GPIO driver modules. More...

Collaboration diagram for GPIO:

Modules
	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_MODE(MODE)

#define	IS_GPIO_OTYPE(OTYPE) (((OTYPE) == GPIO_OType_PP) \|\| ((OTYPE) == GPIO_OType_OD))

#define	GPIO_Speed_2MHz GPIO_Low_Speed

#define	GPIO_Speed_25MHz GPIO_Medium_Speed

#define	GPIO_Speed_50MHz GPIO_Fast_Speed

#define	GPIO_Speed_100MHz GPIO_High_Speed

#define	IS_GPIO_SPEED(SPEED)

#define	IS_GPIO_PUPD(PUPD)

#define	IS_GPIO_BIT_ACTION(ACTION) (((ACTION) == Bit_RESET) \|\| ((ACTION) == Bit_SET))

Enumerations
enum	GPIOMode_TypeDef { GPIO_Mode_IN = 0x00, GPIO_Mode_OUT = 0x01, GPIO_Mode_AF = 0x02, GPIO_Mode_AN = 0x03 }
	GPIO Configuration Mode enumeration. More...

enum	GPIOOType_TypeDef { GPIO_OType_PP = 0x00, GPIO_OType_OD = 0x01 }
	GPIO Output type enumeration.

enum	GPIOSpeed_TypeDef { GPIO_Low_Speed = 0x00, GPIO_Medium_Speed = 0x01, GPIO_Fast_Speed = 0x02, GPIO_High_Speed = 0x03 }
	GPIO Output Maximum frequency enumeration. More...

enum	GPIOPuPd_TypeDef { GPIO_PuPd_NOPULL = 0x00, GPIO_PuPd_UP = 0x01, GPIO_PuPd_DOWN = 0x02 }
	GPIO Configuration PullUp PullDown enumeration.

enum	BitAction { Bit_RESET = 0, Bit_SET }
	GPIO Bit SET and Bit RESET enumeration.

Functions
void	GPIO_DeInit (GPIO_TypeDef *GPIOx)
	De-initializes 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 GPIO input data port. 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_ToggleBits (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
	Toggles the specified GPIO pins.. More...

void	GPIO_PinAFConfig (GPIO_TypeDef *GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
	Changes the mapping of the specified pin. 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) == GPIOE) || \
                                    ((PERIPH) == GPIOF) || \
                                    ((PERIPH) == GPIOG) || \
                                    ((PERIPH) == GPIOH) || \
                                    ((PERIPH) == GPIOI) || \
                                    ((PERIPH) == GPIOJ) || \
                                    ((PERIPH) == GPIOK))

Definition at line 50 of file stm32f4xx_gpio.h.

#define IS_GPIO_MODE ( MODE )

Value:

(((MODE) == GPIO_Mode_IN) || ((MODE) == GPIO_Mode_OUT) || \

((MODE) == GPIO_Mode_AF)|| ((MODE) == GPIO_Mode_AN))

GPIO_Mode_IN

Definition: stm32f4xx_gpio.h:67

GPIO_Mode_AF

Definition: stm32f4xx_gpio.h:69

GPIO_Mode_AN

Definition: stm32f4xx_gpio.h:70

GPIO_Mode_OUT

Definition: stm32f4xx_gpio.h:68

Definition at line 72 of file stm32f4xx_gpio.h.

#define IS_GPIO_PUPD ( PUPD )

Value:

(((PUPD) == GPIO_PuPd_NOPULL) || ((PUPD) == GPIO_PuPd_UP) || \

((PUPD) == GPIO_PuPd_DOWN))

Definition at line 115 of file stm32f4xx_gpio.h.

#define IS_GPIO_SPEED ( SPEED )

Value:

(((SPEED) == GPIO_Low_Speed) || ((SPEED) == GPIO_Medium_Speed) || \

((SPEED) == GPIO_Fast_Speed)|| ((SPEED) == GPIO_High_Speed))

GPIO_Fast_Speed

Definition: stm32f4xx_gpio.h:93

GPIO_Medium_Speed

Definition: stm32f4xx_gpio.h:92

GPIO_Low_Speed

Definition: stm32f4xx_gpio.h:91

GPIO_High_Speed

Definition: stm32f4xx_gpio.h:94

Definition at line 103 of file stm32f4xx_gpio.h.

