参数可配置全彩LED显示控制系统

李强; 刘振泽; 曹慧; 李义

doi:doi:10.3788/lop55.101101

激光与光电子学进展, 2018, 55 (10): 101101, 网络出版: 2018-10-14

参数可配置全彩LED显示控制系统下载： 633次

Parameter Configurable LED Display Control System

论文大纲

李强 ¹刘振泽 ^1,*曹慧 ²李义 ³

作者单位

¹ 吉林大学通信工程学院, 吉林长春 130031

² 长春希达电子技术有限公司, 吉林长春 130031

³ 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033

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摘要

为了灵活配置LED显示大屏幕的关键参数以满足不同的显示需求, 设计一种全新的现场可编程门阵列(FPGA)系统框架, 基于二级缓存时分编码寻址原理, 以最少的硬件资源实现2048 pixel×32 pixel LED像素点的点对点动态寻址, 实现灵活动态设定LED走线方式。以250 MHz高频时钟作为基准时钟, 采用灰度控制优先原则, 在保证显示效果的前提下, 完成LED控制信号生成。经过实验验证, 采用本文设计的FPGA系统架构LED接收卡, 能够成功驱动不同分辨率、不同扫描方式、不同LED走线方式的LED大屏幕, 增强了LED显示控制系统的兼容性与灵活性。

Abstract

In order to configure the LED display control system dynamically and flexibly to satisfy different displaying requirements, we propose a new field-programmable gate array (FPGA) system structure, which achieves the 2048 pixel×32 pixel point to point addressing with minimal hardware resources based on the principle of two level caching and addressing code. Following the principle of gray controlling with high priority, we generate the control signal under the precondition of ensuring the display performance by taking 250 MHz high frequency as basic clock, associating with the synchronize control module. Experimental results verify that the display control system with the proposed FPGA frame could drive different resolutions, different scanning modes and different LED panels successfully. It improves the compatibility and flexibility of LED display control system.

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李强, 刘振泽, 曹慧, 李义. 参数可配置全彩LED显示控制系统[J]. 激光与光电子学进展, 2018, 55(10): 101101. Li Qiang, Liu Zhenze, Cao Hui, Li Yi. Parameter Configurable LED Display Control System[J]. Laser & Optoelectronics Progress, 2018, 55(10): 101101.

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