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bq40z50 设置电池串数为4串无效

上位机Battery Management 在Date Memory设置DA Configguration 的CC1  CC0 为1 1,电池还是显示3节的电池电量,复位了没有用,换了一个板子也是这样,但是BAT pin Voltage显示的总电压是对的上的,请问该怎么解决?