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感觉你数据处理过程出了问题，你AIN分别接VCC和GND，看看读出来的AD内码对不对呢？
用1/3电源作參考電壓值是1.25V、HAL_ADC_RESOLUTION_10的滿刻度是511、所以讀值172転成電压=1.25x172/511=0.42，接近你ADC腳位的電压無誤
