基于LEON3的中央控制器设计及EDAC功能实现  

Design of on-board Computer Based on LEON3 and Realization of EDAC

作　　者：周定江[1] 金明河[1] 任伟[1] 禹超[1] 

机构地区：[1]哈尔滨工业大学机器人技术与系统国家重点实验室,黑龙江哈尔滨150001

出　　处：《机械与电子》2011年第10期57-60,共4页Machinery & Electronics

摘　　要：针对目前空间机器人中央控制器运行速度较低、实时控制性弱等缺点,设计了基于LEON3处理器核的中央控制器,用做空间机器人控制的初步研究。同时,为了解决太空环境中电子控制系统中存储器易出现单粒子翻转效应(SEU)的问题,设计了一种基于Hsiao码的EDAC电路,以实现"纠一检二"(SEC-DED)的基本功能。使用VHDL语言描述该EDAC功能,使其兼容LEON3的AM-BA2.0总线,通过仿真试验验证了电路的可靠性。For solving the disadvantages of low performance and weak realtime control of normal on - board computer for aerospace robots, designed a new on - board computer based on LEON3 pro- cessor core, which can be used for preparatory study at aerospace robot control. Meanwhile, designed an EDAC circuit based on Hsiao code to solve the SEU problem of control system＇s memory in the aerospace environment, achieved the basic function of SEC - DED. Describe the EDAC model into VHDL language and make it compatible to AMBA 2.0 bus of LEON3 core,then simulate this EDAC model to testify its reliability.

关 键 词：中央控制器 LEON3 单粒子翻转效应 EDAC 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]