Looking for info on memory

[Josh Dersch]

On Sat, Oct 23, 2021 at 10:30 AM Josh Dersch <derschjo at gmail.com> wrote:

>
>
> On Sat, Oct 23, 2021 at 10:12 AM Nigel Johnson Ham via cctalk <
> cctalk at classiccmp.org> wrote:
>
>> It is not possible to get ODT running without bank 0 memory.  All I get
>> is output of 173000 and the no ability to input.
>>
>
> How is your CPU board configured?  Based on the above, it sounds like it's
> set up to jump to a ROM bootstrap at power-up (at 173000) and I'm guessing
> given your current configuration that there isn't one.  Without memory
> present/functional, this may be confusing things further.  There are
> jumpers on the 11/23 CPU to select what the CPU does at power-up (see:
> https://gunkies.org/wiki/KDJ11-A_CPU).  Try setting it to drop directly
> into ODT instead.
>

Sorry, just realized I pasted a link for the 11/73 CPU config (same basic
idea, though).  Try this instead:
http://www.willsworks.net/pdp-11/boards#KDF11-BA.

- Josh


>
> - Josh
>
>