add first rev of eeprom
and ref voltage in varhandler
This commit is contained in:
279
Middlewares/ST/EEPROM_Emul/Porting/STM32L4/flash_interface.c
Normal file
279
Middlewares/ST/EEPROM_Emul/Porting/STM32L4/flash_interface.c
Normal file
@@ -0,0 +1,279 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file EEPROM_Emul/Porting/STM32L4/flash_interface.c
|
||||
* @author MCD Application Team
|
||||
* @brief This file provides all the EEPROM emulation flash interface functions.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "eeprom_emul.h"
|
||||
#include "flash_interface.h"
|
||||
|
||||
/** @addtogroup EEPROM_Emulation
|
||||
* @{
|
||||
*/
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* Private constants ---------------------------------------------------------*/
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
#if defined(FLASH_BANK_2)
|
||||
static uint32_t GetBankNumber(uint32_t Address);
|
||||
#endif
|
||||
|
||||
/* Exported functions --------------------------------------------------------*/
|
||||
/* Private functions ---------------------------------------------------------*/
|
||||
/** @addtogroup EEPROM_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Write a double word at the given address in Flash
|
||||
* @param Address Where to write
|
||||
* @param Data What to write
|
||||
* @retval EE_Status
|
||||
* - EE_OK: on success
|
||||
* - EE_WRITE_ERROR: if an error occurs
|
||||
*/
|
||||
HAL_StatusTypeDef FI_WriteDoubleWord(uint32_t Address, uint64_t Data)
|
||||
{
|
||||
return HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, Address, Data);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Erase a page in polling mode
|
||||
* @param Page Page number
|
||||
* @param NbPages Number of pages to erase
|
||||
* @retval EE_Status
|
||||
* - EE_OK: on success
|
||||
* - EE error code: if an error occurs
|
||||
*/
|
||||
EE_Status FI_PageErase(uint32_t Page, uint16_t NbPages)
|
||||
{
|
||||
EE_Status status = EE_OK;
|
||||
FLASH_EraseInitTypeDef s_eraseinit;
|
||||
uint32_t bank = FLASH_BANK_1, page_error = 0U;
|
||||
|
||||
#if defined(FLASH_BANK_2)
|
||||
bank = GetBankNumber(PAGE_ADDRESS(Page));
|
||||
#endif
|
||||
|
||||
s_eraseinit.TypeErase = FLASH_TYPEERASE_PAGES;
|
||||
s_eraseinit.NbPages = NbPages;
|
||||
s_eraseinit.Page = Page;
|
||||
s_eraseinit.Banks = bank;
|
||||
|
||||
/* Erase the Page: Set Page status to ERASED status */
|
||||
if (HAL_FLASHEx_Erase(&s_eraseinit, &page_error) != HAL_OK)
|
||||
{
|
||||
status = EE_ERASE_ERROR;
|
||||
}
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Erase a page with interrupt enabled
|
||||
* @param Page Page number
|
||||
* @param NbPages Number of pages to erase
|
||||
* @retval EE_Status
|
||||
* - EE_OK: on success
|
||||
* - EE error code: if an error occurs
|
||||
*/
|
||||
EE_Status FI_PageErase_IT(uint32_t Page, uint16_t NbPages)
|
||||
{
|
||||
EE_Status status = EE_OK;
|
||||
FLASH_EraseInitTypeDef s_eraseinit;
|
||||
uint32_t bank = FLASH_BANK_1;
|
||||
|
||||
#if defined(FLASH_BANK_2)
|
||||
bank = GetBankNumber(PAGE_ADDRESS(Page));
|
||||
#endif
|
||||
|
||||
s_eraseinit.TypeErase = FLASH_TYPEERASE_PAGES;
|
||||
s_eraseinit.NbPages = NbPages;
|
||||
s_eraseinit.Page = Page;
|
||||
s_eraseinit.Banks = bank;
|
||||
|
||||
/* Erase the Page: Set Page status to ERASED status */
|
||||
if (HAL_FLASHEx_Erase_IT(&s_eraseinit) != HAL_OK)
|
||||
{
|
||||
status = EE_ERASE_ERROR;
|
||||
}
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Flush the caches if needed to keep coherency when the flash content is modified
|
||||
*/
|
||||
void FI_CacheFlush()
|
||||
{
|
||||
/* To keep its coherency, flush the D-Cache: its content is not updated after a flash erase. */
|
||||
__HAL_FLASH_DATA_CACHE_DISABLE();
|
||||
__HAL_FLASH_DATA_CACHE_RESET();
|
||||
__HAL_FLASH_DATA_CACHE_ENABLE();
|
||||
}
|
||||
|
||||
#if defined(FLASH_BANK_2)
|
||||
/**
|
||||
* @brief Gets the bank of a given address
|
||||
* @param Address Address of the FLASH Memory
|
||||
* @retval Bank_Number The bank of a given address
|
||||
*/
|
||||
static uint32_t GetBankNumber(uint32_t Address)
|
||||
{
|
||||
uint32_t bank = 0U;
|
||||
|
||||
if (READ_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE) == 0U)
|
||||
{
|
||||
/* No Bank swap */
|
||||
if (Address < (FLASH_BASE + FLASH_BANK_SIZE))
|
||||
{
|
||||
bank = FLASH_BANK_1;
|
||||
}
|
||||
else
|
||||
{
|
||||
bank = FLASH_BANK_2;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Bank swap */
|
||||
if (Address < (FLASH_BASE + FLASH_BANK_SIZE))
|
||||
{
|
||||
bank = FLASH_BANK_2;
|
||||
}
|
||||
else
|
||||
{
|
||||
bank = FLASH_BANK_1;
|
||||
}
|
||||
}
|
||||
|
||||
return bank;
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Delete corrupted Flash address, can be called from NMI. No Timeout.
