5 Jul
2002
5 Jul
'02
4:01 a.m.
On Thu, 4 Jul 2002, Megan wrote:
I'm betting it's as small as QBUS comes. It's a Q/Q backplane, with 4
quad-with slots. However, I could stick it into the backplane for my
VAXstation 3200, which should be 22-bit Q/Q for most of the backplane
(perhaps Q/CD for the top three quad-width slots).
The 'MSCP ESDI' board, part # "SCD-RQD11/EC" (I guess it's not a
DEC
part, even though it says "MFG UNDER LICENSE FROM DIGITAL EQUIPMENT CORP"
on the back, is in my VAXstation 3200, and runs a pair of 600MB-650MB
drives that appear to be ESDI. I've got a DECNA (i think) network
adaptor in my VS3200 I could try to use. Right now, I'm wanting to try
and re-use hardware I have instead of search for hardware that is hard to
find.
Also, is it possible/easy to change the M8044-BB board (8KW?) to have at
least 16KW if not 32KW of memory? That'd be a nice upgrade for the
machine if I can do it myself with 'stock' DRAMs.
-- Pat
I've got an embeded syatem based around an
LSI-11/2 processor board,
M8044-BB (8KW?) memory, pair of DRV-11's, a MDB eprom board and ADC
board. What do I need to do to make this into a functional PDP-11? I've
got a DEC MSCP ESDI controller (don't remeber the part #), DLV-11 (8-port
version) serial card, TQK50, and drives from my VAXstation 3200 I can
try to use in it. It's from my DPE 5000, the video part of which let out
a bunch of magic smoke being powered on - can't find any obvious burned
parts, but haven't checked the power supply yet. Still, it's worth more
to me as a LSI(PDP)-11 than a video effects box that I can't fix.
You haven't mentioned what kind of backplane it has (Q/Q vs. Q/CD),
whether it has 22-bit (I suspect just 18-bit) and how many slots. These will all affect what the suggestions.
Going with what you have, I might suggest upping the power from
an 11/2 to an 11/73 (KDJ11-A), which takes up no more room in the
backplane.
OK, well, I have an 11/2 CPU and not an 11/73 CPU. If you want to dontate
an 11/73 CPU, I'd be happy to take it off your hands. :)
First, however,
I'm sure I need DEC boot roms for it, or some other way
to get boot code into it. Does anyone happen to have some laying around
they could maybe send me an image of? Also, I'm on the lookout for a
RLV12 and berg cable to connect to the RL02 I have sitting around here..
I would suggest an MXV11-B, which gives you two serial lines, memory
and boot code in one dual-high board. Beyond that, the DEC MSCP board
is probably an RQDX(3?) and is not ESDI (I don't think there was an
ESDI board made by DEC... all the ones I got while inside DEC were
made by Andromeda -- the ESDC board). Finally, a DELQA for network
and you're all set.