| 嵌入式LED彩色异步显示屏控制系统的设计 |
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| 引用本文： | 陈东.嵌入式LED彩色异步显示屏控制系统的设计[J].西安邮电学院学报,2008,13(5):134-136. |
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| 作者姓名： | 陈东 |
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| 作者单位： | 西安邮电学院,电子与信息工程系,陕西,西安,710121 |
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| 摘 要： | 文章首先介绍了嵌入式系统和ARM的相关知识,然后介绍了LED显示屏的发展状况,并简要分析了同步屏和异步屏的工作方式。随后针对现有单片机控制的LED异步显示屏节目简单,附加功能少的缺点,提出了基于ARM7+CPLD架构的嵌入式LED彩色异步显示屏控制系统的设计方案。采用该方案控制的异步显示屏节目丰富多彩,附加功能强大,性能稳定可靠。文末对ARM9在LED显示屏控制器领域的应用进行了展望。
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| 关 键 词： | 嵌入式系统 异步显示屏 LED显示屏控制系统 嵌入式实时操作系统 |
Design of embedded LED colorized asynchronous display control system |
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| CHEN Dong.Design of embedded LED colorized asynchronous display control system[J].Journal of Xi'an Institute of Posts and Telecommunications,2008,13(5):134-136. |
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| Authors: | CHEN Dong |
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| Affiliation: | CHEN Dong (Department of Electronic and Information, Xi＇an University of Post and Telecommunications, Xi＇an 710121 ,China) |
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| Abstract: | This paper introduces knowledge of Embedded system and ARM firstly,and then introduces the development of LED display and the working of synchronous and asynchronous display.Because asynchronous LED display controlled by singlechip has simple programs and little additive functions,this paper puts forward the scheme of embedded LED colorized asynchronous display control system,which is based on the ARM7 CPLD structure.For adoption of the scheme,the asynchronous LED display can play colorful programs and has powerful additive functions,and the performance is steady and reliable.In the end,the application of ARM9 in LED display controller field is prospected. |
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| Keywords: | embedded system asynchronous display LED display control system embedded real-time OS |
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