H753ZI - UsbX Device not recognized error

ugurtumer4 · ‎2025-03-27

Hi,

I'm having an issue implementing USB device composite functionality on my Nucleo-H753ZI board. I've been following the tutorial series at https://community.st.com/t5/stm32-mcus/how-to-implement-the-usb-device-composite-class-in-stm32-using/ta-p/645017 to set up a composite device using USB_OTG_FS in device-only mode.

I've also examined and tried implementing the example code from the official ST repository at https://github.com/STMicroelectronics/x-cube-azrtos-h7/ but I still couldn't solve the issue.

USB_OTG_FS:

Clock Configuration:

Usbx:

FBL · ‎2025-03-28

Hi @ugurtumer4

Would you attach your project to help us check your setup?

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

ugurtumer4 · ‎2025-03-28

Thank you for your valuable response. I fixed the problem. Even though the clock settings were properly configured for USB at 48 MHz in both cases, I believe I was experiencing issues due to my HSE frequency configuration.

I'm sharing both the problematic and working .ioc files for clock configurations.