Functions
static uint32_t	EEPROM_I2C_Init (void)
	Initializes peripherals used by the I2C EEPROM driver.
static uint32_t	EEPROM_I2C_ReadBuffer (uint8_t pBuffer, uint16_t ReadAddr, uint32_t NumByteToRead)
	Reads a block of data from the I2C EEPROM.
static uint32_t	EEPROM_I2C_WritePage (uint8_t pBuffer, uint16_t WriteAddr, uint32_t NumByteToWrite)
	Writes more than one byte to the EEPROM with a single WRITE cycle.
static uint32_t	EEPROM_I2C_WaitEepromStandbyState (void)
	Wait for EEPROM I2C Standby state.

Function Documentation

static uint32_t EEPROM_I2C_Init ( void ) [static]

Initializes peripherals used by the I2C EEPROM driver.

Note:: There are 2 different versions of M24LR64 (A01 & A02). Then try to connect on 1st one (EEPROM_I2C_ADDRESS_A01) and if problem, check the 2nd one (EEPROM_I2C_ADDRESS_A02)

Return values:

EEPROM_OK (0) if operation is correctly performed, else return value different from EEPROM_OK (0)

Definition at line 367 of file stm32072b_eval_eeprom.c.

static uint32_t EEPROM_I2C_ReadBuffer	(	uint8_t *	pBuffer,
		uint16_t	ReadAddr,
		uint32_t *	NumByteToRead
	)		`[static]`

Reads a block of data from the I2C EEPROM.

Parameters:

pBuffer	pointer to the buffer that receives the data read from the EEPROM.
ReadAddr	EEPROM's internal address to start reading from.
NumByteToRead	pointer to the variable holding number of bytes to be read from the EEPROM.

Return values:

EEPROM_OK (0) if operation is correctly performed, else return value different from EEPROM_OK (0) or the timeout user callback.

Definition at line 399 of file stm32072b_eval_eeprom.c.

static uint32_t EEPROM_I2C_WaitEepromStandbyState ( void ) [static]

Wait for EEPROM I2C Standby state.

Note:: This function allows to wait and check that EEPROM has finished the last operation. It is mostly used after Write operation: after receiving the buffer to be written, the EEPROM may need additional time to actually perform the write operation. During this time, it doesn't answer to I2C packets addressed to it. Once the write operation is complete the EEPROM responds to its address.

Return values:

EEPROM_OK (0) if operation is correctly performed, else return value different from EEPROM_OK (0) or the timeout user callback.

Definition at line 467 of file stm32072b_eval_eeprom.c.

static uint32_t EEPROM_I2C_WritePage	(	uint8_t *	pBuffer,
		uint16_t	WriteAddr,
		uint32_t *	NumByteToWrite
	)		`[static]`

Writes more than one byte to the EEPROM with a single WRITE cycle.

Note:: The number of bytes (combined to write start address) must not cross the EEPROM page boundary. This function can only write into the boundaries of an EEPROM page. This function doesn't check on boundaries condition (in this driver the function BSP_EEPROM_WriteBuffer() which calls EEPROM_WritePage() is responsible of checking on Page boundaries).

Parameters:

pBuffer	pointer to the buffer containing the data to be written to the EEPROM.
WriteAddr	EEPROM's internal address to write to.
NumByteToWrite	pointer to the variable holding number of bytes to be written into the EEPROM.

Note:: The variable pointed by NumByteToWrite is reset to 0 when all the data are written to the EEPROM. Application should monitor this variable in order know when the transfer is complete.

Return values:

EEPROM_OK (0) if operation is correctly performed, else return value different from EEPROM_OK (0) or the timeout user callback.

Definition at line 436 of file stm32072b_eval_eeprom.c.

STM32072B_EVAL BSP User Manual: Private Functions