基于多FPGA的增强型SPI通信研究  

Research onimproved SPI communication based on multi-FPGA

作　　者：孙少华 屈盼让 肖鹏 李庆楠 Sun Shaohua;Qu Panrang;Xiao Peng;Li Qingnan(Xi'an AeronauticsComputing Technique Researchlnstitute,AVIC,Xi'an Shaanxi,710119)

机构地区：[1]中航工业西安航空计算技术研究所,陕西西安710119

出　　处：《电子测试》2018年第4期83-84,61,共3页Electronic Test

摘　　要：在多FPGA系统中,为了实现FPGA之间命令与数据的实时交互,FPGA间的通信速率必须大于系统要求速率。尽管SPI通信以其高速,稳定的特性被广泛应用于各类电子产品中,但是传统的SPI通信无论是三线制还是四线制单向数据线均只有一根,无法满足数据传输量大,实时性要求高的场合。本文在传统SPI通信的基础上,提出了一种增强型SPI通信方案,通过增加串行数据传输线的根数,提高了SPI通信的速率,以满足多FPGA系统中数据实时交互的需求。In the multi-FPGA system,in order to achieve real-time interaction with command and data between FPGA,the communication rate must be greater than requirement rate.SPI with its high speed and stable characteristics is widely used in various electronic products,but traditional SPI can not meet the high demand of data transmission in multi-FPGA system.Based on the traditional SPI this paper proposes an enhanced SPI communication scheme.Increasing the serial data line improves the transmission rate to meet the demand of real-time data interaction in the multi-FPGA system.

关 键 词：多FPGA系统 SPI通信 FPGA仿真 

分 类 号：TN791[电子电信—电路与系统]