Date   : Mon, 04 May 2009 15:22:07 +0100
From   : mike@... (Mike Tomlinson)
Subject: ADFS 1.53 patch

In article <d8834d20905040515m2c4babd1y9fbe9a5b00fc4a4@...>,
Alex Taylor <zeem.uk@...> writes

>I'm not sure if they need to do that, XTA after all is an 8-bit bus by
>definition, so drives designed for it are designed entirely for 8-bit
>data and commands. I wouldn't have thought there would be any need for
>a double-transfer, such as is required for getting 16-bit data in and
>out of a drive using an 8-bit bus.

Yes, good thinking (unlike mine!)

>I've low-level formatted them loads of times using the Option ROM
>formatter, which seems to succeed. The most recent one I got in a
>PC1512 will run through the formatter, but running a disk checking
>utility afterwards results in multiple read errors on each cylinder.

Are you selecting a suitable interleave?  (5 is usually recommended)

>Trying to format from DOS it results in 'Track 0 bad or media
>unusable'. I haven't looked at the other one for ages, but I seem to
>remember it doing something very similar.

Well, they're the best part of 25 years old, and were hardly the most
reliable things even when new...  what make and model are the drives,
out of interest?

-- 
(\__/)   
(='.'=)  Bunny says Windows 7 is Vi$ta reloaded.
(")_(")  http://imgs.xkcd.com/comics/windows_7.png