On Fri, Jul 11, 2003 at 08:13:01AM +0100, Peter Turnbull wrote:
> The best solution is to use an RLV12.
Unfortunately I have no RLV12.
> However I vaguely remember
> seeing somewhere an ECO which involves cutting two tracks, to
> disconnect the signals the RLV11 puts on the BC1 and BD1 fingers
> (unless I'm thinking of some other device).
I can see the two small lines going to BC1 and BD2 on the M8013.
Do you know what these signals are used for?
If I see this correct, they don't go to the M8014. They just put some
signals onto the bus. So some sugery would solve the problem?
> That fixes the electrical
> problem, but whether you can find a VAX OS that knows to only use DMA
> in the bottom 256K of memory is another matter.
This would fit to NetBSD. NetBSD uses only one softwareinterface
for UniBus and QBus...
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
Received on Fri Jul 11 2003 - 04:58:01 BST