(硕士论文)基于TMS320DM642的视频处理系统的硬件及驱动设计.pdf

申请上海交通大学硕士学位论文
基于 TMS320DM642 的视频处理系统的硬件及驱动设计

摘要

随着电子技术、多媒体技术、信号处理技术的不断发展,机载航电
设备正在向体积小型化、功能多样化方向发展;由于机载设备众多且互
相存在复杂的交联,如何设计及实现各种功能强大、性能可靠、体积小
巧、抗干扰能力强的系统正成为工程师们所研究的重要课题。
数字视频记录仪(DVR)作为飞机显示控制系统(DCMS)的一个
重要设备,负责接收、处理、记录飞机上的各种飞行和控制画面,这些
记录的画面信息能够为地面工作人员对飞行进行分析和评估提供重要依
据。
本论文通过系统需求分析,设计并开发了一种基于 TI 公司 DSP 芯片
的视频处理系统,该系统将 LVDS 技术、视频监控技术、数字视频技术
相结合,用于机载 DVR,完成对机载视频、音频数据的采集和处理。文
章选用 TMS320DM642 为核心完成视频处理系统的设计开发,详细介绍
了系统的各个功能模块的划分,着重介绍了 TMS320DM642 各接口的硬
件设计,给出了各模块具体的硬件电路及元器件特性,同时介绍了一些
在 PCB 设计中应该注意的一些问题和解决方法。
论文还介绍了该系统的软件集成开发环境以及相应底层驱动程序的
设计,并给出了视频采集模块、外扩存储器模块的测试软件源码。

关键词: 数字视频记录仪,LVDS,





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申请上海交通大学硕士学位论文
A HARDWARE AND DRIVER DESIGN
OF VIDEO PROCESSING SYSTEM BASED ON
PROCESSOR TMS320DM642

ABSTRACT

With the development of the electronic technology, multimedia and
signal processing technology, airplane devices are ing smaller and the
function is ing multiplex. At the same time, because of the contact of
many different devices, it is hard to design avionics systems which have high
performance, small volume and good anti-jamming.
Digital Video Recorder (DVR) is one of the devices in the Display
Control Manager System (DCMS). Receiving, processing and recording
various image of plane are the main function of DVR. This recorded image
can help to analyze and evaluate the flight.
Based on the requirement of the system, this paper has developed a video
processing system using DSP of Texas Instruments (TI). LVDS technology,
monitoring technology and digital video technology have been used in the
system. It can be used in DVR, completing the video and audio data
collection and processing. Studying paring some mature solutions ,
we choose the TMS320DM642 as the core of the video processing system
design. The paper also gives a detailed presentation of how plete the
demarcation of the various functional modules. The hardware design of the
TMS320DM642’s interfaces have