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Remove eeprom_f4 due to conflicting license
This commit is contained in:
skullY
skullydazed
parent
d9cf6c6730
commit
ce5678b819
@ -1,822 +0,0 @@
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/**
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******************************************************************************
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* @file EEPROM/EEPROM_Emulation/src/eeprom.c
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* @author MCD Application Team
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* @brief This file provides all the EEPROM emulation firmware functions.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright <EFBFBD> 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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/** @addtogroup EEPROM_Emulation
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* @{
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "eeprom_f4.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Global variable used to store variable value in read sequence */
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uint16_t DataVar = 0;
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/* Virtual address defined by the user: 0xFFFF value is prohibited */
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extern uint16_t VirtAddVarTab[NB_OF_VAR];
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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static HAL_StatusTypeDef EE_Format(void);
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static uint16_t EE_FindValidPage(uint8_t Operation);
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static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Data);
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static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data);
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static uint16_t EE_VerifyPageFullyErased(uint32_t Address);
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/**
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* @brief Restore the pages to a known good state in case of page's status
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* corruption after a power loss.
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* @param None.
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* @retval - Flash error code: on write Flash error
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* - FLASH_COMPLETE: on success
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*/
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uint16_t EE_Init(void)
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{
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uint16_t PageStatus0 = 6, PageStatus1 = 6;
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uint16_t VarIdx = 0;
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uint16_t EepromStatus = 0, ReadStatus = 0;
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int16_t x = -1;
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HAL_StatusTypeDef FlashStatus;
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FLASH_UnlockF4();
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/* Get Page0 status */
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PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
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/* Get Page1 status */
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PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
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/* Check for invalid header states and repair if necessary */
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switch (PageStatus0)
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{
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case ERASED:
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if (PageStatus1 == VALID_PAGE) /* Page0 erased, Page1 valid */
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{
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/* Erase Page0 */
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if(!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE0_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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}
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else if (PageStatus1 == RECEIVE_DATA) /* Page0 erased, Page1 receive */
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{
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/* Erase Page0 */
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if(!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE1_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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/* Mark Page1 as valid */
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FlashStatus = FLASH_ProgramHalfWordF4(PAGE1_BASE_ADDRESS, VALID_PAGE);
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/* If program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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else /* First EEPROM access (Page0&1 are erased) or invalid state -> format EEPROM */
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{
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/* Erase both Page0 and Page1 and set Page0 as valid page */
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FlashStatus = EE_Format();
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/* If erase/program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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break;
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case RECEIVE_DATA:
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if (PageStatus1 == VALID_PAGE) /* Page0 receive, Page1 valid */
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{
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/* Transfer data from Page1 to Page0 */
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for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++)
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{
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if (( *(__IO uint16_t*)(PAGE0_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
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{
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x = VarIdx;
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}
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if (VarIdx != x)
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{
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/* Read the last variables' updates */
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ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
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/* In case variable corresponding to the virtual address was found */
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if (ReadStatus != 0x1)
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{
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/* Transfer the variable to the Page0 */
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EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
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/* If program operation was failed, a Flash error code is returned */
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if (EepromStatus != HAL_OK)
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{
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return EepromStatus;
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}
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}
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}
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}
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/* Mark Page0 as valid */
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FlashStatus = FLASH_ProgramHalfWordF4(PAGE0_BASE_ADDRESS, VALID_PAGE);
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/* If program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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/* Erase Page1 */
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if(!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE1_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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}
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else if (PageStatus1 == ERASED) /* Page0 receive, Page1 erased */
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{
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/* Erase Page1 */
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if(!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE1_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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/* Mark Page0 as valid */
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FlashStatus = FLASH_ProgramHalfWordF4(PAGE0_BASE_ADDRESS, VALID_PAGE);
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/* If program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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else /* Invalid state -> format eeprom */
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{
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/* Erase both Page0 and Page1 and set Page0 as valid page */
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FlashStatus = EE_Format();
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/* If erase/program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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break;
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case VALID_PAGE:
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if (PageStatus1 == VALID_PAGE) /* Invalid state -> format eeprom */
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{
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/* Erase both Page0 and Page1 and set Page0 as valid page */
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FlashStatus = EE_Format();
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/* If erase/program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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else if (PageStatus1 == ERASED) /* Page0 valid, Page1 erased */
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{
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/* Erase Page1 */
