19 Apr
2002
19 Apr
'02
1:40 a.m.
"Carlini, Antonio" wrote:
Thanks for the pointers, Antionio - even though I have a "Grey Wall" it's
nice
to be able to update the information. When I consulted the Wall I found next to
nothing on the DRV11, but I shall look in the 7.2 socs now that I know where
they are!.
Thanks once more,
Dave
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...
The necessary manuals are all available at:
http://www.openvms.compaq.com:8000/
Start with the OpenVMS VAX Device Support Manual
(
http://www.openvms.compaq.com:8000/73final/documentation/PDF/OVMS_VAX_SUP_GD
.pdf )
and the OpenVMS VAX Device Support Reference Manual
(
http://www.openvms.compaq.com:8000/73final/documentation/PDF/OVMS_VAX_SUP_GD
.pdf )
Both of these are now in the archived section.
The second one of these is basically
an introduction to writing a device
driver for OpenVMS VAX and
includes probably all the info
you need for the Qbus mapping
in Chapter 14.
The Coinnect to Interrupt stuff in
Chapter 21 may be a useful introduction
if you've not done a full driver before.
It will show you how to map the
registers and respond to device
interrupts. Once you can do that
you should have the hang of talking
to devices on the Qbus and can move on
to doing a driver proper.
Antonio