Re: Reset of a PCI card in a rack.

["Peter Marek" <peter.marek@marekmicro.de>]

Christophe,

see my comments below....

Peter Marek
General Director
MarekMicro GmbH
Kropfersrichter Str. 6-8
D-92237 Sulzbach-Rosenberg
Germany
Phone: 049 - 9661 - 908 - 210
Fax:      049 - 9661 - 908 - 100
----- Original Message -----
From: <Christophe.LINDHEIMER@tcc.thomson-csf.com>
To: <pci-sig@znyx.com>
Sent: Friday, October 13, 2000 5:15 PM
Subject: Reset of a PCI card in a rack.


> Hi
>
> I am working with a cPci rack with a CPV5350 ( with PII, os = NT ) & a
> CPV3060 ( with 860, os = vxWorks ).
> When I power up my rack, NT shares the memory to give a address to the
> CPV3060.
> The CPV3060 uses an Intel 21554 as pci bridge.
>
> I try to access to the CPV5350 memory from the CPV3060, and it works !
>
> But when I reset my CPV3060 card, the informations in the 21554 are
erased.
> As I don't reset the CPV5350, NT doesn't do anything to reconfigure my
> 21554.
> So of course when I try to read memory it doesn't work.
>
> 1) Is there a way to ask NT to make a new pci configuration ? ( I doubt a
> lot :-))

No, NT isn't a plug and play system. From the system point of view,
resetting the config space of a CPCI board is just like hot plugging a board
into a system. You need hot plug support to get rid of your problem.

>
> 2) Should the CPV3060 make itself the configuration of the 21554 on a non
> power up reset ( but I have to remember my adress ) ?

The CPV3060 should not reset the 21554 if there's a local reset. That's it.

>
> Thanks