基于FPGA的PS2与VG控制显示设计.doc

基于FPGA的PS/2与VGA控制显示设计 摘 要 伴随着嵌入式系统的迅速发展，VGA(视频图形阵列)作为一种标准的显示接口得到广泛的应用，PS/2接口也广泛的应用于鼠标和键盘。文中在依据VGA显示的原理和PS／2鼠标通信协议的基础上，在讨论EDA软件工具平台下的FPGA设计流程的前提下，基于模块化、层次化的设计思想，利用VHDL作为逻辑描述的手段，在Altera公司的QuarmsII软件环境下完成VGA模块和PS/2接口模块的设计。本设计在利用VGA模块和PS/2接口模块的基础上，实现了鼠标控制VGA显示，完成了一个小游戏的设计，并给出了顶层逻辑框图和各个模块的设计思路。通过软件和FPGA 的结合,可以将VGA接口要显示的数据直接送到显示器，保证了PS/ 2 接口收发数据的精确性和可移植性, 加快了数据的处理速度，节约了硬件成本。 关键字 FPGA/VHDL/VGA /PS/2 Design of PS/2 and VGA Display Control Based on FPGA ABSTRACT As the fast development of embeded system， As a standard display interface，VGA has been widely used, PS / 2 module is also widely used in the mouse and keyboard.In this article，according to the principle of VGA display and the analysis of the communication protocol of mouse，completed the design of VGA module based on QuartuslI softerware environment and the design idea about modularization、hiberarchy while using VHDL as a means of logic description as well as discussed the process of the design of FPGA based on EDA softerware platform．Also gave the ideas of VGA module and PS/2 module design and the top logic diagram of this modular．This design is based on VGA module and PS / 2 interface modules. It fulfills the mouse-control VGA display, and completes the design of a simple game. It also gives a top-level logic block diagram and the design of each module. Through the combination of certain software and FPGA, it is possible to send data which will be displayed by VGA interface directly to the monitor. It ensures the accuracy and the possibility of transplant when adopting the PS / 2 transceiver interface. Meanwhile, it speeds up the data processing rate and cut down hardware costs. KEY WORDS FPGA,VHDL,VGA ,PS/2 目 录 中文摘要 I 英文摘要 II 目 录 III 第一章 绪论 1 1.1 研究的背景 1 1.2 研究目的和意义 2 1.3 研究的内容 2 第二章 相关的原理 3 2.1 VGA的显示原理 3 2.1.1 显示标准分类 3 2.1.2显示原理 3 2.2 PS/2接口的通信协议 4 2.2.1 PS/2硬件接口 4 2.2.2 PS/2通信协议 5 第三章 系统的设计与实现 10 3.1 系统的整体连接与实现 10 3.2 VGA显示控制模块的设计 11 3.3 PS/2鼠标接口的设计 12 3.4 游戏图像生成模块 14 3.4.1 frame模块 14 3.4.2 board模块 14 3.4