On Sat, Oct 23, 2021 at 10:30 AM Josh Dersch <dersc...@gmail.com> wrote:
> > > On Sat, Oct 23, 2021 at 10:12 AM Nigel Johnson Ham via cctalk < > cctalk@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 > >
