Initialization and de-initialization functions

Collaboration diagram for Initialization and de-initialization functions:

Functions
HAL_StatusTypeDef	HAL_I2C_Init (I2C_HandleTypeDef *hi2c)
HAL_StatusTypeDef	HAL_I2C_DeInit (I2C_HandleTypeDef *hi2c)
void	HAL_I2C_MspInit (I2C_HandleTypeDef *hi2c)
	I2C MSP Initialization This function configures the hardware resources used in this example.
void	HAL_I2C_MspDeInit (I2C_HandleTypeDef *hi2c)
	I2C MSP De-Initialization This function freeze the hardware resources used in this example.

Detailed Description

Function Documentation

HAL_I2C_DeInit()

HAL_StatusTypeDef HAL_I2C_DeInit

(

I2C_HandleTypeDef *

hi2c

)

HAL_I2C_Init()

HAL_StatusTypeDef HAL_I2C_Init

(

I2C_HandleTypeDef *

hi2c

)

Referenced by MX_I2C4_Init().

HAL_I2C_MspDeInit()

void HAL_I2C_MspDeInit

(

I2C_HandleTypeDef *

hi2c

)

I2C MSP De-Initialization This function freeze the hardware resources used in this example.

Parameters

hi2c	I2C handle pointer

Return values

None

I2C4 GPIO Configuration PD12 ------> I2C4_SCL PD13 ------> I2C4_SDA

Definition at line 238 of file stm32h7xx_hal_msp.c.

References __HAL_RCC_I2C4_CLK_DISABLE, HAL_GPIO_DeInit(), I2C4, __I2C_HandleTypeDef::Instance, SPARE_I2C_SCL_GPIO_Port, SPARE_I2C_SCL_Pin, SPARE_I2C_SDA_GPIO_Port, and SPARE_I2C_SDA_Pin.

HAL_I2C_MspInit()

void HAL_I2C_MspInit

(

I2C_HandleTypeDef *

hi2c

)

I2C MSP Initialization This function configures the hardware resources used in this example.

Parameters

hi2c	I2C handle pointer

Return values

None

Initializes the peripherals clock

I2C4 GPIO Configuration PD12 ------> I2C4_SCL PD13 ------> I2C4_SDA

Definition at line 191 of file stm32h7xx_hal_msp.c.

References __HAL_RCC_GPIOD_CLK_ENABLE, __HAL_RCC_I2C4_CLK_ENABLE, GPIO_InitTypeDef::Alternate, Error_Handler(), GPIO_AF4_I2C4, GPIO_MODE_AF_OD, GPIO_NOPULL, GPIO_SPEED_FREQ_LOW, GPIOD, HAL_GPIO_Init(), HAL_OK, HAL_RCCEx_PeriphCLKConfig(), I2C4, RCC_PeriphCLKInitTypeDef::I2c4ClockSelection, __I2C_HandleTypeDef::Instance, GPIO_InitTypeDef::Mode, RCC_PeriphCLKInitTypeDef::PeriphClockSelection, GPIO_InitTypeDef::Pin, GPIO_InitTypeDef::Pull, RCC_I2C4CLKSOURCE_D3PCLK1, RCC_PERIPHCLK_I2C4, SPARE_I2C_SCL_Pin, SPARE_I2C_SDA_Pin, and GPIO_InitTypeDef::Speed.