Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F7x8/CAN1/BTR#0x0
bit timing register
BRP
TS1
TS2
SJW
LBKM
SILM
https://github.com/cmsis-svd/cmsis-svd-data