STM32F407ZG — How to set frequencies correctly?

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TheShadowOfTriumph
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Flowcode v10 STM32F407ZG — How to set frequencies correctly?

Post by TheShadowOfTriumph »

Hi, were no problems with this before. About project: 407 with 10 UART`s.
I have tried many configurations calculated in Cube, but every time some problems occur.
1.Delay <ms> component working correct.
2.Timer interrupt works 10 times faster, then calculated value. How setting controlled interrupts?
3.Now i try configuration on picture — peripheral devices confidently receive only 1200bps (UART timings wrong? I allways use software UART`s). How setting controlled UARTS? Preferals are works normal, can communicate with high speed, tested with PC/CH340.
4.With HCLK 168MHz preferal UART`s do nothing (pull-up voltage without any data).

Now, what i want:
1.Choose real settings with current project — important! Strategy is incerasinc core frequency as possible. Quartz is 8M.
2.Get a deep understanding of this.
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2026-03-04_223317.png (146.75 KiB) Viewed 27 times

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