Alt_vic_sw_interrupt_set() – Altera Embedded Peripherals IP User Manual
Page 283
• alt_ic_isr_register ()
• alt_ic_irq_enable()
• alt_ic_irq_disable()
• alt_ic_irq_enabled()
These functions write to the register map to change the setting or read from the register map to check
the status of the VIC component thru a memory-mapped address.
For detailed descriptions of these functions, refer to the to the
Nios
II Software Developer’s Handbook.
The table below lists the API functions specific to the VIC core and briefly describes each. Details of
each function follow the table.
Table 28-12: Function List
Name
Description
alt_vic_sw_interrupt_set()
Sets the corresponding bit in the
SW_
INTERRUPT
register to enable a given
interrupt via software.
alt_vic_sw_interrupt_clear()
Clears the corresponding bit in the
SW_
INTERRUPT
register to disable a given
interrupt via software.
alt_vic_sw_interrupt_
status()
Reads the status of the
SW_INTERRUPT
register for a given interrupt.
alt_vic_irq_set_level()
Sets the interrupt level for a given
interrupt.
alt_vic_sw_interrupt_set()
Prototype:
int alt_vic_sw_interrupt_set(alt_u32 ic_id, alt_u32 irq)
Thread-safe: No
Available
from ISR:
No
Include:
altera_vic_irq.h, altera_vic_regs.h
Parameters: ic_id—the interrupt controller identification number as
defined in
system.h
irq—the interrupt value as defined in
system.h
Returns:
Returns zero if successful; otherwise non-zero for one or
more of the following reasons:
The value in ic_id is invalid
The value in irq is invalid
Description: Triggers a single software interrupt
28-14
alt_vic_sw_interrupt_set()
UG-01085
2014.24.07
Altera Corporation
Vectored Interrupt Controller Core