摘要
在简单介绍第三代移动通信技术的基础上,讨论了基于ARM9微处理器AT91RM9200和嵌入式Linux操作系统的EVDO 3G路由器设计。介绍了AT91RM9200微处理器的特点,路由器的硬件设计以及选择Linux作为嵌入式操作系统的合理性,较为详细地介绍了Linux下iptables工具的使用和DHCP服务器的配置。基于该方案设计实现的路由器可以实现局域网到Internet的无线接入,非常适合于高速无线数据传输领域,性价比高,应用前景广阔,具有很好的产品化价值。
The 3rd- generation communication technology is presented simply in this paper, and then the design of EVDO 3G router is discussed based on ARM9 microprocessor ATglRM9200 and embedded operating system Linux. The characteristics of ATgl RM9200 microprocessor and the hardware design of the 3G router are given,and it points out that Linux is very suit to be used as embedded operat- ing system. Last, the usage of iptables and DHCP under Linux is discussed in detail. The router designed in this paper provides a kind of solution for the local area network to connect to Internet wirelessly, and it is powerful in application of high speed wireless data transmission. It is low cost and high performance, and its commercialization is profitable.
出处
《微处理机》
2012年第3期54-57,共4页
Microprocessors
