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28035 AD输入口接GND时,对应的AdcResult.ADCRESULT值不为零,为13左右,如何校准



请教一下,使用28035 AD读取输入口接GND的引脚是,AdcResult.ADCRESULT值不为零,为12~14左右,查看到ADCOFFTRIM也为11,很接近,想咨询一下这个AdcResult.ADCRESULT值是已经减去了ADCOFFTRIM后所得的值吗?

如果不是,如何使得AdcResult.ADCRESULT自动为减去ADCOFFTRIM后的值,如何设置?