Enumeration Type Documentation

enum GPIOMode_TypeDef

GPIO Configuration Mode enumeration.

Enumerator
GPIO_Mode_IN	GPIO Input Mode
GPIO_Mode_OUT	GPIO Output Mode
GPIO_Mode_AF	GPIO Alternate function Mode
GPIO_Mode_AN	GPIO Analog Mode

Definition at line 65 of file stm32f4xx_gpio.h.

enum GPIOSpeed_TypeDef

GPIO Output Maximum frequency enumeration.

Enumerator
GPIO_Low_Speed	Low speed
GPIO_Medium_Speed	Medium speed
GPIO_Fast_Speed	Fast speed
GPIO_High_Speed	High speed

Definition at line 89 of file stm32f4xx_gpio.h.

Function Documentation

void GPIO_DeInit ( GPIO_TypeDef * GPIOx )

De-initializes the GPIOx peripheral registers to their default reset values.

Note: By default, The GPIO pins are configured in input floating mode (except JTAG pins).

Parameters

GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.

Return values

None

Definition at line 127 of file stm32f4xx_gpio.c.

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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..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_InitStruct	pointer to a GPIO_InitTypeDef structure that contains the configuration information for the specified GPIO peripheral.

Return values

None

Examples:: gpio_stdperiph.c.

Definition at line 202 of file stm32f4xx_gpio.c.

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

Changes the mapping of the specified pin.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_PinSource	specifies the pin for the Alternate function. This parameter can be GPIO_PinSourcex where x can be (0..15).
GPIO_AFSelection	selects the pin to used as Alternate function. This parameter can be one of the following values: GPIO_AF_RTC_50Hz: Connect RTC_50Hz pin to AF0 (default after reset) GPIO_AF_MCO: Connect MCO pin (MCO1 and MCO2) to AF0 (default after reset) GPIO_AF_TAMPER: Connect TAMPER pins (TAMPER_1 and TAMPER_2) to AF0 (default after reset) GPIO_AF_SWJ: Connect SWJ pins (SWD and JTAG)to AF0 (default after reset) GPIO_AF_TRACE: Connect TRACE pins to AF0 (default after reset) GPIO_AF_TIM1: Connect TIM1 pins to AF1 GPIO_AF_TIM2: Connect TIM2 pins to AF1 GPIO_AF_TIM3: Connect TIM3 pins to AF2 GPIO_AF_TIM4: Connect TIM4 pins to AF2 GPIO_AF_TIM5: Connect TIM5 pins to AF2 GPIO_AF_TIM8: Connect TIM8 pins to AF3 GPIO_AF_TIM9: Connect TIM9 pins to AF3 GPIO_AF_TIM10: Connect TIM10 pins to AF3 GPIO_AF_TIM11: Connect TIM11 pins to AF3 GPIO_AF_I2C1: Connect I2C1 pins to AF4 GPIO_AF_I2C2: Connect I2C2 pins to AF4 GPIO_AF_I2C3: Connect I2C3 pins to AF4 GPIO_AF_SPI1: Connect SPI1 pins to AF5 GPIO_AF_SPI2: Connect SPI2/I2S2 pins to AF5 GPIO_AF_SPI4: Connect SPI4 pins to AF5 GPIO_AF_SPI5: Connect SPI5 pins to AF5 GPIO_AF_SPI6: Connect SPI6 pins to AF5 GPIO_AF_SAI1: Connect SAI1 pins to AF6 for STM32F42xxx/43xxx devices. GPIO_AF_SPI3: Connect SPI3/I2S3 pins to AF6 GPIO_AF_I2S3ext: Connect I2S3ext pins to AF7 GPIO_AF_USART1: Connect USART1 pins to AF7 GPIO_AF_USART2: Connect USART2 pins to AF7 GPIO_AF_USART3: Connect USART3 pins to AF7 GPIO_AF_UART4: Connect UART4 pins to AF8 GPIO_AF_UART5: Connect UART5 pins to AF8 GPIO_AF_USART6: Connect USART6 pins to AF8 GPIO_AF_UART7: Connect UART7 pins to AF8 GPIO_AF_UART8: Connect UART8 pins to AF8 GPIO_AF_CAN1: Connect CAN1 pins to AF9 GPIO_AF_CAN2: Connect CAN2 pins to AF9 GPIO_AF_TIM12: Connect TIM12 pins to AF9 GPIO_AF_TIM13: Connect TIM13 pins to AF9 GPIO_AF_TIM14: Connect TIM14 pins to AF9 GPIO_AF_OTG_FS: Connect OTG_FS pins to AF10 GPIO_AF_OTG_HS: Connect OTG_HS pins to AF10 GPIO_AF_ETH: Connect ETHERNET pins to AF11 GPIO_AF_FSMC: Connect FSMC pins to AF12 GPIO_AF_FMC: Connect FMC pins to AF12 for STM32F42xxx/43xxx devices. GPIO_AF_OTG_HS_FS: Connect OTG HS (configured in FS) pins to AF12 GPIO_AF_SDIO: Connect SDIO pins to AF12 GPIO_AF_DCMI: Connect DCMI pins to AF13 GPIO_AF_LTDC: Connect LTDC pins to AF14 for STM32F429xx/439xx devices. GPIO_AF_EVENTOUT: Connect EVENTOUT pins to AF15

