lpc17_interruptions.h File Reference

Interruptions control. More...

#include "core_cm3.h"

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Macros
#define	irq_set_priority(irq, priority)
	Set interruption priority.
#define	irq_enable(irq)
	Enable interruption.
#define	irq_disable(irq)
	Disable interruption.
#define	irq_clear_pending(irq)
	Clear Pending Interrupt.
#define	irq_set_pending(irq)
	Set Pending Interrupt.
#define	irq_get_active(irq)
	Get Active Interrupt.

Detailed Description

Interruptions control.

Author

Henrique Silva henri.nosp@m.que..nosp@m.silva.nosp@m.@lnl.nosp@m.s.br, LNLS

Macro Definition Documentation

irq_clear_pending

#define irq_clear_pending

(

irq

)

Value:

NVIC_ClearPendingIRQ( irq )

Clear Pending Interrupt.

The function clears the pending bit of an external interrupt.

Parameters

[in]

irq

External interrupt number. Value cannot be negative.

irq_disable

#define irq_disable

(

irq

)

Value:

NVIC_DisableIRQ( irq )

Disable interruption.

Parameters

[in]

irq

Interrupt number

irq_enable

#define irq_enable

(

irq

)

Value:

NVIC_EnableIRQ( irq )

Enable interruption.

Parameters

[in]

irq

Interrupt number

irq_get_active

#define irq_get_active

(

irq

)

Value:

NVIC_GetActive( irq )

Get Active Interrupt.

The function reads the interruption status register and returns the active bit.

Parameters

[in]

irq

Interrupt number.

Returns

0 Interrupt status is not active.

1 Interrupt status is active.

irq_set_pending

#define irq_set_pending

(

irq

)

Value:

NVIC_SetPendingIRQ( irq )

Set Pending Interrupt.

The function sets the pending bit of an external interrupt.

Parameters

[in]

irq

External interrupt number. Value cannot be negative.

irq_set_priority

#define irq_set_priority	(		irq,
			priority )

Value:

NVIC_SetPriority( irq, priority )

Set interruption priority.

Parameters

[in]	irq	Interrupt number
[in]	priority	Priority level