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Zjion.1
Associate
May 23, 2021
Question

Have you encountered the problem which the STM32H7A3VI always run with USB+ULPI in FULL Speed despite configed as HS by CubeMX

  • May 23, 2021
  • 2 replies
  • 941 views

As the title say. The Board is simply consist of STM32H7A3 and USB3343. It mainly perform USB communication with USB Host. I used CubeMx to generate the Custom HID code and done some necessary change such as I changed the end point type to bulk, etc. But it always work in Full speed mode despite of trying a lot of configurations and parameters.

Could any one know the issue? please give me some advice.

thanks a lot!

This topic has been closed for replies.

2 replies

Houda GHABRI
ST Employee
June 24, 2021

Hi @Zjion.1​ ,

Can you please tell me which board you are using?

If it is an ST board you initialize it by CubeMX ( selecting Yes for "initialize all peripherals with their default Mode?") or you configure it manually?

Houda

Visitor II
April 10, 2024

Zjion.1,

Have you resolved this issue? I am having similar issue on STM32H725 on MSC class. My ULPI interface works but for some reason, the speed is always forced to FS by the host I supposed.