说明：  //电脑端必备RS232转RS485模块，否则无法进行直接的连接 //RS485之间通过双绞线连接，如果距离近，可以不使用120欧电阻匹配 //电脑端通过串口调试助手操作，先将数据由电脑发往开发板 //开发板板会将收到的数据再发送到串口调试助手，接收采用中断模块，发送用查询 //波特率更改请通过config.h文件，直接更改baud参数即可
(//PC necessary RS232 to RS485 module, otherwise can not be directly connected to// RS485 connected via a twisted pair, if close, you can not use 120 ohm match// PC via the serial port debugging assistant operation, the first then send the data sent from the computer to the development board// Development Board To Board will have before it the data to the serial port debugging assistant, interrupt module is received, sent with the query// baud rate change requests through the the config.h file directly change the baud parameters can be)