diff options
Diffstat (limited to 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c')
| -rw-r--r-- | Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c | 1316 |
1 files changed, 1316 insertions, 0 deletions
diff --git a/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c b/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c new file mode 100644 index 0000000..d9b1205 --- /dev/null +++ b/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c @@ -0,0 +1,1316 @@ +/** + ****************************************************************************** + * @file stm32l4xx_hal_flash_ex.c + * @author MCD Application Team + * @brief Extended FLASH HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the FLASH extended peripheral: + * + Extended programming operations functions + * + @verbatim + ============================================================================== + ##### Flash Extended features ##### + ============================================================================== + + [..] Comparing to other previous devices, the FLASH interface for STM32L4xx + devices contains the following additional features + + (+) Capacity up to 2 Mbyte with dual bank architecture supporting read-while-write + capability (RWW) + (+) Dual bank memory organization + (+) PCROP protection for all banks + + ##### How to use this driver ##### + ============================================================================== + [..] This driver provides functions to configure and program the FLASH memory + of all STM32L4xx devices. It includes + (#) Flash Memory Erase functions: + (++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and + HAL_FLASH_Lock() functions + (++) Erase function: Erase page, erase all sectors + (++) There are two modes of erase : + (+++) Polling Mode using HAL_FLASHEx_Erase() + (+++) Interrupt Mode using HAL_FLASHEx_Erase_IT() + + (#) Option Bytes Programming function: Use HAL_FLASHEx_OBProgram() to : + (++) Set/Reset the write protection + (++) Set the Read protection Level + (++) Program the user Option Bytes + (++) Configure the PCROP protection + + (#) Get Option Bytes Configuration function: Use HAL_FLASHEx_OBGetConfig() to : + (++) Get the value of a write protection area + (++) Know if the read protection is activated + (++) Get the value of the user Option Bytes + (++) Get the value of a PCROP area + + @endverbatim + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file in + * the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l4xx_hal.h" + +/** @addtogroup STM32L4xx_HAL_Driver + * @{ + */ + +/** @defgroup FLASHEx FLASHEx + * @brief FLASH Extended HAL module driver + * @{ + */ + +#ifdef HAL_FLASH_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup FLASHEx_Private_Functions FLASHEx Private Functions + * @{ + */ +static void FLASH_MassErase(uint32_t Banks); +static HAL_StatusTypeDef FLASH_OB_WRPConfig(uint32_t WRPArea, uint32_t WRPStartOffset, uint32_t WRDPEndOffset); +static HAL_StatusTypeDef FLASH_OB_RDPConfig(uint32_t RDPLevel); +static HAL_StatusTypeDef FLASH_OB_UserConfig(uint32_t UserType, uint32_t UserConfig); +static HAL_StatusTypeDef FLASH_OB_PCROPConfig(uint32_t PCROPConfig, uint32_t PCROPStartAddr, uint32_t PCROPEndAddr); +static void FLASH_OB_GetWRP(uint32_t WRPArea, uint32_t * WRPStartOffset, uint32_t * WRDPEndOffset); +static uint32_t FLASH_OB_GetRDP(void); +static uint32_t FLASH_OB_GetUser(void); +static void FLASH_OB_GetPCROP(uint32_t * PCROPConfig, uint32_t * PCROPStartAddr, uint32_t * PCROPEndAddr); +/** + * @} + */ + +/* Exported functions -------------------------------------------------------*/ +/** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions + * @{ + */ + +/** @defgroup FLASHEx_Exported_Functions_Group1 Extended IO operation functions + * @brief Extended IO operation functions + * +@verbatim + =============================================================================== + ##### Extended programming operation functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to manage the Extended FLASH + programming operations Operations. + +@endverbatim + * @{ + */ +/** + * @brief Perform a mass erase or erase the specified FLASH memory pages. + * @param[in] pEraseInit: pointer to an FLASH_EraseInitTypeDef structure that + * contains the configuration information for the erasing. + * + * @param[out] PageError : pointer to variable that contains the configuration + * information on faulty page in case of error (0xFFFFFFFF means that all + * the pages have been correctly erased) + * + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *PageError) +{ + HAL_StatusTypeDef status; + uint32_t page_index; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if (status == HAL_OK) + { + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Deactivate the cache if they are activated to avoid data misbehavior */ + if(READ_BIT(FLASH->ACR, FLASH_ACR_ICEN) != 0U) + { + if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != 0U) + { + /* Disable data cache */ + __HAL_FLASH_DATA_CACHE_DISABLE(); + pFlash.CacheToReactivate = FLASH_CACHE_ICACHE_DCACHE_ENABLED; + } + else + { + pFlash.CacheToReactivate = FLASH_CACHE_ICACHE_ENABLED; + } + } + else if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != 0U) + { + /* Disable data cache */ + __HAL_FLASH_DATA_CACHE_DISABLE(); + pFlash.CacheToReactivate = FLASH_CACHE_DCACHE_ENABLED; + } + else + { + pFlash.CacheToReactivate = FLASH_CACHE_DISABLED; + } + + if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE) + { + /* Mass erase to be done */ + FLASH_MassErase(pEraseInit->Banks); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + /* If the erase operation is completed, disable the MER1 and MER2 Bits */ + CLEAR_BIT(FLASH->CR, (FLASH_CR_MER1 | FLASH_CR_MER2)); +#else + /* If the erase operation is completed, disable the MER1 Bit */ + CLEAR_BIT(FLASH->CR, (FLASH_CR_MER1)); +#endif + } + else + { + /*Initialization of PageError variable*/ + *PageError = 0xFFFFFFFFU; + + for(page_index = pEraseInit->Page; page_index < (pEraseInit->Page + pEraseInit->NbPages); page_index++) + { + FLASH_PageErase(page_index, pEraseInit->Banks); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the erase operation is completed, disable the PER Bit */ + CLEAR_BIT(FLASH->CR, (FLASH_CR_PER | FLASH_CR_PNB)); + + if (status != HAL_OK) + { + /* In case of error, stop erase procedure and return the faulty address */ + *PageError = page_index; + break; + } + } + } + + /* Flush the caches to be sure of the data consistency */ + FLASH_FlushCaches(); + } + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + return status; +} + +/** + * @brief Perform a mass erase or erase the specified FLASH memory pages with interrupt enabled. + * @param pEraseInit pointer to an FLASH_EraseInitTypeDef structure that + * contains the configuration information for the erasing. + * + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); + + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Deactivate the cache if they are activated to avoid data misbehavior */ + if(READ_BIT(FLASH->ACR, FLASH_ACR_ICEN) != 0U) + { + if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != