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/**
******************************************************************************
* @file EEPROM/EEPROM_Emulation/inc/eeprom.h
* @author MCD Application Team
* @brief This file contains all the functions prototypes for the EEPROM
* emulation firmware library.
******************************************************************************
* @attention
*
* <h2><center>© Copyright � 2017 STMicroelectronics International N.V.
* All rights reserved.</center></h2>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
*
* 1. Redistribution 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 STMicroelectronics nor the names of other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific written permission.
* 4. This software, including modifications and/or derivative works of this
* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
* this license is void and will automatically terminate your rights under
* this license.
*
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
* SHALL STMICROELECTRONICS OR CONTRIBUTORS 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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __EEPROM_H
#define __EEPROM_H
/* Includes ------------------------------------------------------------------*/
#include "hal.h"
typedef enum
{
HAL_OK = 0x00U,
HAL_ERROR = 0x01U,
HAL_BUSY = 0x02U,
HAL_TIMEOUT = 0x03U
} HAL_StatusTypeDef;
/* Exported constants --------------------------------------------------------*/
/* EEPROM emulation firmware error codes */
#define EE_OK (uint32_t)HAL_OK
#define EE_ERROR (uint32_t)HAL_ERROR
#define EE_BUSY (uint32_t)HAL_BUSY
#define EE_TIMEOUT (uint32_t)HAL_TIMEOUT
/* Define the size of the sectors to be used */
#define PAGE_SIZE (uint32_t)0x4000 /* Page size = 16KByte */
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
be done by word */
#define VOLTAGE_RANGE (uint8_t)VOLTAGE_RANGE_3
/* EEPROM start address in Flash */
#define EEPROM_START_ADDRESS ((uint32_t)0x08008000) /* EEPROM emulation start address:
from sector2 : after 16KByte of used
Flash memory */
/* Pages 0 and 1 base and end addresses */
#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x0000))
#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))
#define PAGE0_ID 2//FLASH_SECTOR_2
#define PAGE1_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x4000))
#define PAGE1_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (2 * PAGE_SIZE - 1)))
#define PAGE1_ID 3//FLASH_SECTOR_3
/* Used Flash pages for EEPROM emulation */
#define PAGE0 ((uint16_t)0x0000)
#define PAGE1 ((uint16_t)0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
/* No valid page define */
#define NO_VALID_PAGE ((uint16_t)0x00AB)
/* Page status definitions */
#define ERASED ((uint16_t)0xFFFF) /* Page is empty */
#define RECEIVE_DATA ((uint16_t)0xEEEE) /* Page is marked to receive data */
#define VALID_PAGE ((uint16_t)0x0000) /* Page containing valid data */
/* Valid pages in read and write defines */
#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
/* Page full define */
#define PAGE_FULL ((uint8_t)0x80)
/* Variables' number */
#define NB_OF_VAR ((uint8_t)0x16)
/* Exported types ------------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
HAL_StatusTypeDef FLASH_UnlockF4(void);
HAL_StatusTypeDef FLASH_EraseSectorF4(uint32_t sector);
HAL_StatusTypeDef FLASH_ProgramHalfWordF4(uint32_t address, uint16_t data);
uint16_t EE_Init(void);
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data);
#define IS_FLASH_ADDRESS(ADDRESS) (((ADDRESS) >= EEPROM_START_ADDRESS) && ((ADDRESS) < PAGE1_END_ADDRESS))
#define IS_FLASH_SECTOR(SECTOR) (((SECTOR) >= PAGE0_ID) && ((SECTOR) <= PAGE1_ID))
#endif /* __EEPROM_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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