双口RAM在嵌入式多CPU系统中的应用  

Application of Dual-Port RAM in Embedded Multi-CPU System

作　　者：唐永辉[1] 徐鸣谦[1] 乌建中[1] 

机构地区：[1]同济大学机械电子工程研究所,上海200092

出　　处：《制冷空调与电力机械》2005年第1期39-42,共4页Refrigeration Air Conditioning & Electric Power Machinery

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。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.

关 键 词：CPU 嵌入式 双口RAM 实时性 系统 行数据 并行 具体应用 资源 展现 

分 类 号：TP338[自动化与计算机技术—计算机系统结构]