STM32H7XIH6 PC2 & PC2_C ADC Capture issue

[JYUNWEI wu]

Hi programmer Master,

I used two ADC of PC2 & PC2_C to capture input voltage 1.8V & 3.3V in different channel, but it always got the same data no matter what it used which ADC channel. Even though, I checked SYSCFG_PMCR PC2SO: PC2 Switch Open(RM0399 page 588) and Analog inputs connected to ADC inputs (RM0339 page 576 & 577), but it also be gotten the same voltage, I don't know why?

Have someone met the same issue? Could you please help me?