I'm implementing a PCI104+ board which will have the opencores PCI bridge core. I've started with the suggested layout from Alteras PCI Megacore. But the choice of pins does not lend to a really clean layout. If I swap some of the pins around it will clean up quite a bit. I'm wondering if I'm asking for timing problems if I do this. I'm only planning to run the PCI at a leasurely 33Mhz, so I'm guessing it won't be a problem, as long as I keep it in the same pair of banks (5 & 6). Any thoughts or suggestions?
Many thanks
Joey