QBUS VAX and M7941 under VMS - info needed!

From: Dave Woodman <dave_at_naffnet.org.uk>
Date: Thu Apr 18 16:38:24 2002

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 in advance for your help,

                Dave.
Received on Thu Apr 18 2002 - 16:38:24 BST