PDP-11/73 booting!

David Betz dbetz at xlisper.mv.com
Tue Nov 15 22:08:40 CST 2005


I can't pull the MXV11 because it has the bootstrap and my console  
port. I did try it without the NS memory board but that didn't work  
either. In fact, RT-11 seems happy with that board as it reports the  
correct total amount of memory (1.5mb). I have the single quad board  
RL01/02 controller.

Here's the result of "SH DEV":

.SH DEV

Device    Status          CSR     Vector(s)
------    ------          ---     ---------
   DY      Resident       177170   264
   LD      Installed      000000   000
   SL      Installed      000000   000
   VM      Installed      177572   250
   NL      Installed      000000   000
   DL      Installed      174400   160

On Nov 15, 2005, at 11:03 PM, Allison wrote:

>>
>> Subject: Re: PDP-11/73 booting!
>>   From: David Betz <dbetz at xlisper.mv.com>
>>   Date: Tue, 15 Nov 2005 22:32:43 -0500
>>     To: "General Discussion: On-Topic and Off-Topic Posts"  
>> <cctalk at classiccmp.org>
>>
>> Yes, you're right. I did type DL not RL. That was a typo in my
>> message. Yes, the DL.SYS driver is on the boot disk (RX02), there are
>> no empty slots between the CPU and the RL controller. The slots are
>> filled as follows:
>>
>> KDJ11-A
>> MSV11-LK
>> MSV11-LK
>> National Semiconductor memory board (1mb)
>> RLV12
>> M8029 (RX02 controller)
>> MXV11
>
> I'd pull the MXV11 and the National card them bump every one up.
>
>> No fault light (and it isn't burned out), the white load light (with
>> the "0" on it) lights.
>
> Thats a good sign.
>
>> So, I suppose that means that the cables are probably bad? BTW, I
>> have the cable plugged into the top connector on the RL01 and the
>> terminator on the bottom. Is that correct?
>
> I don't think which is which matters as it's a parallel pass through
> and the drive select plug is the determining factor.
>
>> From RT-11 a
> show dev:
> or
>
> Resorc /A
>
> Should list the devices the system knows of.  It may be possible that
> one of the cards is not passing intgrant.  If the system doesnt show
> the RL02 either grant chain is broken or the controller is not there.
>
> Which controller?  Two board set or later single board m8061 one?
>
> The controller (RLV12) must be address at 17774400 (q22), 774400  
> (q18).
> The vector is 160.
>
>
>
> Allison



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