说明：  串口调试常工具，在AVR猎手检验工具基础上改进。可以计算累加校验和，异或检验和，CRC16，可以添加数据帧头帧尾（用于自定义协议的起始和结束标志），如果能集成在串口助手里面则更好，只是本人VB新手，串口助手写了一个，经常蹦愧，不好意思弄上来。
(Serial debugging tools often, hunters in the AVR on the basis of test tools to improve. Can calculate the cumulative checksum, XOR testing and, CRC16, you can add data header end of frame (for custom start and end signs agreement), if the assistant can be integrated inside the serial port is better, but I am novice VB , assistant to write a serial, often jumping ashamed, embarrassed to get up.)