"Carlini, Antonio" wrote:
> > 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
Received on Fri Apr 19 2002 - 01:34:14 BST