EXTI

EXTI driver modules. More...

Modules
	EXTI_Private_Functions
	EXTI_Exported_Types
	EXTI_Exported_Macros
Functions
void	EXTI_ClearITPendingBit (EXTI_IT_TypeDef EXTI_IT)
	Clears the specified interrupt pending bit.
void	EXTI_DeInit (void)
	Deinitializes the EXTI registers to their default reset value.
ITStatus	EXTI_GetITStatus (EXTI_IT_TypeDef EXTI_IT)
	Gets the external interrupt status.
EXTI_Trigger_TypeDef	EXTI_GetPinSensitivity (EXTI_Pin_TypeDef EXTI_Pin)
	Gets the external interrupt sensitivity of the selected pin.
EXTI_Trigger_TypeDef	EXTI_GetPortSensitivity (EXTI_Port_TypeDef EXTI_Port)
	Gets the external interrupt sensitivity of the selected port.
void	EXTI_SelectPort (EXTI_Port_TypeDef EXTI_Port)
	Selects the port interrupt selection.
void	EXTI_SetHalfPortSelection (EXTI_HalfPort_TypeDef EXTI_HalfPort, FunctionalState NewState)
	Configures the half port interrupt selection.
void	EXTI_SetPinSensitivity (EXTI_Pin_TypeDef EXTI_Pin, EXTI_Trigger_TypeDef EXTI_Trigger)
	Sets the external interrupt sensitivity of the selected pin.
void	EXTI_SetPortSensitivity (EXTI_Port_TypeDef EXTI_Port, EXTI_Trigger_TypeDef EXTI_Trigger)
	Sets the external interrupt sensitivity of the selected port.

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Detailed Description

EXTI driver modules.

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Function Documentation

void EXTI_ClearITPendingBit

(

EXTI_IT_TypeDef

EXTI_IT

)

Clears the specified interrupt pending bit.

Parameters:

EXTI_IT

: Specifies the interrupt to clear This parameter can be one of the following values: EXTI_IT_Pin0: GPIO Pin 0 EXTI_IT_Pin1: GPIO Pin 1 EXTI_IT_Pin2: GPIO Pin 2 EXTI_IT_Pin3: GPIO Pin 3 EXTI_IT_Pin4: GPIO Pin 4 EXTI_IT_Pin5: GPIO Pin 5 EXTI_IT_Pin6: GPIO Pin 6 EXTI_IT_Pin7: GPIO Pin 7 EXTI_IT_PortB: GPIO Port B EXTI_IT_PortD: GPIO Port D EXTI_IT_PortE: GPIO Port E EXTI_IT_PortF: GPIO Port F EXTI_IT_PortG: GPIO Port G EXTI_IT_PortH: GPIO Port H

Return values:

None

Definition at line 518 of file stm8l15x_exti.c.

References EXTI, and IS_EXTI_ITPENDINGBIT.

void EXTI_DeInit

(

void

)

Deinitializes the EXTI registers to their default reset value.

Parameters:

None

Return values:

None

Definition at line 117 of file stm8l15x_exti.c.

References EXTI, EXTI_CONF1_RESET_VALUE, EXTI_CONF2_RESET_VALUE, EXTI_CR1_RESET_VALUE, EXTI_CR2_RESET_VALUE, EXTI_CR3_RESET_VALUE, and EXTI_CR4_RESET_VALUE.

ITStatus EXTI_GetITStatus

(

EXTI_IT_TypeDef

EXTI_IT

)

Gets the external interrupt status.

Parameters:

EXTI_IT

: Specifies the interrupt to read. This parameter can be one of the following values: EXTI_IT_Pin0: GPIO Pin 0 EXTI_IT_Pin1: GPIO Pin 1 EXTI_IT_Pin2: GPIO Pin 2 EXTI_IT_Pin3: GPIO Pin 3 EXTI_IT_Pin4: GPIO Pin 4 EXTI_IT_Pin5: GPIO Pin 5 EXTI_IT_Pin6: GPIO Pin 6 EXTI_IT_Pin7: GPIO Pin 7 EXTI_IT_PortB: GPIO Port B EXTI_IT_PortD: GPIO Port D EXTI_IT_PortE: GPIO Port E EXTI_IT_PortF: GPIO Port F EXTI_IT_PortG: GPIO Port G EXTI_IT_PortH: GPIO Port H

Return values:

The	status of the specified interrupt. This parameter can be a SET or RESET

Definition at line 481 of file stm8l15x_exti.c.

