很好用的串口收发FPGA程序，代码简洁，想要的朋友们可以直接引用到子程序里，可以直接使用，经过多年工程应用了。告别大段的繁琐的官方串口程序吧。-Good use of serial transceiver FPGA program, code simple, and friends want to be a direct reference to the subroutine can be used directly, after years of engineering applications. Bid farewell to a large segment of the cumbersome official serial procedures it.