Using STM32H753ZITx processor family with USB HS and USB device comes up as unknown.

[Matt.1]

Used STM32CubeMX v5.6.0 to auto generate code to be used in IAR v 8.50.1.

No user modifications have been made, just the auto generated code.

When code built and downloaded to processor which is STM32H753ZIT6 no errors reported and code runs, however, USB reported as unrecognised device. Tried connected to several different machines and still USB unrecognised.

Should there be any user configuration for the USB added above and beyond the auto generated cube code?

[Pavel A.]

Custom board or one of ST evaluation boards?

-- pa

[Matt.1]

Its a custom board.

[JoniS]

What's the error code and description your PC does give?

And can you post picture of the schematic how the USB is connected.​

[Matt.1]

Thanks for the response, As quoted "Windows has stopped this device because it has reported problems. (Code 43) A request for the USB device descriptor failed."

Schematic will have to be on monday as not my design.