28 Oct
2015
28 Oct
'15
1:06 p.m.
Okay, I think I need to be looking at 774400, which doesn't return
anything. Also, the PDP11GUI has a handy RL11 dialog to show all of
the registers, which I think shows the same thing... It's not there!
I've double checked my switch settings, and tested the switches
themselves for continuity just to make sure they weren't bad (which
has happened to me before). Beyond something physically wrong with the
boards, is there anything else I might check?
On Wed, Oct 28, 2015 at 2:35 PM, Ben Sinclair <ben at bensinclair.com> wrote:
For 18 bit addresses, I assume I would look at 74400
instead? I get
177777 there.
I did just try moving the RLV11 boards below everything else (except
the BDV11), with the same results as before.
On Wed, Oct 28, 2015 at 12:29 PM, Johnny Billquist <bqt at update.uu.se> wrote:
--
Ben Sinclair
ben at bensinclair.com
On 2015-10-28 18:25, Ben Sinclair wrote:
--
Ben Sinclair
ben at bensinclair.com
I just tried to read 774400 from ODT, and it just gives the question
mark. So, I don't think it's seeing it at all right now! I'll try
moving it next.
I wonder if it really uses 18 bit addresses in the console.
Johnny
On Wed, Oct 28, 2015 at 11:46 AM, Ben Sinclair <ben at bensinclair.com>
wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
No magic smoke so far!
I think you had written something a while back that would test that
interrupt. Was that correct, or is there another diagnostic I can use
to test that?
The 17440 wasn't a typo, it's just my misunderstanding of how the
addressing works. I'll read the actual location later today and see
what I find!
On Wed, Oct 28, 2015 at 11:43 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
wrote:
>
> > From: Ben Sinclair
>
> > According to the Microcomputer Interfaces Handbook, my H9273
> backplane
> > should be all ABCD.
>
> Yup, that was one of the first things I checked - whilst realizing that
> if
> it wasn't, it was too late... :-)
>
> > Am I correct in that I shouldn't have any problem using the RLV11
> in
> > that backplane?
>
> Not that I am aware of.
>
> Noel
--
Ben Sinclair
ben at bensinclair.com