LL_GPIO_LockPin() function

Lock configuration of several pins for a dedicated port.

Syntax

from stm32f4xx_ll_gpio.h:707

__STATIC_INLINE void LL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint32_t PinMask);

Arguments

GPIOx

GPIO Port

PinMask

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

Return value

None

Notes

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).

References

Location	Text
stm32f4xx_ll_gpio.h:707	__STATIC_INLINE void LL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)

Data Use

Data read by LL_GPIO_LockPin()

Data written by LL_GPIO_LockPin()

GPIO_TypeDef::LCKR

LL_GPIO_LockPin()::GPIOx

LL_GPIO_LockPin()::PinMask

LL_GPIO_LockPin()::temp

all items filtered out

LL_GPIO_LockPin()

LL_GPIO_LockPin()::temp

all items filtered out

Type of LL_GPIO_LockPin()

LL_GPIO_LockPin()

uint32_t

all items filtered out