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ADS1248使用一段时间后,数据热电偶的ADC值读出的值基本为零

Other Parts Discussed in Thread: ADS1248

使用ADS1248来测量热电偶的电压,上电一段时间后,从ADS1248读出的ADC的值就基本为零,外面的温度变化引起的热电偶的电压变化,ADS1248探测不出来,如果我重新上电,那么就可以得到正常的值。