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机构地区:[1]湖南大学计算机与通信学院,湖南长沙410082 [2]长沙行成信息科技有限公司,湖南长沙410005
出 处:《计算机技术与发展》2011年第5期214-218,222,共6页Computer Technology and Development
基 金:湖南省科技计划重点项目(2010GK2002)
摘 要:随着国家3G牌照的发放,支持3G移动通讯的设备开发已经成为通讯产业和嵌入式系统发展的热点。嵌入式Linux因其源代码开放、可定制等特点而在嵌入式系统开发中得到广泛应用,而基于3G通讯模块的设备驱动是开发3G终端设备和服务的基础。文中讨论了嵌入式Linux环境下的设备文件管理、USB系统结构,详细分析了USB驱动骨架,并结合arm系列S3C2440处理器和支持TD-SCDMA的通讯模块LC6311,实现嵌入式Linux系统下的3G通讯模块设备驱动开发,并给出了测试验证实例。Research and development of electronic device which supporting the 3rd-generation communication technology, has become the focus of the communication industry and embedded systems, since 3G licenses were released. As an operating system which is open source code and could be customized, Linux has widely used in embedded system. The device driver for the 3G modules, which was applied under Linux environment, was the most important for developing 3G terminal facilities and services. Discussed the management of device file and the USB system structure under embedded Linux environment. Subsequently, it analyzed the USB driver skeleton in great detail. At last, it gave the implementation of developing device drivers for 3G modules based on the S3C2440 processor and LC6311 module. At the end of this paper, some samples were used to show how to test the performance of the system.
分 类 号:TP302[自动化与计算机技术—计算机系统结构]
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