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[1]李文华,龚宸.单片机控制高容量安全数字卡的应用设计[J].武汉工程大学学报,2012,(7):71-74.[doi:103969/jissn16742869201207015]
　LI Wen\|hua,GONG Chen.Application design of high capacity secure digital card based on controlling of single-chip microcomputer[J].Journal of Wuhan Institute of Technology,2012,(7):71-74.[doi:103969/jissn16742869201207015]
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单片机控制高容量安全数字卡的应用设计(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年7期
页码:
71-74
栏目:
机电与信息工程
出版日期:
2012-07-30

文章信息/Info

Title:
Application design of high capacity secure digital card based
on controlling of single-chip microcomputer
文章编号:
16742869(2012)07007104
作者:
李文华1; 龚宸2
1.湖北仙桃职业学院机械电子工程学院，湖北 仙桃 433000;2. 华中师范大学计算机与科学系，湖北 武汉 430000
Author(s):
LI Wen\|hua1;  GONG Chen2
1.School of Mechatronics Engineering ,Xiantao Vocational College ,Xiantao 433000,China;
2. School of Computer and scinence ,Huazhong Normal University ,Wuhan 430000, China
关键词:
嵌入式系统; 安全数字卡; 存储器升级
Keywords:
-
分类号:
TP37
DOI:
103969/jissn16742869201207015
文献标志码:
A
摘要:
为了解决高容量安全数字卡在嵌入式系统中不能访问的问题，通过分析高容量安全数字卡与标准容量安全数字卡的差异，提出了用串行外设接口访问控制高容量安全数字卡的方法，用飞思卡尔MC9S12XS128单片机作为嵌入式微处理器，用宇瞻4千兆字节的高容量安全数字卡作为控制对象，设计了高容量安全数字卡的控制电路和访问程序.先用单片机向高容量安全数字卡的指定扇区中写入数据，然后用单片机读取安全数字卡中所写入的数据，最后对所读出的数据与所写入的数据进行比较.实验表明，单片机所读出的数据与写入高容量安全数字卡的数据一致,采用串行外设接口访问控制高容量安全数字卡可以实现嵌入式系统的存储器升级.
Abstract:
In order to solve the problem that the high capacity digital card cannot be accessed in the embedded system, we put forward the method of controlling the high capacity secure digital card by the serial peripheral interface access after analyzing the difference between the high capacity secure digital card and standard capacity secure digital card. With Freescale single chip MC9S12XS128 chosen as an embedded microprocessor and the high capacity secure digital card of an Apacera 4Giga byte as the controlled object, the control circuit and the access program of the high capacity secure digital card were designed .First , the single chip wrote the data to the designated sector of the high capacity secure digital card,and then read the written data in the card, finally the written data were compared with the read data. The experimental result shows that the read data agree with the written data and the instrument can be applied in the embedded systems upgrade.

参考文献/References:

参考文献:
［1］罗肖，刘军，杨辉.嵌入式安全存储系统的研究［J］.武汉工程大学学报,2012,34（2）:67-70.
［2］盛李立，王忠，王春丽,等.基于SPI接口的无线网卡设备驱动设计［J］.武汉工程大学学报, 2011,33(6)：89-97.
［3］孙同景.Freescale 9S12十六位单片机原理及嵌入式开发技术［M］.北京:机械工业出版社,2008.
［4］王效华，牛思先.基于单片机PWM控制技术的实现［J］.武汉理工大学学报，2010,32（1）：94-98.
［5］李文华.单片机应用技术（C语言版）［M］.北京:人民邮电出版社,2011.
［6］SD卡委员会.SD specifications part1(physicial layer smplified specification version 3.01)［R］. Technical Committee SD Card Assiociation,2010(5):113-116.

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备注/Memo

备注/Memo:
收稿日期：20120424作者简介：李文华(1966-)，男，湖北仙桃人，副教授.研究方向:嵌入式系统开发与应用.
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