USB3.0在存储测试系统中的研究
发布时间：2018-08-26 16:32
【摘要】：USB接口是一种总线接口标准，以其高速、稳定、易于扩展、兼容性强和即插即用等特点，赢得了市场认可并得到普及，已经广泛应用于数据传输、图像采集等领域。2008年推出的USB3.0协议，它规定了计算机与USB设备的最大传输带宽高达5Gbps。 近年来，本实验室开发了以GB为单位的大容量存储测试系统，而海量存储测试系统也已提上研发日程。针对两种存储测试系统与计算机的数据交换问题，提出并设计了USB3.0数据传输接口，以克服现有接口数据传输较慢的缺点，并验证了系统的可行性。 本论文阐述的内容包括以下几个方面： 1．分析了本实验室测试系统接口的特点，综合比较各种高速接口的优缺点，并且介绍了USB3.0总线技术的相关协议和特性； 2．基于课题的研究内容和目的，选用USB3.0芯片CYUSB3014作为USB3.0控制芯片，构建硬件系统框架，绘制硬件原理图，，并按照高速电路PCB设计的要求和USB3.0超速设备PCB布局布线要求绘制PCB版图。开发USB固件程序，设置USB设备的各种描述符，设置端点和DMA传输通道，设计GPIF Ⅱ状态机。为USB3.0设备安装设备驱动程序，并开发上位机应用程序，提供人机交互界面； 3．设计了USB3.0接口测试方案，根据USB3.0芯片上GPIF Ⅱ接口工作在SLAVEFIFO模式下的逻辑时序要求，用VHDL硬件描述语言对下位机主控芯片FPGA编程，协调数据传输，最后完成测试。
[Abstract]:USB interface is a bus interface standard, which has won market recognition and been widely used in data transmission because of its high speed, stability, easy to expand, strong compatibility, plug and play and so on. Image acquisition and other areas. In 2008, the USB3.0 protocol was introduced, which specifies the maximum transmission bandwidth between computers and USB devices as high as 5Gbps. In recent years, a mass storage test system based on GB has been developed in our laboratory, and the mass storage test system has been put on the research and development agenda. Aiming at the problem of data exchange between two storage test systems and computers, a USB3.0 data transmission interface is proposed and designed to overcome the shortcoming of slow data transmission in existing interfaces and to verify the feasibility of the system. The contents of this paper include the following aspects: 1. The characteristics of the test system interface in our laboratory are analyzed, the advantages and disadvantages of various high-speed interfaces are comprehensively compared, and the related protocols and characteristics of the USB3.0 bus technology are introduced. 2. Based on the research content and purpose of the subject, the USB3.0 chip CYUSB3014 is selected as the USB3.0 control chip, the hardware system frame is constructed, and the hardware schematic diagram is drawn. The PCB layout is drawn according to the requirements of PCB design of high speed circuit and PCB layout of USB3.0 overspeed equipment. Developing USB firmware, setting various descriptors of USB devices, setting endpoints and DMA transmission channels, and designing GPIF 鈪
本文编号：2205498
[Abstract]:USB interface is a bus interface standard, which has won market recognition and been widely used in data transmission because of its high speed, stability, easy to expand, strong compatibility, plug and play and so on. Image acquisition and other areas. In 2008, the USB3.0 protocol was introduced, which specifies the maximum transmission bandwidth between computers and USB devices as high as 5Gbps. In recent years, a mass storage test system based on GB has been developed in our laboratory, and the mass storage test system has been put on the research and development agenda. Aiming at the problem of data exchange between two storage test systems and computers, a USB3.0 data transmission interface is proposed and designed to overcome the shortcoming of slow data transmission in existing interfaces and to verify the feasibility of the system. The contents of this paper include the following aspects: 1. The characteristics of the test system interface in our laboratory are analyzed, the advantages and disadvantages of various high-speed interfaces are comprehensively compared, and the related protocols and characteristics of the USB3.0 bus technology are introduced. 2. Based on the research content and purpose of the subject, the USB3.0 chip CYUSB3014 is selected as the USB3.0 control chip, the hardware system frame is constructed, and the hardware schematic diagram is drawn. The PCB layout is drawn according to the requirements of PCB design of high speed circuit and PCB layout of USB3.0 overspeed equipment. Developing USB firmware, setting various descriptors of USB devices, setting endpoints and DMA transmission channels, and designing GPIF 鈪
本文编号：2205498
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