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Error: Serial Communication failed. Need to change COM port in code composer studio

Camille Francois
Prodigy 40 points


Hello,

I am starting using Code Composer Studio to configure a MSP-EXP432P401R launchpad board with a BOOSTXL-EDUMKII boosterPack.
I connect the card yesterday it was working but today it is not working anymore.
I have the following error message :
« CORTEX_M4_0: Can't Initialize Target CPU: **Error**: Serial Communication failed at port: COM14, baud rate:9600!   To use serial monitor, please ensure the following prerequisites are satisfied:  1.    Make sure the cable is plugged into both the target and the host on the right COM port.  2.    Make sure a compatible target side serial monitor is loaded and running on the target device.
CORTEX_M4_0: Can't Initialize Target CPU: **Error**: Serial Communication failed at port: COM14, baud rate:9600!   To use serial monitor, please ensure the following prerequisites are satisfied:  1.    Make sure the cable is plugged into both the target and the host on the right COM port.  2.    Make sure a compatible target side serial monitor is loaded and running on the target device. »

I found that the port used for the usb connection is port COM3, maybe it is the solution of my problem but I don’t know how to change it in the configuration in code composer studio.

thank you for your input,

best regards

.

  • 0
    TI__Guru**** 173310 points

    It sounds like you are selecting a UART Connection for the CCS debug connection. Are you looking to debug over UART? For the MSP432 Launchpad, typically the debug connection in the target configuration file should be set to the XDS110 USB Debug Probe. 

    Open the .ccxml file that is part of your project and check what is set for the connection.  Make sure that you have not added a Uart Communication.

  • 0 in reply to AartiG
    Prodigy 40 points

    This was exactly my problem and I didn't know how to fix it with the .ccmxl file.

    It's now working, thank you !


    Best regards.