GPIO Exported Macros

Macros
#define	__HAL_GPIO_EXTI_GET_FLAG(__EXTI_LINE__)   (EXTI->PR1 & (__EXTI_LINE__))
	Checks whether the specified EXTI line flag is set or not.
#define	__HAL_GPIO_EXTI_CLEAR_FLAG(__EXTI_LINE__)   (EXTI->PR1 = (__EXTI_LINE__))
	Clears the EXTI's line pending flags.
#define	__HAL_GPIO_EXTI_GET_IT(__EXTI_LINE__)   (EXTI->PR1 & (__EXTI_LINE__))
	Checks whether the specified EXTI line is asserted or not.
#define	__HAL_GPIO_EXTI_CLEAR_IT(__EXTI_LINE__)   (EXTI->PR1 = (__EXTI_LINE__))
	Clears the EXTI's line pending bits.
#define	__HAL_GPIO_EXTI_GENERATE_SWIT(__EXTI_LINE__)   (EXTI->SWIER1 |= (__EXTI_LINE__))
	Generates a Software interrupt on selected EXTI line.

Detailed Description

Macro Definition Documentation

__HAL_GPIO_EXTI_CLEAR_FLAG

#define __HAL_GPIO_EXTI_CLEAR_FLAG

(

__EXTI_LINE__

)

(EXTI->PR1 = (__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 GPIO_PIN_x where x can be (0..15)

Return values

None

__HAL_GPIO_EXTI_CLEAR_IT

#define __HAL_GPIO_EXTI_CLEAR_IT

(

__EXTI_LINE__

)

(EXTI->PR1 = (__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 GPIO_PIN_x where x can be (0..15)

Return values

None

__HAL_GPIO_EXTI_GENERATE_SWIT

#define __HAL_GPIO_EXTI_GENERATE_SWIT

(

__EXTI_LINE__

)

(EXTI->SWIER1 |= (__EXTI_LINE__))

Generates a Software interrupt on selected EXTI line.

Parameters

__EXTI_LINE__

specifies the EXTI line to check. This parameter can be GPIO_PIN_x where x can be(0..15)

Return values

None

__HAL_GPIO_EXTI_GET_FLAG

#define __HAL_GPIO_EXTI_GET_FLAG

(

__EXTI_LINE__

)

(EXTI->PR1 & (__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 GPIO_PIN_x where x can be(0..15)

Return values

The	new state of EXTI_LINE (SET or RESET).

__HAL_GPIO_EXTI_GET_IT

#define __HAL_GPIO_EXTI_GET_IT

(

__EXTI_LINE__

)

(EXTI->PR1 & (__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 GPIO_PIN_x where x can be(0..15)

Return values

The	new state of EXTI_LINE (SET or RESET).