Re: Profile formatting

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

Patrick Schaefer <pa.schaefer@fz-juelich.de> wrote:

> David Empson wrote:
> 
> > If this reports an I/O error, then there could be a cable problem, or
> > the drive may need a low-level format, which requires an Apple III with
> > ProFile controller, special hardware (a CPU/PROM replacement in the
> > drive) and special software.
> 
> Does anybody exactly know what software and which replacement EPROM you
> need?

The firmware is not just an EPROM.  You need a Zilog Z8 processor with
piggyback socket for an EPROM (I don't know the exact part number).  If
I remember right, the ProFile has a masked ROM or PROM Z8 processor, so
you can't just swap the EPROM over - you have to swap the entire CPU.

The EPROM firmware must match the drive capacity (there are different
ones for a 5MB and 10MB ProFile).

I've never seen the software, so I don't know what is required there.

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