Design of SDRAM Controller with Arbiter for TFT-LCD Driver

XUE Jia-xiang; HUANG Ze-lin; SHEN Dong; CHEN Xiao-shi

doi:10.3788/YJYXS20132806.0877

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Design of SDRAM Controller with Arbiter for TFT-LCD Driver

Driving & Controlling | 更新时间：2020-08-12

- Design of SDRAM Controller with Arbiter for TFT-LCD Driver
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 6, Pages: 877-882(2013)
- 作者机构：
  
  1. 华南理工大学机械与汽车工程学院,广东广州,510640
  2. 华南理工大学电子与信息学院, 广东广州 510640
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132806.0877
  CLC： TN873
- Received：01 April 2013，
  
  Revised：08 May 2013，
  
  Published：15 December 2013
- 稿件说明：
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薛家祥, 黄泽林, 沈栋, 陈晓仕. TFT-LCD驱动中SDRAM控制器的仲裁器设计[J]. 液晶与显示, 2013,28(6): 877-882

XUE Jia-xiang, HUANG Ze-lin, SHEN Dong, CHEN Xiao-shi. Design of SDRAM Controller with Arbiter for TFT-LCD Driver[J]. , 2013,28(6): 877-882
薛家祥, 黄泽林, 沈栋, 陈晓仕. TFT-LCD驱动中SDRAM控制器的仲裁器设计[J]. 液晶与显示, 2013,28(6): 877-882 DOI： 10.3788/YJYXS20132806.0877.

XUE Jia-xiang, HUANG Ze-lin, SHEN Dong, CHEN Xiao-shi. Design of SDRAM Controller with Arbiter for TFT-LCD Driver[J]. , 2013,28(6): 877-882 DOI： 10.3788/YJYXS20132806.0877.

摘要

针对TFT-LCD驱动中常用SDRAM控制器的不足，在FPGA器件上设计了SDRAM控制器的仲裁器；仲裁器根据TFT-LCD驱动的特点分配SDRAM控制器使用权，实现了在TFT-LCD正常显示的同时外部设备可在任意时刻连续地向SDRAM写入数据，而不出现数据丢失或者错误的现象。文章从FIFO深度、SDRAM突发长度和不同模块时钟频率等方面考虑，介绍了仲裁器的设计方法，给出了仲裁器各项参数值的设计公式。实验结果表明设计的有效性。

Abstract

Faced with the drawback of widely-used SDRAM controller in TFT-LCD driver

a arbiter for SDRAM controller is designed in FPGA device. The arbiter has the right to distribute the use of data and address buses. In this way

the ideal function is realized that the image data can be updated by means of the external device while the LCD is still at work. In the paper

the design method of the arbiter is introduced. Various parameters of the arbiter are worked out after considering the depth of FIFO

the burst length of SDRAM

the operating frequencies of different components and so on. Therefore

the loss or errors in data can be avoided when the SDRAM controller is under the control of the arbiter.

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references

吉倩倩,苏光大,向守兵.嵌入式邻域图像并行处理机的液晶显示系统设计 [J]. 液晶与显示, 2011,26(6):768-773.[2] 成军,倪旭翔,陆祖康.SDRAM在LCOS液晶驱动接口电路中的应用实现 [J]. 光学仪器, 2005,27(4):26-30.[3] 方勇,吕国强,彭良清,等.3D显示器视频转换系统设计及其FPGA实现 [J]. 液晶与显示, 2007,22(1):94-98.[4] 熊文彬,蒋泉,曲建军,等. 基于FPGA实现的视频显示系统 [J]. 液晶与显示, 2011,26(1):92-95.[5] 王骞,丁铁夫.高速图像存储系统中SDRAM控制器的实现 [J]. 液晶与显示 ,2006,21(1):48-51.[6] 唐徐立,黄君凯,刘明峰,等.基于FPGA的TFT-LCD控制器设计与实现 [J]. 半导体技术, 2011,35(11):1134-1137.[7] 周昆正.基于FPGA的SDRAM控制器设计 [J]. 现代电子技术, 2003,(13):63-66.[8] ALTERA.Cyclone II datasheet [EB/OL].[2008-2-10]. http://www.altera.com.cn.[9] SAMSUNG. K4S1632N datasheet [EB/OL].[2008-08-20]. http://www.samsung.com.

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Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China, E-mail:yinzhuxia316@163.

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