一种PCI总线接口的数据接收卡设计  

Design on Data-receiver Card Based on PCI Bus Interface

作　　者：滑伟 

机构地区：[1]河北远东通信系统工程有限公司,河北石家庄050200

出　　处：《无线电通信技术》2013年第4期53-55,92,共4页Radio Communications Technology

摘　　要：针对单通道数据接收卡无法完成同时接收多路数据问题,在单通道数据接收卡设计理念基础上设计了一种三通道的数据接收卡,主要硬件逻辑采用FPGA、双端口RAM和PCI9054桥接芯片的组成,对三通道数据接收卡的工作原理进行了简单介绍,详细说明了FPGA主控器的设计过程。基于三通道数据接收卡的硬件组成,提出了在PCI局部总线与PCI总线进行数据交互时采用DMA和突发数据结合的传输方法,解决了计算机用少量的PCI插槽无法实现接收多路同步数据的问题,可保证数据传输的实时性及完整性,有效提高了高速数据传输时对PCI总线的利用率。Aiming at the problem that the single-channel data receiving card can’t complete multi-channel data receiving at the same time,this paper designs a 3-channel data receiving card of which the main hardware logic is composed of FPGA,dual-port RAM and PCI9054 bridge chip based on the design concept of single-channel data receiving card.Firstly this paper introduces the working principle of the card,and then explains the FPGA design process in detail,finally,puts forward an transmission method combined the DMA with the burst data at the time of data transfer between PCI local bus and PCI bus based on the hardware configuration of the card.This method can solve the problem that the computer is difficult to receive multi-way synchronization data with a few PCI slots,ensure the real-time and integrity of data transmission,and effectively improve the utilization of the PCI bus in high-speed data transmission.

关 键 词：关键词 同步数据 PCI总线 DMA 突发数据 

分 类 号：TN914[电子电信—通信与信息系统]