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Javier1
Principal
May 3, 2022
Solved

Why does the stm32f103c8tx have completely different options for its PLL multipliers than stm32f105RB??

  • May 3, 2022
  • 3 replies
  • 1852 views

currently using stm32f105 (HSI+PLL) ,and i am trying to clock faster than 36Mhz

They are from the same stm32 familly, why is the PLL of the stm32f105 limited0693W00000Np2HhQAJ.png0693W00000Np2GvQAJ.png 

I am using CubeMX 6.4.0

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Best answer by Javier1

0693W00000Np2PMQAZ.png

3 replies

Javier1
Javier1Author
Principal
May 3, 2022

Looking into stm32f1xx_hal_rcc_ex.h

0693W00000Np2NLQAZ.png 

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Javier1
Javier1Author
Principal
May 3, 2022

From the RM0008 reference manual (page 126) :

It looks like stm32105 is a "connectivity line device"

0693W00000Np2OOQAZ.png

hit me up in https://www.linkedin.com/in/javiermuñoz/
Javier1
Javier1AuthorBest answer
Principal
May 3, 2022

0693W00000Np2PMQAZ.png

hit me up in https://www.linkedin.com/in/javiermuñoz/