Hi everyone,

I am now implementing a master PCI core in FPGA, and i want to
know is it works by directly writing data to the memory of the graphic
card. First, i use windriver to check out the base address of memory of
the graphic card, then pass it to my PCI core and initiate a "write". I
success in handling the signals like GNT#,DEVSEL#, TRDY#...etc. And
the return signal of the core tell me that it finish the operation . But the
memory of graphic card didn't change any value. (If success, the colour
on the monitor should change immediately) . I would like to ask is my
testing procedure logical and possible? My fpga pci core board is pluging
on the 9 th layer of PCI and the graphic card is pluging on the 10th
layer (more lower than my core board), is this affect transfering data
between them?

Also , except changing the value on the "command" of configuration
space, any other register i need to set value so as to tell the mother
board that there is a master PCI on my board?


Thank a lot.


TOM