基于PCIe总线的主从CPU数据传输系统设计与实现  

Master-Slave CPU Data Transmission System Based on PCIe Bus

作　　者：龚行梁[1] 李德文[1] 陈龙[1] 王亮[1] Gong Xingliang

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《工业控制计算机》2024年第5期1-3,6,共4页Industrial Control Computer

基　　金：国网电力科学研究/南瑞集团有限公司科技项目“自主可控柔性直流输电控制保护平台研制及应用”(JS2101857)资助。

摘　　要：电力系统保护自动化设备存在多CPU板卡间高速数据传输和存储需求,介绍了一种基于PCIe总线接口实现的主从CPU数据传输系统。采用飞腾FT2000/4处理器为核心构建硬件系统,通过嵌入式Linux操作系统、PCIe设备驱动和应用程序部署软件系统,主CPU侧负责数据采集和处理,从CPU侧通过PCIe总线读取数据完成传输和存储功能。测试情况表明,该方案实现的系统稳定可靠,能够有效地满足高速传输、实时存储的应用业务需求,具有较高的工程应用价值。Power system protection automation equipment has high-speed data transmission and storage requirements between multiple CPU boards.This paper introduces a master-slave CPU data transmission system based on the PCIe bus.The hardware system is built with Phytium FT2000/4 processor,and the software system is deployed through the embedded Linux operating system,PCIe device driver and application.The main CPU is responsible for data collection and processing,and the data is obtained from the slave CPU through the PCIe bus to complete the transmission and storage.The test results show that the system implemented by this scheme is stable and reliable,can effectively meet the application business needs of high-speed data transmission and real-time storage,and has good engineering application value.

关 键 词：PCIe总线 主从CPU 数据传输 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]