HAL_GPIO_ReadPin() function

Reads the specified input port pin.

Syntax

from stm32f4xx_hal_gpio.h:234

GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);

Implemented in stm32f4xx_hal_gpio.c:375

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 read. This parameter can be GPIO_PIN_x where x can be (0..15).

Return value

The input port pin value.

Examples

HAL_GPIO_ReadPin() is referenced by 41 libraries and example projects.

References

Location	Text
stm32f4xx_hal_gpio.c:375	GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
stm32f4xx_hal_gpio.h:234	GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);