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

Javier1
Principal

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

we dont need to firmware by ourselves, lets talk
1 ACCEPTED SOLUTION

Accepted Solutions

0693W00000Np2PMQAZ.png

we dont need to firmware by ourselves, lets talk

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3 REPLIES 3
Javier1
Principal

Looking into stm32f1xx_hal_rcc_ex.h

0693W00000Np2NLQAZ.png 

we dont need to firmware by ourselves, lets talk
Javier1
Principal

From the RM0008 reference manual (page 126) :

It looks like stm32105 is a "connectivity line device"

0693W00000Np2OOQAZ.png

we dont need to firmware by ourselves, lets talk

0693W00000Np2PMQAZ.png

we dont need to firmware by ourselves, lets talk