Resolved! STM32H725VGT3TR Vref changes when I enable ADC1
I have my internal Vref set to 2.5V (stage 0). The value reads correct (2.52V) with a meter on the test point below until I call HAL_ADC_Start_DMA(). Once HAL_ADC_Start_DMA() -> ADC_Enable() -> LL_ADC_Enable() is called the voltage goes up to arou...