 0U) + { + /* Disable data cache */ + __HAL_FLASH_DATA_CACHE_DISABLE(); + pFlash.CacheToReactivate = FLASH_CACHE_ICACHE_DCACHE_ENABLED; + } + else + { + pFlash.CacheToReactivate = FLASH_CACHE_ICACHE_ENABLED; + } + } + else if(READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) != 0U) + { + /* Disable data cache */ + __HAL_FLASH_DATA_CACHE_DISABLE(); + pFlash.CacheToReactivate = FLASH_CACHE_DCACHE_ENABLED; + } + else + { + pFlash.CacheToReactivate = FLASH_CACHE_DISABLED; + } + + /* Enable End of Operation and Error interrupts */ + __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR); + + pFlash.Bank = pEraseInit->Banks; + + if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE) + { + /* Mass erase to be done */ + pFlash.ProcedureOnGoing = FLASH_PROC_MASS_ERASE; + FLASH_MassErase(pEraseInit->Banks); + } + else + { + /* Erase by page to be done */ + pFlash.ProcedureOnGoing = FLASH_PROC_PAGE_ERASE; + pFlash.NbPagesToErase = pEraseInit->NbPages; + pFlash.Page = pEraseInit->Page; + + /*Erase 1st page and wait for IT */ + FLASH_PageErase(pEraseInit->Page, pEraseInit->Banks); + } + + return status; +} + +/** + * @brief Program Option bytes. + * @param pOBInit pointer to an FLASH_OBInitStruct structure that + * contains the configuration information for the programming. + * + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_OPTIONBYTE(pOBInit->OptionType)); + + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Write protection configuration */ + if((pOBInit->OptionType & OPTIONBYTE_WRP) != 0U) + { + /* Configure of Write protection on the selected area */ + if(FLASH_OB_WRPConfig(pOBInit->WRPArea, pOBInit->WRPStartOffset, pOBInit->WRPEndOffset) != HAL_OK) + { + status = HAL_ERROR; + } + + } + + /* Read protection configuration */ + if((pOBInit->OptionType & OPTIONBYTE_RDP) != 0U) + { + /* Configure the Read protection level */ + if(FLASH_OB_RDPConfig(pOBInit->RDPLevel) != HAL_OK) + { + status = HAL_ERROR; + } + } + + /* User Configuration */ + if((pOBInit->OptionType & OPTIONBYTE_USER) != 0U) + { + /* Configure the user option bytes */ + if(FLASH_OB_UserConfig(pOBInit->USERType, pOBInit->USERConfig) != HAL_OK) + { + status = HAL_ERROR; + } + } + + /* PCROP Configuration */ + if((pOBInit->OptionType & OPTIONBYTE_PCROP) != 0U) + { + if (pOBInit->PCROPStartAddr != pOBInit->PCROPEndAddr) + { + /* Configure the Proprietary code readout protection */ + if(FLASH_OB_PCROPConfig(pOBInit->PCROPConfig, pOBInit->PCROPStartAddr, pOBInit->PCROPEndAddr) != HAL_OK) + { + status = HAL_ERROR; + } + } + } + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + return status; +} + +/** + * @brief Get the Option bytes configuration. + * @param pOBInit pointer to an FLASH_OBInitStruct structure that contains the + * configuration information. + * @note The fields pOBInit->WRPArea and pOBInit->PCROPConfig should indicate + * which area is requested for the WRP and PCROP, else no information will be returned + * + * @retval None + */ +void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit) +{ + pOBInit->OptionType = (OPTIONBYTE_RDP | OPTIONBYTE_USER); + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if((pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAA) || (pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAB) || + (pOBInit->WRPArea == OB_WRPAREA_BANK2_AREAA) || (pOBInit->WRPArea == OB_WRPAREA_BANK2_AREAB)) +#else + if((pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAA) || (pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAB)) +#endif + { + pOBInit->OptionType |= OPTIONBYTE_WRP; + /* Get write protection on the selected area */ + FLASH_OB_GetWRP(pOBInit->WRPArea, &(pOBInit->WRPStartOffset), &(pOBInit->WRPEndOffset)); + } + + /* Get Read protection level */ + pOBInit->RDPLevel = FLASH_OB_GetRDP(); + + /* Get the user option bytes */ + pOBInit->USERConfig = FLASH_OB_GetUser(); + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if((pOBInit->PCROPConfig == FLASH_BANK_1) || (pOBInit->PCROPConfig == FLASH_BANK_2)) +#else + if(pOBInit->PCROPConfig == FLASH_BANK_1) +#endif + { + pOBInit->OptionType |= OPTIONBYTE_PCROP; + /* Get the Proprietary code readout protection */ + FLASH_OB_GetPCROP(&(pOBInit->PCROPConfig), &(pOBInit->PCROPStartAddr), &(pOBInit->PCROPEndAddr)); + } +} + +/** + * @} + */ + +#if defined (FLASH_CFGR_LVEN) +/** @defgroup FLASHEx_Exported_Functions_Group2 Extended specific configuration functions + * @brief Extended specific configuration functions + * +@verbatim + =============================================================================== + ##### Extended specific configuration functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to manage the Extended FLASH + specific configurations. + +@endverbatim + * @{ + */ + +/** + * @brief Configuration of the LVE pin of the Flash (managed by power controller + * or forced to low in order to use an external SMPS) + * @param ConfigLVE Configuration of the LVE pin, + * This parameter can be one of the following values: + * @arg FLASH_LVE_PIN_CTRL: LVE FLASH pin controlled by power controller + * @arg FLASH_LVE_PIN_FORCED: LVE FLASH pin enforced to low (external SMPS used) + * + * @note Before enforcing the LVE pin to low, the SOC should be in low voltage + * range 2 and the voltage VDD12 should be higher than 1.08V and SMPS is ON. + * + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASHEx_ConfigLVEPin(uint32_t ConfigLVE) +{ + HAL_StatusTypeDef status; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_FLASH_LVE_PIN(ConfigLVE)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if (status == HAL_OK) + { + /* Check that the voltage scaling is range 2 */ + if (HAL_PWREx_GetVoltageRange() == PWR_REGULATOR_VOLTAGE_SCALE2) + { + /* Configure the LVEN bit */ + MODIFY_REG(FLASH->CFGR, FLASH_CFGR_LVEN, ConfigLVE); + + /* Check that the bit has been correctly configured */ + if (READ_BIT(FLASH->CFGR, FLASH_CFGR_LVEN) != ConfigLVE) + { + status = HAL_ERROR; + } + } + else + { + /* Not allow to force Flash LVE pin if not in voltage range 2 */ + status = HAL_ERROR; + } + } + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + return status; +} + +/** + * @} + */ +#endif /* FLASH_CFGR_LVEN */ + +/** + * @} + */ + +/* Private functions ---------------------------------------------------------*/ + +/** @addtogroup FLASHEx_Private_Functions + * @{ + */ +/** + * @brief Mass erase of FLASH memory. + * @param Banks Banks to be erased + * This parameter can be one of the following values: + * @arg FLASH_BANK_1: Bank1 to be erased + * @arg FLASH_BANK_2: Bank2 to be erased + * @arg FLASH_BANK_BOTH: Bank1 and Bank2 to be erased + * @retval None + */ +static void FLASH_MassErase(uint32_t Banks) +{ +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if (READ_BIT(FLASH->OPTR, FLASH_OPTR_DBANK) != 0U) +#endif + { + /* Check the parameters */ + assert_param(IS_FLASH_BANK(Banks)); + + /* Set the Mass Erase Bit for the bank 1 if requested */ + if((Banks & FLASH_BANK_1) != 0U) + { + SET_BIT(FLASH->CR, FLASH_CR_MER1); + } + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + /* Set the Mass Erase Bit for the bank 2 if requested */ + if((Banks & FLASH_BANK_2) != 0U) + { + SET_BIT(FLASH->CR, FLASH_CR_MER2); + } +#endif + } +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + else + { + SET_BIT(FLASH->CR, (FLASH_CR_MER1 | FLASH_CR_MER2)); + } +#endif + + /* Proceed to erase all sectors */ + SET_BIT(FLASH->CR, FLASH_CR_STRT); +} + +/** + * @brief Erase the specified FLASH memory page. + * @param Page FLASH page to erase + * This parameter must be a value between 0 and (max number of pages in the bank - 1) + * @param Banks Bank(s) where the page will be erased + * This parameter can be one of the following values: + * @arg FLASH_BANK_1: Page in bank 1 to be erased + * @arg FLASH_BANK_2: Page in bank 2 to be erased + * @retval None + */ +void FLASH_PageErase(uint32_t Page, uint32_t Banks) +{ + /* Check the parameters */ + assert_param(IS_FLASH_PAGE(Page)); + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if(READ_BIT(FLASH->OPTR, FLASH_OPTR_DBANK) == 0U) + { + CLEAR_BIT(FLASH->CR, FLASH_CR_BKER); + } + else +#endif + { + assert_param(IS_FLASH_BANK_EXCLUSIVE(Banks)); + + if((Banks & FLASH_BANK_1) != 0U) + { + CLEAR_BIT(FLASH->CR, FLASH_CR_BKER); + } + else + { + SET_BIT(FLASH->CR, FLASH_CR_BKER); + } + } +#else + /* Prevent unused argument(s) compilation warning */ + UNUSED(Banks); +#endif + + /* Proceed to erase the page */ + MODIFY_REG(FLASH->CR, FLASH_CR_PNB, ((Page & 0xFFU) << FLASH_CR_PNB_Pos)); + SET_BIT(FLASH->CR, FLASH_CR_PER); + SET_BIT(FLASH->CR, FLASH_CR_STRT); +} + +/** + * @brief Flush the instruction and data caches. + * @retval None + */ +void FLASH_FlushCaches(void) +{ + FLASH_CacheTypeDef cache = pFlash.CacheToReactivate; + + /* Flush instruction cache */ + if((cache == FLASH_CACHE_ICACHE_ENABLED) || + (cache == FLASH_CACHE_ICACHE_DCACHE_ENABLED)) + { + /* Disable instruction cache */ + __HAL_FLASH_INSTRUCTION_CACHE_DISABLE(); + /* Reset instruction cache */ + __HAL_FLASH_INSTRUCTION_CACHE_RESET(); + /* Enable instruction cache */ + __HAL_FLASH_INSTRUCTION_CACHE_ENABLE(); + } + + /* Flush data cache */ + if((cache == FLASH_CACHE_DCACHE_ENABLED) || + (cache == FLASH_CACHE_ICACHE_DCACHE_ENABLED)) + { + /* Reset data cache */ + __HAL_FLASH_DATA_CACHE_RESET(); + /* Enable data cache */ + __HAL_FLASH_DATA_CACHE_ENABLE(); + } + + /* Reset internal variable */ + pFlash.CacheToReactivate = FLASH_CACHE_DISABLED; +} + +/** + * @brief Configure the write protection of the desired pages. + * + * @note When the memory read protection level is selected (RDP level = 1), + * it is not possible to program or erase Flash memory if the CPU debug + * features are connected (JTAG or single wire) or boot code is being + * executed from RAM or System flash, even if WRP is not activated. + * @note To configure the WRP options, the option lock bit OPTLOCK must be + * cleared with the call of the HAL_FLASH_OB_Unlock() function. + * @note To validate the WRP options, the option bytes must be reloaded + * through the call of the HAL_FLASH_OB_Launch() function. + * + * @param WRPArea specifies the area to be configured. + * This parameter can be one of the following values: + * @arg OB_WRPAREA_BANK1_AREAA: Flash Bank 1 Area A + * @arg OB_WRPAREA_BANK1_AREAB: Flash Bank 1 Area B + * @arg OB_WRPAREA_BANK2_AREAA: Flash Bank 2 Area A (don't apply for STM32L43x/STM32L44x devices) + * @arg OB_WRPAREA_BANK2_AREAB: Flash Bank 2 Area B (don't apply for STM32L43x/STM32L44x devices) + * + * @param WRPStartOffset specifies the start page of the write protected area + * This parameter can be page number between 0 and (max number of pages in the bank - 1) + * + * @param WRDPEndOffset specifies the end page of the write protected area + * This parameter can be page number between WRPStartOffset and (max number of pages in the bank - 1) + * + * @retval HAL Status + */ +static HAL_StatusTypeDef FLASH_OB_WRPConfig(uint32_t WRPArea, uint32_t WRPStartOffset, uint32_t WRDPEndOffset) +{ + HAL_StatusTypeDef status; + + /* Check the parameters */ + assert_param(IS_OB_WRPAREA(WRPArea)); + assert_param(IS_FLASH_PAGE(WRPStartOffset)); + assert_param(IS_FLASH_PAGE(WRDPEndOffset)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* Configure the write protected area */ + if(WRPArea == OB_WRPAREA_BANK1_AREAA) + { + MODIFY_REG(FLASH->WRP1AR, (FLASH_WRP1AR_WRP1A_STRT | FLASH_WRP1AR_WRP1A_END), + (WRPStartOffset | (WRDPEndOffset << 16))); + } + else if(WRPArea == OB_WRPAREA_BANK1_AREAB) + { + MODIFY_REG(FLASH->WRP1BR, (FLASH_WRP1BR_WRP1B_STRT | FLASH_WRP1BR_WRP1B_END), + (WRPStartOffset | (WRDPEndOffset << 16))); + } +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + else if(WRPArea == OB_WRPAREA_BANK2_AREAA) + { + MODIFY_REG(FLASH->WRP2AR, (FLASH_WRP2AR_WRP2A_STRT | FLASH_WRP2AR_WRP2A_END), + (WRPStartOffset | (WRDPEndOffset << 16))); + } + else if(WRPArea == OB_WRPAREA_BANK2_AREAB) + { + MODIFY_REG(FLASH->WRP2BR, (FLASH_WRP2BR_WRP2B_STRT | FLASH_WRP2BR_WRP2B_END), + (WRPStartOffset | (WRDPEndOffset << 16))); + } +#endif + else + { + /* Nothing to do */ + } + + /* Set OPTSTRT Bit */ + SET_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the option byte program operation is completed, disable the OPTSTRT Bit */ + CLEAR_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + } + + return status; +} + +/** + * @brief Set the read protection level. + * + * @note To configure the RDP level, the option lock bit OPTLOCK must be + * cleared with the call of the HAL_FLASH_OB_Unlock() function. + * @note To validate the RDP level, the option bytes must be reloaded + * through the call of the HAL_FLASH_OB_Launch() function. + * @note !!! Warning : When enabling OB_RDP level 2 it's no more possible + * to go back to level 1 or 0 !!! + * + * @param RDPLevel specifies the read protection level. + * This parameter can be one of the following values: + * @arg OB_RDP_LEVEL_0: No protection + * @arg OB_RDP_LEVEL_1: Read protection of the memory + * @arg OB_RDP_LEVEL_2: Full chip protection + * + * @retval HAL status + */ +static HAL_StatusTypeDef FLASH_OB_RDPConfig(uint32_t RDPLevel) +{ + HAL_StatusTypeDef status; + + /* Check the parameters */ + assert_param(IS_OB_RDP_LEVEL(RDPLevel)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* Configure the RDP level in the option bytes register */ + MODIFY_REG(FLASH->OPTR, FLASH_OPTR_RDP, RDPLevel); + + /* Set OPTSTRT Bit */ + SET_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the option byte program operation is completed, disable the OPTSTRT Bit */ + CLEAR_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + } + + return status; +} + +/** + * @brief Program the FLASH User Option Byte. + * + * @note To configure the user option bytes, the option lock bit OPTLOCK must + * be cleared with the call of the HAL_FLASH_OB_Unlock() function. + * @note To validate the user option bytes, the option bytes must be reloaded + * through the call of the HAL_FLASH_OB_Launch() function. + * + * @param UserType The FLASH User Option Bytes to be modified + * @param UserConfig The FLASH User Option Bytes values: + * BOR_LEV(Bit8-10), nRST_STOP(Bit12), nRST_STDBY(Bit13), IWDG_SW(Bit16), + * IWDG_STOP(Bit17), IWDG_STDBY(Bit18), WWDG_SW(Bit19), BFB2(Bit20), + * DUALBANK(Bit21), nBOOT1(Bit23), SRAM2_PE(Bit24) and SRAM2_RST(Bit25). + * + * @retval HAL status + */ +static HAL_StatusTypeDef FLASH_OB_UserConfig(uint32_t UserType, uint32_t UserConfig) +{ + uint32_t optr_reg_val = 0; + uint32_t optr_reg_mask = 0; + HAL_StatusTypeDef status; + + /* Check the parameters */ + assert_param(IS_OB_USER_TYPE(UserType)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + if((UserType & OB_USER_BOR_LEV) != 0U) + { + /* BOR level option byte should be modified */ + assert_param(IS_OB_USER_BOR_LEVEL(UserConfig & FLASH_OPTR_BOR_LEV)); + + /* Set value and mask for BOR level option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_BOR_LEV); + optr_reg_mask |= FLASH_OPTR_BOR_LEV; + } + + if((UserType & OB_USER_nRST_STOP) != 0U) + { + /* nRST_STOP option byte should be modified */ + assert_param(IS_OB_USER_STOP(UserConfig & FLASH_OPTR_nRST_STOP)); + + /* Set value and mask for nRST_STOP option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nRST_STOP); + optr_reg_mask |= FLASH_OPTR_nRST_STOP; + } + + if((UserType & OB_USER_nRST_STDBY) != 0U) + { + /* nRST_STDBY option byte should be modified */ + assert_param(IS_OB_USER_STANDBY(UserConfig & FLASH_OPTR_nRST_STDBY)); + + /* Set value and mask for nRST_STDBY option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nRST_STDBY); + optr_reg_mask |= FLASH_OPTR_nRST_STDBY; + } + + if((UserType & OB_USER_nRST_SHDW) != 0U) + { + /* nRST_SHDW option byte should