摘 要................................................................II
ABSTRACT ............................................................III
1 绪论................................................................1
1.1 FPGA 的概述 ...................................................1
1.1.1 FPGA 的发展 .............................................1
1.1.2 FPGA 的应用 .............................................2
1.2 FPGA 的设计流程 ...............................................3
1.3 FPGA 的设计优势 ...............................................4
1.4 面向 FPGA 的 EDA 开发流程 .......................................5
2 LED.................................................................7
2.1 LED 显示屏的发展 ..............................................7
2.1.1 LED 显示屏的国内发展现状 ................................8
2.1.2LED 显示屏的发展趋势 .....................................9
2.2 LED 显示屏的结构及其示意图 ...................................10
2.3 LED 显示屏的种类及特性 .......................................10
3 LED 电路显示原理 ...................................................12
3.1 LED 点阵显示结构 .............................................12
3.2 LED 点阵显示模块的显示原理 ...................................13
3.3 LED 点阵屏的显示原理 .........................................14
3.4 显示系统扫描程序软件设计.....................................15
4 方案选择 ...........................................................16
4.1 总体方案 .....................................................16
4.2 外围电路连接.................................................18
4.3 模块设计 .....................................................20
4.3.1 双口 RAM 存储单元配置 ...................................20
4.3.2 FPGA 的驱动电路设计 ....................................24
4.3.3 FPGA 的分频器设计 ......................................25
4.4 刷新频率的计算 ...............................................25
4.5 项目仿真 .....................................................26
致 谢................................................................28
参 考 文 献 ..........................................................29
附录Ⅰ...............................................................30
附录Ⅱ...............................................................36
附录Ⅲ...............................................................39
附录Ⅳ...............................................................41
