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From: berg.o at skalar.com<berg.o@s...>
Date: Thu Sep 1 16:55:17 CEST 2005
Subject: [pci] pci 32/33 target
Hye people,

I've been working on a simple 32/33 pci target card for a couple of
weeks now, and I just can't get it to work.
I'm using an Altera Max II dev. board, and the quartus II software.

All I get are a whole bunce of warnings (1055), most of them about
registers stuck to ground or vcc, but this might have something to do
with the fact that I haven't connected my wbm/wbs to something. I have
however defaulted those signals to inactive (0).

When I try to boot the device, my pc just hangs.

I've set the tsu and tco timing constraints like this:
tco:
from>
pci_bridge32:u1|pci_io_mux:pci_io_mux|pci_out_reg:ad_iob0|dat_out~reg0
to>
AD0
value>
11ns

tsu:
from>
AD0
to>
pci_bridge32:u1|pci_in_reg:input_register|pci_ad_reg_out[0]~reg0
value>
7ns

and so on..


Isn't the configspace suppose to be reachable even without the backend
connected?
I'd be happy just to see the card recognized by the bios while booting!
Can someone give me a brief explanation about the possible problem here?

btw: i'm not an expert on pci and/or vhdl, guess advanced is more
appropriate..

Kind regards,

O. v.d. Berg
Embedded system designer
Skalar Analytical BV