19 Aug
2016
19 Aug
'16
noon
On Aug 19, 2016, at 2:55 PM, Douglas Taylor
<dj.taylor4 at comcast.net> wrote:
On 8/19/2016 12:19 PM, Paul Koning wrote:
Yes, it is an MSCP disk controller, and it seems to work OK. I boot from it and
the CSR is at the standard 1st address, it is connected to a SCSI2SD board.
I think you have a good point about CSR addresses. There is a CONFIGURE tool that tells
you what set the addresses to for a particular collection of options, I need to run that
and then check that all the devices are set to the proper addresses.
I suspect that I don't see MUA0 show up because the tape drive is not working
properly.
To make matters confusing, there's an aspect of floating CSRs I did not mention
before. Some devices -- MSCP disk is one, TMSCP tape also I think -- have floating CSRS
for the second and subsequent units, but the first is fixed. Others, like the DHV11, are
all floating (including the first unit).
paul
On Aug
19, 2016, at 11:58 AM, Douglas Taylor <dj.taylor4 at comcast.net> wrote:
So you added a "Viking", if I see right. What sort of device is that?
If it's an MSCP controller, it would go into the UDA50 floating CSR position. DHV11
and TMSCP rank later than UDA50 in the floating CSR order, so if you added a MSCP
controller without adjusting the CSR address switches of those two cards, they would not
be correctly recognized as I discussed in my earlier mail today. The order of the cards
in the chassis does not affect that; device identification in Unibus and Qbus has no
connection to physical card position.
paul
...
It is the World Box, BA123 and I have
hardware manuals that came with the MVII.
When I got it this was the configuration:
Slot 1 - CPU
Slot 2 - Memory
Slot 3 - Bus Grant Card M9047
Slot 4 - DHV11
Slot 5 - TQK50 (upper) M9047 (lower)
Slot 6 - RQDX2
The new configuration is:
Slot 1 - CPU
Slot 2 - Memory (Clearpoint)
Slot 3 - Memory (DEC)
Slot 4 - DHV11
Slot 5 - TQK50 (upper) VIKING (lower)
Slot 6 - RQDX2
I even tried moving the cards:
Slot 1 - CPU
Slot 2 - Memory (Clearpoint)
Slot 3 - Memory (DEC)
Slot 4 - Bus Grant M9047
Slot 5 - DHV11
Slot 6 - TQK50 (upper) VIKING (lower)
Slot 7 - RQDX2
In the last two configurations VMS sees the disk/floppy controller just fine but not the
tape or serial ports.
Today I will pull the DHV11 and put it in the MV4000 and see if it shows up just to check
if the board is OK.
If there is none, or a faulty, TK50 drive attached the controller does VMS react to this?