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if(!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE1_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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}
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else /* Page0 valid, Page1 receive */
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{
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/* Transfer data from Page0 to Page1 */
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for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++)
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{
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if ((*(__IO uint16_t*)(PAGE1_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
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{
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x = VarIdx;
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}
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if (VarIdx != x)
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{
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/* Read the last variables' updates */
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ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
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/* In case variable corresponding to the virtual address was found */
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if (ReadStatus != 0x1)
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{
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/* Transfer the variable to the Page1 */
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EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
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/* If program operation was failed, a Flash error code is returned */
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if (EepromStatus != HAL_OK)
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{
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return EepromStatus;
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}
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}
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}
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}
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/* Mark Page1 as valid */
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FlashStatus = FLASH_ProgramHalfWordF4(PAGE1_BASE_ADDRESS, VALID_PAGE);
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/* If program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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/* Erase Page0 */
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if(!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS))
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{
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FlashStatus = FLASH_EraseSectorF4(PAGE0_ID);
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/* If erase operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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}
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}
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break;
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default: /* Any other state -> format eeprom */
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/* Erase both Page0 and Page1 and set Page0 as valid page */
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FlashStatus = EE_Format();
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/* If erase/program operation was failed, a Flash error code is returned */
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if (FlashStatus != HAL_OK)
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{
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return FlashStatus;
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}
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break;
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}
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return HAL_OK;
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}
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/**
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* @brief Verify if specified page is fully erased.
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* @param Address: page address
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* This parameter can be one of the following values:
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* @arg PAGE0_BASE_ADDRESS: Page0 base address
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* @arg PAGE1_BASE_ADDRESS: Page1 base address
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* @retval page fully erased status:
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* - 0: if Page not erased
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* - 1: if Page erased
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*/
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uint16_t EE_VerifyPageFullyErased(uint32_t Address)
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{
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uint32_t ReadStatus = 1;
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uint16_t AddressValue = 0x5555;
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/* Check each active page address starting from end */
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while (Address <= PAGE0_END_ADDRESS)
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{
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/* Get the current location content to be compared with virtual address */
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AddressValue = (*(__IO uint16_t*)Address);
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/* Compare the read address with the virtual address */
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if (AddressValue != ERASED)
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{
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/* In case variable value is read, reset ReadStatus flag */
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ReadStatus = 0;
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break;
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}
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/* Next address location */
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Address = Address + 4;
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}
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/* Return ReadStatus value: (0: Page not erased, 1: Sector erased) */
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return ReadStatus;
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}
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/**
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* @brief Returns the last stored variable data, if found, which correspond to
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* the passed virtual address
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* @param VirtAddress: Variable virtual address
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* @param Data: Global variable contains the read variable value
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* @retval Success or error status:
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* - 0: if variable was found
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* - 1: if the variable was not found
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* - NO_VALID_PAGE: if no valid page was found.
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*/
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uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data)
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{
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uint16_t ValidPage = PAGE0;
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uint16_t AddressValue = 0x5555, ReadStatus = 1;
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uint32_t Address = EEPROM_START_ADDRESS, PageStartAddress = EEPROM_START_ADDRESS;
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/* Get active Page for read operation */
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ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
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/* Check if there is no valid page */
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if (ValidPage == NO_VALID_PAGE)
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{
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return NO_VALID_PAGE;
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}
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/* Get the valid Page start Address */
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PageStartAddress = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
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/* Get the valid Page end Address */
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Address = (uint32_t)((EEPROM_START_ADDRESS - 2) + (uint32_t)((1 + ValidPage) * PAGE_SIZE));
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/* Check each active page address starting from end */
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while (Address > (PageStartAddress + 2))
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{
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/* Get the current location content to be compared with virtual address */
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AddressValue = (*(__IO uint16_t*)Address);
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/* Compare the read address with the virtual address */
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if (AddressValue == VirtAddress)
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{
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/* Get content of Address-2 which is variable value */
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*Data = (*(__IO uint16_t*)(Address - 2));
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/* In case variable value is read, reset ReadStatus flag */
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ReadStatus = 0;
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||||||
break;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
/* Next address location */
|
|
||||||
Address = Address - 4;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Return ReadStatus value: (0: variable exist, 1: variable doesn't exist) */
|
|
||||||
return ReadStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Writes/upadtes variable data in EEPROM.
