9 Jan
2009
9 Jan
'09
2:51 a.m.
Peter Turnbull wrote:
If you jumper the CPU to enter ODT instead of executing the bootstrap,
what happens?
You never get the ODT prompt (the "@"). Never get anything on the
console, FWIW.
Or if you power things up with with the front panel
set to HALT?
Ditto.
If you attempt to execute the BDV11 bootstrap, what
happens
when it halts? Does the RUN light ever light, even briefly? What do
the lights on the BDV11 show?
The BDV11 shows all four LEDs on, and the RUN LED does blink momentarily
but then goes off.
So it's trapping immediately on startup. Either the CPU card is bad
(which I know isn't true) or it can't find any addressable RAM, or it can't
access the console SLU registers, or something is inhibiting the LSI11 from
running at all.
Do these same boards, in exactly this combination, work
properly in the
BA11-M?
Yep. And the same boards except the CPU, work in the same combination in
the BA11-N with a 11/23 CPU card. [It's one of the half sized 11/23 cards -
KDF11-A - without the onboard SLU and ROMs]
Exactly which version of the M7264 do you have?
If you mean the rev level, that I don't know off hand. It's one of the
ones with no actual onboard RAM, though (it has the space for it; the RAM
chips just aren't populated).
Bob