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Disable FIQ on TMS570LS3137

Richard Burke
Expert 1910 points

Other Parts Discussed in Thread: HALCOGEN

Hello,

I notice that Halcogen is generating code for a function called _disable_FIQ_interrupt_. I know this was not possible on the TMS570LS10x family. Is it now possible on the TMS570LS21x/31x family?

Also a very minor point; the function defintion for _disable_IRQ_interrupt_ says "Disable FIQ Interrupt".

Thanks,

Richard

  • 0
    TI__Mastermind 22375 points

    Richard,

    On TMS570LS21x/31x family the FIQ are used as NMI.

    Out of reset, both IRQ and FIQ are disabled (I and F bits set in CPSR)
    Once FIQ are enabled (Clear F bit in CPSR) it is no more possible to disable it anymore.

    It is there in Halcogen for legacy reasons. Using this function has no effect on our Hercules family.

    Thanks and Regards,

    Jean-Marc