基于串行接口信号调制/解调的通信方案研究  

Study on the communication scheme of signal modulation and demodulation based on serial interface

作　　者：杨潇[1] 艾学忠[1] 翟玉文[1] 

机构地区：[1]吉林化工学院信息与控制工程学院,吉林副教授硕士132022

出　　处：《微计算机信息》2007年第26期148-149,251,共3页Control & Automation

基　　金：吉林省科技发展计划项目(200505258)

摘　　要：串行接口是单片机与外部设备的主要通信接口之一,串行通信在数据传输中占有重要的地位。针对单片机串行接口信号的桢格式,设计并实现了能够直接对其进行调制/解调的通信方案,详细地分析了调制电路和解调电路的原理,对确定电路参数的方法进行了说明,并通过实验验证了该方法的正确性。Serial interface is one of the major communication interfaces between MCU and peripheral equipment. Serial communication plays a very important role in the data transmission. According to the frame format of the signals from MCU serial interface, the communication scheme which can directly modulate/demodulate the signals from MCU serial interface has been designed and implemented. The principles of modulation and demodulation circuit are analyzed in detail. The method of determining the circuit parameters is introduced, and its correctness has been proved by experiment.

关 键 词：串行接口 通信 调制/解调 单片机 

分 类 号：TN919.3[电子电信—通信与信息系统]