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_enable_interrupts and _disable_interrupts SYSBIOS C6657

Harikrishna Vuppaladhadiam
Expert 1855 points

_enable_interrupts and  _disable_interrupts

Do these functions disable threads, and others also? Or only interrupts? SWI, HWIs? 

Hari

  • 0
    TI__Mastermind 32475 points

    _enable_interrupts/_disable_interrupts only enable/disable interrupts.

    The Task schedule and the Swi scheduler are not disabled.
    However, I should point out that typically a thread (Task) is enabled via a Semaphore_post from a Hwi or Swi,
    and Swis are typically enabled via a Swi_post from a Hwi so in that sense, when you disable Hwis you are disabling Swis and Tasks.

    If you happen to do a Semphore_post from a Task and that unblocked a higher ready Task, it will unblock the Task to run.

    Judah