基于PCI Express总线的数据采集设备实现

PCI Express是最新的总线和接口标准,具有数据传输速率高,支持点对点传输以及热插拔等特点.首先,介绍PCI Express总线的发展与体系构架.然后结合采用Xilinx公司的FPGA与PHY器件设计采集设备的过程,详细介绍硬件系统的电路设计,以及采用Xilinx Pipe Core实现PCI Express物理层、链路层、传输层和使用winDriver开发简单的驱动程序.结合PCI Express总线设计的采集设备,整体性能可以显著提高,其必将取代以往各种总线的数据采集设备.

Realization of Data Acquisition Device Based on PCI Express Bus

PCI Express is a new bus and interface standard.It supports high speed data transmission,point to point connection and hot plugging.This paper introduces the development and structure of PCI Express bus firstly.In the process of acquisition device design,the solution is chosen by using Xilinx FPGA and PHY chips,then the hardware system design is realized in details.Describing the physical layer,link layer and transaction layer of PCI Express in Xilinx Pipe Core.And then the simple driver program development is given by WinDriver.Data acquisition device based on PCI Express bus can develop the performance and replace the acquisition device based on other bus.