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Honored Contributor
Honored Contributorinterupt disabled in ISR
In the Nios II Software developer's handbook: "the HAL system library disables interupts when it dispatches an ISR". I've examine the file alt_irq_entry.S and alt_irq_handler.c but no pr...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- originally posted by soin@Sep 13 2006, 02:21 AM which are the instruction that save registers and clears pie bit?
probably i miss something.
thank u
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--- Quote End --- As David Cai wrote this is automatically done by the processor, not the software. If you want nested interrupts you have to explicitly re-enable interrupts in your ISR.
