Port Configuration

Functions
__STATIC_INLINE void	LL_GPIO_SetPinMode (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Mode)
	Configure gpio mode for a dedicated pin on dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetPinMode (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio mode for a dedicated pin on dedicated port. More...
__STATIC_INLINE void	LL_GPIO_SetPinOutputType (GPIO_TypeDef *GPIOx, uint32_t PinMask, uint32_t OutputType)
	Configure gpio output type for several pins on dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetPinOutputType (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio output type for several pins on dedicated port. More...
__STATIC_INLINE void	LL_GPIO_SetPinSpeed (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Speed)
	Configure gpio speed for a dedicated pin on dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetPinSpeed (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio speed for a dedicated pin on dedicated port. More...
__STATIC_INLINE void	LL_GPIO_SetPinPull (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Pull)
	Configure gpio pull-up or pull-down for a dedicated pin on a dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetPinPull (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio pull-up or pull-down for a dedicated pin on a dedicated port. More...
__STATIC_INLINE void	LL_GPIO_SetAFPin_0_7 (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
	Configure gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetAFPin_0_7 (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port. AFRL AFSELy LL_GPIO_GetAFPin_0_7. More...
__STATIC_INLINE void	LL_GPIO_SetAFPin_8_15 (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
	Configure gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_GetAFPin_8_15 (GPIO_TypeDef *GPIOx, uint32_t Pin)
	Return gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port. More...
__STATIC_INLINE void	LL_GPIO_EnablePinAnalogControl (GPIO_TypeDef *GPIOx, uint32_t PinMask)
	Connect analog switch to ADC input of several pins for a dedicated port. More...
__STATIC_INLINE void	LL_GPIO_DisablePinAnalogControl (GPIO_TypeDef *GPIOx, uint32_t PinMask)
	Disconnect analog switch to ADC input of several pins for a dedicated port. ASCR ASCy LL_GPIO_DisablePinAnalogControl. More...
__STATIC_INLINE void	LL_GPIO_LockPin (GPIO_TypeDef *GPIOx, uint32_t PinMask)
	Lock configuration of several pins for a dedicated port. More...
__STATIC_INLINE uint32_t	LL_GPIO_IsPinLocked (GPIO_TypeDef *GPIOx, uint32_t PinMask)
	Return 1 if all pins passed as parameter, of a dedicated port, are locked. else Return 0. LCKR LCKy LL_GPIO_IsPinLocked. More...
__STATIC_INLINE uint32_t	LL_GPIO_IsAnyPinLocked (GPIO_TypeDef *GPIOx)
	Return 1 if one of the pin of a dedicated port is locked. else return 0. LCKR LCKK LL_GPIO_IsAnyPinLocked. More...

Detailed Description

Function Documentation

LL_GPIO_DisablePinAnalogControl()

__STATIC_INLINE void LL_GPIO_DisablePinAnalogControl	(	GPIO_TypeDef *	GPIOx,
		uint32_t	PinMask
	)

Disconnect analog switch to ADC input of several pins for a dedicated port. ASCR ASCy LL_GPIO_DisablePinAnalogControl.

Parameters

GPIOx	GPIO Port
PinMask	This parameter can be a combination of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL

Return values

None

Definition at line 747 of file stm32l4xx_ll_gpio.h.

{
  CLEAR_BIT(GPIOx->ASCR, PinMask);
}

LL_GPIO_EnablePinAnalogControl()

__STATIC_INLINE void LL_GPIO_EnablePinAnalogControl	(	GPIO_TypeDef *	GPIOx,
		uint32_t	PinMask
	)

Connect analog switch to ADC input of several pins for a dedicated port.

Note

This bit must be set prior to the ADC conversion. Only the IO which connected to the ADC input are effective. Other IO must be kept reset value ASCR ASCy LL_GPIO_EnablePinAnalogControl

Parameters

GPIOx	GPIO Port
PinMask	This parameter can be a combination of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL

Return values

None

Definition at line 718 of file stm32l4xx_ll_gpio.h.

{
  SET_BIT(GPIOx->ASCR, PinMask);
}

LL_GPIO_GetAFPin_0_7()

__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_0_7	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port. AFRL AFSELy LL_GPIO_GetAFPin_0_7.

