HAL_GPIO_WritePin() function

Sets or clears the selected data port bit.

Syntax

from stm32f4xx_hal_gpio.h:235

void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState);

Implemented in stm32f4xx_hal_gpio.c:410

Arguments

GPIOx

where x can be (A..K) to select the GPIO peripheral for STM32F429X device or x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X 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).

PinState

specifies the value to be written to the selected bit. This parameter can be one of the GPIO_PinState enum values: @arg GPIO_PIN_RESET: to clear the port pin @arg GPIO_PIN_SET: to set the port pin

Return value

None

Notes

This function 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.

Examples

HAL_GPIO_WritePin() is referenced by 95 libraries and example projects.

References

Location	Text
stm32f4xx_hal_gpio.c:410	void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
stm32f4xx_hal_gpio.h:235	void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState);

Call Tree

Functions called by HAL_GPIO_WritePin()

HAL_GPIO_WritePin()

assert_failed()

all items filtered out

Data read by HAL_GPIO_WritePin()

Data written by HAL_GPIO_WritePin()

GPIO_PinState::GPIO_PIN_RESET

HAL_GPIO_WritePin()::GPIOx

HAL_GPIO_WritePin()::GPIO_Pin

HAL_GPIO_WritePin()::PinState

GPIO_PinState::GPIO_PIN_SET

all items filtered out

HAL_GPIO_WritePin()

GPIO_TypeDef::BSRR

all items filtered out