2 Apr
2002
2 Apr
'02
8:59 a.m.
Sridhar the POWERful wrote:
Ok. I wonder what would happen if I stuck a DWBUA in the BI cage
of my
VAX 7000-650, and added a UNIBUS cabinet, then I were
to take a
Qniverter
and add a Qbus framebuffer?
I imagine you'd be carted off to the funny farm :-)
I assume you were not serious but just in case ...
Your path to the Qbus widgets would be:
LSB->XMI->BI->UNIBUS->QBUS
which I suspect is a tad tortuous even for
the normally well designed DEC stuff.
Bus adapters generally only work well
one bus down. Beyond that you start
to hit timing issues and other such trivia
such as locking.
As an aside, surely with a little bit of
thought you could get TURBOchannel
and PCI involved in there? How hard
can it be?
Antonio
2 Apr
2 Apr
9:11 a.m.
New subject: BK Logic Probe, DP-21
This is the BK Precision Logic Probe P/N DP-21. It is a 20 MHz unit, has
seen VERY little use, is in excellent condition, and includes the
original box and instructions! The current Digi-Key Catalogue price is
$35.00 This one is only $10.00 plus $3.50 Priority Mail Shipping in the
US.
3:27 p.m.
On Tue, 2 Apr 2002, Carlini, Antonio wrote:
Actually, I'm serious. 8-) But my original idea was to put a Qniverter in
a PDP-11/70, write some custom software, and use one of the PDP-11 OSes.
Sridhar the
POWERful wrote:
Ok. I wonder what would happen if I stuck a DWBUA in the BI cage
of my
VAX 7000-650, and added a UNIBUS cabinet, then I
were to take a
Qniverter
and add a Qbus framebuffer?
I imagine you'd be carted off to the funny farm :-)
I assume you were not serious but just in case ...
Your path to the Qbus widgets would be:
LSB->XMI->BI->UNIBUS->QBUS
which I suspect is a tad tortuous even for
the normally well designed DEC stuff. Bus adapters generally only work well
one bus down. Beyond that you start
to hit timing issues and other such trivia
such as locking.
Hmm. That sucks.
As an aside, surely with a little bit of
thought you could get TURBOchannel
and PCI involved in there? How hard
can it be?
One thing that might be interested is to see if I can find a PCI hose for
it, find source code for the PCI hose driver for a free OS (I'm pretty
sure that there is one out there somewhere), and try to write a VMS driver
for the PCI hose on OpenVMS/VAX? Then I could try to get a PCI
framebuffer working, but then how would I go about attaching a keyboard
and mouse?
Peace... Sridhar
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Antonio.Carlini＠riverstonenet.com -
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vance＠ikickass.org