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PROCESSOR-SDK-J784S4: PROCESSOR-SDK-J784S4

Abdelrhman Dawoud
Prodigy 180 points
Part Number: PROCESSOR-SDK-J784S4

Tool/software:

Can I call SDL APIs from a different main domain instead of the Safety Island? I want to run the Digital Windowed Watchdog on another core (e.g., Mcu2_0). Is that possible? I noticed RTI instances in the main domain—could those be used for this?

  • +1
    TI__Mastermind 42046 points

    Hi, 

    General expectation is that the safety loop S/W will run on MCU R5 in the MCU domain. S/W running in either domain, in general, has access to resources in the others domains, provided that domains are up and running, and subject to firewalls etc. The SDL code when run on the MCU R5, would still have access to RTI modules in the Main domain, provided that the Main domain is initialized.

    Regards,

    Josiitaa

  • 0 in reply to Josiitaa RL
    Prodigy 180 points

    To clarify further:
    My intention is to monitor safety-critical functions across multiple cores, not just the MCU R5. I would like each of these cores to have the ability to actively participate in feeding their respective watchdogs, with each core reporting its own health status directly to its internal watchdog.

    Is this approach feasible for the R5F cores?


    For a72 cores and c7x cores i will implement a cross core communication to report the health status to mcu safety .   

  • 0 in reply to Abdelrhman Dawoud
    TI__Mastermind 42046 points

    Hi, 

    Please refer to the SDL RTI example - 4.6. RTI : RTI/WWDT Windowed Watchdog Timer and port it to the main RTI instances.

    Regards,

    Josiitaa