31 Jan
2003
31 Jan
'03
11:37 p.m.
I would think the CPU would have to use totally different drivers.
Talking to the 12821A interface is TOTALLY different than talking to the
13037 interface board from
the I/O backplane perspective.
The 'H' series drives also use a totally different boot rom than MAC
(13037) disks. I have also heard that
you cannot mix ICD (H-series) drives on the same bus as CS/80 disks as
well, but this is more of a rumor
than a fact, it may be that HP did not support this with their drivers
but it may be electrically possible.
Eric Smith wrote:
Jay wrote:
Example: I have a 13037 pca card, going to a 13037
disc controller
subsystem, which has both 7905 ICD drives on it, a 7906D, AND a 7906H.
Can the computer distinguish a 7906H attached to the 13037 box via HPIB
from an 7906D attached to the 13037 box by the "traditional" interface?
I'd like to think that because the 13037 box is an "intelligent"
controller,
they should look the same to the host.
This would be convenient for me, since it should be fairly easy to
write a program for a PC with an HPIB card to emulate a 7906H. If
anyone has any 7906H technical documentation, that is. I suppose the
7906H predates the Amigo, CS/80, and SS/80 specs, and probably had
some earlier and less sophisticated command set.