Hi I am having the same problem as described in the old post down below.... is there a way to activate the link inside to see the fix?
I am also using the external ULPI PHY, but when the USBD_Connect function executes, pin PB14 is lost. This is becasue the USBD_Connect function is enabling the internal PHY. I know there is a way to fix this but do not remember how. I needed to reinstall the whole environment so the fix was lost and now the code does not work since I need pin PB14 as a GPIO.
Here the post I am referring to:
https://community.st.com/t5/stm32-mcus-products/stm32f4xx-spi2-and-usb-hs-conflict/td-p/438246
Regards
Mark
