以智能频率计设计为背景,介绍了C++Builder 6.0环境下串行通信程序的开发,重点分析了第三方控件SPComm的工作机制。实践证明这种方法简单而切实可行。 关键词:智能仪器串行通信 SPComm控件多线程 Abstract: This paper introduce the development of serial communication program under the Borland C++ Builder 6.0 developing environment on the background of intelligent frequency meter design, with its emphases on the analysis of work mechanism of the third ActiveX SPComm. It has been tested that the method is simple and practicable. Keywords: intelligent instrument serial communication SPCommActiveX Multi-thread