On Time RTOS-32 Documentation

RTTarget-32 Programming Manual

RTTarget-32 Reference Manual

RTTarget-32 Configuration

Interrupt Handling

Function RTSaveVector

Function RTRestoreVector

Function RTSetIntVector

Function RTSetTrapVector

Function RTEnableIRQ

Function RTDisableIRQ

Function RTIRQIsMasked

Function RTIRQEnd

Function RTInstallSharedIRQHandlerEx

Function RTInstallSharedIRQHandler

Function RTRemoveSharedIRQHandlerEx

Function RTRemoveSharedIRQHandler

Function RTDisableInterrupts

Function RTEnableInterrupts

Function RTSaveAndDisableInterrupts

Function RTRestoreInterrupts

Function RTInstallISR

System Functions

Program Loading

Memory Mapping and Management

Real-Time Clock and CMOS RAM

Mouse and Touch Screen Driver

Parallel Port Printer

Serial Port I/O

Plug-and-Play BIOS

PC Cards (PCMCIA)

MetaWINDOW Initialization

Run-Time System Support

System Management BIOS (SMBIOS)

Advanced Programmable Interrupt Controller (APIC)

Multiprocessor Management

Advanced Configuration and Power Interface (ACPI) Tables

Extended RAM Management

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Function RTDisableIRQ

RTDisableIRQ instructs the interrupt controller (i8259 or IOAPIC, if in APIC mode) not to pass interrupts for a specific IRQ to the CPU:

void RTDisableIRQ(int IRQ);

Parameters

IRQ

Must be in the range 0 .. 31.

RTTarget-32 disables all IRQs except 0, 1, and 2 at boot time. Please note that there is no IRQ 2 in PIC mode. Hardware that claims to generate IRQ 2 actually uses IRQ 9.

Function RTEnableIRQ

Down Function RTIRQIsMasked