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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
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.
Wouldn't you merely need one global variable, which tells the main routine "Do all the stuff that previously took place in the timer tick routine?"