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Explorer
April 18, 2024
Question

STM Virtual COM Port not working in windows 11

  • April 18, 2024
  • 4 replies
  • 2970 views

Dear ST Community,

 

I'm using Windows 11 on my PC but the device manager doesn't detect the STM32 USB VCP. Please help me fix this issue.

best regards

Neeraj

    This topic has been closed for replies.

    4 replies

    Super User
    April 18, 2024

    Hi,

    what happens , when you connect to PC/USB ? 

    If nothing at all, try other USB cable (with data lines), maybe you have a charger cable now ...

    Explorer II
    June 12, 2024

    i have the exact issue but when i connect the usb it says usb device not recognized on my pc end 

    Super User
    June 12, 2024

    So that's not the exact issue, then - is it?

    In @Neeraj's case, nothing at all happens on the PC;

    In your case, something does happen - so yours is a different issue.

     

    NeerajAuthor
    Explorer
    April 18, 2024

    I changed the cable, but the issue remains the same.

    NeerajAuthor
    Explorer
    April 18, 2024

    Neeraj_0-1713436513389.png

    I am using CDC Lib for sending messages.

    Super User
    April 18, 2024

    Please use this button to properly post source code - not as images:

    AndrewNeil_0-1713437233933.png

     

    Does anything happen at all on the PC when you plug in? eg, does it see any "unknown" device? or report any error?

    Presumably, your embedded code should also detect when it's plugged in - is that happening?

     

     

    NeerajAuthor
    Explorer
    April 18, 2024

    Nothing happening at the PC End

    Super User
    April 18, 2024

    So what about the STM32 end?

    What debugging have you done to see what's happening there?