I am using one usb-nfc dongle from microE, to integrate it with my board. That dongle is already has code of HID and it is stand alone is working fine (when I connected it to my laptop directly), however am facing challenges when I connected it with the stm32 controller. I am using stm32f series controller and created the stand alone project for USB only as Host. and flashed it to the board and I connected the dongle. Dongle is not working as expected. Anything am missing here kindly guide me here. However as soon as i connected the dongle interrupt is generating I could see that while debug but cannot proceed further.