这是在开发RFID读写器中必不可少的部分，当你在写程序时，必须考虑到协议中的算法，还有协议中的数据格式，他也限定了程序中的控制语句-This is in the development of RFID reader an indispensable part of, when you write procedures, must take into account the agreement of the algorithm, there is agreement in the data format, he also defines the process control statement