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MCU还未烧录程序，MCU还没通过I2C与BQ25703A通讯，插入电源适配器（电压12V），对2节电池充电：VBUS=12V，REGN=6V，BATDRV电压=VSYS，未对电池进行充电。
您好，BQ25703A is a host controlled device. Without I2C commands, the charging is not able to be enabled, terminated.
