is there a STM32(F7) usbd_core.c and FreeRTOS implementation or example anywhere?

I have a fairly large project and I am almost ready to begin beta testing but I have one problem left. The USB device code is still running in the IDLE thread. I haven't been able to find a version of usbd_core.c that has RTOS implemented like usbh_core.c. I amthankful the usbd_core code works so well that I didn't have to do much to it but I am at a bit of a loss as to how to get it out of the IDLE thread and into its own thread. Any help or links to an RTOS implementation would be greatly appreciated.