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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

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!

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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.