基于龙芯2F的CPCI-Hot-Swap技术研究与实现  

Design of CPCI-Hot-Swap Based on Loongson2F System

作　　者：齐劲松[1] 贾志强[1] 屈晔彬[1] 

机构地区：[1]中国兵器工业集团北方自动控制技术研究所,山西太原030006

出　　处：《测控技术》2014年第11期129-132,共4页Measurement & Control Technology

摘　　要：介绍了基于龙芯2F的军用嵌入式计算机系统搭载PLX6254桥、LTC1646电源芯片实现CPCI总线的热插拔技术。详细阐述了P1X6254-CPCI桥的硬件接口设计、电源可靠性设计、输入和输出电路的设计以及电源的损耗问题、安全性设计、PCI驱动设计等。实现了将龙芯2F作为可热插拔的PCI从设备挂载到主系统中并能稳定运行的目的。A method of CPCI-Hot-Swap system using PLX6254 and ITC1646 based on Loongson2 F is introduced.The hardware design of PCI-to-PCI bridge is elaborated,reliability design of power,input and output circuit design as well as power-loss problem,safety design,PCI driver design etc are discussed.Loongson2 Fsubsystem CPCI-Hot-Swap and running on OS stably are realized.

关 键 词：CPCI 热插拔 电源损耗 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]