基于FPGA的G.SHDSL接口设计与实现

Research and Application of G.SHDSL Interface System Based on FPGA

摘要:

为提高G.SHDSL接口灵活性，降低接口实现和维护成本，通过分析研究ITU-T G.991.2 G.SHDSL推荐标准，结合FPGA强大的数字处理能力和可重配置能力，搭建了以FPGA和AFE1230模拟前端芯片为核心的硬件平台，并通过Xilinx ISE14.6开发套件在FPGA上进行软件编程，设计实现了基于FPGA的G.SHDSL接口。仿真实验结果表明，该接口功能实现正常，工作稳定，并允许用户通过修改程序代码和系统输入来实现对接口的动态配置和维护更新，有效地解决了传统G.SHDSL接口灵活性差和维护成本高的问题，并为其它信号接口系统的设计实现提供了有益的参考。

Abstract:

FPGA could improve the flexibility and versatility of G.SHDSL interface and reduce the cost of implementation and maintenance. In this paper, the ITU-T Recommendation G. 991.2 is analyzed, the hardware platform with Xilinx Spartan-3 FPGA is built and the methods of implementing modules of G.SHDSL are researched on. Finally, the G.SHDSL interface based on FPGA was designed with Xilinx ISE 14.6 and AFE1230 analog front-end. The interface allows users to implement the dynamic configuration and updates by modifying the program code and system input, which solves the problem of traditional G.SHDSL interface. Proved by the simulation result, the interface can work stably and reliably and will provide a reference to the design of other signal interface.