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126 lines
5.6 KiB
126 lines
5.6 KiB
3 months ago
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/**
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******************************************************************************
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* @file EEPROM/EEPROM_Emulation/inc/eeprom.h
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* @author MCD Application Team
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* @brief This file contains all the functions prototypes for the EEPROM
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* emulation firmware library.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __EEPROM_H
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#define __EEPROM_H
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/* Includes ------------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* EEPROM emulation firmware error codes */
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#define HAL_OK (uint32_t)0
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#define EE_OK (uint32_t)0
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#define EE_ERROR (uint32_t)1
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#define EE_BUSY (uint32_t)2
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#define EE_TIMEOUT (uint32_t)3
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/* Define the size of the sectors to be used */
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#define PAGE_SIZE (uint32_t)0x2000 /* Page size = 8KByte */
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/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
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be done by word */
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#define VOLTAGE_RANGE (uint8_t)VOLTAGE_RANGE_3
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/* EEPROM start address in Flash */
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#define EEPROM_START_ADDRESS ((uint32_t)0x0003C000) /* EEPROM emulation start address:
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from sector2 : after 16KByte of used
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Flash memory */
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/* Pages 0 and 1 base and end addresses */
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#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x0000))
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#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))
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#define PAGE0_ID 0
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#define PAGE1_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + PAGE_SIZE))
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#define PAGE1_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (2 * PAGE_SIZE - 1)))
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#define PAGE1_ID 1
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/* Used Flash pages for EEPROM emulation */
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#define PAGE0 ((uint32_t)0x0000)
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#define PAGE1 ((uint32_t)0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
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/* No valid page define */
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#define NO_VALID_PAGE ((uint32_t)0x00AB)
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/* Page status definitions */
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#define ERASED ((uint32_t)0xFFFFFFFF) /* Page is empty */
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#define RECEIVE_DATA ((uint32_t)0xEEEEEEEE) /* Page is marked to receive data */
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//#define RECEIVE_DATA ((uint32_t)0x00000000) /* Page is marked to receive data */
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#define VALID_PAGE ((uint32_t)0x00000000) /* Page containing valid data */
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/* Valid pages in read and write defines */
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#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
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#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
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/* Page full define */
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#define PAGE_FULL ((uint8_t)0x80)
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/* Variables' number */
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//#define NB_OF_VAR ((uint8_t)0x03)
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typedef struct {
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union {
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struct {
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uint16_t index;
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uint16_t data;
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};
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uint32_t buf;
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};
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} EE_Item;
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/* Exported types ------------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions ------------------------------------------------------- */
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uint32_t EE_EraseAll();
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uint32_t EE_Init(void);
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uint32_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
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uint32_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data);
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#endif /* __EEPROM_H */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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