RQDX3 as secondary MSCP controller

Charles Dickman chd at chdickman.com
Sun Sep 4 20:24:24 CDT 2016


Hi Mark,

On Sun, Aug 28, 2016 at 6:19 PM, Mark G Thomas <Mark at misty.com> wrote:

>
> The difficulty I am having is I would like to configure the system with
> both MSCP controller cards installed, so I can boot from either SCSI or
> floppy, preferably with the SCSI still starting at DU0 so my BSD2.11 CFs
> remain portable to my other system.
>

I have the same board configuration but with the quad wide KDJ11
processor and it works fine. So it may be something about the
processor and ROM instead of the RQDX3.

>
> Another oddness I noted was that with my original RQDX3 config, if I
> plug the M7516 ethernet card in, that breaks booting from floppy.
>

This shouldn't happen if the CSR addresses don't conflict.

Could it be something with the backplane?

-chuck


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