dual adc input gpio is pc4(ADC1 input)、pc5(ADC2 input).ADC1 gpio pc4 input sine wave,ADC2 gpio pc5 input is floating.when dma mode use ADC_DMAAccessMode_2,ADC2 last sample data is also sine wave,why?when change dma mode is ADC_DMAAccessMode_1,ADC2 re...