I downloaded the HDL reference design, but it occurred with two errors.
ERROR:EDK:4235 - XPS was unable to determine the version of this project from the XMP file. This is either because the 'XmpVersion' tag is missing/empty in the XMP, or because your project was created with EDK version 3.2.2 or older. XPS cannot update this project to the latest version.
ERROR:EDK:3346 - Can not open project due to revup failure.
The downloaded HDL reference design is in attachment.