Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32u5/STM32U535/ADC1/ADC_CALFACT#0x0
ADC user control register
I_APB_ADDR
I_APB_DATA
VALIDITY
LATCH_COEF
CAPTURE_COEF
https://github.com/modm-io/cmsis-svd-stm32