* 1.请使用串口调试助手（Baud 4800、数据位8、停止位1、效验位无）做为上位机(发送)数据和(接受)数据，

* 请在字符串输入框中输入字符和数字(HEX),按发送按钮。观看接受窗显示情况.也可以用自动循环发送。-* 1. Use serial debugging assistant (Baud 4800, 8 data bits, 1 stop bit, no efficacy bit) as the host computer (send) data and (accept) data* in the string input box characters and numbers (HEX), press the Send button. Viewing the receive window display can also be sent automatically cycle.