STM32 OTG FS device and host drivers extended so that they can support either...

STM32 OTG FS device and host drivers extended so that they can support either the OTG FS peripheral or the OTG HS peripheral (in FS mode).  This was done as a quick way to get USB support on the STM32F429 which has only OTG HS.  From Ken Pettit