Arm linux 2.6.24 環境下，

可動態調整比特率(bound rate)。



操作方式：

./projector 115200 1　　argv[0]=projector,　　argv[1]=115200(baud rate),　　argv[2]=1(tty number)-Arm linux 2.6.24 environment, can dynamically adjust the bit rate (bound rate). Operating mode:./Projector 115200 1 argv [0] = projector, argv [1] = 115200 (baud rate), argv [2] = 1 (tty number)