EXTI

EXTI driver modules. More...

Collaboration diagram for EXTI:

Modules
	EXTI_Exported_Constants
	EXTI_Private_Functions

Data Structures
struct	EXTI_InitTypeDef
	EXTI Init Structure definition. More...

Macros
#define	IS_EXTI_MODE(MODE)   (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event))
#define	IS_EXTI_TRIGGER(TRIGGER)
#define	EXTI_LINENONE   ((uint32_t)0x00000) /* No interrupt selected */

Enumerations
enum	EXTIMode_TypeDef { EXTI_Mode_Interrupt = 0x00, EXTI_Mode_Event = 0x04 }
	EXTI mode enumeration.
enum	EXTITrigger_TypeDef { EXTI_Trigger_Rising = 0x08, EXTI_Trigger_Falling = 0x0C, EXTI_Trigger_Rising_Falling = 0x10 }
	EXTI Trigger enumeration.

Functions
void	EXTI_DeInit (void)
	Deinitializes the EXTI peripheral registers to their default reset values. More...
void	EXTI_Init (EXTI_InitTypeDef *EXTI_InitStruct)
	Initializes the EXTI peripheral according to the specified parameters in the EXTI_InitStruct. More...
void	EXTI_StructInit (EXTI_InitTypeDef *EXTI_InitStruct)
	Fills each EXTI_InitStruct member with its reset value. More...
void	EXTI_GenerateSWInterrupt (uint32_t EXTI_Line)
	Generates a Software interrupt on selected EXTI line. More...
FlagStatus	EXTI_GetFlagStatus (uint32_t EXTI_Line)
	Checks whether the specified EXTI line flag is set or not. More...
void	EXTI_ClearFlag (uint32_t EXTI_Line)
	Clears the EXTI's line pending flags. More...
ITStatus	EXTI_GetITStatus (uint32_t EXTI_Line)
	Checks whether the specified EXTI line is asserted or not. More...
void	EXTI_ClearITPendingBit (uint32_t EXTI_Line)
	Clears the EXTI's line pending bits. More...

Detailed Description

EXTI driver modules.

Macro Definition Documentation

#define IS_EXTI_TRIGGER

(

TRIGGER

)

Value:

(((TRIGGER) == EXTI_Trigger_Rising) || \
                                  ((TRIGGER) == EXTI_Trigger_Falling) || \
                                  ((TRIGGER) == EXTI_Trigger_Rising_Falling))

Definition at line 73 of file stm32f4xx_exti.h.

Function Documentation

void EXTI_ClearFlag

(

uint32_t

EXTI_Line

)

Clears the EXTI's line pending flags.

Parameters

EXTI_Line

specifies the EXTI lines flags to clear. This parameter can be any combination of EXTI_Linex where x can be (0..22)

Return values

None

Definition at line 250 of file stm32f4xx_exti.c.

void EXTI_ClearITPendingBit

(

uint32_t

EXTI_Line

)

Clears the EXTI's line pending bits.

Parameters

EXTI_Line

specifies the EXTI lines to clear. This parameter can be any combination of EXTI_Linex where x can be (0..22)

Return values

None

Definition at line 288 of file stm32f4xx_exti.c.

void EXTI_DeInit

(

void

)

Deinitializes the EXTI peripheral registers to their default reset values.

Parameters

None

Return values

None

Definition at line 110 of file stm32f4xx_exti.c.

void EXTI_GenerateSWInterrupt

(

uint32_t

EXTI_Line

)

Generates a Software interrupt on selected EXTI line.

Parameters

EXTI_Line

specifies the EXTI line on which the software interrupt will be generated. This parameter can be any combination of EXTI_Linex where x can be (0..22)

Return values

None

Definition at line 197 of file stm32f4xx_exti.c.

FlagStatus EXTI_GetFlagStatus

(

uint32_t

EXTI_Line

)

Checks whether the specified EXTI line flag is set or not.

Parameters

EXTI_Line

specifies the EXTI line flag to check. This parameter can be EXTI_Linex where x can be(0..22)

Return values

The	new state of EXTI_Line (SET or RESET).

Definition at line 227 of file stm32f4xx_exti.c.

ITStatus EXTI_GetITStatus

(

uint32_t

EXTI_Line

)

Checks whether the specified EXTI line is asserted or not.

Parameters

EXTI_Line

specifies the EXTI line to check. This parameter can be EXTI_Linex where x can be(0..22)

Return values

The	new state of EXTI_Line (SET or RESET).

Definition at line 264 of file stm32f4xx_exti.c.

void EXTI_Init

(

EXTI_InitTypeDef *

EXTI_InitStruct

)

Initializes the EXTI peripheral according to the specified parameters in the EXTI_InitStruct.

Parameters

EXTI_InitStruct

pointer to a EXTI_InitTypeDef structure that contains the configuration information for the EXTI peripheral.

Return values

None

Definition at line 126 of file stm32f4xx_exti.c.

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void EXTI_StructInit

(

EXTI_InitTypeDef *

EXTI_InitStruct

)

Fills each EXTI_InitStruct member with its reset value.

Parameters

EXTI_InitStruct

pointer to a EXTI_InitTypeDef structure which will be initialized.

Return values

None

Definition at line 182 of file stm32f4xx_exti.c.