Re: The CVPPC on board SCSI driver.

[Ken T. <ke...@we...>]

On 24 Jul 2002, Michel D=E4nzer wrote:

> On Wed, 2002-07-24 at 14:27, Rene Brothuhn wrote:

> > On 2002.07.24 12:33 Ken Tyler wrote:

> > > I came across a pait of 4.3 Gig UW SCSI drives at a give away price t=
he
> > > other day.  I thought I might grab them and have ago.

I might spend my money on the drives.

> Great to hear you're making progress! Can you please commit what you
> have, so others can look at it?

Good, I'd like to see it too !
=20
> > After that, when the driver tries to reselect a device (for reading out=
=20
> > the capacity...), I got an illigal instruction exception from the SCRIP=
TS.=20
> > But there is no illegal instruction. The documentation of the 53c770 sa=
ys,=20
> > that illigal instruction exception also occur on some illegal phases on=
=20
> > the SCSI bus. I don't know much about SCSI bus arbitration, but I'm=20
> > learning...
>=20
> I don't really know anything about this, but if the CPU hits an illegal
> instruction, there could still be coherency issues?

I think the illegal instruction Rene refers to are in the SCSI SCRIPTS
that the ncr controllers use.  Don't know much about them but someone who
does is  Richard Hirst <rh...@li...>, very helpful when I tried
(and failed) to get the A4091 running reliably.

Ken.