Return values

None

Definition at line 579 of file stm32f4xx_gpio.c.

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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 reset.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bit to be locked. This parameter can be any combination of GPIO_Pin_x where x can be (0..15).

Return values

None

Definition at line 277 of file stm32f4xx_gpio.c.

uint16_t GPIO_ReadInputData ( GPIO_TypeDef * GPIOx )

Reads the specified GPIO input data port.

Parameters

GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.

Return values

GPIO	input data port value.

Definition at line 349 of file stm32f4xx_gpio.c.

uint8_t GPIO_ReadInputDataBit	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Reads the specified input port pin.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bit to read. This parameter can be GPIO_Pin_x where x can be (0..15).

Return values

The	input port pin value.

Definition at line 323 of file stm32f4xx_gpio.c.

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uint16_t GPIO_ReadOutputData ( GPIO_TypeDef * GPIOx )

Reads the specified GPIO output data port.

Parameters

GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.

Return values

GPIO	output data port value.

Definition at line 392 of file stm32f4xx_gpio.c.

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..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bit to read. This parameter can be GPIO_Pin_x where x can be (0..15).

Return values

The	output port pin value.

Definition at line 366 of file stm32f4xx_gpio.c.

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void GPIO_ResetBits	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Clears the selected data port bits.

Note: This functions uses GPIOx_BSRR register to allow atomic read/modify accesses. In this way, there is no risk of an IRQ occurring between the read and the modify access.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bits to be written. This parameter can be any combination of GPIO_Pin_x where x can be (0..15).

Return values

None

Definition at line 433 of file stm32f4xx_gpio.c.

void GPIO_SetBits	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Sets the selected data port bits.

Note: This functions uses GPIOx_BSRR register to allow atomic read/modify accesses. In this way, there is no risk of an IRQ occurring between the read and the modify access.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bits to be written. This parameter can be any combination of GPIO_Pin_x where x can be (0..15).

Return values

None

Definition at line 412 of file stm32f4xx_gpio.c.

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

Examples:: gpio_stdperiph.c.

Definition at line 254 of file stm32f4xx_gpio.c.

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void GPIO_ToggleBits	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_Pin
	)

Toggles the specified GPIO pins..

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	Specifies the pins to be toggled.

Return values

None

Definition at line 496 of file stm32f4xx_gpio.c.

void GPIO_Write	(	GPIO_TypeDef *	GPIOx,
		uint16_t	PortVal
	)

Writes data to the specified GPIO data port.

Parameters

GPIOx	where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
PortVal	specifies the value to be written to the port output data register.

Return values

None

Definition at line 480 of file stm32f4xx_gpio.c.

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..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices. x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
GPIO_Pin	specifies the port bit to be written. This parameter can be one of GPIO_Pin_x where x can be (0..15).
BitVal	specifies the value to be written to the selected bit. This parameter can be one of the BitAction enum values: Bit_RESET: to clear the port pin Bit_SET: to set the port pin

Return values

None

Examples:: gpio_stdperiph.c.

Definition at line 455 of file stm32f4xx_gpio.c.

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Modules

Data Structures

Macros

Enumerations

Functions

Detailed Description

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation