摘要： 以空调控制器上、下位单片机之间的通信为例，采用端口通信协议的设计方法及通信协议中波形、数据间的变换方案，设计了接收和发送数据的软件流程框图。

关键词: 端口通信, 通信协议, 半双工, 帧

Abstract: The methods of designing ports communication protocol and the scheme of transform between waves and data in communication protocol are adopted, with a case of communication between host and slave computers in air-condition controller. The software flowcharts are designed to realize receiving and sending data in the paper.

中图分类号: 

• TP274.2