On Mon, Jun 4, 2012 at 1:45 AM, Holm Tiffe <holm at freibergnet.de> wrote:
There is a manual for the UC07/08 on the net, it is
one of the first hits
when you try to google.
Right. Found that with no problems, though their own docs describe
the UC07 as a quad-height Unibus card - I'm sure that's just an
ancient cut-and-paste error.
All the settings are in there; that's the important part. I can check
if it's strapped to share the bus with an RQDX3, a common arrangement
(to keep the floppies active). I think that would make the first
drive on this card DUB0: when booting to VMS, but ultimately, except
for typing habits, it doesn't matter what the drive name ends up as.
Haven't found anything regarding differences
between versions jet....
I would be interested to hear any stories or if anyone happens to have
Release Notes or ECO sheets for different ROM versions. ISTR the
processor on this is an 8031, so it's not impossible to decompile and
diff the different ROM versions, but it's probably not worth the time.
guessing there isn't a lot of info out there to attempt to see if
it's possible to "convert" an SQ3703A to an SQ3706A in the field, but
if anyone knows anything about both boards, I'd be game to try if it's
EPROMs or PALs or whatever.
Found almost nothing for them.
Me either - just 3rd party and eBay sellers (with some listings under $100).
I have a board LAbeled SQ703 where the 03 is on a
paper label and the SQ7
is printed on the board. Have repaired it sometime, it is working as TMSCP
controller. It has an 10pin Connector for an Terminal to set it up on the
Interface connector side. I remember that I put the rom image from a 706 on
it (shadoo sent me one) but it doesn't work as 706.
Shame it isn't that easy, but I rather expect it's a ROM and PAL
difference, since MSCP and TMSCP controllers use different address
ranges. Any differences in SCSI command sets from tape to disk drives
would be a firmware issues; any differences in bus interaction would
be (mostly?) PAL issues.
I know that there is a 739 that can make both, MSCP
Right. Just like the 3703A and 3706A were replaced by the more flexible 3709A.
Since I don't _need_ SCSI TMSCP, it reduces my interest in laying
hands on a BA4000-type chassis. I do have that KDJ11 with the S-box
handles, so I'm more likely to mod that than go with an S-box (I have
a stash of real DEC Qbus handles from the place where we made Qbus and