说明：  TI公司MSP430G2553十六位单片机的串口驱动程序,可以自行添加对应的头文件即可使用.详细功能请自己添加到中断服务函数里.
(TI' s MSP430G2553 16-bit microcontroller serial port driver, you can add the corresponding header files can be used. Detailed functions of your own to add to the interrupt service function.)