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从读取的数据来看,是不是可以理解为写入寄存器的值不一定是我想配置的?
是的,可能由通信干扰造成识别错了。
ACK 是低电平,不是高电平。当发送方发完数据释放SDA后,由数据接收方控制SDA,接收方控制SDA为0低电平,这个低电平就是对发送方的应答信号。