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Assertion of IRQS is not causing calling of ISR

Lokesh Kumar
Note: This was originally posted on 4th September 2012 at http://forums.arm.com

Hi,

With my current flow, when I am asserting legacy nIRQ I am able to jump to ISR, but not when asserting IRQS[0].
I have enabled interrupts as below
[size=2]CPSIE   ifa, #18

and configured [size=2]Interrupt Security ([/size][/size][size=2][size=2]ICDISR), [size=2][/size][/size][/size][size=2][size=2][size=2][size=2]Interrupt Edge Trigger Config ([/size]ICDIF),[size=2]Interrupt Priority (ICDIPR)[/size][/size][/size][/size],[size=2]Interrupt Target Processor (ICDIPTR),[size=2]Interrupt Enable (ICDISER),[size=2]Interrupt Priority Mask (ICCPMR),[size=2]Interrupt Binary Point (ICCBPR),[size=2]Interface Control Register (ICCICR),[size=2]Distributor Control Register (ICDDCR)

Am I missing something?
Is something separate need to be done, when using IRQS interrupts?

Thanks
Lokesh
[/size][/size][/size][/size][/size][/size]
Parents
  • Note: This was originally posted on 4th September 2012 at http://forums.arm.com

    ttfn,

    I don't these registers in latest spec, they are removed
    DDI0407H_cortex_a9_mpcore_r4p0_trm.pdf

    As per programming part there should be same set of programming of registers mentioned above for both nIRQ and IRQS.
    Since for nIRQ ISR is getting called, but not in the case of IRQS?

    Is there any difference in the way of programming in nIRQ and IRQS?

    If you need I can share these registers programming code.

    Thanks
    Lokesh
Reply
  • Note: This was originally posted on 4th September 2012 at http://forums.arm.com

    ttfn,

    I don't these registers in latest spec, they are removed
    DDI0407H_cortex_a9_mpcore_r4p0_trm.pdf

    As per programming part there should be same set of programming of registers mentioned above for both nIRQ and IRQS.
    Since for nIRQ ISR is getting called, but not in the case of IRQS?

    Is there any difference in the way of programming in nIRQ and IRQS?

    If you need I can share these registers programming code.

    Thanks
    Lokesh
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