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Hi Joannes, thanks for the reply. The call to SEGGER_SYSVIEW_Start() did not help. However, now that you pointed me in the right direction I forced a context switch with taskYIELD() right at the beginning of my SystemInit taks and this seems to do the trick. Aldo

Hi Joannes, to recap, I have a couple of issues which to me appear as real issues with the tool 1. configuration of SEGGER_SYSVIEW_ID_BASE. I do not think this is working properly out of the box for FreeRTOS. This seems to fix it for me, but I don't know if I am missing any side effect Difference-File (14 lines) 2. Incorrect display of active task in some conditions (see Startup2.7z). I can be sure in this example that the SystemInit task is running and Idle is shown. I would appreciate your com…

Quote from sysopch: “Hi Joannes, thanks for answering. I can't see my post, so I am trying again. Sorry if you get it twice. [...] The attached "Startup2" trace show a typical system startup in which you can see the SystemInit task created @8.925us, then the scheduler is started and this task is executed to perform initialization (involving reads from SD which cause ISR #134 to occur) and starts the rest of the tasks @1s.193461us. Anyways the SystemInit task is never shown as active. It looks li…

I forgot to say that it looks to me that customizing SEGGER_SYSVIEW_ID_BASE is not working properly. In C Source Code (1 line) the first call to C Source Code (1 line) uses the configured value, whereas the call to C Source Code (1 line) overwrites it with the default 0x10000000. Am I missing something here?

Hi Joannes, thanks for answering. I can't see my post, so I am trying again. Sorry if you get it twice. I spent some more time investigating and have some update. Quote from SEGGER - Johannes: “Hi, Thanks for the explanation. Would it be possible to get a recording of the behavior you described? That would allow a better analysis of what might go wrong. ” The attached "Startup2" trace show a typical system startup in which you can see the SystemInit task created @8.925us, then the scheduler is s…

Hi all, I am very new to SystemView (but I did use similar tools in the past). I just started to use it on a complex project I am working on (about 15 user tasks) and there are some things I cannot understand. The setup is as follows: - CPU:Cypress (former Spansion) S6E2CC8J0A, with 32MB external SDRAM - RTOS: FreeRTOS 9.0.0 - FreeRTOS heap: in SRAM section@0x20038000 - I set SEGGER_SYSVIEW_ID_BASE to this address - RTT Control Block in data section - J-Link SWD connection 8MHz Connection issues…