|
|
||||||
* @param VirtAddress: Variable virtual address
|
|
||||||
* @param Data: 16 bit data to be written
|
|
||||||
* @retval Success or error status:
|
|
||||||
* - FLASH_COMPLETE: on success
|
|
||||||
* - PAGE_FULL: if valid page is full
|
|
||||||
* - NO_VALID_PAGE: if no valid page was found
|
|
||||||
* - Flash error code: on write Flash error
|
|
||||||
*/
|
|
||||||
uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data)
|
|
||||||
{
|
|
||||||
uint16_t Status = 0;
|
|
||||||
|
|
||||||
/* Write the variable virtual address and value in the EEPROM */
|
|
||||||
Status = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
|
|
||||||
|
|
||||||
/* In case the EEPROM active page is full */
|
|
||||||
if (Status == PAGE_FULL)
|
|
||||||
{
|
|
||||||
/* Perform Page transfer */
|
|
||||||
Status = EE_PageTransfer(VirtAddress, Data);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Return last operation status */
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Erases PAGE and PAGE1 and writes VALID_PAGE header to PAGE
|
|
||||||
* @param None
|
|
||||||
* @retval Status of the last operation (Flash write or erase) done during
|
|
||||||
* EEPROM formating
|
|
||||||
*/
|
|
||||||
static HAL_StatusTypeDef EE_Format(void)
|
|
||||||
{
|
|
||||||
HAL_StatusTypeDef FlashStatus = HAL_OK;
|
|
||||||
|
|
||||||
/* Erase Page0 */
|
|
||||||
if(!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS))
|
|
||||||
{
|
|
||||||
FlashStatus = FLASH_EraseSectorF4(PAGE0_ID);
|
|
||||||
/* If erase operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
/* Set Page0 as valid page: Write VALID_PAGE at Page0 base address */
|
|
||||||
FlashStatus = FLASH_ProgramHalfWordF4(PAGE0_BASE_ADDRESS, VALID_PAGE);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase Page1 */
|
|
||||||
if(!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS))
|
|
||||||
{
|
|
||||||
FlashStatus = FLASH_EraseSectorF4(PAGE1_ID);
|
|
||||||
/* If erase operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return HAL_OK;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Find valid Page for write or read operation
|
|
||||||
* @param Operation: operation to achieve on the valid page.
|
|
||||||
* This parameter can be one of the following values:
|
|
||||||
* @arg READ_FROM_VALID_PAGE: read operation from valid page
|
|
||||||
* @arg WRITE_IN_VALID_PAGE: write operation from valid page
|
|
||||||
* @retval Valid page number (PAGE or PAGE1) or NO_VALID_PAGE in case
|
|
||||||
* of no valid page was found
|
|
||||||
*/
|
|
||||||
static uint16_t EE_FindValidPage(uint8_t Operation)
|
|
||||||
{
|
|
||||||
uint16_t PageStatus0 = 6, PageStatus1 = 6;
|
|
||||||
|
|
||||||
/* Get Page0 actual status */
|
|
||||||
PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
|
|
||||||
|
|
||||||
/* Get Page1 actual status */
|
|
||||||
PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
|
|
||||||
|
|
||||||
/* Write or read operation */
|
|
||||||
switch (Operation)
|
|
||||||
{
|
|
||||||
case WRITE_IN_VALID_PAGE: /* ---- Write operation ---- */
|
|
||||||
if (PageStatus1 == VALID_PAGE)
|
|
||||||
{
|
|
||||||
/* Page0 receiving data */
|
|
||||||
if (PageStatus0 == RECEIVE_DATA)
|
|
||||||
{
|
|
||||||
return PAGE0; /* Page0 valid */
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
return PAGE1; /* Page1 valid */
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else if (PageStatus0 == VALID_PAGE)
|
|
||||||
{
|
|
||||||
/* Page1 receiving data */
|
|
||||||
if (PageStatus1 == RECEIVE_DATA)
|
|
||||||
{
|
|
||||||
return PAGE1; /* Page1 valid */
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
return PAGE0; /* Page0 valid */
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
return NO_VALID_PAGE; /* No valid Page */
|
|
||||||
}
|
|
||||||
|
|
||||||
case READ_FROM_VALID_PAGE: /* ---- Read operation ---- */
|
|
||||||
if (PageStatus0 == VALID_PAGE)
|
|
||||||
{
|
|
||||||
return PAGE0; /* Page0 valid */
|
|
||||||
}
|
|
||||||
else if (PageStatus1 == VALID_PAGE)
|
|
||||||
{
|
|
||||||
return PAGE1; /* Page1 valid */
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
return NO_VALID_PAGE ; /* No valid Page */
|
|
||||||
}
|
|
||||||
|
|
||||||
default:
|
|
||||||
return PAGE0; /* Page0 valid */
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Verify if active page is full and Writes variable in EEPROM.
|
|
||||||
* @param VirtAddress: 16 bit virtual address of the variable
|
|
||||||
* @param Data: 16 bit data to be written as variable value
|
|
||||||
* @retval Success or error status:
|
|
||||||
* - FLASH_COMPLETE: on success
|
|
||||||
* - PAGE_FULL: if valid page is full
|
|
||||||
* - NO_VALID_PAGE: if no valid page was found
|
|
||||||
* - Flash error code: on write Flash error
|
|
||||||
*/
|
|
||||||
static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Data)
|
|
||||||
{
|
|
||||||
HAL_StatusTypeDef FlashStatus = HAL_OK;
|
|
||||||
uint16_t ValidPage = PAGE0;
|
|
||||||
uint32_t Address = EEPROM_START_ADDRESS, PageEndAddress = EEPROM_START_ADDRESS+PAGE_SIZE;
|
|
||||||
|
|
||||||
/* Get valid Page for write operation */
|
|
||||||
ValidPage = EE_FindValidPage(WRITE_IN_VALID_PAGE);
|
|
||||||
|
|
||||||
/* Check if there is no valid page */
|
|
||||||
if (ValidPage == NO_VALID_PAGE)
|
|
||||||
{
|
|
||||||
return NO_VALID_PAGE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Get the valid Page start Address */
|
|
||||||
Address = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
|
|
||||||
|
|
||||||
/* Get the valid Page end Address */
|
|
||||||
PageEndAddress = (uint32_t)((EEPROM_START_ADDRESS - 1) + (uint32_t)((ValidPage + 1) * PAGE_SIZE));
|
|
||||||
|
|
||||||
/* Check each active page address starting from begining */
|
|
||||||
while (Address < PageEndAddress)
|
|
||||||
{
|
|
||||||
/* Verify if Address and Address+2 contents are 0xFFFFFFFF */
|
|
||||||
if ((*(__IO uint32_t*)Address) == 0xFFFFFFFF)
|
|
||||||
{
|
|
||||||
/* Set variable data */
|
|
||||||
FlashStatus = FLASH_ProgramHalfWordF4(Address, Data);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
/* Set variable virtual address */
|
|
||||||
FlashStatus = FLASH_ProgramHalfWordF4(Address + 2, VirtAddress);
|
|
||||||
/* Return program operation status */
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
/* Next address location */
|
|
||||||
Address = Address + 4;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Return PAGE_FULL in case the valid page is full */
|
|
||||||
return PAGE_FULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief Transfers last updated variables data from the full Page to
|
|
||||||
* an empty one.
|
|
||||||
* @param VirtAddress: 16 bit virtual address of the variable
|
|
||||||
* @param Data: 16 bit data to be written as variable value
|
|
||||||
* @retval Success or error status:
|
|
||||||
* - FLASH_COMPLETE: on success
|
|
||||||
* - PAGE_FULL: if valid page is full
|
|
||||||
* - NO_VALID_PAGE: if no valid page was found
|
|
||||||
* - Flash error code: on write Flash error
|
|
||||||
*/
|
|
||||||
static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data)
|
|
||||||
{
|
|
||||||
HAL_StatusTypeDef FlashStatus = HAL_OK;
|
|
||||||
uint32_t NewPageAddress = EEPROM_START_ADDRESS;
|
|
||||||
uint16_t OldPageId=0;
|
|
||||||
uint16_t ValidPage = PAGE0, VarIdx = 0;
|
|
||||||
uint16_t EepromStatus = 0, ReadStatus = 0;
|
|
||||||
|
|
||||||
/* Get active Page for read operation */
|
|
||||||
ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
|
|
||||||
|
|
||||||
if (ValidPage == PAGE1) /* Page1 valid */
|
|
||||||
{
|
|
||||||
/* New page address where variable will be moved to */
|
|
||||||
NewPageAddress = PAGE0_BASE_ADDRESS;
|
|
||||||
|
|
||||||
/* Old page ID where variable will be taken from */
|
|
||||||
OldPageId = PAGE1_ID;
|
|
||||||
}
|
|
||||||
else if (ValidPage == PAGE0) /* Page0 valid */
|
|
||||||
{
|
|
||||||
