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您好,看下内部简单架构,IO要么为高电平(Q1导通,Q2关闭)。要么为低电平(Q1关闭,Q2导通)。您现在遇到的问题是P06 port被拉低导致I2C异常。
有做什么动作导致被拉低了吗?之前都是正常工作的?
另外R23这里是0ohm电阻吗?去掉R23能解决的意思,是断开R23这里吗,相当于和U1断开吗?但是您上面也提到去掉U1同样问题复现,所以不太理解您这里的意思。