Multi-channel Digital Hard Disk Recorder (dvr) Hardware Design

This paper gives an introduction of the development of DVR, proposes a DVR design based on embedded processor and DSP and discusses the hardware design of the system in detail. After the analysis of the features of IDT RC32438 embedded processor and ADI Blackfin 561 DSP, this paper establishes the overall design framework of the system and expounds the contents of system schematic design, PCB simulation design and system debug.Chapter 1 gives the background of DVR, and a short introduction of embedded system, DSP and EDA tools. Then the task of the project is proposed.Chapter 2 discusses the hardware overall design of embedded DVR.Chapter 3 discusses the design of the DVR system in detail, including analog signal processing, chips choosing and circuit design, etc.Chapter 4 gives the detail of PCB design with signal simulation tools and the procedure of system debug.Chapter 5 summarizes the design of the system, and describes the perspective of the development of embedded DVR.