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How to set STM32H755 sysclk to 480MHz?

Junde
Senior III

Hi there,

According to the STM32H755 datasheet, the Cortex-M7 frequency can reach up to 480MHz.

However, when I configure the sysclk in STM32CubeMX, it shows the maximum frequency is 300MHz.

Junde_0-1755251128177.png

What's wrong with my config? Or is there any misunderstanding by me?

Thanks for your help!

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
Imen.D
ST Employee

Hello @Junde ,

I think you are selecting STM32H755xxx3!!

Try select STM32H755xxx6 with which you can reach 480MHz.

ImenD_0-1755255023391.png

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

View solution in original post

3 REPLIES 3
NesrynELMK
ST Employee

Hello @judet 

 

 Please take a look at this article : How to reach 480MHz for STM32H7xx MCUs - STMicroelectronics Community

Kind regards,

Imen.D
ST Employee

Hello @Junde ,

I think you are selecting STM32H755xxx3!!

Try select STM32H755xxx6 with which you can reach 480MHz.

ImenD_0-1755255023391.png

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen
Imen.D
ST Employee

Hi @Junde ,

Did you solve your problem? In case your issue is solved, please close this topic by clicking "Accept as Solution" for the correct answer.

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen