基于FPGA的千兆以太网数据传输

Gigabit Ethernet data transmission based on FPGA

针对图像传输设备实时数据量大、传输质量差、稳定性低等问题,采用GTX高速串行收发与千兆以太网相结合方法,设计了一种基于FPGA的千兆以太网高速传输系统,通过对以太网组成结构和工作原理的理解,采用FPGA内部GTX资源实现物理层,以FPGA为逻辑控制核心对UDP数据进行编帧处理实现传输层、网络层、数据链路层,最终UDP完成与上位机的通信。测试结果表明,光纤无失真传输;数据包收发过程中无丢包现象,实现动态ARP查找表。

Aiming at the problems of large amount of real-time data,poor transmission quality and low stability of image transmission equipment,a high-speed transmission system of gigabit Ethernet based on FPGA is designed by combining GTX high-speed serial transceiver and gigabit Ethernet.Through the understanding of the structure and working principle of Ethernet,the physical layer is realized by using GTX resources in FPGA,and the transmission layer,network layer and data link layer are realized by framing UDP data with FPGA as the logic control core,and finally the communication between UDP and the host computer is completed.The test results show that there is no distortion transmission of optical fiber;there is no packet loss in the process of packet transmission;dynamic ARP lookup table is realized.