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The GPIO driver implements the following C-binding API:
Function | Description | Comments |
void HAL_GPIO_Init(GPIO_TypeDef * GPIOx, GPIO_InitTypeDef * GPIO_Init)
| Initialise GPIO pins in a specified GPIO port | GPIOx is a pointer to the GPIO port registers; CPIO_Init is a pointer to a data structure describing configuration of a specific pin of the given GPIO port (see below)
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void HAL_GPIO_DeInit(GPIO_TypeDef * GPIOx, uint32_t GPIO_Pin)
| Reset a GPIO pin to default settings | GPIO_Pin is GPIO_PIN_x, х is one of values from 0 to 15
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GPIO_PinState HAL_GPIO_ReadPin (GPIO_TypeDef * GPIOx, uint16_t GPIO_Pin)
| Read state of a GPIO pin | GPIO_Pin is GPIO_PIN_x, х is one of values from 0 to 15; returns one of {GPIO_PIN_RESET = 0, GPIO_PIN_SET}
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void HAL_GPIO_WritePin(GPIO_TypeDef * GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
| Set or clear a GPIO pin | GPIO_Pin is GPIO_PIN_x, х is one of values from 0 to 15; PinState is either GPIO_PIN_RESET or GPIO_PIN_SET
|
void HAL_GPIO_TogglePin(GPIO_TypeDef * GPIOx, uint16_t GPIO_Pins)
| Toggle specified GPIO pins | |
The GPIO_InitTypeDef data structure used in the HAL_GPIO_Init interface has the following definition:
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