Cortex-M4核Kinetis平台的电容式触摸键盘设计

Microcontrollers & Embedded Systems(2012)

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Abstract
针对传统机械式按键的不足,采用飞思卡尔Kinetis平台K60系列MCU,设计了一种电容式触摸键盘。阐述了电容式感应触摸原理,介绍了K60系列MCU的内部TSI模块工作机制,给出了简化的接口设计和键盘PCB布局方法,最后详细地分析了TSI模块软件驱动设计流程。
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Key words
keyboard PCB layout,TSI module,capacitive touch,Kinetis,Cortex-M4
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