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我用其他mcu的I2C接口（软件模拟）读取BQ27541的电压寄存器（0x08），读取过程为发送0xAA->发送0x08->发送0xAB->读取，发现读取出来的值是0，好像无论那个寄存器都是，是不是有什么东西需要配置呀？
