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采用的4*4键盘，电压是3.15V，I2C写数据一直没有ACK，键盘按下，INT一直是高电平没有拉低，调试了好久一直没有效果，请支持下。附件是电路图和波形图。其中起始0X68 reg：0X0A DATA:0XAA
其中起始0X68 reg：0X0A DATA:0XAA