摘要随着信息和网络技术的高速发展，嵌入式产品逐渐融入到日常生活、科学研究和军事技术等领域，例如手机、汽车、雷达、工业仪器等。

本课题以某雷达信号模拟器的显控终端设计为应用背景，设计出基于AT91SAM9G20处理器的显控终端系统。该嵌入式系统通过对键盘、LCD、FPGA、外部接口的控制，以实现信号产生和处理、工作模式管理、数据传输和存储等功能。首先，根据项目需求，给出显控系统的总体设计方案；其次，完成系统硬件原理图设计和PCB设计，并给出了系统软件实现方案；最后，进行了系统调试和功能验证，结果表明本显控系统达到设计功能要求。78385

毕业论文关键词 AT91SAM9G20嵌入式系统显示控制

Title The design of display and control terminal based on AT91SAM9G20

Abstract With the rapid development of information technology and network technology, embedded products have become more and more widely used in daily life, scientific research, military technology and other fields。 From household washing machines, refrigerators, to transport vehicles (such as cars), as well as the office of the remote conference system, have used the embedded products。

The paper is to design an embedded system based on AT91SAM9G20 processor independently, with the application background of a radar signal simulator control and display terminal design。 The system realizes the function of signal production and processing, working status monitoring, data transmission and storage , through the control of the keyboard, LCD, FPGA, external interface。 Firstly, The overall design scheme of the display control system is given, according to the application requirements。 Secondly,complete system hardware schematic design and PCB design，at the same time， the implementation scheme of the system software is given。Finally, System debugging and functional verification are carried out，and the results show that the control system can meet the design requirements。

Keywords AT91SAM9G20 embedded system display control

目 次

1 绪论 1

1。1 课题的背景及意义 1

1。2 嵌入式系统概述 1

1。3 本课题研究内容和章节安排 3

2 嵌入式系统总体设计 5

2。1 嵌入式系统的开发流程 5

2。2 系统需求分析 6

2。3 主体结构设计 7

2。4 系统软硬件选型 7

3 系统硬件电路设计 10

3。1 整体电路设计 10

3。2 系统硬件电路的各个模块设计 11

3。3