【作者】 先明春； 刘贺平； 罗海勇； 朱珍民； 高玉之； 白艳茹；

【Author】 Mingchun Xian 1, Heping Liu1, Haiyong Luo 2, Zhenmin Zhu 2,Yuzhi Gao 2,Yanru Bai 1 (1 School of Information Engineering, University of Science and Technology Beijing,Beijing,100083) (2 Institute of Computing Technology, Chinese Academy of Sciences,Beijing,100080)

【机构】 北京科技大学信息工程学院； 中国科学院计算技术研究所；

【摘要】 以TI最新推出的达芬奇处理器TMS320DM6446为核心,结合AIC32/TVP5146高性能音频编解码/视频解码芯片,运行Monta Vista Linux操作系统,设计出了高性能视频通信终端。终端中加入了MSP430子系统和GPS子系统,很好的解决了达芬奇处理器I/O资源有限、对外围低速模块实时控制复杂等问题;较大简化了系统硬件、驱动软件设计,加快了系统研发周期,并取得了良好效果。本文在简略介绍TMS320DM6446视频通讯系统结构的基础上,重点介绍了本视频通讯系统中MSP430子系统和GPS子系统的硬件及软件设计。更多还原

【Abstract】 Using TMS320DM6446 which is latest lunched by TI as the core CPU, combining with AIC32/TVP5146 high performance audio CODEC/video decoder chips; running MontaVista Linux Operating System. We design high-performance video communication terminal. The MSP430 subsystem and GPS subsystem are added in this Terminal, It perfectly solved the problems that the DaVince processor lack resources of GPIO and complex to control the external low-speed modules. Greatly simplified the hardware and driver software design of the system, accelerated the development cycle and have achieved good results. This paper on the basis of briefly introduced the system structure of the video communication system based on the TMS320DM6446 and emphatically introduced the hardware and software design of the MSP430 subsystem and the GPS subsystem.更多还原