完整的RTX串口驱动程序测试源代码，实现简单的RTX串口通信方法，实现Windows在实时性上的不足。-RTX complete testing serial driver source code, to achieve simple RTX serial communication method, the realization of Windows in the real-time gap.

RTX Serial API通过调试可以用，大家可以试试(RTX Serial API It can be used by debugging, and you can try it.)