Subject: Re: A24 access with 32MB onboard?
To: None <Henning.Kiel@physik.uni-dortmund.de>
From: Steve Woodford <firstname.lastname@example.org>
Date: 04/02/2004 15:07:41
On Friday 02 April 2004 2:37 pm, Henning.Kiel@physik.uni-dortmund.de
> I need A24D8 access. How can I get that?
According to the Motorola docs, the VMEchip2 cannot do D8
local-bus->VMEbus transfers. It supports D8 in the VMEbus->local-bus
Note that the docs are ambiguous in a few places, and it looks like when
I implemented the VMEchip2 driver, I assumed D8 was possible. I'm now
sure this is not the case...
> So, master#1 is A32 and master#2 is A24.
> But how do I know which Dxx that is?
D16/D32 is selected through bit 7 of the 'Master Control #n' setting.
When it's zero, D32 is enabled. Else you get D16.
> I need A24D8 access for certain card.
Not possible, I'm afraid.