Review on Arduino Vidor 4000 Controller Board by Terrance Fisher

It's too early for this board. Examples and resources are somewhat limited. If you want to work directly with the FPGA, you need to install and use Quartus in addition to the Arduino IDE and develop your own SPI code to make the FPGA communicate with the processor. The process of setting bitstreams is a bit complicated. The Arduino developers intend to provide pre-made templates that can be downloaded, but I haven't seen or used any of them yet. Although I learned a lot from working with the board and was able to build a simple frequency counter, I decided to switch to the Zynq board. If you do Arduino projects you probably don't need this, if you want to learn about FPGA there are better options.