基于PXI总线高速数据传输卡的设计 

Design of High-speed Data Transmission Card Based on PXI Bus

摘要:

为了实现数据采集存储设备产生的高速、大容量地数据能够快速、可靠、远距离地实时传输,提出了以PXI系统为平台,采用单一周期和线性突发模式相结合的总线访问方式,以PCI9054作为“桥接”芯片,高速FPGA为微控制器,结合LVDS及高速光纤传输技术的总体方案设计;经实践测试,传输数据正确可靠,实现了177 Mbps长距离通信速率。

Abstract:

For the purpose to realize high-speed ,storage of huge data generated by stored acquisition device real-time transmission fast and reliably over a long distance ,a scheme is proposed to solve this problem ,which adopted the new bus access combining single cycles with burst mode ,used PXI system as the platform,PCI9054 as the “bridge” chip and high-speed FPGA as micro controllers and combined LVDS with high-speed optical fiber transmission technology .The result is to achieve the rate at 177Mbps with accuracy by means of practical test.