[comp.sys.ibm.pc] Wanted: Adaptec 2070A RLL HD Controller Chip Info

jap7g@mendel.acc.virginia.edu (Jim Pisano) (02/24/88)

I am trying to adapt an Adaptec 2070A RLL HD controller to work with MINIX.
I would like to information about the controller's register address map &
the return codes.  With this info, I can modify the WD HD controller provided
with the MINIX source.  If I can obtain a tech sheet on this controller, please
provide an address.

Thanks in advance,

Jim Pisano
jap7g@virginia.edu

backstro@silver.bacs.indiana.edu (Dave White) (02/27/88)

In article <106@mendel.acc.virginia.edu> jap7g@mendel.acc.virginia.edu (Jim Pisano) writes:
>I am trying to adapt an Adaptec 2070A RLL HD controller to work with MINIX.
>
>Jim Pisano
>jap7g@virginia.edu


The Adaptec 2070A works well with Minix 1.2 in my Zenith Z-151.  I got it to
work by applying the Zenith xt_wini.c mods posted ages ago and changing the
constant that refers to the number of sectors per track from 17 to 25 in
xt_wini.c and in the standalone fsck.  I suspect the Zenith mods
were unnecessary, as the 2070A is not a Zenith product, but I'm not
going to change it if it works!

Email me if you want the source code;  if there is sufficient interest,
I'll post to the net.

backstro@silver