Functions
static void	I2Cx_MspInit (I2C_HandleTypeDef *i2c_handler)
	Initializes I2C MSP.
static void	I2Cx_Init (I2C_HandleTypeDef *i2c_handler)
	Initializes I2C HAL.
static HAL_StatusTypeDef	I2Cx_ReadMultiple (I2C_HandleTypeDef i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t Buffer, uint16_t Length)
	Reads multiple data.
static HAL_StatusTypeDef	I2Cx_WriteMultiple (I2C_HandleTypeDef i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t Buffer, uint16_t Length)
	Writes a value in a register of the device through BUS in using DMA mode.
static HAL_StatusTypeDef	I2Cx_IsDeviceReady (I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials)
	Checks if target device is ready for communication.
static void	I2Cx_Error (I2C_HandleTypeDef *i2c_handler, uint8_t Addr)
	Manages error callback by re-initializing I2C.

Function Documentation

static void I2Cx_Error	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr
	)		`[static]`

Manages error callback by re-initializing I2C.

Parameters:

i2c_handler	: I2C handler
Addr,:	I2C Address

Return values:

None

Definition at line 533 of file stm32f769i_discovery.c.

References I2Cx_Init().

Referenced by I2Cx_ReadMultiple(), and I2Cx_WriteMultiple().

static void I2Cx_Init ( I2C_HandleTypeDef * i2c_handler ) [static]

Initializes I2C HAL.

Parameters:

i2c_handler : I2C handler

Return values:

None

Definition at line 435 of file stm32f769i_discovery.c.

References DISCOVERY_AUDIO_I2Cx, DISCOVERY_EXT_I2Cx, hI2cAudioHandler, and I2Cx_MspInit().

Referenced by AUDIO_IO_Init(), EEPROM_IO_Init(), HDMI_IO_Init(), I2Cx_Error(), and TS_IO_Init().

static HAL_StatusTypeDef I2Cx_IsDeviceReady	(	I2C_HandleTypeDef *	i2c_handler,
		uint16_t	DevAddress,
		uint32_t	Trials
	)		`[static]`

Checks if target device is ready for communication.

Note:: This function is used with Memory devices

Parameters:

i2c_handler	: I2C handler
DevAddress,:	Target device address
Trials,:	Number of trials

Return values:

HAL status

Definition at line 522 of file stm32f769i_discovery.c.

Referenced by EEPROM_IO_IsDeviceReady().

static void I2Cx_MspInit ( I2C_HandleTypeDef * i2c_handler ) [static]

Initializes I2C MSP.

Parameters:

i2c_handler : I2C handler

Return values:

None

Definition at line 350 of file stm32f769i_discovery.c.

Referenced by I2Cx_Init().

static HAL_StatusTypeDef I2Cx_ReadMultiple	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr,
		uint16_t	Reg,
		uint16_t	MemAddress,
		uint8_t *	Buffer,
		uint16_t	Length
	)		`[static]`

Reads multiple data.

Parameters:

i2c_handler	: I2C handler
Addr,:	I2C address
Reg,:	Reg address
MemAddress,:	memory address
Buffer,:	Pointer to data buffer
Length,:	Length of the data

Return values:

HAL status

Definition at line 473 of file stm32f769i_discovery.c.

References I2Cx_Error().

Referenced by AUDIO_IO_Read(), EEPROM_IO_ReadData(), HDMI_IO_Read(), TS_IO_Read(), and TS_IO_ReadMultiple().

static HAL_StatusTypeDef I2Cx_WriteMultiple	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr,
		uint16_t	Reg,
		uint16_t	MemAddress,
		uint8_t *	Buffer,
		uint16_t	Length
	)		`[static]`

Writes a value in a register of the device through BUS in using DMA mode.

Parameters:

i2c_handler	: I2C handler
Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write
MemAddress,:	memory address
Buffer,:	The target register value to be written
Length,:	buffer size to be written

Return values:

HAL status

Definition at line 499 of file stm32f769i_discovery.c.

References I2Cx_Error().

Referenced by AUDIO_IO_Write(), EEPROM_IO_WriteData(), HDMI_IO_Write(), TS_IO_Write(), and TS_IO_WriteMultiple().

STM32F769I-Discovery BSP User Manual: STM32F769I_DISCOVERY_LOW_LEVEL Private Functions

STM32F769I-Discovery BSP Drivers

Functions

Function Documentation

Get in touch