所有的单片机都会涉及到232 或者485通讯,而通讯中又不可避免的出现错误.本例就给出了一个现成的校验软件.完成串口通讯,并且进行crc,累加和,异或和等效验结果-All of the single-chip will be 232 or 485 relating to communications, and communications also inevitable error. In this case on a given off-the-shelf software validation. The completion of serial communications, and to carry out crc, cumulative and, XOR and equivalent examination results