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AT91SAM7S: nested interrupt function

Peter Brandon

Hi,

I want to add a function handling nested interrupts for the controller. Could you tell me the right position to add this function?

startup-file:

Undef_Handler   B       Undef_Handler
SWI_Handler     B       SWI_Handler
PAbt_Handler    B       PAbt_Handler
DAbt_Handler    B       DAbt_Handler
;IRQ_Handler     B       IRQ_Handler
IRQ_Handler     B       irq_fnct
FIQ_Handler     B       FIQ_Handler

irq_fnct

   //do some stuff - nested interrupt

I've add one breakpoint to the irq_fnct but it seems that the programm will not reach this part if a interupt occur.

I'm working with the atmel controller AT91SAM7S.

best regards
Peter

Parents
  • 0 in reply to Peter Brandon

    The way to set a lot of global variables for each event (e.g deleting arp cache) and poll them in the main routine, sounds a little bit unefficient to me.

    So you're betting your project on a known bitter, hard-to-do cure, against a vaguely perceived disease.

    In other words, your intended cure is causing worse problems than you have right now. So why pursue it, ignoring the advice you've come here to ask for?

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  • 0 in reply to Peter Brandon

    The way to set a lot of global variables for each event (e.g deleting arp cache) and poll them in the main routine, sounds a little bit unefficient to me.

    So you're betting your project on a known bitter, hard-to-do cure, against a vaguely perceived disease.

    In other words, your intended cure is causing worse problems than you have right now. So why pursue it, ignoring the advice you've come here to ask for?

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