在ARM上模拟串行数据通信方法的研究  

Research on Simulating Serial Communications on ARM

作　　者：陈敏[1] 陶翼[1] 

机构地区：[1]武汉数字工程研究所,武汉430074

出　　处：《计算机与数字工程》2008年第6期171-174,共4页Computer & Digital Engineering

摘　　要：系统分析软件模拟串行通信的优缺点,提出一种在ARM上实现软件模拟串行总线接口的通用方法,并成功应用于某ATCA项目中。该方法根据外围器件提供的时序图,利用ARM处理器的IO资源来实现与串行接口芯片的数据通信。In this article, both the advantage and the disadvantage of serial communication simulated by software are discussed systemically. Besides, one common method of simulating serial bus by software, which has been successfully applied in a ATCA project, will be put forward. According to the timing diagram, the method uses I/O sources of processor to communicate with serial peripheries.

关 键 词：IIC SPI串行总线 软件模拟 ARM E2PROM 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]