| 现场可编程门阵列实现液晶显示控制的新方法 |
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| 引用本文： | 蒋念平,李伟.现场可编程门阵列实现液晶显示控制的新方法[J].上海理工大学学报,2009,31(2). |
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| 作者姓名： | 蒋念平 李伟 |
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| 作者单位： | 上海理工大学,光电信息与计算机工程学院,上海,200093 |
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| 摘 要： | 提出了一种用现场可编程门阵列实现阵列式液晶显示控制的方案.采用总线窃取的存储器操作方法,使外部对存储器的操作请求与显示页扫描完全独立,避免了数据读写对屏幕显示的干扰.为提高控制器对色彩的操控性能及屏幕显示效果,提出了一种多层多分块的存储器组织构架,允许在小容量存储时采用单页伪彩显示,而当存储容量扩大时自动支持多页真彩显示.在屏幕写入操作功能上,可以实现与任意指定块对应位置值的逻辑操作,为写屏操作提供了更为方便灵活的方法.
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| 关 键 词： | 现场可编程门阵列 液晶显示控制器 显存操作 色彩管理 |
New method of LCD controllor using field programable gate array |
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| JIANG Nian-ping,LI Wei.New method of LCD controllor using field programable gate array[J].Journal of University of Shanghai For Science and Technology,2009,31(2). |
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| Authors: | JIANG Nian-ping LI Wei |
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| Institution: | School of Optical-Electrical and Computer Engineering;University of Shanghai for Science and Technology;Shanghai 200093;China |
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| Abstract: | A scheme of array LCD control using a field programable gate array(FPGA) was presented.To aviod interference in screen display due to requirement of memory access,a method for memory access by bus grab was put forward to make the display completely independent from data operation and scan of screen.In order to enhance the control performance for color and screen display,a memory allocation architecture with multi-layer multi-bank structure was concerned,in which pseudo-color display with one-page one-bank i... |
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