Date   : Tue, 23 Nov 2010 17:28:30 -0000
From   : mark@... (Mark Usher)
Subject: Harddisc fakery using a microcontroller

> Um, the E01 uses the same ACB4000/MFM drive combo used by the Acorn
> (and
> other) Winchester drives for the Beeb.

Not quite. The Host Adapter board plugs straight into a SCSI drive RO652. No
ACB4000 involved. I've just hooked up a Seagate ST2209N to it which also
seems to work quite well. 
Perhaps the host adapter is slightly different to the Beeb one and ATN has
actually been implemented! I could compare it to a BBC one as I have both
here. I was planning on attaching the file store one to a Beeb and seeing if
that worked also with the SCSI. This is all inside an E20 unit. 

> The E01S is SCSI.
> RO652 is just the hard drive model, the E01/E01S is hard drive agnostic.

Yup, and the E01S is plugged straight into the drive, skipping the host
adapter.

///M