How to use AN431 PCIe application software for ArriaV GX develpment kit.

As per the AN431, the design is only supported for ​Arria II or Stratix IV, so the driver may not compatible with the Cyclone V device. Another application note that you can refer to is AN 708. Here is the link: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an708.pdf

Regards -SK