Where can I find the source code for the FPGA board?

The NDI Advanced SDK contains the VHDL source that is available for the NDI codec cores. The low-level encode and decode functions are currently provided as an encrypted library.

Source code for the FPGA examples can be found in the fpga_reference_design directory which includes the following content:

Filename	Contents
README.md	High level overview of the provided example projects
README.uSD.md	Details on using the prebuilt uSD images
CHANGELOG.md	List of notable changes
src/cpp	Software source code and example projects
src/fpga	Hardware design files and example projects
linux_kernel	Projects to build kernel and boot loader
os_uSD	Scripts to generate root filesystem and bootable uSD images