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用的STM32单片机，通过I2C读取电源信息，电压，温度都是正常范围，就是电流，一直只有20多mA,用万用表打，电流有200多到300mA,不知道是怎么回事，有知道的可以解释一下吗，谢谢了，被弄得头大了
