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bq34z100g1 evm板电池电压监测问题



电池电压大于5v,使用板上外部分压电路,j5的7,8脚相连,5,6脚相连,见bq34z100g1文档p48图13,但是测量bq34z100g1芯片第四脚bat测不到电压,用示波器看只有一个100多ms的脉冲信号,请问电路上是怎么实现的,难道发测试指令时才有电压值过来?