M9312 Bootstrap Questions

From: Frank Arnold <fm.arnold_at_gmx.net>
Date: Sun Feb 23 18:24:00 2003

cctech-request_at_classiccmp.org schrieb am 23.02.2003:
----------<snip>-----------
From: Jeffrey Sharp <jss_at_subatomix.com>
Subject: M9312 Bootstrap Questions

>
>First, I'm confused about what version of the module I have. My 11/34 user's
>manual (EK-11034-UG-001 '77) talks about a -YA, -YB, and -YF version of the
>board.
>
I also always wondered about this, and never found any clues. But don't bother,
its not very important. Those variation-codes just describe the situation of
the module at the time the first customer took them from the box, soon as you
change a prom or switch, its something else...

So just run the 9312 diagnostic from XXDP, it will print a nice summary for you
how the unit is momentarely configured and what its capabilities are. It will
also certify correct operation of your M9312 on top of that.

I hope you can boot anything else, do you have a DL11-W? You could use this
with a PeeCee emulated TU58 for diagnostics ect. If you need the Boot-prom for
TU58 write me off-list.


>My M9312 has no -Yx designator and has only one bootstrap ROM installed
>(756A9 for RK03/05/05J or TU55/56). The M9312 manual seems to make the most
>sense in this case, so I've been believing its side of the story. However,
>the DIP switch settings on my M9312 have me puzzled. Here they are:
>
> 1 2 3 4 5 6 7 8 9 10
> ON ON ON OFF OFF OFF OFF OFF ON ON
>
>This doesn't correspond to anything in either manual! According to the
>manual I'm trusting, this says to start executing at 765406 (in the console
>emulator ROM). It needs to be 765020 (with diags) or 765144 (without diags).
>
>Supposedly, the machine was functional when it was decommed, so my first
>instinct is to assume I am (or the docs are) wrong somewhere. However, its
>previous owner (another collector) was not able **IIRC** to get a register
>printout at power-up. So maybe the DIP switch is pointing to someplace that
>isn't a valid entry point. I don't have access to the complete M9312 print
>set, which would list the ROM contents.
>
>Should I reset the DIP switch to say 765020?
>

That depends on the physical socket-location where the 756A9 is plugged into.
Alternatively, you could use 773000 that will give you console-odt from where
you can interactively select the boot you desire.

Hope you get it to work,
Frank Arnold
Received on Sun Feb 23 2003 - 18:24:00 GMT