27 Nov
2016
27 Nov
'16
9:53 a.m.
On 11/27/16 8:22 AM, william degnan wrote:
On Sat, Nov 26, 2016 at 5:35 PM, william degnan
<billdegnan at gmail.com>
wrote:
So you've verified that the
vectors on both your SLUs are correctly set?
On Nov 26, 2016 2:16 PM, "Josh Dersch"
<derschjo at gmail.com> wrote:
Follow up -
I don't think I have issues with my M9312, thanks for your help. There
are a number of candidate issues with my 11/40 which are causing my system
to not be able to initiate a bootstrap of the TU58 ROM using the M9312, or
bootstrap manually by using the front panel.
There is at least partial communication between the TU58 emulator (running
on Comm port 3) of my PC, the M7856's jumpers *I think* are correct to
serve as the serial card on the PDP 11/40 end. I'll note that the W8 setting described on
page A-2 seems to conflict
with
the description earlier in the manual (See
section 2.8.3) which indicates
it's only necessary for it to be IN if there is an address conflict
(which
is probably not the case). Leave W8 OUT.
(Leaving W8 in will disable
the
console PROM). Sorry for the confusion...
Thanks...I will leave out. The manual could be clearer.
Bill
I have the LTC turned off.
There is always more testing I can do, but I suspect my issues are not with
the serial card. Taken holistically, I think there is a DMA UNIBUS issue
somewhere. Just a hunch.
Can you elaborate on why you suspect this is the case?
Can you describe
your system in detail?
If anyone knows of or would be willing to make an XXDP TAP image compatible
with a 16K PDP 11 I can convert to download via PDPGUI.
PDP11GUI doesn't use
TAP files. You can use PDP11GUI to load individual
XXDP diagnostics into the PDP-11 without needing to boot XXDP at all.
J?rg has provided a wonderful database of diagnostics here:
http://www.retrocmp.com/tools/pdp-11-diagnostic-database. Find the
device you need to test and grab the diagnostic binaries, listings, and
documentation and go to town. (See section 5 of
http://www.retrocmp.com/how-tos/using-pdp-11-diagnostics/227-pdp-11-diagnos…
to see how that's done.)
Given I also have
issues initiating RL11 bootstrap (with known working equipment),
What issues are
you having? Does it hang? Halt? How are you
bootstrapping? I assume you know the RL11 and the RL02 and the pack
involved are all known-working?
- Josh
I have to
think I should focus on XXDP and somehow get it running using the means I
know that works, a direct CONSOLE download into core RAM, like I do with
BASIC. I have BASIC running in core at the moment, at least there's that.
Best
Bill