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arnold_w
Senior II
January 4, 2019
Solved

Where do I find the drawing that shows what clock is routed to the different peripherals?

  • January 4, 2019
  • 2 replies
  • 657 views

I am working with the STM32F4 and STM32F7 microcontroller families. I am sure that I, at some point, have seen a drawing that shows how the different clocks are routed to different peripherals. This drawing was very helpful when I had questions like "what clock is UART2 running from?", "what clock is the CAN1 running from?", etc. However, now I'm unable to find the drawing, I have looked in the reference manuals and the data sheets, but to no avail. Could someone please point me in the right direction?

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    Best answer by Uwe Bonnes

    Look at the reference manual in the 2.2 Memory Map. It tells what devices are connected to what bus. CAN1 for example is connected to APB1.

    2 replies

    Uwe Bonnes
    Uwe BonnesBest answer
    Chief
    January 4, 2019

    Look at the reference manual in the 2.2 Memory Map. It tells what devices are connected to what bus. CAN1 for example is connected to APB1.

    arnold_w
    arnold_wAuthor
    Senior II
    January 4, 2019

    Thanks