ADUC841

Is the UART serial port of the product a dedicated debugging port? Is the UART serial port occupied when communicating with external devices?Also can realize the program In-Circuit Serial Download Access?

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    •  Analog Employees 
    on Oct 8, 2021 12:31 PM

    Hi,

    1. Is the UART serial port of the product a dedicated debugging port?

    It's not a dedicated debugging port. You can use it for normal UART communication.

    2. Is the UART serial port occupied when communicating with external devices? Also can realize the program In-Circuit Serial Download Access?

    I'm a bit confused about the question. Are you asking if you can use the device to communicate with an external device and use the In-Circuit Serial Download Access?


    If you use the In-Circuit Serial Download Access, it will require an RS-232 chip for level translation if downloading a code from the PC. You need to consider if the external device can handle the voltage translation.

    You can also implement a dongle if you do not want to design an RS-232 on the board. You can check the attached application note on a 4-wire UART-to-PC dongle.

    PDF

    Regards,

    Karl

  • Thank you for your answers!

    When I use it for normal UART communication, online debugging with PC side is not available, right?

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