81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
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/**
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**************************************************************************
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* @file eeprom.h
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* @version v2.0.0
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* @date 2020-11-02
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* @brief flash eeprom libray header file
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**************************************************************************
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* Copyright notice & Disclaimer
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*
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* The software Board Support Package (BSP) that is made available to
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* download from Artery official website is the copyrighted work of Artery.
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* Artery authorizes customers to use, copy, and distribute the BSP
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* software and its related documentation for the purpose of design and
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* development in conjunction with Artery microcontrollers. Use of the
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* software is governed by this copyright notice and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
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* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
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* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
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* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
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* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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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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#ifdef __cplusplus
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extern "C" {
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#endif
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/* includes ------------------------------------------------------------------*/
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#include "at32f413.h"
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/*
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+-----------------------------------------------------+
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| EEPROM |
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+--------------------------+--------------------------+
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| PAGE 0 | PAGE 1 |
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+--------+--------+--------+--------+--------+--------+
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| | | | | | |
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| sector | sector | sector | sector | sector | sector |
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| 0 | ... | N | N + 1 | ... | N + N |
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| | | | | | |
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+--------+--------+--------+--------+--------+--------+
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*/
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/*!< user defined */
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#define EE_SECTOR_NUM ((uint32_t)1) /*!< sector number, support multiple sectors to from 1 page */
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#define EE_SECTOR_SIZE ((uint32_t)(1024 * 2)) /*!< sector size */
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/*!< user do not need to care */
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#define EE_FLASH_SIZE (*(uint16_t *)0x1FFFF7E0) /*!< at32 flash size information */
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#define EE_PAGE_SIZE ((uint32_t)(EE_SECTOR_NUM * EE_SECTOR_SIZE)) /*!< page size */
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#define EE_BASE_ADDRESS ((uint32_t)(0x08000000 + 1024 * EE_FLASH_SIZE - EE_PAGE_SIZE * 2)) /*!< eeprom base address */
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#define EE_PAGE0_ADDRESS ((uint32_t)(EE_BASE_ADDRESS)) /*!< eeprom page 0 base address */
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#define EE_PAGE1_ADDRESS ((uint32_t)(EE_PAGE0_ADDRESS + EE_PAGE_SIZE)) /*!< eeprom page 1 base address */
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#define EE_PARA_MAX_NUMBER ((uint16_t)(EE_PAGE_SIZE / 4 - 1)) /*!< maximum number of variables that can be stored */
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flash_status_type flash_ee_init (void);
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uint16_t flash_ee_data_read (uint16_t address, uint16_t* pdata);
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flash_status_type flash_ee_data_write (uint16_t address, uint16_t data);
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#ifdef __cplusplus
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}
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#endif
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#endif
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