STM324xG_EVAL BSP User Manual: stm324xg_eval_eeprom.c File Reference

This file provides a set of functions needed to manage an I2C M24C64 EEPROM memory.

Author:

MCD Application Team

Version:

V2.2.1

Date:

15-January-2016 =================================================================== Notes:

• This driver is intended for STM32F4xx families devices only.
• The I2C EEPROM memory (M24C64) is available on STM324xG-EVAL
• To use this driver you have to connect the eeprom jumper (JP24). ===================================================================

It implements a high level communication layer for read and write from/to this memory. The needed STM32F4xx hardware resources (I2C and GPIO) are defined in stm32f4xg_eval.h file, and the initialization is performed in EEPROM_IO_Init() function declared in stm32f4xg_eval.c file. You can easily tailor this driver to any other development board, by just adapting the defines for hardware resources and EEPROM_IO_Init() function.

Note:

In this driver, basic read and write functions (BSP_EEPROM_ReadBuffer() and EEPROM_WritePage()) use Polling mode to perform the data transfer to/from EEPROM memory.

+-----------------------------------------------------------------+ | Pin assignment for M24C64 EEPROM | +---------------------------------------+-----------+-------------+ | STM32F4xx I2C Pins | EEPROM | Pin | +---------------------------------------+-----------+-------------+ | . | E0 | 1 (0V) | | . | E1 | 2 (0V) | | . | E2 | 3 (0V) | | . | VSS(GND)| 4 (0V) | | SDA | SDA | 5 | | SCL | SCL | 6 | | JP24 | /WS | 7 | | . | VDD | 8 (3.3V) | +---------------------------------------+-----------+-------------+

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Definition in file stm324xg_eval_eeprom.c.