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oseaw.1
oseaw.1
Associate
April 6, 2023
Solved

Clock Setup Issue on STM32H743 with 25MHz HSE for Maximum 480MHz System Clock

  • April 6, 2023
  • 1 reply
  • 1864 views

I am reaching out to seek your expertise regarding a clock setup issue that I encountered while using the STM32H743 microcontroller.

My goal is to use up to a maximum of 480MHz system clock using a 25MHz HSE. However, I have encountered some errors in red while setting up the clock in STM32CubeIDE. I am unsure why these issues have occurred, and I would greatly appreciate any insights you may have.

My main question is whether it is possible to achieve a 480MHz system clock using a 25MHz HSE. I would be grateful for any advice you may have regarding this matter.


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Best answer by Foued_KH

Hello @oseaw.1​ ,

For the STM32H743 , we have 3 revision :

0693W00000Y8BccQAF.png 

Use silicon revision V devices to reach a maximum frequency of 480 MHz.

Foued

1 reply

Foued_KH
Foued_KHBest answer
ST Employee
April 6, 2023

Hello @oseaw.1​ ,

For the STM32H743 , we have 3 revision :

0693W00000Y8BccQAF.png 

Use silicon revision V devices to reach a maximum frequency of 480 MHz.

Foued

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