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Altera_Forum's avatar
Altera_Forum
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16 years ago

break in HAL?

Using NIOSIIIDE 9.1. while running in debug, I am intermittently getting a break in the HAL function alt_irq_entry(). I am not sure what is causing this to occur. I would like to trace it, but I ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

The break in alt_irq_entry is commonly hit when an interrupt is received from hardware that you've yet to register an interrupt handler for...otherwise known as a spurious interrupt. The cause for such a thing is generally system specific.

The break can also be hit on an illegal instruction or something along these lines...read the code to see what conditions will bring you here.

Cheers and good luck!

-slacker