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我利用ADC采样，但我输入的模拟信号里面有负值的成分，可不可以将DSP里面的ADCLO引脚设置成负值，就可以实现将小于0的信号输入到ADC中
不可以，Lo引脚的最低输入是VSSA
没有一个脚可以接负电压
