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isr_* functions on RTX with peripheral timers

Chiong Ching Lai

Hi there,

Referring to this thread When does RTX (re)evaluate which thread to run next?, does the answer provided on the thread also applies if I have a peripheral timer (e.g. RITIMER) as system tick for RTX running on M0 core?

Thank you.

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  • 0 Arm Employee Badge

    Hi,
    I've not tried it since my ARM7 and ARM9 days but yes, it should function the same. The SysTick Timer in Cortex-M systems is just a convenient timer to use for an RTOS. We do accept other peripheral timers too.

    The following link describes the procedure when using other timers...
    RL-ARM User's Guide: Alternate Tick Timer

    I hope this helps and sorry I hadn't replied sooner. I didn't see this message until a colleague pointed it out to me.

    Thanks,

    Ken

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  • 0 Arm Employee Badge

    Hi,
    I've not tried it since my ARM7 and ARM9 days but yes, it should function the same. The SysTick Timer in Cortex-M systems is just a convenient timer to use for an RTOS. We do accept other peripheral timers too.

    The following link describes the procedure when using other timers...
    RL-ARM User's Guide: Alternate Tick Timer

    I hope this helps and sorry I hadn't replied sooner. I didn't see this message until a colleague pointed it out to me.

    Thanks,

    Ken

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