Problem with USB composite device on STM32H750

[TDerk.1]

Composite device: Microphone+ Speaker+ MSC+ Hid Keyboard+ Hid Mouse.

Windows sees it in the device manager.

The packages from the Hid Mouse pass and the cursor moves.

Packets from the HID keyboard pass (visible in USBlyzer), but the keystrokes are not displayed in Windows.

There are no data from INendpoint Mic, although it is tuned through the zero endpoint. Maybe there is an application note, or examples of using composite USB? I will be grateful for any advice.

Code on github:

https://github.com/derkachtf/STM32H750_USB_composite

[KDJEM.1]

Hi @TDerk.1​ ,

Many USB Device composite examples are available in the STM32CubeH7 MCU package:

• Composite Audio-HID
• Composite CDC-HID
• Composite CustomHID-CDC
• Composite Printer-CDC

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Thank you

Kaouthar