3F6 and 3F7, but I think
you can get by without them. Happy hacking.