计算机串口编写的通信软件有着十分广泛的应用,如电话,传真,视频监控.一般情况下,涉及到远程通信,自动控制,大型车辆控制系统、机器人控制系统等。特别PC机与单片机的串口通信在工业控制中非常重要.MSP430系列单片机是一种超低功耗的混合信号控制器，在控制系统以及数据采集系统中有广泛的应用，在8MHz晶体下运算能力达1MIPS（100万/秒），是传统51单片机远远达不到的，这使该系列单片机采用C语言开发有很高的效率，所以广泛应用工业生产,研究MSP430和PC的串口通信有着深远的意义.-Computer serial communication software written has a very wide range of applications, such as telephone, fax, video surveillance. Under normal circumstances, related to telecommunications, automatic control, large vehicle control systems, robotic control systems. Special PC and MCU serial communication is very important .MSP430 MCU is an ultra-low-power mixed-signal controllers in industrial control, is widely used in control systems and data acquisition systems, computing power at 8MHz crystal up 1MIPS (100 万/sec), is far less than the traditional 51 microcontroller, which makes these devices using C language development has a high efficiency, so widely used in industrial production, research MSP430 and PC serial communication has far-reaching meaning.