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Altera_Forum
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15 years ago

Code to determine interrupt context?

Is it possible for a re-entrant C function to determine in which interrupt context it is running on a NIOSII processor? i.e. if it can be called from both the idle loop and an interrupt handler, can ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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So the NIOSII processor doesn't have the equivalent of an "interrupt level" register that it uses to decide whether to accept higher priority interrupts, in the way that many lower end processors have?

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Usually, int is working with interrupt disable. And idle task is working with interrupt enable. But checking stack pointer will be much better solution.