GPIO driver modules. More...

Modules
	Configuration_Mode_enumeration

	Output_type_enumeration

	Output_Maximum_frequency_enumeration

	Configuration_Pull-Up_Pull-Down_enumeration

	Bit_SET_and_Bit_RESET_enumeration

	GPIO_Exported_Constants

	GPIO_Private_Functions

Data Structures
struct	GPIO_InitTypeDef
	GPIO Init structure definition. More...

Macros
#define	IS_GPIO_ALL_PERIPH(PERIPH)

#define	IS_GPIO_LIST_PERIPH(PERIPH)

Functions
void	GPIO_DeInit (GPIO_TypeDef *GPIOx)
	Deinitializes the GPIOx peripheral registers to their default reset values. More...

void	GPIO_Init (GPIO_TypeDef GPIOx, GPIO_InitTypeDef GPIO_InitStruct)
	Initializes the GPIOx peripheral according to the specified parameters in the GPIO_InitStruct. More...

void	GPIO_StructInit (GPIO_InitTypeDef *GPIO_InitStruct)
	Fills each GPIO_InitStruct member with its default value. More...

void	GPIO_PinLockConfig (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Locks GPIO Pins configuration registers. More...

uint8_t	GPIO_ReadInputDataBit (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Reads the specified input port pin. More...

uint16_t	GPIO_ReadInputData (GPIO_TypeDef *GPIOx)
	Reads the specified input port pin. More...

uint8_t	GPIO_ReadOutputDataBit (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Reads the specified output data port bit. More...

uint16_t	GPIO_ReadOutputData (GPIO_TypeDef *GPIOx)
	Reads the specified GPIO output data port. More...

void	GPIO_SetBits (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Sets the selected data port bits. More...

void	GPIO_ResetBits (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Clears the selected data port bits. More...

void	GPIO_WriteBit (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
	Sets or clears the selected data port bit. More...

void	GPIO_Write (GPIO_TypeDef *GPIOx, uint16_t PortVal)
	Writes data to the specified GPIO data port. More...

void	GPIO_PinAFConfig (GPIO_TypeDef *GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
	Writes data to the specified GPIO data port. More...

Detailed Description

GPIO driver modules.

Macro Definition Documentation

#define IS_GPIO_ALL_PERIPH ( PERIPH )

Value:

(((PERIPH) == GPIOA) || \
                                    ((PERIPH) == GPIOB) || \
                                    ((PERIPH) == GPIOC) || \
                                    ((PERIPH) == GPIOD) || \
                                    ((PERIPH) == GPIOF))

#define IS_GPIO_LIST_PERIPH ( PERIPH )

Value:

(((PERIPH) == GPIOA) || \

((PERIPH) == GPIOB))

Function Documentation

void GPIO_DeInit ( GPIO_TypeDef * GPIOx )

Deinitializes the GPIOx peripheral registers to their default reset values.

Parameters

GPIOx,: where x can be (A, B, C, D or F) to select the GPIO peripheral.

Return values

None

void GPIO_Init	(	GPIO_TypeDef *	GPIOx,
		GPIO_InitTypeDef *	GPIO_InitStruct
	)

Initializes the GPIOx peripheral according to the specified parameters in the GPIO_InitStruct.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_InitStruct,:	pointer to a GPIO_InitTypeDef structure that contains the configuration information for the specified GPIO peripheral.

Note: The configured pins can be: GPIO_Pin_0 to GPIO_Pin_15 for GPIOA, GPIOB and GPIOC, GPIO_Pin_0 to GPIO_Pin_2 for GPIOD, GPIO_Pin_0 to GPIO_Pin_3 for GPIOF.

Return values

None

void GPIO_PinAFConfig	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_PinSource,
		uint8_t	GPIO_AF
	)

Writes data to the specified GPIO data port.

