Implementing a PCI Express interface for the Arria GX Development Kit

Hi,

I'm a grad student using an Arria GX development kit to see if I can speed up short DNA sequence alignment to the human genome at the Genome Sciences Centre in Vancouver.

I have a lot of experience with FPGA's before but I've never used the PCI Express bus before.

I'd like to implement a simple PCIe interface. I'm using the PCI Express Compiler v7.2 and Quartus II v7.2. I've managed to successfully build and run the "chaining_dma" design supplied with the Arria GX development kit. I'm also familiar with the PCI-Express Compiler from reading the documentation.

Does anybody know of any good tutorials that will walk me through the process? Preferably they would also include driver development. I am having trouble doing this from the documentation alone.

Alternatively, does anyone know of any simple example designs I can adapt? Just something that will let me control the LEDs on the board over the PCI Express interface would be useful, I could adapt it for my application myself.

Adam