Trying to get my RLV11 working

[Johnny Billquist]

On 2015-10-28 20:35, Ben Sinclair wrote:
> For 18 bit addresses, I assume I would look at 74400 instead? I get
> 177777 there.

Um? 74400 is 15 bits... :-)
18 bits would be 774400. But 22 bits would be 17774400. And 16 bits 
would be 174400.

I would primarily expect 16 bits addresses to be used on a KDF-11, but I 
could be wrong. Early revisions only supported 18 bit addressing, but 
later models supported 22 bit addressing. But how that is reflected in 
the micro-ODT on a KDF-11 I don't know. I don't even know if it's 
actually micro-ODT, or some more primitivt console mode on that CPU.
I haven't actually worked on a KDF-11 in about 20 years. I know the 
KDJ-11 better at this point. (Or the models with a physical front panel...)

> I did just try moving the RLV11 boards below everything else (except
> the BDV11), with the same results as before.

I feel that this is just random testing and moving stuff around, which I 
doubt is very helpful.

	Johnny

>
> On Wed, Oct 28, 2015 at 12:29 PM, Johnny Billquist <bqt at update.uu.se> wrote:
>> On 2015-10-28 18:25, Ben Sinclair wrote:
>>>
>>> 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:
>>>>
>>>> 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
>>>
>>>
>>>
>>>
>>
>>
>> --
>> 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
>
>
>


-- 
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