Re: Beginner questions about PCI.

[Bob Mathews <bobm@lsil.com>]

You will probably have to have code running on the Intel card which would pass
the information to the 860 card.  You will need to get a book or some reference
to using the PCI BIOS 32 bit services.  The easiest way would be to have your
code use the PCI BIOS call to find your DSP card by vendor and device id.  Then
your code would read the address registers of your device and pass the
information to your 860.
Another way would be to have your code directly  scan the PCI bus for your
device, but then you would need to find out how to generate config cycles and
IDSEL for your Intel board and backplane combo.

Regards,

Bob

Christophe.LINDHEIMER@tcc.thomson-csf.com wrote:

> Hi.
>
> Just starting a project with compact PCI on a rack including
> - an INTEL card with windows NT embedded
> - a MPC860 card
> - a DSP card.
>
> The Intel is just here to initialize the PCI cards.
> I need to make a communication between 860 & DSP.
>
> How the 860 card can know the adress of the DSP card ?
> Is there a mechanism during the PCI initialisation that allows that ?
> Do I have to add a peace of code during the NT init to send thoses addresses
> to the others cards ?
>
> Thank you.
>
> Chris
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