IO operation functions

Functions
GPIO_PinState	HAL_GPIO_ReadPin (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	Read the specified input port pin. More...
void	HAL_GPIO_WritePin (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin, GPIO_PinState PinState)
	Set or clear the selected data port bit. More...
void	HAL_GPIO_TogglePin (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	Toggle the specified GPIO pin. More...
void	HAL_GPIO_EXTI_IRQHandler (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	Handle EXTI interrupt request. More...
void	HAL_GPIO_EXTI_Callback (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	EXTI line detection callback. More...
uint32_t	HAL_GPIO_GetMode (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	Get the GPIO mode. More...
void	HAL_GPIO_IRQHandler (GPIO_TypeDef *hgpio)
	Handle all GPIO interrupt request which belong current group. More...
HAL_StatusTypeDef	HAL_GPIO_Save (GPIO_TypeDef *hgpio, GPIOxRestore_TypeDef *p_buf, uint32_t buf_cnt)
	Save gpio instance's all configuration to buffer. More...
HAL_StatusTypeDef	HAL_GPIO_Restore (GPIO_TypeDef *hgpio, GPIOxRestore_TypeDef *p_buf, uint32_t buf_cnt)
	Restore gpio instance's all configuration from buffer. More...
HAL_StatusTypeDef	HAL_GPIO_ClearInterrupt (GPIO_TypeDef *hgpio)
	Clear all interrupt. More...
HAL_StatusTypeDef	HAL_GPIO_ClearPinInterrupt (GPIO_TypeDef *hgpio, uint16_t GPIO_Pin)
	Clear specified pin interrupt. More...

Detailed Description

Function Documentation

HAL_GPIO_ClearInterrupt()

HAL_StatusTypeDef HAL_GPIO_ClearInterrupt

(

GPIO_TypeDef *

hgpio

)

Clear all interrupt.

Parameters

hgpio

GPIO handle

Returns

Hal status error

HAL_GPIO_ClearPinInterrupt()

HAL_StatusTypeDef HAL_GPIO_ClearPinInterrupt	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

Clear specified pin interrupt.

Parameters

hgpio	GPIO handle
GPIO_Pin	specifies the pin index to be clear, starting from 0.

Returns

HAL_OK if IRQ been clear

HAL_GPIO_EXTI_Callback()

void HAL_GPIO_EXTI_Callback	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

EXTI line detection callback.

Parameters

hgpio	GPIO handle
GPIO_Pin	Specifies the port pin connected to corresponding EXTI line, starting from 0.

Return values

None

HAL_GPIO_EXTI_IRQHandler()

void HAL_GPIO_EXTI_IRQHandler	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

Handle EXTI interrupt request.

Parameters

hgpio	GPIO handle
GPIO_Pin	Specifies the port pin connected to corresponding EXTI line, starting from 0.

Return values

None

HAL_GPIO_GetMode()

uint32_t HAL_GPIO_GetMode	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

Get the GPIO mode.

Parameters

hgpio	GPIO handle
GPIO_Pin	Specifies the port pin connected to corresponding EXTI line, starting from 0.

Return values

mode	in GPIO mode, return UINT32_MAX if invalid

HAL_GPIO_IRQHandler()

void HAL_GPIO_IRQHandler

(

GPIO_TypeDef *

hgpio

)

Handle all GPIO interrupt request which belong current group.

Parameters

hgpio

GPIO handle

Return values

None

HAL_GPIO_ReadPin()

GPIO_PinState HAL_GPIO_ReadPin	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

Read the specified input port pin.

Parameters

hgpio	GPIO handle
GPIO_Pin	specifies the pin index to be read, starting from 0.

Return values

The	input port pin value.

HAL_GPIO_Restore()

HAL_StatusTypeDef HAL_GPIO_Restore	(	GPIO_TypeDef *	hgpio,
		GPIOxRestore_TypeDef *	p_buf,
		uint32_t	buf_cnt
	)

Restore gpio instance's all configuration from buffer.

Parameters

hgpio	- GPIO handle
p_buf	- Buffer for restore GPIO configuration
buf_cnt	- Buffer numbers

Returns

Hal status error

HAL_GPIO_Save()

HAL_StatusTypeDef HAL_GPIO_Save	(	GPIO_TypeDef *	hgpio,
		GPIOxRestore_TypeDef *	p_buf,
		uint32_t	buf_cnt
	)

Save gpio instance's all configuration to buffer.

Parameters

hgpio	- GPIO handle
p_buf	- Buffer for saving GPIO configuration
buf_cnt	- Buffer numbers

Returns

Hal status error

HAL_GPIO_TogglePin()

void HAL_GPIO_TogglePin	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin
	)

Toggle the specified GPIO pin.

Parameters

hgpio	GPIO handle
GPIO_Pin	specifies the pin index to be toggoled, starting from 0.

Return values

None

HAL_GPIO_WritePin()

void HAL_GPIO_WritePin	(	GPIO_TypeDef *	hgpio,
		uint16_t	GPIO_Pin,
		GPIO_PinState	PinState
	)

Set or clear the selected data port bit.

Parameters

hgpio	GPIO handle
GPIO_Pin	specifies the pin index to be written, starting from 0.
PinState	specifies the value to be written to the selected bit. This parameter can be one of the GPIO_PinState enum values: GPIO_PIN_RESET: to clear the port pin GPIO_PIN_SET: to set the port pin

Return values

None