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Senior
April 9, 2024
Question

printf SWO, stlink

  • April 9, 2024
  • 5 replies
  • 4230 views

Hello everyone,

I program on stm32h757 with stm32cube IDE on macOS Sonoma. (stlink v3 minie)
Until recently, I debugged with the st link and displayed printf in the swv console without any problem.
For technical reasons, I made the program work with the st link and the J trace. Since then, printf only works with the J Trace.
When I use the st link, I get an error message at start-up (see attached image)
Can anyone help me?

 

Capture d’écran 2024-04-08 à 17.33.37.png

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    5 replies

    Rim LANDOLSI
    ST Employee
    April 9, 2024

    Hello @MA4  and welcome to the community,

    Could you please try the following tips to resolve this issue:

    • Ensure that the ST-LINK USB drivers are installed or reinstall from here 
    • Check that the USB cable is properly connected to the PC.
    • Download the SEGGER STLinkReflash utility from this link 
    • Start the STLinkReflash utility and restore ST-LINK
    • Agree to the license terms
    • Connect to CubeIDE and perform an ST-link firmware upgrade
    • In the debug configuration, change the debugger to ST-LINK GDB Server. Do not forget to apply and close.

    Hope this helps!

    Thanks,

    Rim.

    MA4Author
    Senior
    April 9, 2024

    Hello, thank you for your answer.

    I still have the problem, same error message and the st link stops responding(Target is not responding, retrying... Shutting down... Target is not responding, retrying...)

    I tried with another st link and same thing.
    Is it possible that I have a problem with initialisation?

    MA4Author
    Senior
    April 9, 2024

    Same error if I create a new project, if I upgrade de link, if I follow tuto only with printf

    MA4Author
    Senior
    April 11, 2024

    I modified my debug configuration by checking "limit to clock" and setting 2000 kHz to max and now I get the error:

    SWO trace already running on another core.

    Capture d’écran 2024-04-11 à 11.59.39.png

    Capture d’écran 2024-04-11 à 12.01.36.png

     

    Any Idea ?

    MA4Author
    Senior
    April 11, 2024

    after few try error comme back ...