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Associate II
August 7, 2025
Question

STM32H7S78-DK USB hangs in init

  • August 7, 2025
  • 2 replies
  • 730 views

Hello, I am trying to utilize the USB peripheral in STM32cubeIDE with the STM32H7S78-DK. It hangs forever in MX_USB_INIT on a function USB CORE RESET. With FS and HS this same issue seems to be happening. Pictures show config in the GUI and the aforementioned function.

2 replies

AScha.3
Super User
August 7, 2025

Hi,

So you have device USB enabled,

For... What kind of device?

I don't see any...

What you want?

 

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mtc65536Author
Associate II
August 7, 2025

Hello,
I wish to use it as communication device class, or human interface device class. At the moment I have been configuring it as communication device class in the GUI.

AScha.3
Super User
August 7, 2025

So you set CDC/VCP in Cube?

Int for USB enabled in NVIC settings?

Then it should work, out of the box.

But I don't yet try it on H7S7, only H743, H7A3...

So no guarantees....

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Associate III
August 12, 2025

Hello @mtc65536 

I have the same problem, the application hangs at USB CORE RESET,  and I don't understand why. Did you solve the problem?

Associate III
August 12, 2025