Hi,
The main reason for using FIQ is that,
In Hardware, The external interrupt pin is connected to FIQ pin and
also we want to get the interrupt within few ms.
I succeed by handling as GPIO Interrupt. But, While handling as
FIQ,there is some stack overwrite issue.
One more question is that, Whether I can redirect the FIQ to a simple C
routine and return to the User mode without more complexity.
Thanks a lot for Your suggestion in handling FIQ.
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Regards,
Mervin J,
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