Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb/STM32WB30_CM4/RCC/HSECR#0x0
Clock HSE register
Register lock system
HSE Sense amplifier threshold
HSE current control
HSE capacitor tuning
https://github.com/modm-io/cmsis-svd-stm32