| I2C总线在增强单片机系统安全性中的应用 |
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| 引用本文： | 王忠平,田作华. I2C总线在增强单片机系统安全性中的应用[J]. 测控技术, 2007, 26(2): 81-83 |
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| 作者姓名： | 王忠平 田作华 |
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| 作者单位： | 上海交通大学,电子信息与电气工程学院,上海,200240;上海交通大学,电子信息与电气工程学院,上海,200240 |
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| 摘 要： | 针对增强单片机系统安全性这一课题,提出了一种双机校验方法,即应用两块异构的单片机构成主从系统,通过软件模拟I2C总线进行互连通信,在主、从机端分别执行校验,以达到增强安全性的目的.
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| 关 键 词： | I2C总线模拟 安全 AT89C52 P87LPC764 |
| 文章编号： | 1000-8829(2007)02-0081-03 |
| 修稿时间： | 2006-06-22 |
Applications of I2C Bus in Security Enhancement of Microcontroller System |
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| WANG Zhong-ping,TIAN Zuo-hua. Applications of I2C Bus in Security Enhancement of Microcontroller System[J]. Measurement & Control Technology, 2007, 26(2): 81-83 |
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| Authors: | WANG Zhong-ping TIAN Zuo-hua |
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| Affiliation: | School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | A way to enhance the security of microcontroller system through an improved double check method is introduced.In this method,the master and slave microcontrollers communicate with each other through I2C bus which is simulated in software way.The check process will be carried out at both sides.Based on the check results,the security status of system will be evaluated. |
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| Keywords: | I2C bus simulation security AT89C52 P87LPC764 |
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