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BQ25890: 不充电情况下,如何利用I2C读取电池电压

Part Number: BQ25890

环境:接入锂电池(满电能到4.2V),V_SYS_MIN 设置为3.0V

现象:插入USB充电时可以利用I2C读取REG0E、REG0F、REG11等寄存器,不插入USB充电时,就不能读取I2C,bq25890像进入了睡眠模式

目的:我想要利用bq25890,不管是否接入USB充电的情况下,我都能利用I2C读取电池电压,我的软件或者硬件上需要怎么设置?

非常感谢,期待回复