Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f4/STM32F412/OTG_FS_DEVICE/DIEPINT1#0x0
device endpoint-1 interrupt register
XFRC
EPDISD
TOC
ITTXFE
INEPNE
TXFE
https://github.com/modm-io/cmsis-svd-stm32