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7

Return values

Returned

value can be one of the following values: LL_GPIO_AF_0 LL_GPIO_AF_1 LL_GPIO_AF_2 LL_GPIO_AF_3 LL_GPIO_AF_4 LL_GPIO_AF_5 LL_GPIO_AF_6 LL_GPIO_AF_7 LL_GPIO_AF_8 LL_GPIO_AF_9 LL_GPIO_AF_10 LL_GPIO_AF_11 LL_GPIO_AF_12 LL_GPIO_AF_13 LL_GPIO_AF_14 LL_GPIO_AF_15

Definition at line 606 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->AFR[0],
                             (GPIO_AFRL_AFSEL0 << (POSITION_VAL(Pin) * 4U))) >> (POSITION_VAL(Pin) * 4U));
}

LL_GPIO_GetAFPin_8_15()

__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_8_15	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port.

Note

Possible values are from AF0 to AF15 depending on target. AFRH AFSELy LL_GPIO_GetAFPin_8_15

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15

Return values

Returned

value can be one of the following values: LL_GPIO_AF_0 LL_GPIO_AF_1 LL_GPIO_AF_2 LL_GPIO_AF_3 LL_GPIO_AF_4 LL_GPIO_AF_5 LL_GPIO_AF_6 LL_GPIO_AF_7 LL_GPIO_AF_8 LL_GPIO_AF_9 LL_GPIO_AF_10 LL_GPIO_AF_11 LL_GPIO_AF_12 LL_GPIO_AF_13 LL_GPIO_AF_14 LL_GPIO_AF_15

Definition at line 684 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->AFR[1],
                             (GPIO_AFRH_AFSEL8 << (POSITION_VAL(Pin >> 8U) * 4U))) >> (POSITION_VAL(Pin >> 8U) * 4U));
}

LL_GPIO_GetPinMode()

__STATIC_INLINE uint32_t LL_GPIO_GetPinMode	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio mode for a dedicated pin on dedicated port.

Note

I/O mode can be Input mode, General purpose output, Alternate function mode or Analog.

Warning: only one pin can be passed as parameter. MODER MODEy LL_GPIO_GetPinMode

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15

Return values

Returned

value can be one of the following values: LL_GPIO_MODE_INPUT LL_GPIO_MODE_OUTPUT LL_GPIO_MODE_ALTERNATE LL_GPIO_MODE_ANALOG

Definition at line 320 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->MODER,
                             (GPIO_MODER_MODE0 << (POSITION_VAL(Pin) * 2U))) >> (POSITION_VAL(Pin) * 2U));
}

LL_GPIO_GetPinOutputType()

__STATIC_INLINE uint32_t LL_GPIO_GetPinOutputType	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio output type for several pins on dedicated port.

Note

Output type as to be set when gpio pin is in output or alternate modes. Possible type are Push-pull or Open-drain.

Warning: only one pin can be passed as parameter. OTYPER OTy LL_GPIO_GetPinOutputType

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL

Return values

Returned

value can be one of the following values: LL_GPIO_OUTPUT_PUSHPULL LL_GPIO_OUTPUT_OPENDRAIN

Definition at line 389 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->OTYPER, Pin) >> POSITION_VAL(Pin));
}

LL_GPIO_GetPinPull()

__STATIC_INLINE uint32_t LL_GPIO_GetPinPull	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio pull-up or pull-down for a dedicated pin on a dedicated port.

Note

Warning: only one pin can be passed as parameter. PUPDR PUPDy LL_GPIO_GetPinPull

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15

Return values

Returned

value can be one of the following values: LL_GPIO_PULL_NO LL_GPIO_PULL_UP LL_GPIO_PULL_DOWN

Definition at line 529 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->PUPDR,
                             (GPIO_PUPDR_PUPD0 << (POSITION_VAL(Pin) * 2U))) >> (POSITION_VAL(Pin) * 2U));
}

LL_GPIO_GetPinSpeed()

__STATIC_INLINE uint32_t LL_GPIO_GetPinSpeed	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin
	)

Return gpio speed for a dedicated pin on dedicated port.

Note

I/O speed can be Low, Medium, Fast or High speed.

Warning: only one pin can be passed as parameter.

Refer to datasheet for frequency specifications and the power supply and load conditions for each speed. OSPEEDR OSPEEDy LL_GPIO_GetPinSpeed

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15

Return values

Returned

value can be one of the following values: LL_GPIO_SPEED_FREQ_LOW LL_GPIO_SPEED_FREQ_MEDIUM LL_GPIO_SPEED_FREQ_HIGH LL_GPIO_SPEED_FREQ_VERY_HIGH

Definition at line 463 of file stm32l4xx_ll_gpio.h.

