采集5V电压信号,通过分压之后使用MSP430F169单片机内部AD采集信号。采集的电压信号不是很准,而且当输入为0V电压时,采集到的电压不为0,并在示波器上观察到几百毫伏的电压。
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采集5V电压信号,通过分压之后使用MSP430F169单片机内部AD采集信号。采集的电压信号不是很准,而且当输入为0V电压时,采集到的电压不为0,并在示波器上观察到几百毫伏的电压。