About Jcorn.19

Jcorn.19 · 2019-06-25

Hello EverybodyI started using Nucleo-F401RE (MB1136 C-04) a few months ago and I am trying to understand how work the SystemInit() function and the clock setting.As IDE, I use SystemWorkbench/AC6.When I start a new project using HAL or LL drivers, t...

Jcorn.19 · 2019-09-02

Oops sorry, I did not see the | operator !OK for the reset value of PLLCFGR, but it seems me quite strange for a F401RE whose max freq is 84MHz.

Jcorn.19 · 2019-08-30

Hello everybodyAfter summer I dive again in the init files of the stm32 (NucleoF401RE) and I have a lot of questions about the SystemInit() function that I found in the system_stm32f4xx.c.In this function, there are successively the following instruc...

Jcorn.19 · 2019-07-01

Hello and sorry for the delay but I was busy with my grandson !If I do understand what you said, set or reset the HSEBYP bit has no influence on what is running inside the board, except perhaps the pin 31 which can then be used as GPIO if HSEBYP=0 ?A...

Jcorn.19 · 2019-06-26

Thank you very much for all these precisions.But I have still a question about BYPASS (a mystery for me who am only an old math teacher). I read in this post https://community.st.com/s/global-search/stm32F4%20bypass that Nucleo boards derive the 8MHz...

Jcorn.19 · 2019-06-25

Thank you very much Clive.Among the various multipliers and dividers, I did not see the PLLSRC bit of the RCC_PLLCFGR.Now it is a little more evident for me.

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STM32-F401RE About clock Setting in various system_stm32f4xx.c files

Re: STM32-F401RE About clock Setting in various system_stm32f4xx.c files

Re: STM32-F401RE About clock Setting in various system_stm32f4xx.c files

Re: STM32-F401RE About clock Setting in various system_stm32f4xx.c files

Re: STM32-F401RE About clock Setting in various system_stm32f4xx.c files

Re: STM32-F401RE About clock Setting in various system_stm32f4xx.c files