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Graduate
June 2, 2025
Question

Can I use CDC-ECM with H563 ?

  • June 2, 2025
  • 1 reply
  • 457 views

Hi, Is ST proved an example of USB CDC-ECM for H563 or something similar I can use for doing a connection between my pc and my nucleo H563 with USB?

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    1 reply

    Technical Moderator
    June 2, 2025
    Gwen1Author
    Graduate
    June 4, 2025

    Hello @Saket_Om , thanks for your replied.
    As I can understand this example works with an SD card for a web server. Did you know if ST provided juste an example of communication between the ST card and PC with CDC-ECM? Like this How to implement the USB Device CDC (VCOM) in STM3... - STMicroelectronics Community but with a board that is similar to H563 ?

    Technical Moderator
    June 4, 2025

    Hi @Gwen1 

    CDC ACM and CDC ECM are different USB sub classes. Your request is confusing. If you're designing a USB device, the choice between CDC ACM and CDC ECM depends on whether your application requires serial communication or networking capabilities. 

    • CDC ACM is meant for serial communication and is used for devices that need to emulate a COM port over USB like the article you mentioned. 
    • CDC ECM is designed for networking often used to emulate an Ethernet interface over USB.

    I hope this helps!