STM32F411 discovery board DFU with STM32CUBEMX generated basic DFU code not worked properly. It shows the "Device Descriptor Request fail in device manager. What is exact issue can not find? All setting done from STM32CUBEMX with standard parameter.

[VGalp.1]

Set below parameters as

#define USBD_VID    1155

#define USBD_LANGID_STRING    1033

#define USBD_MANUFACTURER_STRING    "STMicroelectronics"

#define USBD_PID_FS    57105

#define USBD_PRODUCT_STRING_FS    "DFU in FS Mode"

#define USBD_CONFIGURATION_STRING_FS    "DFU Config"

#define USBD_INTERFACE_STRING_FS    "DFU Interface"

#define USB_SIZ_BOS_DESC       0x0C

[Houssem CHAABANI]

Dear @VGalp.1​ ,

Could please share your .ioc file.

Kind regards,

Houssem