基于FPGA的高速USB协议分析仪的设计  

Design of High Speed USB Protocol Analyzer Based on FPGA

作　　者：张静[1] 叶小芹[1] 

机构地区：[1]河海大学文天学院,安徽马鞍山243031

出　　处：《绥化学院学报》2016年第9期152-154,共3页Journal of Suihua University

摘　　要：USB协议分析仪是一种用于分析和监控USB总线协议的仪器,它包括采集主机及分析软件两个部分。可用于USB驱动开发、协议栈调试、协议符合性测试及总线性能分析等多个方面。针对现有的分析仪价格昂贵、采样丢包和无法进行长时间采集数据等问题,设计了一种基于FPGA的高速USB协议分析仪,实现了对高速、全速和低速差分信号的实时采样和分析,利用硬件的并发处理特性克服了采样丢包的问题,而且内嵌大容量SDRAM,使得长时间采集数据成为可能,并且设计成本低。A USB protocol analyzer is an instrument for analysis and monitoring of the USB bus protocol. It includes collection host and analysis software. It can be used for the USB driver development and debug the protocol stacks, test the protocol conformance and bus performance analysis of several aspects. For existing analyzer is expensive and sampling problem such as packet loss, we designed a high-speed USB protocol analyzer based on FPGA, which realized with high speed, full speed and low speed difference signal real-time sampling and analysis, using the concurrent processing of hardware features overcome the problem of the sample packet loss, and embedded large-capacity SDRAM, making it possible to collect data for a long time, and lower design costs.

关 键 词：USB协议分析仪 FPGA 通用串行总线 USB控制器 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]