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模拟前端已经连好电池组，电池组电压正常，输出14V，cell电压均在3V以上，但是通讯失败，如图
I2C发送了一个0x16的地址信号过去，但是没有应答，这是为什么呢？电池组已插在板子上蛮久的了，模拟前端还是没回应。请问有人知道怎么激活模拟前端吗？
