| 单片机串行口的妙用 |
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| 引用本文： | 言志红. 单片机串行口的妙用[J]. 湖南工业大学学报, 2000, 14(5) |
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| 作者姓名： | 言志红 |
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| 作者单位： | 株洲市交警支队,科技所,湖南,株洲,412000 |
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| 摘 要： | 在实际应用中串行口一般都是用作通讯口 ,而在某些不需要通讯的情况下 ,利用串行口再加上一些外围芯片 ,就可以组成一个或多个并行输入 /输出口 ,用作单点信号机的状态显示和键盘控制 ,以便解决键盘和显示器的问题 ,提高信号机的灵活控制程度 ,可随时监视其运行状况。
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| 关 键 词： | 单片机 串行口 串行控制寄存器 扩展 移位寄存器 接口 |
A Clever Application of the Serial Port of Single Chip Process |
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| YAN Zhi-hong. A Clever Application of the Serial Port of Single Chip Process[J]. Journal of Hnnnan University of Technology, 2000, 14(5) |
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| Authors: | YAN Zhi-hong |
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| Abstract: | Serial port is usually used as communication port.A method of how to take advantage of the serial port of single chip process is introduced.With some surrounding chips,one or several parallel input/output ports can be composed and used in the state demonstration and keyboard control of signal engine.In this way the problems of state demonstration and keyboard control can be solved and the extend of nimble control of the signal engine improved,and in addition,the state can be guarded anytime. |
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| Keywords: | single chip process serial port serial control register extension shift register interface |
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