STM324xG EVAL EEPROM Exported Functions

Functions
uint32_t	BSP_EEPROM_Init (void)
	Initializes peripherals used by the I2C EEPROM driver.
uint32_t	BSP_EEPROM_ReadBuffer (uint8_t *pBuffer, uint16_t ReadAddr, uint16_t *NumByteToRead)
	Reads a block of data from the EEPROM.
uint32_t	BSP_EEPROM_WriteBuffer (uint8_t *pBuffer, uint16_t WriteAddr, uint16_t NumByteToWrite)
	Writes buffer of data to the I2C EEPROM.
void	BSP_EEPROM_TIMEOUT_UserCallback (void)
	Basic management of the timeout situation.
void	EEPROM_IO_Init (void)
	Initializes peripherals used by the I2C EEPROM driver.
HAL_StatusTypeDef	EEPROM_IO_WriteData (uint16_t DevAddress, uint16_t MemAddress, uint8_t *pBuffer, uint32_t BufferSize)
	Write data to I2C EEPROM driver in using DMA channel.
HAL_StatusTypeDef	EEPROM_IO_ReadData (uint16_t DevAddress, uint16_t MemAddress, uint8_t *pBuffer, uint32_t BufferSize)
	Reads data from I2C EEPROM driver in using DMA channel.
HAL_StatusTypeDef	EEPROM_IO_IsDeviceReady (uint16_t DevAddress, uint32_t Trials)
	Checks if target device is ready for communication.

---

Function Documentation

uint32_t BSP_EEPROM_Init

(

void

)

Initializes peripherals used by the I2C EEPROM driver.

Return values:

EEPROM_OK

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

Definition at line 139 of file stm324xg_eval_eeprom.c.

References EEPROM_FAIL, EEPROM_I2C_ADDRESS, EEPROM_IO_Init(), EEPROM_IO_IsDeviceReady(), EEPROM_MAX_TRIALS, and EEPROM_OK.

uint32_t BSP_EEPROM_ReadBuffer	(	uint8_t *	pBuffer,
		uint16_t	ReadAddr,
		uint16_t *	NumByteToRead
	)

Reads a block of data from the 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.

Note:

The variable pointed by NumByteToRead is reset to 0 when all the data are read from 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 167 of file stm324xg_eval_eeprom.c.

References BSP_EEPROM_TIMEOUT_UserCallback(), EEPROM_FAIL, EEPROM_I2C_ADDRESS, EEPROM_IO_ReadData(), EEPROM_OK, and EEPROMDataRead.

void BSP_EEPROM_TIMEOUT_UserCallback

(

void

)

Basic management of the timeout situation.

Definition at line 410 of file stm324xg_eval_eeprom.c.

Referenced by BSP_EEPROM_ReadBuffer(), EEPROM_WaitEepromStandbyState(), and EEPROM_WritePage().

uint32_t BSP_EEPROM_WriteBuffer	(	uint8_t *	pBuffer,
		uint16_t	WriteAddr,
		uint16_t	NumByteToWrite
	)

Writes buffer of data to the I2C EEPROM.

Parameters:

pBuffer,:	pointer to the buffer containing the data to be written to the EEPROM.
WriteAddr,:	EEPROM's internal address to write to.
NumByteToWrite,:	number of bytes to write to 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 193 of file stm324xg_eval_eeprom.c.

References EEPROM_OK, EEPROM_PAGESIZE, and EEPROM_WritePage().

void EEPROM_IO_Init

(

void

)

Initializes peripherals used by the I2C EEPROM driver.

Definition at line 1031 of file stm324xg_eval.c.

References I2Cx_Init().

Referenced by BSP_EEPROM_Init().

HAL_StatusTypeDef EEPROM_IO_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 1069 of file stm324xg_eval.c.

References I2Cx_IsDeviceReady().

Referenced by BSP_EEPROM_Init(), and EEPROM_WaitEepromStandbyState().

HAL_StatusTypeDef EEPROM_IO_ReadData	(	uint16_t	DevAddress,
		uint16_t	MemAddress,
		uint8_t *	pBuffer,
		uint32_t	BufferSize
	)

Reads data from I2C EEPROM driver in using DMA channel.

Parameters:

DevAddress,:	Target device address
MemAddress,:	Internal memory address
pBuffer,:	Pointer to data buffer
BufferSize,:	Amount of data to be read

Return values:

HAL

status

Definition at line 1057 of file stm324xg_eval.c.

References I2Cx_ReadMultiple().

Referenced by BSP_EEPROM_ReadBuffer().

HAL_StatusTypeDef EEPROM_IO_WriteData	(	uint16_t	DevAddress,
		uint16_t	MemAddress,
		uint8_t *	pBuffer,
		uint32_t	BufferSize
	)

Write data to I2C EEPROM driver in using DMA channel.

Parameters:

DevAddress,:	Target device address
MemAddress,:	Internal memory address
pBuffer,:	Pointer to data buffer
BufferSize,:	Amount of data to be sent

Return values:

HAL

status

Definition at line 1044 of file stm324xg_eval.c.

References I2Cx_WriteMultiple().

Referenced by EEPROM_WritePage().