6 May
2002
6 May
'02
3:04 a.m.
From: Doc <doc(a)mdrconsult.com>
I've been wondering, based on some old posts to
the CP/M groups. Will
the same disk, for example an ST251, format and work off either an MFM
or an ESDI controller? Totally true, totally false, depends on drive?
For that mmatter, is there a good newbie-level reference for the 2
interfaces? They were history when I started playing with keyboards,
and I never dreamed I'd need to know.
The problem with EDSI was it sued the same cables as MFM IE: the pair
of 26 pin and 34pin. The interfaces however were toally incompatable.
No, a St251 would not interface to EDSI. It will interface to both MFM and
RLL though RLL may/may_not be reliable with that drive. I have used ST225s
with RLL controllers to get ~30mb from them (st225 is 20mb MFM).
Allison