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不知道你的测试问题出在哪里,能详细点说明一下吗?
线性度补偿基本做法是参考ADC用户手册的说明:1.8 ADC Calibration,里面提到了如何通过ADCREFSEL和ADCOFFTRIM分别补偿零偏或增益,另外,更多的原理可以参考应用手册:F2810, F2811, and F2812 ADC Calibration和TMS320280x and TMS3202801x ADC Calibration.