{
  return (uint32_t)(READ_BIT(GPIOx->OSPEEDR,
                             (GPIO_OSPEEDR_OSPEED0 << (POSITION_VAL(Pin) * 2U))) >> (POSITION_VAL(Pin) * 2U));
}

LL_GPIO_IsAnyPinLocked()

__STATIC_INLINE uint32_t LL_GPIO_IsAnyPinLocked

(

GPIO_TypeDef *

GPIOx

)

Return 1 if one of the pin of a dedicated port is locked. else return 0. LCKR LCKK LL_GPIO_IsAnyPinLocked.

Parameters

GPIOx

GPIO Port

Return values

State

of bit (1 or 0).

Definition at line 828 of file stm32l4xx_ll_gpio.h.

{
  return ((READ_BIT(GPIOx->LCKR, GPIO_LCKR_LCKK) == (GPIO_LCKR_LCKK)) ? 1UL : 0UL);
}

LL_GPIO_IsPinLocked()

__STATIC_INLINE uint32_t LL_GPIO_IsPinLocked	(	GPIO_TypeDef *	GPIOx,
		uint32_t	PinMask
	)

Return 1 if all pins passed as parameter, of a dedicated port, are locked. else Return 0. LCKR LCKy LL_GPIO_IsPinLocked.

Parameters

GPIOx	GPIO Port
PinMask	This parameter can be a combination of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL

Return values

State

of bit (1 or 0).

Definition at line 817 of file stm32l4xx_ll_gpio.h.

{
  return ((READ_BIT(GPIOx->LCKR, PinMask) == (PinMask)) ? 1UL : 0UL);
}

LL_GPIO_LockPin()

__STATIC_INLINE void LL_GPIO_LockPin	(	GPIO_TypeDef *	GPIOx,
		uint32_t	PinMask
	)

Lock configuration of several pins for a dedicated port.

Note

When the lock sequence has been applied on a port bit, the value of this port bit can no longer be modified until the next reset.

Each lock bit freezes a specific configuration register (control and alternate function registers). LCKR LCKK LL_GPIO_LockPin

Parameters

GPIOx	GPIO Port
PinMask	This parameter can be a combination of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL

Return values

None

Definition at line 782 of file stm32l4xx_ll_gpio.h.

{
  __IO uint32_t temp;
  WRITE_REG(GPIOx->LCKR, GPIO_LCKR_LCKK | PinMask);
  WRITE_REG(GPIOx->LCKR, PinMask);
  WRITE_REG(GPIOx->LCKR, GPIO_LCKR_LCKK | PinMask);
  /* Read LCKK register. This read is mandatory to complete key lock sequence */
  temp = READ_REG(GPIOx->LCKR);
  (void) temp;
}

LL_GPIO_SetAFPin_0_7()

__STATIC_INLINE void LL_GPIO_SetAFPin_0_7	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Alternate
	)

Configure gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port.

Note

Possible values are from AF0 to AF15 depending on target.

Warning: only one pin can be passed as parameter. AFRL AFSELy LL_GPIO_SetAFPin_0_7

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7
Alternate	This parameter can be one of the following values: LL_GPIO_AF_0 LL_GPIO_AF_1 LL_GPIO_AF_2 LL_GPIO_AF_3 LL_GPIO_AF_4 LL_GPIO_AF_5 LL_GPIO_AF_6 LL_GPIO_AF_7 LL_GPIO_AF_8 LL_GPIO_AF_9 LL_GPIO_AF_10 LL_GPIO_AF_11 LL_GPIO_AF_12 LL_GPIO_AF_13 LL_GPIO_AF_14 LL_GPIO_AF_15

Return values

None

Definition at line 569 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->AFR[0], (GPIO_AFRL_AFSEL0 << (POSITION_VAL(Pin) * 4U)),
             (Alternate << (POSITION_VAL(Pin) * 4U)));
}

LL_GPIO_SetAFPin_8_15()

__STATIC_INLINE void LL_GPIO_SetAFPin_8_15	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Alternate
	)

Configure gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port.

Note

Possible values are from AF0 to AF15 depending on target.

