Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h5/STM32H523/DCMI/DCMI_CWSTRT#0x0
VST=B_0x0000
DCMI crop window start
Horizontal offset count
Vertical start line count
0 (B_0x0000): line 1
1 (B_0x0001): line 2
2 (B_0x0002): line 3
https://github.com/modm-io/cmsis-svd-stm32