| 基于嵌入式系统的LED显示屏设计与实现 |
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| 引用本文： | 夏萌,刘文波.基于嵌入式系统的LED显示屏设计与实现[J].佳木斯工学院学报,2009(2):198-200. |
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| 作者姓名： | 夏萌 刘文波 |
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| 作者单位： | 南京航空航天大学自动化学院,南京210016 |
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| 摘 要： | 目前大多数LED显示系统只支持单屏幕显示，并且显示区域较小．针对上述问题，该系统提出以ARM7芯片LPC2148为控制核心，在可编程逻辑器件EPM240的辅助下，通过RS485完成与PC平台进行工业现场网络通讯．实验表明：该系统显示区域大，刷新频率达到60Hz以上，能动态地显示不同的多媒体信息．
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| 关 键 词： | ARM处理器 CPLD LED显示屏 RS485 |
Design and Realization of LED Display Screen Based on Embedded System |
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| Affiliation: | XIA Meng, LIU Wen - bo (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) |
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| Abstract: | Most of LED - screens only support single screen display and have difficulty in displaying large area. In allusion to problem above, a new system, under the control of core chip LPC2148 with the help of programmable logic device EPM240, was proposed to implement the network communication between industrial locale and PC by RS485. The experiment results indicate that this system can realize wide area display, refresh frequency can be more than 60Hz, and can display different multimedia information. |
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| Keywords: | ARM microprocessor CPLD LED display screen RS485 |
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