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双口RAM在嵌入式多CPU系统中的应用
引用本文:唐永辉,徐鸣谦,乌建中.双口RAM在嵌入式多CPU系统中的应用[J].制冷空调与电力机械,2005,26(1):39-42.
作者姓名:唐永辉  徐鸣谦  乌建中
作者单位:同济大学,机械电子工程研究所,上海,200092
摘    要:结合对控制系统可靠性、实时性以及资源共享的研究,阐述了双口RAM在嵌入式多CPU系统中的应用特色和关键技术;提出用双口RAM实现多CPU之间高速、可靠的并行数据通信和数据共享,可使整个系统软硬件设计简单方便,资源充分利用,可靠性和实时性也都比较高;给出一个双口RAM在嵌入式多CPU系统中的具体应用实例,证实了基于双口RAM的嵌入式多CPU系统有着强大的性能;将它与通用的工控机进行比较,展现了基于双口RAM的嵌入式多CPU系统的广阔应用前景.

关 键 词:双口RAM  嵌入式  多CPU  仲裁逻辑
文章编号:1006-8449(2005)01-0039-04
修稿时间:2004年8月16日

Application of Dual-Port RAM in Embedded Multi-CPU System
TANG Yong-hui,XU Ming-qian,WU Jian-zhong.Application of Dual-Port RAM in Embedded Multi-CPU System[J].Refrigeration Air Conditioning & Electric Power Machinery,2005,26(1):39-42.
Authors:TANG Yong-hui  XU Ming-qian  WU Jian-zhong
Abstract:Combining with the research of reliability, real-time and sharing-resource of control system, Dual-Port RAM's application characters and key technology in embedded Multi-CPU system are explained. And using Dual-Port RAM to carry out high-speed and reliable parallel communication and sharing data among Multi-CPU is put forward. The whole system's software and hardware is easy to design with fully exploiting resource and higher reliability and real-time feature. An example of Dual-Port RAM's practical application in Embedded Multi-CPU system is offered, and greatly high performances of based on Dual-Port RAM's Embedded Multi-CPU system are proven, and by comparing it with common industrial PC, excellent application prospect of Embedded Multi-CPU system of based on Dual-Port RAM is shown.
Keywords:dual-port RAM  embedded  multi-CPU  arbitration logic
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