一种基于嵌入式技术的高性能G.SHDSL路由器的设计

Design of a High Performance G.SHDSL Router Based on Embedded Technology

本文介绍了基于嵌入式技术[1]的一种G.SHDSL[2]设备的硬件设计方案,着重说明了设备核心部件的选择及其工作过程,以太网接口模块及控制方式,G.SHDSL成帧器及其模拟前端、RS232调试口、电源模块以及告警指示灯等的设计思路等。结合系统软件工作流程,从引导加载程序、Linux内核、文件系统、用户应用程序等四个层次设计系统的软件设计方案。

This paper introduces a hardware design of G. SHDSL equipment based on embedded technology, focuses on the selection and the working process of the core parts of equipment, the Ethernet interface module and control mode, G. SHDSL framer and analog front end, RS232 debug port, power supply module and alarm indication lamp design etc.. Combining with the system software, the software design scheme of four levels of bootloader, Linux kernel, file system, the user application program design system.