How to implement PCI Express into my project.

I look at books about PCI and I found the configuration transaction of PCI device. Generally BIOS start this proceeding: There's 2 kinds of configuration transaction: type 0 and type 1.

PCI device has to respond to this transaction to BIOS recognizes it. The functionality of PCIe has the same procedure.

I'll start to look in the reference and examples files to see if there's a clue. If you look at a read or write transaction example files of PCIe Compiler (.vwf files) you1re going to see that before read/write command there's a configuration write/read transaction.