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October 27, 2025
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STM32N645B0: TIM8 not available

  • October 27, 2025
  • 3 replies
  • 243 views

Hello Community,

I have tried to configure TIM8 in CubeMX (Version 6.15.0) with device STM32N645B0 (VFGBA198). But TIM8 is not available in the Timers Group. All other timers are displayed, only TIM8 is missing.

Also trying to activate TIM8 over the pin directly does not work.

Any ideas?

Best regards

Thomas

Best answer by Souhaib MAZHOUD

Hello @Thomas_N 

Thank you for posting!

Actually, after checking, as mentioned in DS14791 Rev. 7, only one Advanced Control Timer is supported for this part number, in this case only TIM1 is supported.

SouhaibMAZHOUD_0-1761580869808.png

 

KR, Souhaib

 

3 replies

Souhaib MAZHOUDBest answer
Technical Moderator
October 27, 2025

Hello @Thomas_N 

Thank you for posting!

Actually, after checking, as mentioned in DS14791 Rev. 7, only one Advanced Control Timer is supported for this part number, in this case only TIM1 is supported.

SouhaibMAZHOUD_0-1761580869808.png

 

KR, Souhaib

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
Issamos
Lead III
October 27, 2025

Hello @Thomas_N 

The STM32N645B0 have only 1 advanced control timer (TIM1):

Issamos_0-1761580987290.png

so, the TIM8 does not exist on the STM32N645B0.

Best Regards.

II

Thomas_NAuthor
Associate
October 27, 2025

Thank you very much for the quick answer.

I should have read the entire data sheet first...