Internal Functions

Functions
void	I2C1_Init (void)
	I2C Bus initialization.
void	I2C1_Error (void)
	Manages error callback by re-initializing I2C.
void	I2C1_MspInit (I2C_HandleTypeDef *hi2c)
	I2C MSP Initialization.
void	I2C1_Write (uint8_t Addr, uint8_t Reg, uint8_t Value)
	Writes a single data.
uint8_t	I2C1_Read (uint8_t Addr, uint8_t Reg)
	Reads a single data.
HAL_StatusTypeDef	I2C1_WriteBuffer (uint16_t Addr, uint8_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
	Write a value in a register of the device through BUS.
HAL_StatusTypeDef	I2C1_ReadBuffer (uint16_t Addr, uint8_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
	Reads multiple data on the BUS.
HAL_StatusTypeDef	I2C1_IsDeviceReady (uint16_t DevAddress, uint32_t Trials)
	Checks if target device is ready for communication.

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Function Documentation

void I2C1_Error

(

void

)

Manages error callback by re-initializing I2C.

Return values:

None

Definition at line 352 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, and I2C1_Init().

Referenced by I2C1_Read(), I2C1_ReadBuffer(), I2C1_Write(), and I2C1_WriteBuffer().

void I2C1_Init

(

void

)

I2C Bus initialization.

Return values:

None

Definition at line 223 of file stm32l0xx_nucleo_32.c.

References BSP_I2C1, heval_I2c1, I2C1_MspInit(), and I2C1_TIMING.

Referenced by I2C1_Error().

HAL_StatusTypeDef I2C1_IsDeviceReady	(	uint16_t	DevAddress,
		uint32_t	Trials
	)

Checks if target device is ready for communication.

Note:

This function is used with Memory devices

Parameters:

DevAddress,:	Target device address
Trials,:	Number of trials

Return values:

HAL

status

Definition at line 319 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, and I2c1Timeout.

void I2C1_MspInit

(

I2C_HandleTypeDef *

hi2c

)

I2C MSP Initialization.

Parameters:

hi2c,:

I2C handle

Return values:

None

Definition at line 366 of file stm32l0xx_nucleo_32.c.

References BSP_I2C1_CLK_ENABLE, BSP_I2C1_FORCE_RESET, BSP_I2C1_GPIO_CLK_ENABLE, BSP_I2C1_GPIO_PORT, BSP_I2C1_RELEASE_RESET, BSP_I2C1_SCL_PIN, BSP_I2C1_SCL_SDA_AF, and BSP_I2C1_SDA_PIN.

Referenced by I2C1_Init().

uint8_t I2C1_Read	(	uint8_t	Addr,
		uint8_t	Reg
	)

Reads a single data.

Parameters:

Addr,:	I2C address
Reg,:	Register address

Return values:

Read

data

Definition at line 270 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, and I2C1_Error().

HAL_StatusTypeDef I2C1_ReadBuffer	(	uint16_t	Addr,
		uint8_t	Reg,
		uint16_t	RegSize,
		uint8_t *	pBuffer,
		uint16_t	Length
	)

Reads multiple data on the BUS.

Parameters:

Addr	: I2C Address
Reg	: Reg Address
RegSize	: The target register size (can be 8BIT or 16BIT)
pBuffer	: pointer to read data buffer
Length	: length of the data

Return values:

0	if no problems to read multiple data

Definition at line 297 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, I2C1_Error(), and I2c1Timeout.

void I2C1_Write	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t	Value
	)

Writes a single data.

Parameters:

Addr,:	I2C address
Reg,:	Register address
Value,:	Data to be written

Return values:

None

Definition at line 250 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, and I2C1_Error().

HAL_StatusTypeDef I2C1_WriteBuffer	(	uint16_t	Addr,
		uint8_t	Reg,
		uint16_t	RegSize,
		uint8_t *	pBuffer,
		uint16_t	Length
	)

Write a value in a register of the device through BUS.

Parameters:

Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write
RegSize,:	The target register size (can be 8BIT or 16BIT)
pBuffer,:	The target register value to be written
Length,:	buffer size to be written

Return values:

None

Definition at line 333 of file stm32l0xx_nucleo_32.c.

References heval_I2c1, I2C1_Error(), and I2c1Timeout.