Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32G473xx/TIM1/ECR#0x0
DMA control register
Index Enable
Index Direction
Index Blanking
First Index
Index Positioning
Pulse width
Pulse Width prescaler
https://github.com/cmsis-svd/cmsis-svd-data