ARM CORTEX-M3 SWO (ITM) with JLINK-PRO

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  • ARM CORTEX-M3 SWO (ITM) with JLINK-PRO

    Hi,

    I am trying to read data sent from the target (STM32F103RBT6@72Mhz)
    to JLink-Pro using the SWO pin with no success.
    I am using the latest firmware version:
    Firmware: J-Link ARM-Pro V3.x compiled Jan 31 2011 18:46:52
    Hardware: V3.00

    To write the data I used the code posted in this forum previously
    (thread #608 ).
    Using an oscilloscope I can see at pin TMS/SWO the bytes being sent
    in UART format with a frequency of ~6000Khz.

    In JlinkCommander I selected the SWD interface and started the
    reading:
    >si 1
    >SWOStart
    >SWORead
    0 bytes read (0 bytes in host buffer)


    Any sugestions ?
    regards.