| 由单片机串口扩展的多位LED显示接口电路 |
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| 引用本文： | 韩静,王熙. 由单片机串口扩展的多位LED显示接口电路[J]. 黑龙江八一农垦大学学报, 2007, 19(6): 42-45 |
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| 作者姓名： | 韩静 王熙 |
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| 作者单位： | 黑龙江八一农垦大学信息技术学院,大庆,163319;黑龙江八一农垦大学工程学院 |
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| 摘 要： | 为了提高单片机系统I/O口线的利用效率,利用单片机89C2051的串行口和串行移位寄存器74HC595扩展输出多位LED显示.文中详细说明了该电路的硬件设计及编程思路,并给出了参考程序.利用该方法设计的多路LED显示电路具有硬件结构简单、软件编程容易和价格低廉等特点.
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| 关 键 词： | 单片机 串行口 LED显示 |
| 文章编号： | 1002-2090（2007）06-0042-04 |
| 收稿时间： | 2007-11-08 |
| 修稿时间： | 2007-11-08 |
Multipath Led Display Interface Circuit by Using Single Chip Microcomputer Serial Port |
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| HAN Jing,WANG Xi. Multipath Led Display Interface Circuit by Using Single Chip Microcomputer Serial Port[J]. journal of heilongjiang bayi agricultural university, 2007, 19(6): 42-45 |
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| Authors: | HAN Jing WANG Xi |
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| Abstract: | In order to improve the efficiency I/O in single chip machine system, the 89C2051 singlechip machine serial port and 74HC595 shift register were used to implement display on multipath LED display. This paper illustrated the operation principle of the circuit in detail and presented the referenced program. The multipath LED display system designed with the method was provided with excellences such as simple in hardware structure, easy in software programming and low in price. |
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| Keywords: | single chip microcomputer serial port LED display |
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