/* New page address where variable will be moved to */
|
|
||||||
NewPageAddress = PAGE1_BASE_ADDRESS;
|
|
||||||
|
|
||||||
/* Old page ID where variable will be taken from */
|
|
||||||
OldPageId = PAGE0_ID;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
return NO_VALID_PAGE; /* No valid Page */
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Set the new Page status to RECEIVE_DATA status */
|
|
||||||
FlashStatus = FLASH_ProgramHalfWordF4(NewPageAddress, RECEIVE_DATA);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Write the variable passed as parameter in the new active page */
|
|
||||||
EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (EepromStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return EepromStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Transfer process: transfer variables from old to the new active page */
|
|
||||||
for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++)
|
|
||||||
{
|
|
||||||
if (VirtAddVarTab[VarIdx] != VirtAddress) /* Check each variable except the one passed as parameter */
|
|
||||||
{
|
|
||||||
/* Read the other last variable updates */
|
|
||||||
ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
|
|
||||||
/* In case variable corresponding to the virtual address was found */
|
|
||||||
if (ReadStatus != 0x1)
|
|
||||||
{
|
|
||||||
/* Transfer the variable to the new active page */
|
|
||||||
EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (EepromStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return EepromStatus;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase the old Page: Set old Page status to ERASED status */
|
|
||||||
FlashStatus = FLASH_EraseSectorF4(OldPageId);
|
|
||||||
/* If erase operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Set new Page status to VALID_PAGE status */
|
|
||||||
FlashStatus = FLASH_ProgramHalfWordF4(NewPageAddress, VALID_PAGE);
|
|
||||||
/* If program operation was failed, a Flash error code is returned */
|
|
||||||
if (FlashStatus != HAL_OK)
|
|
||||||
{
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Return last operation flash status */
|
|
||||||
return FlashStatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* flash operation */
|
|
||||||
|
|
||||||
#define EraseTimeout ((uint32_t)0x00000FFF)
|
|
||||||
#define ProgramTimeout ((uint32_t)0x0000001F)
|
|
||||||
|
|
||||||
#define FLASH_PSIZE_BYTE 0
|
|
||||||
#define FLASH_PSIZE_HFWORD FLASH_CR_PSIZE_0
|
|
||||||
#define FLASH_PSIZE_WORD FLASH_CR_PSIZE_1
|
|
||||||
#define FLASH_CR_SNB_Pos 3
|
|
||||||
#define FLASH_KEY1_F4 0x45670123
|
|
||||||
#define FLASH_KEY2_F4 0xCDEF89AB
|
|
||||||
|
|
||||||
#define ASSERT(exp) (void)((0))
|
|
||||||
|
|
||||||
static void Flash_Delay(void)
|
|
||||||
{
|
|
||||||
__IO uint32_t i = 0;
|
|
||||||
for(i = 0xFF; i != 0; i--) { }
|
|
||||||
}
|
|
||||||
|
|
||||||
static HAL_StatusTypeDef FLASH_GetStatus(void)
|
|
||||||
{
|
|
||||||
if ((FLASH->SR & FLASH_SR_BSY) == FLASH_SR_BSY)
|
|
||||||
return HAL_BUSY;
|
|
||||||
|
|
||||||
if ((FLASH->SR & (FLASH_SR_PGSERR|FLASH_SR_PGPERR|FLASH_SR_PGAERR)) != 0)
|
|
||||||
return HAL_ERROR;
|
|
||||||
|
|
||||||
if ((FLASH->SR & FLASH_SR_WRPERR) != 0 )
|
|
||||||
return HAL_ERROR;
|
|
||||||
|
|
||||||
if ((FLASH->SR & FLASH_SR_SOP) != 0 )
|
|
||||||
return HAL_ERROR;
|
|
||||||
|
|
||||||
return HAL_OK;
|
|
||||||
}
|
|
||||||
|
|
||||||
static HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t timeout)
|
|
||||||
{
|
|
||||||
/* Check for the Flash Status */
|
|
||||||
