基于FPGA的100BASE-TX工业以太网中继器的设计与实现  

Design and implement of 100BASE-TX industrial Ethernet repeater based on FPGA

作　　者：周学勋 

机构地区：[1]南车时代电气技术中心,湖南株洲412001

出　　处：《电子设计工程》2011年第16期167-169,173,共4页Electronic Design Engineering

摘　　要：为了提高工业以太网的实时性和确定性,设计出一种基于FPGA的以太网中继器。与传统的以太网中继器相比,该中继器采用FPGA芯片实现数据的处理,具有延时小的特点。该中继器以太网接口部分采用专业的以太网PHY芯片,数据的转发则由FPGA来完成,FPGA程序包括同步检测模块、同步再生模块、双口RAM及中央控制模块等几个模块。实验结果表明,该以太网中继器能兼容IEEE802.3标准以太网设备,与传统的以太网中继器相比,延时要小很多。In order to improve the performance in real-time and certainty of Industrial Ethernet network,an Ethernet repeater based on FPGA is designed.Compared with traditional Ethernet repeater,the repeater uses FPGA chip for data processing,with low-latency features.The Ethernet interface of the repeater uses a professional Ethernet PHY chip,and uses FPGA for data processing,the FPGA procedures including simultaneous detection module,synchronization regeneration module,dual-port RAM and the central control unit.Experimental results show that the Ethernet repeater is compatible with standard Ethernet devices based on IEE802.3.Compared with traditional Ethernet repeater,the latency is much lower.

关 键 词：工业以太网 中继 FPGA 延时 PHY MII 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]