at24c.c File Reference

#include <cfg/os.h>
#include <cfg/eeprom.h>
#include <sys/timer.h>
#include <sys/event.h>
#include <stdlib.h>
#include <dev/twif.h>
#include <dev/at24c.h>

Include dependency graph for at24c.c:

Functions
int	At24cRead (struct at24c *at24cs, uint8_t *buffer, uint16_t len, uint16_t addr)
	Read data from EEPROM with ACK-Polling support.
int	At24cWrite (struct at24c *at24cs, uint8_t *buffer, uint16_t len, uint16_t addr)
	Write data into eeprom memory.

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Function Documentation

int At24cRead	(	struct at24c *	at24cs,
		uint8_t *	buffer,
		uint16_t	len,
		uint16_t	addr
	)

Read data from EEPROM with ACK-Polling support.

Parameters:

at24cs	Device descriptor.
buffer	Buffer to transfer to from EEPROM.
len	Number of bytes to read.
addr	Address in EEPROM where to read from.

Returns:

0 on success or -1 in case of an error.

References at24c::ee_mutex, NutEventPost(), NutEventWait(), at24c::PageSize, printf, rc, at24c::SlaveAddress, and at24c::Timeout.

Referenced by EEInit(), and EEReadData().

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int At24cWrite	(	struct at24c *	at24cs,
		uint8_t *	buffer,
		uint16_t	len,
		uint16_t	addr
	)

Write data into eeprom memory.

Parameters:

at24cs	Device descriptor.
buffer	Buffer to transfer to EEPROM.
len	Number of bytes to write.
addr	Address in EEPROM to place data.

Returns:

0 on success or -1 in case of an error.

References at24c::ee_mutex, NutEventPost(), NutEventWait(), at24c::PageSize, printf, rc, at24c::SlaveAddress, and at24c::Timeout.

Referenced by EEWriteData().

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