m24512.c File Reference

Implementation of M24512 EEPROM driver. More...

#include <string.h>
#include "m24512.h"
#include "no_os_alloc.h"
#include "no_os_delay.h"
#include "no_os_gpio.h"
#include "no_os_eeprom.h"

Include dependency graph for m24512.c:

Functions
int32_t	m24512_init (struct no_os_eeprom_desc **desc, const struct no_os_eeprom_init_param *param)
	Initialize the M24512 EEPROM device.
int32_t	m24512_remove (struct no_os_eeprom_desc *desc)
	Free resources allocated by M24512 device.
int32_t	m24512_read_data (struct no_os_eeprom_desc *desc, uint32_t address, uint8_t *data, uint16_t len)
	Read multiple bytes from EEPROM.
int32_t	m24512_write_data (struct no_os_eeprom_desc *desc, uint32_t address, uint8_t *data, uint16_t len)
	Write multiple bytes to EEPROM (handles page boundaries)
bool	m24512_is_ready (struct m24512_dev *dev)
	Check if EEPROM is ready (write cycle completed)
int	m24512_wait_ready (struct m24512_dev *dev, uint32_t timeout_ms)
	Wait for write cycle completion.
int	m24512_get_info (struct m24512_dev *dev, uint32_t *memory_size, uint16_t *page_size, uint16_t *num_pages)
	Get device information.

Variables
const struct no_os_eeprom_platform_ops	eeprom_m24512_ops
	M24512 EEPROM specific ops structure.

Detailed Description

Implementation of M24512 EEPROM driver.

Author

rober.nosp@m.t.bu.nosp@m.dai@a.nosp@m.nalo.nosp@m.g.com

Copyright 2025(c) Analog Devices, Inc.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG Devices, INC. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

m24512_get_info()

int m24512_get_info	(	struct m24512_dev *	dev,
		uint32_t *	memory_size,
		uint16_t *	page_size,
		uint16_t *	num_pages )

Get device information.

Parameters

dev	- Device descriptor
memory_size	- Pointer to store memory size
page_size	- Pointer to store page size
num_pages	- Pointer to store number of pages

Returns

0 in case of success, negative error code otherwise

m24512_init()

int32_t m24512_init	(	struct no_os_eeprom_desc **	desc,
		const struct no_os_eeprom_init_param *	param )

Initialize the M24512 EEPROM device.

Parameters

desc	- Pointer to device descriptor
param	- Initialization parameters

Returns

0 in case of success, negative error code otherwise

m24512_is_ready()

bool m24512_is_ready

(

struct m24512_dev *

dev

)

Check if EEPROM is ready (write cycle completed)

Parameters

dev	- Device descriptor

Returns

true if ready, false if busy

m24512_read_data()

int32_t m24512_read_data	(	struct no_os_eeprom_desc *	desc,
		uint32_t	address,
		uint8_t *	data,
		uint16_t	len )

Read multiple bytes from EEPROM.

Parameters

desc	- Device descriptor
address	- Starting memory address
data	- Buffer to store read data
len	- Number of bytes to read

Returns

0 in case of success, negative error code otherwise

m24512_remove()

int32_t m24512_remove

(

struct no_os_eeprom_desc *

desc

)

Free resources allocated by M24512 device.

Parameters

desc	- Device descriptor

Returns

0 in case of success, negative error code otherwise

m24512_wait_ready()

int m24512_wait_ready	(	struct m24512_dev *	dev,
		uint32_t	timeout_ms )

Wait for write cycle completion.

Parameters

dev	- Device descriptor
timeout_ms	- Maximum timeout in milliseconds

Returns

0 if ready, negative error code on timeout

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m24512_write_data()

int32_t m24512_write_data	(	struct no_os_eeprom_desc *	desc,
		uint32_t	address,
		uint8_t *	data,
		uint16_t	len )

Write multiple bytes to EEPROM (handles page boundaries)

Parameters

desc	- Device descriptor
address	- Starting memory address
data	- Data buffer to write
len	- Number of bytes to write

Returns

0 in case of success, negative error code otherwise

Variable Documentation

eeprom_m24512_ops

const struct no_os_eeprom_platform_ops eeprom_m24512_ops

Initial value:

= {
    .init = &m24512_init,
    .remove = &m24512_remove,
    .read = &m24512_read_data,
    .write = &m24512_write_data,
}

M24512 EEPROM specific ops structure.

M24512 EEPROM specific ops structure