基于FPGA的高速数据传输系统设计与实现

Design and Implementation of High-speed Data Transmission Based on FPGA

摘要:

为了满足国家重点专项“量子科学实验卫星”中“量子存储板”高速串行数据传输的测试要求,提出了一种以Nios II嵌入式处理器为控制核心,TLK2711、RS422、USB2.0和千兆以太网为传输接口的高速数据传输解决方案；系统采用TLK2711完成高速数据的串并转换,采用RS422完成命令和控制信号的传输,实现与“量子存储板”的高速数据传输；利用Xilinx公司Zynq-7000芯片独有的ARM+FPGA架构实现千兆以太网完成数据的高速传输,利用EXAR公司XR21V1414 USB转串口芯片实现命令、遥测等数据的传输；采用Labview编写上位机控制整个系统的运行,实现命令发送、指令解析、运行状态显示、数据帧产生、高速数据传输、解析和存储等功能；实测结果表明,此系统数据传输速率高达600 Mbps,满足高速串行数据传输的要求,且具有稳定性高、可靠性好等优点。

Abstract:

To satisfy the test requirements of Quantum Memory Board high-speed serial data transmission in national key project Quantum Science Experiment Satellite, this paper proposes a new solution to high-speed serial data transmission. Taking the high-speed requirement into consideration, the system takes a Nios II embedded processor as the control core. In addition, TLK2711, RS422, USB2.0 and Gigabit Ethernet are worked as the transmission interfaces. To be specific, TLK2711 and RS422 are separately used to complete the high-speed data conversion from serial to parallel and transmission between the system and Quantum Memory Board. Gigabit Ethernet which is constructed by the unique ARM+FPGA architecture contained in the Zynq-7000 chip of Xilinx, is taken to complete high-speed data transmission work. XR21V1414 chip of EXAR, which can convert USB to UART, is designed to realize the transmission of commands and telemetry data. An control system which integrates the following functions commands transmission, instruction analysis, test progress display, data frame producing, high-speed data transmission, analysis and storage is developed in Labview. The measured results show that the system has the advantages of high stability and reliability, besides the data transmission rate is up to 600 Mbps.