| 基于单片机的多功能时钟控制电路 |
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| 引用本文： | 马庆勇,吴中明.基于单片机的多功能时钟控制电路[J].电子科技,2009,22(3). |
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| 作者姓名： | 马庆勇 吴中明 |
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| 作者单位： | 中国海洋大学,信息科学与工程学院,山东,青岛,266100 |
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| 摘 要： | 提出的时钟控制电路,是利用单片机AT89C2051的16住定时器做成电子时钟,并利用电子时钟的精确定时作用实现了实时控制.为了能够增加控制设备的路数,本设计还利用一片74HC374锁存器芯片扩展了5个输出端口,大大提高了电路的控制功能,满足了日常生活和自动化生产中所需要的多路多时控制要求.笔者利用本系统为某单位设计了一款"学校多功能作息时间控制器".通过近2年的运行验证,工作稳定可靠,受到了使用单位的好评.
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| 关 键 词： | 时钟控制 电子时钟 动态扫描显示 |
Multifunctional Clock Control Circuit Based on MCU |
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| Ma Qingyong,Wu Zhongming.Multifunctional Clock Control Circuit Based on MCU[J].Electronic Science and Technology,2009,22(3). |
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| Authors: | Ma Qingyong Wu Zhongming |
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| Affiliation: | Institute of Information Science and Engineering;Ocean University of China;Qingdao 266100;China |
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| Abstract: | This paper presents a clock control circuit in which an electronic clock is made by a MCU AT89C2051 16-bit timer and real-time control is achieved by the electronic clock's function of precise timing.In order to increase the number of control equipments,the design also uses a 74HC374 flip-latch the extension of the 5 output ports,which greatly improves the function of the circuit control and meet the requirements of multi-channel multi-time control in daily life and automated production.Based on this system... |
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| Keywords: | AT98C2051 74HC374 |
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