文档介绍：上海交通大学工程硕士学位论文便携式 DVB_T 数字电视接收一体机软件系统设计摘要随着广播电视数字化的发展,数字电视已经进入普通家庭。电视观众在家里可以收看到成百上千的电视频道,享受到高清晰度画质和音质的电视节目,以及形形色色的图文交互等信息。在数字电视的大家庭中, 地面广播数字电视因为其无线接收、无须重新布网以及支持移动接收的特性,尤其是作为现行模拟地面广播的取代者,其传输方式及接收技术在现阶段尤为受到重视。便携式 DVB_T 数字电视接收一体机作为数字电视广播的用户接收终端,方便人们随时随地接收 DVB_T 标准的数字电视,具有较好的市场前景。本文就是基于美国 CONEXANT 公司的系统控制芯片 Cx24156 ,设计开发出一款便携式 DVB — T 数字电视接收一体机。一体机的主芯片 Cx24156 采用的是 ARM920T 内核,操作系统为嵌入式操作系统 Nucleus PLUS 。文章首先简要介绍了数字电视现状和发展趋势,然后简述了接收机的软硬件设计方案,其中对引导程序和应用软件的设计实现进行了细致的分析。之后就是对作者的主要工作部分着重进行了论述—— 1 、将 3000M 前端解码 pc 版本程序移植到现在的 Conexant 嵌入式系上海交通大学工程硕士学位论文统平台; 2 、根据用户使用****惯,来改进产品的 OSD 应用程序。除此之外,论文中还对软件开发环境、编程调试步骤进行了系统的阐述。文中论述的数字电视接收一体机的设计和实现方法都是经过实践证实了的可行的方法,一体机已成功开发完毕,可应用于实际产品的生产。在这个项目中作者除了上述软件工作还负责了原理图、 pcb 修改重绘工作。关键词: DVB_T , 便携式, Cx24156 芯片, ARM920T 内核, Nucleus PLUS 上海交通大学工程硕士学位论文 THE DESIGN OF THE SOFTWARE FOR DVB_T PORTABLE DIGTAL TV RECEIVER ABSTRACT With the rapid developing of the digital broadcasting te chnology, digital TV began to appear in the ordinary family. Consumer can enjoy thousands of progr ams along with all kinds of teletext information in their own hom e now, and the sound and image quality of the programs are all DVD quality. In the big family of the digital TV fiel d, has achieved more and more recognition on both transfer mode and rece iving technology, because of its wireless and mobile receiving future, especial of its subs titute for current analog TV broadcasting. The DVB_T portable digital TV receiver is used as the user-end equipment in the digital television broadcasting, which can provide DVB_T digital television program everywhere. The market of the DVB_T portable digital TV receiver will be lively. The DVB_T portable digital TV receiver is designed and developed based on the Cx24156 system control chip of Conexant Systems, Inc., with ARM920T kernel used for the Cx24156 main chip and Nucleus PLUS embedded OS chosen as the operating system. The thesis firstly intr oduces the present situat ion and the future of the development of the digi