Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h7rs/STM32H7R/FLASH/FLASH_FCR#0x0
FLASH status register
Root code check flag clear Set this bit to clear RCHECKF bit in FLASH_SR.
https://github.com/modm-io/cmsis-svd-stm32