HPI在主从式系统数据通信中应用  

Application of HPI in Data Communication of Master-Slave System

作　　者：朱世东[1] 张道信[1] 吴小培[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《计算机技术与发展》2006年第12期212-214,236,共4页Computer Technology and Development

基　　金：国家自然科学基金项目(60271024);安徽省人才资助基金项目(2004Z028)

摘　　要：数据通信是主从式系统设计的一个关键技术,HPI是TI DSP的一个重要外设,文中旨在介绍TMS320C54x中主机接口HPI在数据通信中的应用。介绍了数据通信的概念、HPI的结构及其工作原理。最后以TMS320C5402DSP为例,重点给出了一种DSP与51单片机通信的具体硬件连接方案和软件实现方法,并且给出了部分程序代码。从这种数据通信方案中,可以发现HPI所具有的一系列优点,对于复杂系统和更加灵活新颖的数据传输/共享设计具有一定的借鉴意义。Data communication is a pivotal technology in the design of master- slave system. HPI （host port interface） is a kind of important peripheral of TI DSP. The aim of this paper is to introduce the HPI of TMS320C54x and its application in data communication. The conception of data communication is introduced; the structure and principle of HPI are introduced in detail. In the end, taking TMS320C5402DSP as example, introduces the hardware connections and software applications when communicating with C51, and .also part of the procedure code was presented. From this scheme of data communication, may find out a series of advantages of HPI. For the design of complex system and flexible and novel scheme of data communication / share, there is a certain extent meaning of using for reference.

关 键 词：主从式系统 数据通信 DSP HPI 89C51 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TN919[自动化与计算机技术—计算机科学与技术]