Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (27): 108-110.

• 产品、研发、测试 • Previous Articles     Next Articles

Loongson 2E based embedded module design

CAI Ye1,2,WU Shao-xiao3,SHI Gang1   

  1. 1.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100080,China
    2.School of Graduate,Chinese Academy of Sciences,Beijing 100080,China
    3.Capital Normal University,Beijing 100037,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-21 Published:2007-09-21
  • Contact: CAI Ye

龙芯2E嵌入式处理器模块设计

蔡 晔1,2,吴少校3,史 岗1   

  1. 1.中国科学院 计算技术研究所,北京 100080
    2.中国科学院 研究生院,北京 100080
    3.首都师范大学,北京 100037
  • 通讯作者: 蔡 晔

Abstract: The design of an embedded processor module is introduced.This module uses Loongson 2E as the CPU and a self design northbridge.It can work alone on board flash and use a serial port as the terminal.It also has small size and two expansion interface:PCI and LOCAL BUS which are used as daughter card in other embedded systems.The key technologies of the design and system expanding method are discussed in this paper.

Key words: Loongson 2E, embedded system, PCI, LOCAL BUS

摘要: 介绍了一款嵌入式处理器模块的设计,该模块采用龙芯2号增强型处理器,并针对嵌入式应用特点自行设计了北桥。模块体积为100 mm×66 mm,板载FLASH和DDR内存,可独立引导系统内核工作,利用串口作为系统终端。实际使用可作为嵌入式系统子卡使用,板载了32位PCI总线接口和32位LOCAL BUS接口,用户可根据实际需求来进行系统功能扩展和二次开发。介绍了该模块设计中的关键技术以及系统扩展方法。

关键词: 龙芯2E, 嵌入式系统, PCI, LOCAL BUS