Warning: only one pin can be passed as parameter. AFRH AFSELy LL_GPIO_SetAFPin_8_15

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15
Alternate	This parameter can be one of the following values: LL_GPIO_AF_0 LL_GPIO_AF_1 LL_GPIO_AF_2 LL_GPIO_AF_3 LL_GPIO_AF_4 LL_GPIO_AF_5 LL_GPIO_AF_6 LL_GPIO_AF_7 LL_GPIO_AF_8 LL_GPIO_AF_9 LL_GPIO_AF_10 LL_GPIO_AF_11 LL_GPIO_AF_12 LL_GPIO_AF_13 LL_GPIO_AF_14 LL_GPIO_AF_15

Return values

None

Definition at line 646 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->AFR[1], (GPIO_AFRH_AFSEL8 << (POSITION_VAL(Pin >> 8U) * 4U)),
             (Alternate << (POSITION_VAL(Pin >> 8U) * 4U)));
}

LL_GPIO_SetPinMode()

__STATIC_INLINE void LL_GPIO_SetPinMode	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Mode
	)

Configure gpio mode for a dedicated pin on dedicated port.

Note

I/O mode can be Input mode, General purpose output, Alternate function mode or Analog.

Warning: only one pin can be passed as parameter. MODER MODEy LL_GPIO_SetPinMode

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15
Mode	This parameter can be one of the following values: LL_GPIO_MODE_INPUT LL_GPIO_MODE_OUTPUT LL_GPIO_MODE_ALTERNATE LL_GPIO_MODE_ANALOG

Return values

None

Definition at line 286 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->MODER, (GPIO_MODER_MODE0 << (POSITION_VAL(Pin) * 2U)), (Mode << (POSITION_VAL(Pin) * 2U)));
}

LL_GPIO_SetPinOutputType()

__STATIC_INLINE void LL_GPIO_SetPinOutputType	(	GPIO_TypeDef *	GPIOx,
		uint32_t	PinMask,
		uint32_t	OutputType
	)

Configure gpio output type for several pins on dedicated port.

Note

Output type as to be set when gpio pin is in output or alternate modes. Possible type are Push-pull or Open-drain. OTYPER OTy LL_GPIO_SetPinOutputType

Parameters

GPIOx	GPIO Port
PinMask	This parameter can be a combination of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15 LL_GPIO_PIN_ALL
OutputType	This parameter can be one of the following values: LL_GPIO_OUTPUT_PUSHPULL LL_GPIO_OUTPUT_OPENDRAIN

Return values

None

Definition at line 355 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->OTYPER, PinMask, (PinMask * OutputType));
}

LL_GPIO_SetPinPull()

__STATIC_INLINE void LL_GPIO_SetPinPull	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Pull
	)

Configure gpio pull-up or pull-down for a dedicated pin on a dedicated port.

Note

Warning: only one pin can be passed as parameter. PUPDR PUPDy LL_GPIO_SetPinPull

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15
Pull	This parameter can be one of the following values: LL_GPIO_PULL_NO LL_GPIO_PULL_UP LL_GPIO_PULL_DOWN

Return values

None

Definition at line 497 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->PUPDR, (GPIO_PUPDR_PUPD0 << (POSITION_VAL(Pin) * 2U)), (Pull << (POSITION_VAL(Pin) * 2U)));
}

LL_GPIO_SetPinSpeed()

__STATIC_INLINE void LL_GPIO_SetPinSpeed	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Speed
	)

Configure gpio speed for a dedicated pin on dedicated port.

Note

I/O speed can be Low, Medium, Fast or High speed.

Warning: only one pin can be passed as parameter.

Refer to datasheet for frequency specifications and the power supply and load conditions for each speed. OSPEEDR OSPEEDy LL_GPIO_SetPinSpeed

Parameters

GPIOx	GPIO Port
Pin	This parameter can be one of the following values: LL_GPIO_PIN_0 LL_GPIO_PIN_1 LL_GPIO_PIN_2 LL_GPIO_PIN_3 LL_GPIO_PIN_4 LL_GPIO_PIN_5 LL_GPIO_PIN_6 LL_GPIO_PIN_7 LL_GPIO_PIN_8 LL_GPIO_PIN_9 LL_GPIO_PIN_10 LL_GPIO_PIN_11 LL_GPIO_PIN_12 LL_GPIO_PIN_13 LL_GPIO_PIN_14 LL_GPIO_PIN_15
Speed	This parameter can be one of the following values: LL_GPIO_SPEED_FREQ_LOW LL_GPIO_SPEED_FREQ_MEDIUM LL_GPIO_SPEED_FREQ_HIGH LL_GPIO_SPEED_FREQ_VERY_HIGH

Return values

None

Definition at line 426 of file stm32l4xx_ll_gpio.h.

{
  MODIFY_REG(GPIOx->OSPEEDR, (GPIO_OSPEEDR_OSPEED0 << (POSITION_VAL(Pin) * 2U)),
             (Speed << (POSITION_VAL(Pin) * 2U)));
}