摘要:在数字控制系统设计中,应用EDA技术,采用高度集成的现场可编程门阵列 (FPGA),用编写软件的方法来实现硬件功能,系统具有电路简单、应用方便等优点。本毕业论文结合实例介绍了EDA技术在LED显示屏控制中的应用;论述了LED显示屏逐点检测 系统的工作原理,介绍了一种基于FPGA的LED显示屏逐点检测系统的实现方案;分析了FPGA 内部各功能模块和其他电路模块的作用及工作过程。FPGA设计实现的控制电 路,能够实现LED所要求的灰度级显示。20417
关键词:EDA;FPGA;LED 显示屏;VHDL;灰度级
Design of the LED controller based on FPGA
Abstract: In the design of control system in the arithmetic figure, the application of EDA technique, the adoption of high degree to gather the spot array (FPGA ) of programmable door, and the software's writing method in realizing the hardware function can make the system simple in the electric circuit. This paper introduced the EDA technique in the application of the LED display control with examples. Discussed the working principle of LED display point by point detection system, introduced an implement case of LED display point by point detection system based on FPGA; Analyzed the internal FPGA functional modulesand other circuit blocks and the role of the working process. The emulational results indicate that the realization of the gray—scale on LED panel can be obtained by FPGA device easily.
Key words: EDA; FPGA; LED display; VHDL; Gray—scale
目录