Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h7/STM32H723/FDCAN1/CAN_TTGTP#0x0
FDCAN TT Global Time Preset Register
Time Preset
Cycle Time Target Phase
https://github.com/modm-io/cmsis-svd-stm32