基于DSP+FPGA数据传输系统的实现

Implementation of data transfer system based on DSP and FPGA

基于航天电子系统逐渐光纤化、高速化的发展趋势,设计了一种光纤通信的高速数据传输系统,通过耦合Xilinx公司最新一代的Virtex-5系列FPGA,顺利实现了超高速的DSP数据采集与处理。采用多种方法解决了在数据传输系统中FPGA与DSP信号不匹配的问题,进行了一系列的仿真实验。测试表明,该系统能够顺利的实现Gbps的数据传输,在数据传输开始时产生帧开始标志sof_n,在传输结束时产生帧结束标志eof_n。同时,该系统有低成本、高通用性和低失真度等优势,可成功用于光通信等领域中。

With the trend of gradually optical fiber and high speed for Aerospace and Electronic Systems,in this paper,we develop a high data rate transmission system for optical fiber communication.A high-speed DSP data acquisition and processing system comes true when coupling the latest generation of Xilinx＇s Virtex-5 FPGA.There are a variety of methods to solve the problem of data mismatch of FPGA and DSP.We design a series of simulation experiments,which suggest the ability to achieve Gbps data transmission and the generation of a frame sof_n and eof_n to sign the start and end of data transmitting,respectively.The system can be successfully used in areas such as optical communication with its low-cost,high versatility,low distortion and other advantages.