HAL_StatusTypeDef status = FLASH_GetStatus();
|
|
||||||
/* Wait for a Flash operation to complete or a TIMEOUT to occur */
|
|
||||||
while ((status == HAL_BUSY) && (timeout != 0x00))
|
|
||||||
{
|
|
||||||
Flash_Delay();
|
|
||||||
status = FLASH_GetStatus();
|
|
||||||
timeout--;
|
|
||||||
}
|
|
||||||
if (timeout == 0)
|
|
||||||
status = HAL_TIMEOUT;
|
|
||||||
|
|
||||||
return status;
|
|
||||||
}
|
|
||||||
HAL_StatusTypeDef FLASH_UnlockF4(void)
|
|
||||||
{
|
|
||||||
FLASH->KEYR = FLASH_KEY1_F4;
|
|
||||||
FLASH->KEYR = FLASH_KEY2_F4;
|
|
||||||
return HAL_OK;
|
|
||||||
}
|
|
||||||
|
|
||||||
HAL_StatusTypeDef FLASH_EraseSectorF4(uint32_t sector)
|
|
||||||
{
|
|
||||||
HAL_StatusTypeDef status = HAL_OK;
|
|
||||||
/* Wait for last operation to be completed */
|
|
||||||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
|
||||||
|
|
||||||
if(status == HAL_OK) {
|
|
||||||
/* if the previous operation is completed, proceed to erase the page */
|
|
||||||
CLEAR_BIT(FLASH->CR, FLASH_CR_PSIZE);
|
|
||||||
FLASH->CR |= FLASH_PSIZE_WORD;
|
|
||||||
CLEAR_BIT(FLASH->CR, FLASH_CR_SNB);
|
|
||||||
FLASH->CR |= FLASH_CR_SER | (sector << FLASH_CR_SNB_Pos);
|
|
||||||
FLASH->CR |= FLASH_CR_STRT;
|
|
||||||
|
|
||||||
/* Wait for last operation to be completed */
|
|
||||||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
|
||||||
if(status != HAL_TIMEOUT)
|
|
||||||
{
|
|
||||||
/* if the erase operation is completed, disable the PER Bit */
|
|
||||||
FLASH->CR &= ~FLASH_CR_SNB;
|
|
||||||
FLASH->CR &= ~FLASH_CR_SER;
|
|
||||||
}
|
|
||||||
|
|
||||||
FLASH->SR = (FLASH_SR_EOP | FLASH_SR_SOP | FLASH_SR_WRPERR);
|
|
||||||
}
|
|
||||||
/* Return the Erase Status */
|
|
||||||
return status;
|
|
||||||
}
|
|
||||||
|
|
||||||
HAL_StatusTypeDef FLASH_ProgramHalfWordF4(uint32_t address, uint16_t data)
|
|
||||||
{
|
|
||||||
HAL_StatusTypeDef status = HAL_ERROR;
|
|
||||||
|
|
||||||
if (IS_FLASH_ADDRESS(address))
|
|
||||||
{
|
|
||||||
/* Wait for last operation to be completed */
|
|
||||||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
|
||||||
if(status == HAL_OK) {
|
|
||||||
// set size to byte
|
|
||||||
FLASH->CR &= ~FLASH_CR_PSIZE;
|
|
||||||
FLASH->CR |= FLASH_PSIZE_HFWORD;
|
|
||||||
FLASH->CR |= FLASH_CR_PG;
|
|
||||||
|
|
||||||
*(__IO uint16_t*)address = data;
|
|
||||||
/* Wait for last operation to be completed */
|
|
||||||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
|
||||||
if(status != HAL_TIMEOUT)
|
|
||||||
{
|
|
||||||
/* if the program operation is completed, disable the PG Bit */
|
|
||||||
FLASH->CR &= ~FLASH_CR_PG;
|
|
||||||
}
|
|
||||||
FLASH->SR = (FLASH_SR_EOP | FLASH_SR_SOP | FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR | FLASH_SR_WRPERR);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return status;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @}
|
|
||||||
*/
|
|
||||||
|
|
||||||
/******************* (C) COPYRIGHT 2017 STMicroelectronics *****END OF FILE****/
|
|
||||||
@ -1,130 +0,0 @@
|
|||||||
/**
|
|
||||||
******************************************************************************
|
|
||||||
* @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 <EFBFBD> 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****/
|
|
||||||
@ -53,5 +53,4 @@ RGBLIGHT_CUSTOM_DRIVER = yes
|
|||||||
# project specific files
|
# project specific files
|
||||||
SRC += \
|
SRC += \
|
||||||
matrix.c \
|
matrix.c \
|
||||||
ws2812_f4.c \
|
ws2812_f4.c
|
||||||
eeprom_f4.c
|
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user