这是友善之臂下的demo下面的一个串口通信的例子，该例子是基于linux下的一个简单的串口通信测试代码。-This is an example of a serial communication demo below under friendly arm, this example is based on a simple serial communication test code under linux.

ARM9_serial.rar Linux QT ARM Thread 串口收发实例-ARM9_serial.rar Linux QT ARM Thread serial read and write demo