NVIC Functions

Functions that manage interrupts and exceptions via the NVIC. More...

Collaboration diagram for NVIC Functions:

Modules
	SysTick Functions
	Functions that configure the System.
__STATIC_INLINE void	NVIC_EnableIRQ (IRQn_Type IRQn)
	Enable External Interrupt. More...
__STATIC_INLINE void	NVIC_DisableIRQ (IRQn_Type IRQn)
	Disable External Interrupt. More...
__STATIC_INLINE uint32_t	NVIC_GetPendingIRQ (IRQn_Type IRQn)
	Get Pending Interrupt. More...
__STATIC_INLINE void	NVIC_SetPendingIRQ (IRQn_Type IRQn)
	Set Pending Interrupt. More...
__STATIC_INLINE void	NVIC_ClearPendingIRQ (IRQn_Type IRQn)
	Clear Pending Interrupt. More...
__STATIC_INLINE void	NVIC_SetPriority (IRQn_Type IRQn, uint32_t priority)
	Set Interrupt Priority. More...
__STATIC_INLINE uint32_t	NVIC_GetPriority (IRQn_Type IRQn)
	Get Interrupt Priority. More...
__STATIC_INLINE void	NVIC_SystemReset (void)
	System Reset. More...
#define	_BIT_SHIFT(IRQn)   ( (((uint32_t)(IRQn) ) & 0x03) * 8 )
#define	_SHP_IDX(IRQn)   ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )
#define	_IP_IDX(IRQn)   ( ((uint32_t)(IRQn) >> 2) )

Detailed Description

Functions that manage interrupts and exceptions via the NVIC.

Macro Definition Documentation

_BIT_SHIFT

#define _BIT_SHIFT

(

IRQn

)

( (((uint32_t)(IRQn) ) & 0x03) * 8 )

Definition at line 489 of file core_cm0.h.

_IP_IDX

#define _IP_IDX

(

IRQn

)

( ((uint32_t)(IRQn) >> 2) )

Definition at line 491 of file core_cm0.h.

_SHP_IDX

#define _SHP_IDX

(

IRQn

)

( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )

Definition at line 490 of file core_cm0.h.

Function Documentation

NVIC_ClearPendingIRQ()

__STATIC_INLINE void NVIC_ClearPendingIRQ

(

IRQn_Type

IRQn

)

Clear Pending Interrupt.

The function clears the pending bit of an external interrupt.

Parameters

[in]

IRQn

External interrupt number. Value cannot be negative.

Definition at line 552 of file core_cm0.h.

NVIC_DisableIRQ()

__STATIC_INLINE void NVIC_DisableIRQ

(

IRQn_Type

IRQn

)

Disable External Interrupt.

The function disables a device-specific interrupt in the NVIC interrupt controller.

Parameters

[in]

IRQn

External interrupt number. Value cannot be negative.

Definition at line 512 of file core_cm0.h.

NVIC_EnableIRQ()

__STATIC_INLINE void NVIC_EnableIRQ

(

IRQn_Type

IRQn

)

Enable External Interrupt.

The function enables a device-specific interrupt in the NVIC interrupt controller.

Parameters

[in]

IRQn

External interrupt number. Value cannot be negative.

Definition at line 500 of file core_cm0.h.

NVIC_GetPendingIRQ()

__STATIC_INLINE uint32_t NVIC_GetPendingIRQ

(

IRQn_Type

IRQn

)

Get Pending Interrupt.

The function reads the pending register in the NVIC and returns the pending bit for the specified interrupt.

Parameters

[in]

IRQn

Interrupt number.

Returns

0 Interrupt status is not pending.

1 Interrupt status is pending.

Definition at line 528 of file core_cm0.h.

NVIC_GetPriority()

__STATIC_INLINE uint32_t NVIC_GetPriority

(

IRQn_Type

IRQn

)

Get Interrupt Priority.

The function reads the priority of an interrupt. The interrupt number can be positive to specify an external (device specific) interrupt, or negative to specify an internal (core) interrupt.

Parameters

[in]

IRQn

Interrupt number.

Returns

Interrupt Priority. Value is aligned automatically to the implemented priority bits of the microcontroller.

Definition at line 589 of file core_cm0.h.

NVIC_SetPendingIRQ()

__STATIC_INLINE void NVIC_SetPendingIRQ

(

IRQn_Type

IRQn

)

Set Pending Interrupt.

The function sets the pending bit of an external interrupt.

Parameters

[in]

IRQn

Interrupt number. Value cannot be negative.

Definition at line 540 of file core_cm0.h.

NVIC_SetPriority()

__STATIC_INLINE void NVIC_SetPriority	(	IRQn_Type	IRQn,
		uint32_t	priority
	)

Set Interrupt Priority.

The function sets the priority of an interrupt.

Note

The priority cannot be set for every core interrupt.

Parameters

[in]	IRQn	Interrupt number.
[in]	priority	Priority to set.

Definition at line 567 of file core_cm0.h.

NVIC_SystemReset()

__STATIC_INLINE void NVIC_SystemReset

(

void

)

System Reset.

The function initiates a system reset request to reset the MCU.

Definition at line 603 of file core_cm0.h.