VB串口编程基础及实现

计算机串口编程在通信软件中有着十分广泛的应用，如电话、传真、视频和控制等。很多行业涉及远程通信、自动控制的情况下，通常会应用到串口通信技术。虽然目前串口编程应用很广泛，但对于从事串口编程初学者来说经常会觉得无从下手，对串口通信的原理不了解。本文主要介绍了串口作用、基本概念、编码方式、管脚定义、管脚接法，从这些基本知识着手实现串口编程，让从事开发串口编程的初学者从串口通讯原理到具体编程有一个清楚的了解。

Basis and Realization of VB Serial Programming

Computer serial port programming has been widely used in the communication software, such as telephone, fax, video and control, etc. And many industries related to remote communication or automation are al- ways involved with it. Although the computer serial port programming is applied widely, some greenhorns are con- fused to handle with this technology. They even do not understand the theory. This article provides a great intro- duction to the function of serial ports, the basic concept, the program mode, the PIN definition and the PIN connec- tion. With these basic theories to fulfill the serial programming skills and make those practitioners have a better idea from the serial programming theory to the specific programming.