References EXTI, IS_EXTI_ITPENDINGBIT, and RESET.

EXTI_Trigger_TypeDef EXTI_GetPinSensitivity

(

EXTI_Pin_TypeDef

EXTI_Pin

)

Gets the external interrupt sensitivity of the selected pin.

Parameters:

EXTI_Pin

: The pin number to access. This parameter can be one of the following values: EXTI_Pin_0: GPIO Pin 0 EXTI_Pin_1: GPIO Pin 1 EXTI_Pin_2: GPIO Pin 2 EXTI_Pin_3: GPIO Pin 3 EXTI_Pin_4: GPIO Pin 4 EXTI_Pin_5: GPIO Pin 5 EXTI_Pin_6: GPIO Pin 6 EXTI_Pin_7: GPIO Pin 7

Return values:

The	external interrupt sensitivity of the selected port.

Definition at line 370 of file stm8l15x_exti.c.

References EXTI, EXTI_CR1_P0IS, EXTI_CR1_P1IS, EXTI_CR1_P2IS, EXTI_CR1_P3IS, EXTI_CR2_P4IS, EXTI_CR2_P5IS, EXTI_CR2_P6IS, EXTI_CR2_P7IS, EXTI_Pin_0, EXTI_Pin_1, EXTI_Pin_2, EXTI_Pin_3, EXTI_Pin_4, EXTI_Pin_5, EXTI_Pin_6, EXTI_Pin_7, and IS_EXTI_PINNUM.

EXTI_Trigger_TypeDef EXTI_GetPortSensitivity

(

EXTI_Port_TypeDef

EXTI_Port

)

Gets the external interrupt sensitivity of the selected port.

Parameters:

EXTI_Port

: The port number to access. This parameter can be one of the following values: EXTI_Port_B: GPIO Port B EXTI_Port_D: GPIO Port D EXTI_Port_E: GPIO Port E EXTI_Port_F: GPIO Port F EXTI_Port_G: GPIO Port G EXTI_Port_H: GPIO Port H

Return values:

The	external interrupt sensitivity of the selected port.

Definition at line 421 of file stm8l15x_exti.c.

References EXTI, and IS_EXTI_PORT.

void EXTI_SelectPort

(

EXTI_Port_TypeDef

EXTI_Port

)

Selects the port interrupt selection.

Parameters:

EXTI_Port

: The port number to access. This parameter can be one of the following values: EXTI_Port_B: GPIO Port B EXTI_Port_D: GPIO Port D EXTI_Port_E: GPIO Port E EXTI_Port_F: GPIO Port F EXTI_Port_G: GPIO Port G EXTI_Port_H: GPIO Port H

Return values:

None

Definition at line 213 of file stm8l15x_exti.c.

References EXTI, EXTI_CONF1_PFES, EXTI_CONF2_PGBS, EXTI_CONF2_PHDS, EXTI_Port_B, EXTI_Port_D, EXTI_Port_E, EXTI_Port_F, EXTI_Port_G, and IS_EXTI_PORT.

void EXTI_SetHalfPortSelection	(	EXTI_HalfPort_TypeDef	EXTI_HalfPort,
		FunctionalState	NewState
	)

Configures the half port interrupt selection.

Note:

This function should be called once the port sensitivity configured, otherwise it will not have any effect on the port external interrupt.

