Visible to Intel only — GUID: zvh1642823871663
Ixiasoft
Visible to Intel only — GUID: zvh1642823871663
Ixiasoft
8.2.3.1. Methods the HAL Uses to Register the ISR
The HAL registers the ISR by storing the function pointer (isr), in a lookup table.
The return code from alt_ic_isr_register() is zero if the function succeeded, and nonzero if it failed. If the HAL registers your ISR successfully, the associated Nios® V processor hardware interrupt (as defined by irq) is enabled on return from alt_ic_isr_register(). Each Nios® V processor hardware interrupt can register a single ISR only, and changing ISR on run-time is not supported.
For more information about alt_ic_isr_register(), refer to the HAL API Reference chapter.