Re: ProFile HD system for the IIe?

[dempson@atlantis.actrix.gen.nz (David Empson)]

In article <2FEB199502323051@vax2.concordia.ca>,
Mitchell Spector <spector@vax2.concordia.ca> wrote:
> 
> 	Finding an Apple III ProFile controller or the piggyback ROM
> would probably be a near impossible task. I'm still surprised I was able
> to find even the Apple III computer itself, seeing how few were in 
> circulation. 

I have a copy of the ROM required for low-level formatting.  It
contains 2K of code, so a 2716 EPROM is required (a 2732 might also
work).

I haven't checked yet, but I think the microprocessor in the ProFile
is a Motorola 68P01 (6801 with piggyback ROM).  You have to remove the
existing ROM and put the formatting ROM in its place.

I'll see if I can get more details about this - I have a friend who
has done several, and should know what is needed on the Apple III.

> 	I've recently been offered a pair of 5MB ProFile HDs, however
> they were previously used and formatted on an Apple III and Lisa. If
> re-formatting these as ProDOS requires a complete low-level format 
> they're probably of no use to me. :/

You should only need to do a low-level format if the sectoring
information has been damaged.  The same physical format is used in all
cases - just do an initialize or erase, and install the desired file
system.


-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand