STM32F745VG, Missing SystemView FreeRTOS Events, Recording Error

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    • STM32F745VG, Missing SystemView FreeRTOS Events, Recording Error

      New

      Issue description:
      Nearly identical to forum.segger.com/index.php/Thread/4047-Help-with-SystemView/
      (I checked based on the suggestion in that thread -- my application is still running, so I think the root issue must be something else)

      Hardware:
      STM32F745VG processor, j-link Ultra+

      PC:
      Linux, rt-preempt kernel, Lubuntu

      When I use SystemView after applying the FreeRTOS v10 patch, then if I call `SEGGER_SYSVIEW_Conf` only, it seems the RTT is detected (and/or I can manually enter the address from map file), but there are no events logged at all.

      If I also call `SEGGER_SYSVIEW_Start` after `_Conf` then I see only a few events with timestamp 0:00:00, identical to the forum issue linked above, and with the same error when I try to stop recording or restart recording again after the error:
      "Cannot send command to target."

      From some troubleshooting, I think RTT is detected correctly because if I manually enter a value that is incorrect, it does say "RTT control block not found". So auto-detection and manual entry with correct address does work (but, again, no RTOS events and definitely no continuous recording data)
    • New

      Hello,

      Thank you for your inquiry.
      Such an issue is not known to us.
      Are you using custom hardware or an eval board?
      If the latter which one?
      Could you provide a sample project for reproduction that shows the described behaviour?

      Best regards,
      Nino
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