本程序是用于通用同步和异步串行接收器和转发器（ＵＳＡＲＴ），使用中断方式异步接收和发送数据通信源的程序文件。-this procedure is common for serial synchronous and asynchronous receiver and transponder (USARTs), the use of asynchronous interrupt receive and transmit data communication source program files.