[SOLVED] SystemView Integration with uCos III V3.03.01, RTT block not found

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  • [SOLVED] SystemView Integration with uCos III V3.03.01, RTT block not found

    Hello all,

    I am using Version V3.03.01 uCos_III within a LPC2925 ARM9 processor.
    The debugging pod is a J-link base version 9.2. I used the

    sample code for uCos_III from your website. I have added the code to the build.



    • I check within RAM memory and
      found "SEGGER RTT" string marking the being of the RTT control block at a
      memory location of 0x8000222c. SystemView should be able to find the
      control block, but doesn't
    Sometimes I get " Bad JTAG
    communications write to IR: Expected 0x1, got 0x0 Trap Command : 2 @ off
    0x9". Other times I just get RTT block not found. I am not sure how to
    proceed from here.

    I have read the manual several times, but I still can't seem to get
    communication between my version of uCos_III and SystemView. I know the
    later version of uCos III release in 2016 has already integrated

    SystemView in their cod base, but I am using a 2012 release.



    Can you give me more informaiton on how the communicaiton flow between
    the SystemView Host program an the target? From what I understand,
    SystemView first looks for the string "SEGGER RTT" to find the

    control block. What does SystemView do next?
    Files
    • error.bmp

      (240.14 kB, downloaded 231 times, last: )

    The post was edited 2 times, last by edavis@rexa.com ().

  • Hello Earl,

    System View continuous recording is not possible on ARM9 cores as RTT is used for that.
    So you are limited to single shot recording or post mortem mode with that device.
    More information can be found on the SystemView website and the user manual.

    Best regards,
    Nino
    Please read the forum rules before posting: Forum Rules

    Keep in mind, this is not a support forum. Its main purpose is user to user interaction.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support contact us per e-mail.
    Alternatively our support ticketing system can be used as well: segger.com/ticket/
  • Hello Earl,

    Quick follow up question.
    Is there a particular reason that you are using uCos?
    Alternatively we suggest using our own embedded OS called embOS: segger.com/products/rtos/embos/

    Would that be of interest of you?
    The benefit would be that all our software and hardware tools are optimized to work perfectly with embOS so it would make sense to take a look if you already are using several of our products.

    Best regards,
    Nino
    Please read the forum rules before posting: Forum Rules

    Keep in mind, this is not a support forum. Its main purpose is user to user interaction.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support contact us per e-mail.
    Alternatively our support ticketing system can be used as well: segger.com/ticket/