Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f3/STM32F3x4/HRTIM_TIMD/CHPDR#0x0
Timerx Chopper Register
Timerx carrier frequency value
Timerx chopper duty cycle value
STRTPW
https://github.com/modm-io/cmsis-svd-stm32