基于单片机的简易拍照系统设计
毕业论文关键词 图像采集与显示 OV7670 STM32 TFT屏
Title: Simple image acquisition based on MCU
Abstract With the progress of image collection and processing technology and the development of the society, it is widely used in social communication, remote medical and many aspects, such as real-time monitoring.Image acquisition system based on MCU has the advantages of small volume, price cheap, has wide application market.This paper studies a simple microcontroller STM32 - based camera system , the collected image TFT LCD display . Specific work as follows: The first is a system of hardware module . The hardware system consists of a power supply module , processing module , image acquisition module , display module, memory module , serial communication module with key module seven modules , and details the function of each module and circuit diagrams . Secondly has carried on the detailed introduction to the software part, image acquisition software system consists of image acquisition module, display module, memory module, serial communication module four module. Introduces the system flow chart and part of the software design. Finally , the results show , and a summary of the paper .
Keywords Image acquisition and display OV7670 STM32 TFT LCD
1. 绪论 1
1.1 研究目的和意义 1
1.2 发展状况 2
1.3 论文安排 2
2. 系统方案设计 3
2.1 系统设计框图 3
2.2 摄像头工作原理 3
2.3 摄像头 OV7670 概述 4
2.3.1 摄像头 OV7670 简介 4
2.3.2 功能框7
2.4 STM32 的概述9
2.4.1 STM32 简介9
2.4.2 STM32 微控制器优点11
3. 硬件设计13
3.1 电源模块 13
3.2 处理器模块 14
3.2.1 STM32 最小系统电路 14
3.2.2 测试调试接口电路 15
3.3 图像采集模块 16
3.3.1 采集图像基本方法 16
3.4 显示模块 17
3.4.1 LCD 选型 17
3.4.2 显示电路 18
3.5 存储模块 18
3.5.1 SD 卡简介18
3.5.1.1 SD 卡外部物理接口19
3.5.1.2 SPI 模式访问模式 20
3.6 UART 与按键电路设计 20
3.6.1 UART 电路 20
3.6.2 按键电路 21
4.软件设计 22
4.1 RealView MDK软件介绍 22
4.1.1 μVision3 IDE22
4.1.1.1 μVision3 IDE主要特性 24
4.2 软件系统整体设计 24
4.2.1 软件系统模块化分析 24
4.2.2 图像采集模块程序 25
4.2.2.1 打开摄像头，硬件复位 27
4.2.2.2 关闭摄像头 27
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