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1. 电子科技大学中山学院,广东 中山,528402
2. 电子科技大学 自动化工程学院,四川 成都,610054
3. 电子科技大学计算机科学与工程学院,四川 成都,611731
收稿日期:2015-01-04,
修回日期:2015-03-07,
网络出版日期:2015-03-10,
纸质出版日期:2015-08-05
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周文辉, 邓春健, 官祥飞. Flash存储器下的显示数据差错控制[J]. 液晶与显示, 2015,30(4): 660-665
ZHOU Wen-hui, DENG Chun-jian, GUAN Xiang-fei. Error control of display data based on flash memory[J]. , 2015,30(4): 660-665
周文辉, 邓春健, 官祥飞. Flash存储器下的显示数据差错控制[J]. 液晶与显示, 2015,30(4): 660-665 DOI: 10.3788/YJYXS20153004.0660.
ZHOU Wen-hui, DENG Chun-jian, GUAN Xiang-fei. Error control of display data based on flash memory[J]. , 2015,30(4): 660-665 DOI: 10.3788/YJYXS20153004.0660.
Flash存储器常作为嵌入式大屏幕显示系统的显示信息存储设备
然而Flash存储器在使用时会存在诸如位反转等读写操作出错的问题
给系统的正常显示控制带来隐患。对Flash存储器存储误码率进行了分析
并结合显示数据存取的特点
设计了差错控制编码来实现Flash存储器下的显示数据差错控制。结合嵌入式控制系统的特点
设计了一种基于(31
26)循环汉明码编译码电路
在实际应用中可以将误码率降低至少1个数量级以上
提升了数据存储器抗突发干扰和随机干扰的能力
同时具有较低的设计复杂度。
Flash memory is often used as display information storage devices of embedded large screen display system
however flash memory exists errors such as bit upset in reading or writing operation
that will bring the hidden dangers to normal display of system.Flash memory error rate and display data access characteristics are analyzed to design the display data error control under flash memory.Considering the characteristics of embedded control system
a (31
26) cyclic Hamming encoding and decoding circuit is designed
which can reduce the error rate of an order of magnitude
and enhance the ability of anti burst interference and anti random interference
at the same time have the design of low complexity.
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