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键盘的应用

键盘的应用. 1 、键盘的分类 键盘分编码键盘和非编码键盘。键盘上闭合键的识别由专用的硬件编码器实现，并产生键编码号或键值的称为编码键盘，如 BCD 码键盘、 ASCLL 码键盘等；而靠软件来识别的称为非编码键盘； 在单片机组成的测控系统及智能化仪器中，用的最多的是非编码键盘。. 非编码键盘有分为：独立式非编码键盘和行列式非编码键盘。. 按键在闭合和断开时，触点会存在抖动现象：. 0 1 2 3 ee de be 7e 4 5 6 7 ed dd bd 7d 8 9 A B eb db bb 7b

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键盘的应用

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  1. 键盘的应用

  2. 1、键盘的分类 • 键盘分编码键盘和非编码键盘。键盘上闭合键的识别由专用的硬件编码器实现，并产生键编码号或键值的称为编码键盘，如BCD码键盘、ASCLL码键盘等；而靠软件来识别的称为非编码键盘； • 在单片机组成的测控系统及智能化仪器中，用的最多的是非编码键盘。

  3. 非编码键盘有分为：独立式非编码键盘和行列式非编码键盘。非编码键盘有分为：独立式非编码键盘和行列式非编码键盘。

  4. 按键在闭合和断开时，触点会存在抖动现象：

  5. 0 1 2 3 • ee de be 7e • 4 5 6 7 • ed dd bd 7d • 8 9 A B • eb db bb 7b • C D E F • e7 d7 b7 77

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