| 基于I2C接口的键盘/LED显示模块 |
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| 引用本文： | 李昔华.基于I2C接口的键盘/LED显示模块[J].重庆工商大学学报(自然科学版),2004,21(5):485-487. |
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| 作者姓名： | 李昔华 |
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| 作者单位： | 重庆工商大学,计算机科学与信息工程学院,重庆,400067 |
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| 摘 要： | 介绍了一种基于AT89C2051微控制器的键盘／LED显示模块设计方法，对模块的结构与外部扩展电路以及控制芯片中各个功能寄存器的内容和操作方法作了较详细的说明。重点介绍了MCS-51单片机在模拟I^2C总线通信协议中从控制器通信接口的软、硬件实现原理。
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| 关 键 词： | 键盘 I^2C接口 LED显示 功能寄存器 模块 MCS-51单片机 AT89C2051 I^2C总线 通信协议 硬件实现 |
| 文章编号： | 1672-058X(2004)05-0485-03 |
Design of display module for LED keyboard based on I2C interface |
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| LI Xi-hua.Design of display module for LED keyboard based on I2C interface[J].Journal of Chongqing Technology and Business University:Natural Science Edition,2004,21(5):485-487. |
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| Authors: | LI Xi-hua |
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| Abstract: | This paper introduces the design method of the display module for LED keyboard based on AT89C2051 miccontroller, and illuminates the structure and the exterior expand circuits of the module, along with the content and operation ways of each functional registers in controller chip in detail. And the paper emphasizes on the principle to realize the software and hardware communication interface of the subordinate controller in simulating the I~2C bus communication protocol. |
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| Keywords: | I~2C bus principal controller subordinate controller |
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