Where can I get example PCB projects for Xilinx FPGAs? I found a project for Virtex4 in the Altium example projets. But I want professional boards containing PCI Express, FMC connectors, Gigabit Ethernet and ...
look around the web, look at routing guides for the various interfaces and look for dev boards.
Most designs like that, that people on here do will be covered by NDA's and so the data will be unavailable.