说明：  matlab GUI编写的串口通信助手，通过一定的串口链接实现PC机之间的串口通信，包括数据的接收和发送。波特率，校验位个数，进制显示，发送周期可以进行设置。
(matlab GUI written in serial communication assistant, through certain serial link between the PC serial communication, including receiving and sending of data. The baud rate, parity number, hexadecimal, the the sending cycle can be set.)