PowerPC与PC微机串行通信，通过CS850实验板的SMC端口与PC微机的串行口实现UART协议异步通信。PC机通过仿真终端程序实现字符输入和输出，并可实现文件传送CS850实验板上的SMC驱动软件实现ECHO操作，将从接收端口接收到的字符通过发送端口送出-PowerPC microprocessor and PC serial communication UART protocol to achieve asynchronous communication through CS850 test SMC board computer port and PC serial port. The PC terminal emulation program through character input and output, and can achieve file transfer CS850 test SMC board driver software ECHO operation received　the port received character sent by sending port