|
||||
* @param Address Address of the FLASH Memory to delete
|
||||
* @retval EE_Status
|
||||
* - EE_OK: on success
|
||||
* - EE error code: if an error occurs
|
||||
*/
|
||||
EE_Status FI_DeleteCorruptedFlashAddress(uint32_t Address)
|
||||
{
|
||||
uint32_t dcachetoreactivate = 0U;
|
||||
EE_Status status = EE_OK;
|
||||
|
||||
/* Deactivate the data cache if they are activated to avoid data misbehavior */
|
||||
if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != RESET)
|
||||
{
|
||||
/* Disable data cache */
|
||||
__HAL_FLASH_DATA_CACHE_DISABLE();
|
||||
dcachetoreactivate = 1U;
|
||||
}
|
||||
|
||||
/* Set FLASH Programmation bit */
|
||||
SET_BIT(FLASH->CR, FLASH_CR_PG);
|
||||
|
||||
/* Program double word of value 0 */
|
||||
*(__IO uint32_t*)(Address) = (uint32_t)0U;
|
||||
*(__IO uint32_t*)(Address+4U) = (uint32_t)0U;
|
||||
|
||||
/* Wait programmation completion */
|
||||
while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY))
|
||||
{
|
||||
}
|
||||
|
||||
/* Check if error occured */
|
||||
if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) ||
|
||||
(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) ||
|
||||
(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR)))
|
||||
{
|
||||
status = EE_DELETE_ERROR;
|
||||
}
|
||||
|
||||
/* Check FLASH End of Operation flag */
|
||||
if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
|
||||
{
|
||||
/* Clear FLASH End of Operation pending bit */
|
||||
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
|
||||
}
|
||||
|
||||
/* Clear FLASH Programmation bit */
|
||||
CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
|
||||
|
||||
/* Flush the caches to be sure of the data consistency */
|
||||
if(dcachetoreactivate == 1U)
|
||||
{
|
||||
/* Reset data cache */
|
||||
__HAL_FLASH_DATA_CACHE_RESET();
|
||||
/* Enable data cache */
|
||||
__HAL_FLASH_DATA_CACHE_ENABLE();
|
||||
}
|
||||
|
||||
/* Clear FLASH ECCD bit */
|
||||
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ECCD);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Check if the configuration is 128-bits bank or 2*64-bits bank
|
||||
* @param None
|
||||
* @retval EE_Status
|
||||
* - EE_OK: on success
|
||||
* - EE error code: if an error occurs
|
||||
*/
|
||||
EE_Status FI_CheckBankConfig(void)
|
||||
{
|
||||
#if defined (FLASH_OPTR_DBANK)
|
||||
FLASH_OBProgramInitTypeDef sOBCfg;
|
||||
EE_Status status;
|
||||
|
||||
/* Request the Option Byte configuration :
|
||||
- User and RDP level are always returned
|
||||
- WRP and PCROP are not requested */
|
||||
sOBCfg.WRPArea = 0xFF;
|
||||
sOBCfg.PCROPConfig = 0xFF;
|
||||
HAL_FLASHEx_OBGetConfig(&sOBCfg);
|
||||
|
||||
/* Check the value of the DBANK user option byte */
|
||||
if ((sOBCfg.USERConfig & OB_DBANK_64_BITS) != 0)
|
||||
{
|
||||
status = EE_OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
status = EE_INVALID_BANK_CFG;
|
||||
}
|
||||
|
||||
return status;
|
||||
#else
|
||||
/* No feature 128-bits single bank, so always 64-bits dual bank */
|
||||
return EE_OK;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
Reference in New Issue
Block a user