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TI蓝牙开发板的五向键工作原理



最近准备做一块带五和向键的板,想参照TI的来做,如下图,我可不可以理解为,当我按下某键就会触发P2.0的中断,在P2.0的中断程序中调用AD读取程序来识别某个按键被按下了,然后打包给应用层来处理,