On 10/19/2015 12:39 PM, Johnny Billquist wrote:
Well, you did ask for "thoughts in the conversion", so I gave you
mine. Sorry if you felt they were unhelpful. I just thought the
"conversion" was basically a no-work. Programming proms is something I
have spent more time than I can count on, and is so routine that I
don't even think about it.
I didn't mean that in disrespect. The contents of what I posted was on
the page and I basically needed the binaries and needed some direction
as to which went where. I appreciate you taking time to reply, but am
coming from a lot less capability than you have. I do a lot of
computing and the like, but I've purposely not kept up with eprom
technology to the point that i can't reliably swear I can program them
right now.
There are only so many things one can keep up with and eproms were not
one that was cheap to follow, and I was more into EE type devices anyway.
I may need a favor by swapping you some of my eproms (I have a 12" x 12"
x 12" box of pulls) maybe to get you to make me a set for my board.
I've pulled out probably 500 and returned them to the original owner and
owe him more. but I do probably have a lot of the 27xx proms.
Do you think these are 27C or just straight 27 type eproms, and if so
what speeds? That is what I need to know too.
thanks
Jim
Johnny
On 2015-10-19 20:57, jwsmobile wrote:
On 10/19/2015 10:03 AM, Johnny Billquist wrote:
Not sure what you expect a "conversion" means. Creating new PROMs
imply finding actual proms, a prom programmer, the code to program
into the PROMs, and then just replace the proms on the card.
Only the last piece will actually require any modification of the
card, and I would expect them to be socketed anyway, so replacing
means just removing the old proms, and inserting the new ones.
That is basically what I said. I don't have one that isn't part of a
DecServer and i need images, or someone with a non DecServer to provide
them.
I guess you restated what I said. if you have one, I'd appreciate
copies.
I didn't post the original link from the top of this thread, you might
want to read it. I'm just stating what someone did back in the 2001
time frame and posted a page about the conversion and info on his
experiences.
The note also mentioned that you might want/need to install a pull-up.
But it would still be an extremely simple process. You just need the
right bits...
What I said.
Johnny
On 2015-10-19 18:28, jwsmobile wrote:
I would appreciate thoughts on the conversion of the processor to
normal
PDP11 eproms.
The page pointed to earlier has a mention of that too, but the poster
had access to another "real" KDJ and I am guessing copied that.
I don't have access to any version of the system with appropriate
eproms
and would appreciate any pointers to the binaries needed.
As to the condition most of the material is the result of moving it
from
where it was stored. It will be totally disassembled and tested
before
being brought back up. There is about 5 or 6 large deep freeze (for
reference) sized piles of material being sent for e-waste from the
place
that is pretty much just junk material under the weather.
Think of this as a Dusenberg rescued from a barn though.
thanks for all the suggestions and observations.
Next thing to go over is a Sun 4/260 "mini" tower. Gads those were
heavy. Back is still aching from moving that.
Jim
On 10/19/2015 7:32 AM, Ethan Dicks wrote:
On Mon, Oct 19, 2015 at 3:42 AM, Pontus Pihlgren
<pon...@update.uu.se>
wrote:
Interesting. I thought Tthe DECserver 550 was merely the big
brother in
the terminal server line. But it looks like it is essentially a
PDP-11/53 with 1.5MW of ram, you need new boot roms though. Pretty
nice.
Yep. It's essentially an S-box KDJ11 with different ROMs. I happen
to have a CPU board from one, but not the box itself.
One of these days, I plan to burn "real" PDP-11 ROMs and bring
2.11BSD
up on mine. That and my Pro380 are my only KDJ11 machines.
-ethan
