ARM嵌入式系统中双口RAM的驱动开发及应用  

Application and driver development of dual-port RAM in embedded system

作　　者：张震[1] 李淑秋[1] 

机构地区：[1]中国科学院声学研究所

出　　处：《微计算机信息》2007年第03Z期134-136,共3页Control & Automation

摘　　要：基于ARM的RISC处理器广泛应用于各种数字系统中.本文以AT91RM9200为系统平台,设计了一种基于双口RAM的实时数据接口,针对双口RAM的“乒乓”传输方式在Linux2.6下设计并开发了其驱动程序,最终实现了数据源与处理器间不间断、快速的数据传输。RISC processors based on ARM are wildly used in various digital systems. This article took AT91RM9200 as system platform, and designed a real-time data interface based on dual-port RAM （DPRAM）, and also developed the driver for LintLx 2.6 to implement the ＂Ping-Pong＂ transmission of the DPRAM. Moreover, continues and fast data transmission between data source and processor was implemented.

关 键 词：嵌入式系统 双端口RAM LINUX2.6 驱动程序 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]