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Visitor II
April 7, 2023
Question

STM32F103 LD3 light is always red when USB is connected

  • April 7, 2023
  • 4 replies
  • 1916 views

I'm trying to build a simple hello world program with STM32F103 board using SWD debugger and ITM feature. But when I plug my USB cable on my PC, I have my LD1 and LD3 always in red light. Is that a problem? If so, how to solve?

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    4 replies

    Graduate
    April 7, 2023

    What board?

    TAGUI.1Author
    Visitor II
    April 8, 2023

    STM32 NUCLEO-F103RB

    STM32F103RBT6

    Super User
    April 8, 2023

    same on my board, both red.

    can you connect with CubeProgrammer ?

    Visitor II
    April 8, 2023

    I have been facing the same issue. both red!

    Super User
    April 8, 2023

    ..thats correct !

    when connected CubeProgrammer -> STlink -> board, Ld1 blink red/green , disconnected is red only.