QBUS VAX and M7941 under VMS - info needed!

From: Dave Woodman <dave_at_naffnet.org.uk>
Date: Mon Apr 29 16:16:01 2002

Dave Woodman wrote:

> Hi all,
>
> I have a MicroVAX (BA123 enclosure, KA650 CPU) that I would like
> to put to work... to this end I have two M7941 (DRV11) parallel I/O
> cards that I would like to bring into service. The Micronotes say that
> this card is compatible with the 22-bit QBUS, and I have the Field
> Service print set so I can set the CSR and vectors to appropriate
> values.
>
> Of course, VMS does not have a driver for these cards, but I am
> not too frightened by the prospect of a little code - here lies the
> problem! Can anyone tell me just how this card maps into the I/O space,
> given the CSR? I would like to know just where to read from and write to
> in order the drive the beastie...
>

Thanks to information recieved from Antonio Carlini and Carl Lowenstein
these cards are now in service!

The driver is a version of OADRIVER that I trawled up, but which needed
some minor tweaks to its kitinstal.com in order to correctly install under
OVMS 7.2. If anyone else needs a copy (either of the kitinstal.com or the
kit itself) then I shall be glad to make it available.

    Cheers,

            Dave.
Received on Mon Apr 29 2002 - 16:16:01 BST