这是PID算法的VHDL实现，详细说明了如何实现PID算法！-This is the PID algorithm VHDL implementation, a detailed descr iption of how to realize PID algorithm!

pid算法中的增量式pid类型算法，偏差计算模块的详细程序-Type pid algorithm of incremental pid algorithm, deviation calculation module of the program in detail