https://blog.wongcw.com/2021/08/26/lattice%e5%8d%8a%e5%b0%8e%e9%ab%94%e5%85%ac%e5%8f%b8%e7%99%bc%e4%bd%88%e4%b8%bb%e6%89%93%e8%bb%8a%e8%bc%89%e6%87%89%e7%94%a8%e7%9a%84certus-nx-fpga%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88/