[SOLVED] RTT control block missing

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  • [SOLVED] RTT control block missing

    Hi,
    I have integrated Systemview on my target with ARM9 CPU SAM9x60. As this is ARM9 it does not support RTT and hence I am trying for singleshot. My interface to board is Jlink. When I start SystemView on my PC and select Target->Start Recording, it shows be messages as in attachment1.

    When I click on OK, the other message Recorder starting remains for some time and green progress runs quickly and message box closes. After that I select Target->Read Recorded Data and it gives me message1 as in attachment 2.

    Click on OK and all windows remains blank. Can anyone please suggest what is wrong here?

    Thanks,
    Pradeep

  • Hello,

    in case your target does not support RTT, you need to save the data recording from the target to a file on the host system.
    This is explained in the manual here: segger.com/doc/UM08027_SystemView.html#Single_shot_recording

    In short, following steps are required:
    - Halt the application with the debugger when either the recording is done or the buffer is full
    - Get the RTT buffer address and number of bytes used (usually _SEGGER_RTT.aUp[1].pBuffer and _SEGGER_RTT.aUp[1].WrOff)
    - Save the used bytes from the buffer to a *.SVDat or *.bin file
    - Open the file in Ozone using File -> Load Data

    Best regards,
    Sebastian
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