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Spurious Interrupt Handler

Posted by Eduardo Goncalves on March 20, 2009
I'm using FreeRTOS with IAR 5.20 on an AT91SAM7A3 processor.

I left my test program running through the night and by morning I've realised that it was stuck in the Spurious Interrupt Handler.

The code that I have as defined in Cstartup.s is as follows:

AT91F_Spurious_handler
b AT91F_Spurious_handler

Could you state any reason for this behaviour?
What would be the recommended handler? Just perform a EOI and return?

thanks

RE: Spurious Interrupt Handler

Posted by Dave on March 20, 2009
Spurious interrupts are a feature of ARM7 devices with a separate interrupt controller. I normally just clear and return.

RE: Spurious Interrupt Handler

Posted by Eduardo Goncalves on March 20, 2009
is there any defined code that I could use from FreeRTOS web site to deal with spurious interrupts in the ARM7?

thanks


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