基于Virtex-6的PCI Express高速采集卡设计

摘要

A design of PCI Express high-speed data acquisition card was presented to improve the data transfer rate and to suitable for be the requirement of mass data interactive processing. The hardcore of Virtex-6 embedded PCIE protocol can fulfil the whole PCIE layering protocal and achieve the communication with upper computer. A DMA controller as a data transmission master-control unit of acquisition card was devised to complete the high-speed data transmission solution based on PCI Express bus. The software system of the host includes drivers and application software. The experiment result indicates that the acquisition card can perform real-time acquisition of infrared images stably and reliably.%为了提高数据采集速率,适应大数据量交互处理要求,介绍了一种应用Virtex-6芯片的PCI Express高速采集卡设计.Virtex-6内嵌PCIE协议硬核能完成完整的PCIE分层协议,实现与上位机通信.设计了DMA控制器,作为采集卡数据传输主控,实现基于PCI Express总线的DMA高速数据传输方案.主机软件系统包括驱动程序和应用软件2部分.经实验测试,该采集卡能完成对外部高速数据的实时采集,性能稳定可靠.