ARM7强实时嵌入式系统设计  

Design of Hard Real-time Embedded System Based on ARM7

作　　者：颜猛[1] 阮俊波[1] 金惠华[1] 

机构地区：[1]北京航空航天大学计算机科学与工程系,北京100083

出　　处：《计算机工程与应用》2005年第21期110-112,共3页Computer Engineering and Applications

摘　　要：强实时任务的处理必须在规定的时限内完成,本文围绕工程中时间关键的强实时数据请求任务的处理,基于理论分析和实验测量数据,详细对比了采用中断方式、同步串口SIO方式、DMA方式等四种解决方案,最终实现了满足工程需求的解决方案。For hard real-time system(or tasks),it is imperative that no deadline be missed.A feasible scheme is listed in this paper which meets the hard real-time data requirement task of a practical project.And besides,based on the analysis and the actual measure,four schemes adopted interrupt,synchronous IO and DMA are compared with each other here.

关 键 词：嵌入式系统 ARM7 强实时 DMA 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]