Parameters

GPIOx,:	where x can be (A or B) to select the GPIO peripheral.
GPIO_PinSource,:	specifies the pin for the Alternate function. This parameter can be GPIO_PinSourcex where x can be (0..15).
GPIO_AF,:	selects the pin to used as Alternate function. This parameter can be one of the following value: GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17,MCO, SWDAT, SWCLK, TIM14, BOOT,USART1, CEC, IR_OUT, SPI2 GPIO_AF_1: USART2, CEC, Tim3, USART1, USART2,EVENTOUT, I2C1, I2C2, TIM15 GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17 GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT GPIO_AF_4: TIM14 GPIO_AF_5: TIM16, TIM17 GPIO_AF_6: EVENTOUT GPIO_AF_7: COMP1 OUT, COMP2 OUT

Note: The pin should already been configured in Alternate Function mode(AF) using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF; Refer to the Alternate function mapping table in the device datasheet for the detailed mapping of the system and peripherals'alternate function I/O pins.

Return values

None

void GPIO_PinLockConfig	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Locks GPIO Pins configuration registers.

Note: The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.; The configuration of the locked GPIO pins can no longer be modified until the next device reset.

Parameters

GPIOx,:	where x can be (A or B) to select the GPIO peripheral.
GPIO_Pin,:	specifies the port bit to be written. This parameter can be any combination of GPIO_Pin_x where x can be (0..15).

Return values

None

uint16_t GPIO_ReadInputData ( GPIO_TypeDef * GPIOx )

Reads the specified input port pin.

Parameters

GPIOx,: where x can be (A, B, C, D or F) to select the GPIO peripheral.

Return values

The	input port pin value.

uint8_t GPIO_ReadInputDataBit	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Reads the specified input port pin.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_Pin,:	specifies the port bit to read.

Note: This parameter can be GPIO_Pin_x where x can be:(0..15) for GPIOA, GPIOB or GPIOC,(0..2) for GPIOD and(0..3) for GPIOF.

Return values

The	input port pin value.

uint16_t GPIO_ReadOutputData ( GPIO_TypeDef * GPIOx )

Reads the specified GPIO output data port.

Parameters

GPIOx,: where x can be (A, B, C, D or F) to select the GPIO peripheral.

Return values

GPIO	output data port value.

uint8_t GPIO_ReadOutputDataBit	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Reads the specified output data port bit.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_Pin,:	Specifies the port bit to read.

Note: This parameter can be GPIO_Pin_x where x can be:(0..15) for GPIOA, GPIOB or GPIOC,(0..2) for GPIOD and(0..3) for GPIOF.

Return values

The	output port pin value.

void GPIO_ResetBits	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Clears the selected data port bits.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_Pin,:	specifies the port bits to be written.

Note: This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOB or GPIOC,(0..2) for GPIOD and(0..3) for GPIOF.

Return values

None

void GPIO_SetBits	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Sets the selected data port bits.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_Pin,:	specifies the port bits to be written.

Note: This parameter can be GPIO_Pin_x where x can be:(0..15) for GPIOA, GPIOB or GPIOC,(0..2) for GPIOD and(0..3) for GPIOF.

Return values

None

void GPIO_StructInit ( GPIO_InitTypeDef * GPIO_InitStruct )

Fills each GPIO_InitStruct member with its default value.

Parameters

GPIO_InitStruct,: pointer to a GPIO_InitTypeDef structure which will be initialized.

Return values

None

void GPIO_Write	(	GPIO_TypeDef *	GPIOx,
		uint16_t	PortVal
	)

Writes data to the specified GPIO data port.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
PortVal,:	specifies the value to be written to the port output data register.

Return values

None

void GPIO_WriteBit	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin,
		BitAction	BitVal
	)

Sets or clears the selected data port bit.

Parameters

GPIOx,:	where x can be (A, B, C, D or F) to select the GPIO peripheral.
GPIO_Pin,:	specifies the port bit to be written.
BitVal,:	specifies the value to be written to the selected bit. This parameter can be one of the BitAction enumeration values: Bit_RESET: to clear the port pin Bit_SET: to set the port pin

Note: The GPIO_Pin parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOB or GPIOC,(0..2) for GPIOD and(0..3) for GPIOF.

Return values

None

Modules

Data Structures

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation