1、 xx大学学士学位论文 - I - 基于基于 FPFAFPFA 的的 VGAVGA 显示控制器显示控制器设计设计 摘要摘要 目前,数码产品逐渐进入了人们生活的每一个领域,而此类产品大多都带 有显示屏,可见对显示屏的控制电路进行研究具有很大的市场需求。VGA 作为 一种标准的显示接口得到了广泛的应用,同时基于 VGA 技术的显示控制器也拥 有广泛的使用领域。 本文所设计的 VGA 控制器就是通过利用超大规模可编程逻辑器件 FPGA 和 Altera 公司开发的 EDA 设计软件 Quartus II 8.0,并采用自顶向下的 VHDL 设计 方法,将该控制器分成用 VHDL 语言进行描述的五个子
2、模块来实现的。在 Quartus II 8.0 软件平台上,完成了对该控制器的设计输入、综合、仿真和下 载。在实验开发板上,也进行了硬件调试。调试结果表明,设计的 VGA 控制器 能够正确地输出 RGB 颜色信号和时序控制信号,可以显示符合 VGA 工业标准 的测试彩条信号,内置 ROM 信息,实时 RAM 信息,还能够分屏显示三路 RGB 图像信息,并在这几种模式之间灵活切换和通断。它工作稳定,达到了设计要 求。 本设计利用了不同于以往传统的电子设计方法,具有修改灵活,高移植 性,维护简单,可靠性好等优点。大大地缩短了设计周期,降低了生产成本。 关键词关键词 现场可编程门阵列;硬件描述语言;
3、视频图像阵列 xx大学学士学位论文 - II - The VGA Display Controller Design Based on FPFA Abstract The currently, the digital products which most of them have a display screen entered in every area of peoples lives gradually, so we can see the great market demand of the study on the control circuit .As a standard di
4、splay interface has been widely used, the VGA display controller based on this VGA norm also has a broad field of use at the same time. In this paper, designed through the use of ultra-large-scale programmable logic device-FPGA and Altera developed EDA design software Quartus II of version 8.0, and
5、the VHDL top-down design methodology,the VGA controller was divided into five sub-modules which described with VHDL language. It has finished the design of the controller input, integrated, simulation, and download on Quartus II 8.0 software platform,and it has carried out hardware debugging on the
6、experimental development board. The results from debugging showed that the design of the VGA controller can output the color signals of RGB and the control signals correctly. It can show the images that compliance with industry standard of VGA ,such as the color bar test signal, a built-ROM image, and a real-time RAM image, but also to show the three- way RGB image information on one screen separately,and it can make a choice between these types of models and control the output connect or dis