• Locked Locked
  • Replies 9 replies
  • Subscribers 119 subscribers
  • Views 5186 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

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,

    Is that vector address will be different for IRQS[0] compared to nIRQ?

    If so what is logic to derive vector address for IRQS[0].. IRQS[n]?

    For nIRQ as suggested I am using base address + 0x18

    VecTable
                 LDR  pc, [pc,#0x18]


    Is this same same for all IRQ or different for different IRQS?
Reply
  • Note: This was originally posted on 4th September 2012 at http://forums.arm.com

    ttfn,

    Is that vector address will be different for IRQS[0] compared to nIRQ?

    If so what is logic to derive vector address for IRQS[0].. IRQS[n]?

    For nIRQ as suggested I am using base address + 0x18

    VecTable
                 LDR  pc, [pc,#0x18]


    Is this same same for all IRQ or different for different IRQS?
Children
No data