Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wba5/STM32WBA50/CRC/CRC_INIT#0x0
CRC initial value
Programmable initial CRC value
This register is used to write the CRC initial value.
https://github.com/modm-io/cmsis-svd-stm32