This function should be called after EXTI_SelectPort() function which selects the port to be used otherwise ports are selected by default

Parameters:

EXTI_HalfPort

: The port part to access (MSB or LSB). This parameter can be one of the following values: EXTI_HalfPort_B_LSB: Interrupt selector PB(3:0) EXTI_HalfPort_B_MSB: Interrupt selector PB(7:4) EXTI_HalfPort_D_LSB: Interrupt selector PD(3:0) EXTI_HalfPort_D_MSB: Interrupt selector PD(7:4) EXTI_HalfPort_E_LSB: Interrupt selector PE(3:0) EXTI_HalfPort_E_MSB: Interrupt selector PE(7:4) EXTI_HalfPort_F_LSB: Interrupt selector PF(3:0) EXTI_HalfPort_F_MSB: Interrupt selector PF(7:4) EXTI_HalfPort_G_LSB: Interrupt selector PG(3:0) EXTI_HalfPort_G_MSB: Interrupt selector PG(7:4) EXTI_HalfPort_H_LSB: Interrupt selector PH(3:0) EXTI_HalfPort_H_MSB: Interrupt selector PH(7:4)

NewState

: The external interrupt new state. This parameter can be: ENABLE or DISABLE.

Return values:

None

Definition at line 274 of file stm8l15x_exti.c.

References DISABLE, EXTI, IS_EXTI_HALFPORT, and IS_FUNCTIONAL_STATE.

void EXTI_SetPinSensitivity	(	EXTI_Pin_TypeDef	EXTI_Pin,
		EXTI_Trigger_TypeDef	EXTI_Trigger
	)

Sets the external interrupt sensitivity of the selected pin.

Note:

Global interrupts must be disabled before calling this function.

The modification of external interrupt sensitivity is only possible when he interrupts are disabled.

The normal behavior is to disable the interrupts before calling this function, and re-enable them after.

Parameters:

EXTI_Pin	: The pin to configure. This parameter can be one of the following values: EXTI_Pin_0: GPIO Pin 0 EXTI_Pin_1: GPIO Pin 1 EXTI_Pin_2: GPIO Pin 2 EXTI_Pin_3: GPIO Pin 3 EXTI_Pin_4: GPIO Pin 4 EXTI_Pin_5: GPIO Pin 5 EXTI_Pin_6: GPIO Pin 6 EXTI_Pin_7: GPIO Pin 7
EXTI_Trigger	: The external interrupt sensitivity value to set. This parameter can be one of the following values: EXTI_Trigger_Falling_Low: Interrupt on Falling edge and Low level EXTI_Trigger_Rising: Interrupt on Rising edge only EXTI_Trigger_Falling: Interrupt on Falling edge only EXTI_Trigger_Rising_Falling: Interrupt on Rising and Falling edges

Return values:

None

Definition at line 154 of file stm8l15x_exti.c.

References EXTI, EXTI_CR1_P0IS, EXTI_CR1_P1IS, EXTI_CR1_P2IS, EXTI_CR1_P3IS, EXTI_CR2_P4IS, EXTI_CR2_P5IS, EXTI_CR2_P6IS, EXTI_CR2_P7IS, EXTI_Pin_0, EXTI_Pin_1, EXTI_Pin_2, EXTI_Pin_3, EXTI_Pin_4, EXTI_Pin_5, EXTI_Pin_6, EXTI_Pin_7, IS_EXTI_PINNUM, and IS_EXTI_TRIGGER.

void EXTI_SetPortSensitivity	(	EXTI_Port_TypeDef	EXTI_Port,
		EXTI_Trigger_TypeDef	EXTI_Trigger
	)

Sets the external interrupt sensitivity of the selected port.

Note:

Global interrupts must be disabled before calling this function.

The modification of external interrupt sensitivity is only possible when the interrupts are disabled.

The normal behavior is to disable the interrupts before calling this function, and re-enable them after.

Parameters:

EXTI_Port	: The port number to access. This parameter can be one of the following values: EXTI_Port_B: GPIO Port B EXTI_Port_D: GPIO Port D EXTI_Port_E: GPIO Port E EXTI_Port_F: GPIO Port F EXTI_Port_G: GPIO Port G EXTI_Port_H: GPIO Port H
EXTI_Trigger	: The external interrupt sensitivity value to set. This parameter can be one of the following values: EXTI_Trigger_Falling_Low: Interrupt on Falling edge and Low level EXTI_Trigger_Rising: Interrupt on Rising edge only EXTI_Trigger_Falling: Interrupt on Falling edge only EXTI_Trigger_Rising_Falling: Interrupt on Rising and Falling edges

Return values:

None

Definition at line 332 of file stm8l15x_exti.c.

References EXTI, IS_EXTI_PORT, and IS_EXTI_TRIGGER.