【作者】 王悦； 勾学荣；

【Author】 Wang Yue Gou Xuerong (Beijing University of Posts and Telecommunications,Beijing 100876,China)

【机构】 北京邮电大学；

【摘要】 本文着眼于下一代网络(NGN)及其关键技术,分别从硬件、软件、交叉编辑及系统调试等方面对嵌入式 VoIP 多通道语音网关的设计原理与系统实现进行讨论和介绍。硬件部分主要围绕适合以太网应用的通用 ARM7微处理器进行系统设计与开发,软件设计部分由自主开发的应用程序和嵌入式实时操作系统内核组成,同时本文还对嵌入式交叉编译和系统软硬件调试及开发流程进行了全面系统的描述和分析。文章结尾部分,对添加 WLAN 无线接入模块以实现 VoWLAN 等后续开发设计作了简要的展望。更多还原

【Abstract】 With an eye to Next Generation Network (NGN),the design and implementation of the embedded VoIP multi-channel voice gateway system consist of hardware design,software development,cross-compile,and system test.The hardware design is mainly based on embedded ARM7 processor which is suitable for Ethernet applications. In the part of software development,the embedded real-time OS image is made up of the RTOS Core and applications which are developed by us.The rest of this article discusses and introduces the method of cross-compile and system test in detail.At the end of this article,there is a brief prospect about the follow-up development of the WLAN supplement module which is designed for VoWLAN applications.更多还原