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Effect of optimization levels while using freertos on cortex-R52

Jahnavi_Guvvala

Hi everyone,

When I'm using FreeRTOS  with cortex R52, in optimization level O0, it works fine. context swithing is also fine.

But when i use optimization level O3, there are so many issues and they are very random. My question is ..whether there is a problem with FreeRTOS in optimization level O3? 

Any small suggestion will mean so much to me.

Thanks & Regards,

Jahnavi Guvvala.

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  • +1
    Jahnavi_Guvvala said:
    Any small suggestion will mean so much

    Almost always, if increasing optimisation breaks your code, that is due to flaws in your code - usually, relying upon things which are not guaranteed by the language.

    A common one is omitting to use volatile where it's necessary.

    Try googling "optimisation breaks my code", or similar ...

    Jahnavi_Guvvala said:
    whether there is a problem with FreeRTOS in optimization level O3? 

    You would have to ask the FreeRTOS people if there are any known specific issues - but it's rather unlikely.

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  • +1
    Jahnavi_Guvvala said:
    Any small suggestion will mean so much

    Almost always, if increasing optimisation breaks your code, that is due to flaws in your code - usually, relying upon things which are not guaranteed by the language.

    A common one is omitting to use volatile where it's necessary.

    Try googling "optimisation breaks my code", or similar ...

    Jahnavi_Guvvala said:
    whether there is a problem with FreeRTOS in optimization level O3? 

    You would have to ask the FreeRTOS people if there are any known specific issues - but it's rather unlikely.

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