RE: PC bios recognizing PCI card

["Austin Franklin" <austin@darkroom.com>]

This has been an issue.  There is nothing in the PCI spec (2.1 at least) for
how long a card has to become "configured", per se...and since your FPGA has
to take some time to configure, it is probably taking longer than the PC is
taking to go look for it.

What FPGA are you using, and how are you loading it?  Are there any "fast"
modes available to speed up loading?  You can try having the BIOS do the
"long" memory/POST test, and possibly delay the BIOS PCI configuration to
see if that's the problem...

Try going into BIOS "setup" mode also, and see if it recognizes it after you
then exit that...as it SHOULD re-check the PCI configuration after exiting
(possibly providing your exit does a reboot, if not, just hit the reset
button to "exit" the BIOS setup and see if that helps).

Austin Franklin
austin@darkroom.com


> -----Original Message-----
> From: Bhaskar Bose [mailto:bose@derivation.com]
> Sent: Friday, April 05, 2002 1:11 PM
> To: pci-sig@znyx.com
> Subject: PC bios recognizing PCI card
>
>
> I have a PCI interface running on an FPGA.
>
> For some reason, the PC does not recognize the card on boot.
> In the bios setting there is a flag for the PCI settings
> that is "Reset PCI Configuration Data".  When I set this,
> the PC sees the card.  This setting is disabled each time
> you boot.  So therefore, the next time I boot the system
> it does not see the card.  I have to set the "Reset PCI configuration
> data" flag each time.
>
> For some reason the BIOS is not seeing my PCI card.  On other PCs
> that have a different BIOS this is not a problem.
>
> Is there something PC related that I need to know about for PCI
> configuration process?
>
> -- Bhaskar
>
> ------------------------------------------------------------------------
> Dr. Bhaskar Bose                            Derivation Systems, Inc.
> bose@derivation.com                         5963 La Place Court, Ste 208
> Voice: (760) 431-1400 ext. 201              Carlsbad, CA  92008
>   Fax: (760) 431-1484                       U.S.A.
>  http://www.derivation.com
> -------------------------------------------------------------------------
>
>