串口助手

代码说明：

  在嵌入式开发和单片机开发，串口是必不可少是外设设备，串口可以用于调试程序的正确性，同样他可以运用于你的整个开发平台，因而知道如何利用串口调试助手是十分重要的。(In embedded development and MCU development, serial port is essential peripheral equipment, serial port can be used to debug the correctness of the program, also he can be used in your entire development platform, so know how to use the serial port debugging assistant is very important.)