说明：  串口通信是一种广泛使用且实用的通信方式，介绍RS232 串行通信的联结方式，研究利用 C 语言编程实 现 RS232 串行通信的过程．结合实际应用，在约定双方串行通信协议的基础上，运用 C 语言开发的串行通信软件，实现了企业生产线产品测试平台和嵌入式 EMB 主控机的串行数据通信．
(Serial communication is a widely used and useful means of communication, presentation RS232 serial communication way linking examine the use of C language programming RS232 serial communication process. Combined with practical application, the two sides agreed serial communication protocol based on the use of C language development of serial communications software to achieve a production line product testing platform and embedded EMB master serial data communications.)