2025-08-15 2:49 AM
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.
What's wrong with my config? Or is there any misunderstanding by me?
Thanks for your help!
Solved! Go to Solution.
2025-08-15 3:38 AM - edited 2025-08-15 3:50 AM
Hello @Junde ,
I think you are selecting STM32H755xxx3!!
Try select STM32H755xxx6 with which you can reach 480MHz.
2025-08-15 3:32 AM
Hello @judet
Please take a look at this article : How to reach 480MHz for STM32H7xx MCUs - STMicroelectronics Community
Kind regards,
2025-08-15 3:38 AM - edited 2025-08-15 3:50 AM
Hello @Junde ,
I think you are selecting STM32H755xxx3!!
Try select STM32H755xxx6 with which you can reach 480MHz.
2025-08-26 9:39 AM - edited 2025-08-26 9:40 AM
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.