毕业设计（论文）-基于DSP图像采集系统设计.doc

基于DSP图像采集系统设计
摘要
本设计的功能是实现实时图像采集,以数字处理芯片TMSC5410A为核心器件,以CMOS图像传感器OV7660来进行图像采集。本设计首先描述了系统的整体设计思路,然后分别对系统的硬件部分设计和软件部分设计进行了详细地说明。硬件设计包括电源模块、图像读入模块、DSP核心电路模块及DSP与PC机串行通信电路模块。在电源模块中,,;在图像读入模块中,B对OV7660完成有关设置,来实现模拟图像信号到数字图像信号的转变;在DSP核心板电路模块中,通过对时钟电路设计、复位电路设计、JTAG接口电路及其它电路的设计完成对DSP最小系统的设计和TMSC5410A存储器的扩展;在DSP与PC机串行通信电路模块中,通过UART提供的接口编程,来实现TMSC5410A与PC机的高速串行通信。软件设计包括系统的初始化、OV7660初始化和中断服务程序,这几部分分别可实现系统初始化,主要针对TMSC5410A的初始化,使DSP能够正常工作; OV7660初始化,启动图像采集功能;中断服务程序设计,实现数据的传送和接收。最终,系统完成了图像采集系统的硬件设计。
关键字:图像采集;OV7660;TMSC5410A
Hardware Design of Image Capture System based on DSP
Abstract
The function of this design is to realize real-time image acquisition to digital processing chip for the core device, TMSC5410A OV7660 by CMOS image sensor to image acquisition. This design first described the system's overall design train of thought, then respectively to the system hardware design and software of design in detail. Hardware design including the power modules, image into modules, DSP core circuit module and DSP and PC munication circuit the power modules, the need to provide V, 5V and V power supply systems, power supply; In the image into modules, through to SCCB plete relevant Settings, to simulate the image signal to the digital image signal change; In DSP core board circuit module, through to the clock circuit design, reset circuit design, JTAG interface circuit and other circuit pleted the design of DSP smallest system TMSC5410A memory expansion; and In DSP and PC munication circuit module, through the interface programming, provide UART TMSC5410A with a PC to realize the high-speed munication. The software design including the system initialization, OV7660 initialization and interrupt service routine, which a few parts can realize system respectively TMSC5410A initialization, mainly in the initialization, make DSP can work normally; OV7660 initialization, start image acquisition function; The interrupt service routine design, rea