be modified */ + assert_param(IS_OB_USER_SHUTDOWN(UserConfig & FLASH_OPTR_nRST_SHDW)); + + /* Set value and mask for nRST_SHDW option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nRST_SHDW); + optr_reg_mask |= FLASH_OPTR_nRST_SHDW; + } + + if((UserType & OB_USER_IWDG_SW) != 0U) + { + /* IWDG_SW option byte should be modified */ + assert_param(IS_OB_USER_IWDG(UserConfig & FLASH_OPTR_IWDG_SW)); + + /* Set value and mask for IWDG_SW option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_IWDG_SW); + optr_reg_mask |= FLASH_OPTR_IWDG_SW; + } + + if((UserType & OB_USER_IWDG_STOP) != 0U) + { + /* IWDG_STOP option byte should be modified */ + assert_param(IS_OB_USER_IWDG_STOP(UserConfig & FLASH_OPTR_IWDG_STOP)); + + /* Set value and mask for IWDG_STOP option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_IWDG_STOP); + optr_reg_mask |= FLASH_OPTR_IWDG_STOP; + } + + if((UserType & OB_USER_IWDG_STDBY) != 0U) + { + /* IWDG_STDBY option byte should be modified */ + assert_param(IS_OB_USER_IWDG_STDBY(UserConfig & FLASH_OPTR_IWDG_STDBY)); + + /* Set value and mask for IWDG_STDBY option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_IWDG_STDBY); + optr_reg_mask |= FLASH_OPTR_IWDG_STDBY; + } + + if((UserType & OB_USER_WWDG_SW) != 0U) + { + /* WWDG_SW option byte should be modified */ + assert_param(IS_OB_USER_WWDG(UserConfig & FLASH_OPTR_WWDG_SW)); + + /* Set value and mask for WWDG_SW option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_WWDG_SW); + optr_reg_mask |= FLASH_OPTR_WWDG_SW; + } + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if((UserType & OB_USER_BFB2) != 0U) + { + /* BFB2 option byte should be modified */ + assert_param(IS_OB_USER_BFB2(UserConfig & FLASH_OPTR_BFB2)); + + /* Set value and mask for BFB2 option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_BFB2); + optr_reg_mask |= FLASH_OPTR_BFB2; + } + + if((UserType & OB_USER_DUALBANK) != 0U) + { +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + /* DUALBANK option byte should be modified */ + assert_param(IS_OB_USER_DUALBANK(UserConfig & FLASH_OPTR_DB1M)); + + /* Set value and mask for DUALBANK option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_DB1M); + optr_reg_mask |= FLASH_OPTR_DB1M; +#else + /* DUALBANK option byte should be modified */ + assert_param(IS_OB_USER_DUALBANK(UserConfig & FLASH_OPTR_DUALBANK)); + + /* Set value and mask for DUALBANK option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_DUALBANK); + optr_reg_mask |= FLASH_OPTR_DUALBANK; +#endif + } +#endif + + if((UserType & OB_USER_nBOOT1) != 0U) + { + /* nBOOT1 option byte should be modified */ + assert_param(IS_OB_USER_BOOT1(UserConfig & FLASH_OPTR_nBOOT1)); + + /* Set value and mask for nBOOT1 option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nBOOT1); + optr_reg_mask |= FLASH_OPTR_nBOOT1; + } + + if((UserType & OB_USER_SRAM2_PE) != 0U) + { + /* SRAM2_PE option byte should be modified */ + assert_param(IS_OB_USER_SRAM2_PARITY(UserConfig & FLASH_OPTR_SRAM2_PE)); + + /* Set value and mask for SRAM2_PE option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_SRAM2_PE); + optr_reg_mask |= FLASH_OPTR_SRAM2_PE; + } + + if((UserType & OB_USER_SRAM2_RST) != 0U) + { + /* SRAM2_RST option byte should be modified */ + assert_param(IS_OB_USER_SRAM2_RST(UserConfig & FLASH_OPTR_SRAM2_RST)); + + /* Set value and mask for SRAM2_RST option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_SRAM2_RST); + optr_reg_mask |= FLASH_OPTR_SRAM2_RST; + } + +#if defined (STM32L412xx) || defined (STM32L422xx) || defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || \ + defined (STM32L442xx) || defined (STM32L443xx) || defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if((UserType & OB_USER_nSWBOOT0) != 0U) + { + /* nSWBOOT0 option byte should be modified */ + assert_param(IS_OB_USER_SWBOOT0(UserConfig & FLASH_OPTR_nSWBOOT0)); + + /* Set value and mask for nSWBOOT0 option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nSWBOOT0); + optr_reg_mask |= FLASH_OPTR_nSWBOOT0; + } + + if((UserType & OB_USER_nBOOT0) != 0U) + { + /* nBOOT0 option byte should be modified */ + assert_param(IS_OB_USER_BOOT0(UserConfig & FLASH_OPTR_nBOOT0)); + + /* Set value and mask for nBOOT0 option byte */ + optr_reg_val |= (UserConfig & FLASH_OPTR_nBOOT0); + optr_reg_mask |= FLASH_OPTR_nBOOT0; + } +#endif + + /* Configure the option bytes register */ + MODIFY_REG(FLASH->OPTR, optr_reg_mask, optr_reg_val); + + /* Set OPTSTRT Bit */ + SET_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the option byte program operation is completed, disable the OPTSTRT Bit */ + CLEAR_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + } + + return status; +} + +/** + * @brief Configure the Proprietary code readout protection of the desired addresses. + * + * @note To configure the PCROP options, the option lock bit OPTLOCK must be + * cleared with the call of the HAL_FLASH_OB_Unlock() function. + * @note To validate the PCROP options, the option bytes must be reloaded + * through the call of the HAL_FLASH_OB_Launch() function. + * + * @param PCROPConfig specifies the configuration (Bank to be configured and PCROP_RDP option). + * This parameter must be a combination of FLASH_BANK_1 or FLASH_BANK_2 + * with OB_PCROP_RDP_NOT_ERASE or OB_PCROP_RDP_ERASE + * + * @param PCROPStartAddr specifies the start address of the Proprietary code readout protection + * This parameter can be an address between begin and end of the bank + * + * @param PCROPEndAddr specifies the end address of the Proprietary code readout protection + * This parameter can be an address between PCROPStartAddr and end of the bank + * + * @retval HAL Status + */ +static HAL_StatusTypeDef FLASH_OB_PCROPConfig(uint32_t PCROPConfig, uint32_t PCROPStartAddr, uint32_t PCROPEndAddr) +{ + HAL_StatusTypeDef status; + uint32_t reg_value; + uint32_t bank1_addr; +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + uint32_t bank2_addr; +#endif + + /* Check the parameters */ + assert_param(IS_FLASH_BANK_EXCLUSIVE(PCROPConfig & FLASH_BANK_BOTH)); + assert_param(IS_OB_PCROP_RDP(PCROPConfig & FLASH_PCROP1ER_PCROP_RDP)); + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROPStartAddr)); + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROPEndAddr)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + /* Get the information about the bank swapping */ + if (READ_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE) == 0U) + { + bank1_addr = FLASH_BASE; + bank2_addr = FLASH_BASE + FLASH_BANK_SIZE; + } + else + { + bank1_addr = FLASH_BASE + FLASH_BANK_SIZE; + bank2_addr = FLASH_BASE; + } +#else + bank1_addr = FLASH_BASE; +#endif + +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if (READ_BIT(FLASH->OPTR, FLASH_OPTR_DBANK) == 0U) + { + /* Configure the Proprietary code readout protection */ + if((PCROPConfig & FLASH_BANK_BOTH) == FLASH_BANK_1) + { + reg_value = ((PCROPStartAddr - FLASH_BASE) >> 4); + MODIFY_REG(FLASH->PCROP1SR, FLASH_PCROP1SR_PCROP1_STRT, reg_value); + + reg_value = ((PCROPEndAddr - FLASH_BASE) >> 4); + MODIFY_REG(FLASH->PCROP1ER, FLASH_PCROP1ER_PCROP1_END, reg_value); + } + else if((PCROPConfig & FLASH_BANK_BOTH) == FLASH_BANK_2) + { + reg_value = ((PCROPStartAddr - FLASH_BASE) >> 4); + MODIFY_REG(FLASH->PCROP2SR, FLASH_PCROP2SR_PCROP2_STRT, reg_value); + + reg_value = ((PCROPEndAddr - FLASH_BASE) >> 4); + MODIFY_REG(FLASH->PCROP2ER, FLASH_PCROP2ER_PCROP2_END, reg_value); + } + else + { + /* Nothing to do */ + } + } + else +#endif + { + /* Configure the Proprietary code readout protection */ + if((PCROPConfig & FLASH_BANK_BOTH) == FLASH_BANK_1) + { + reg_value = ((PCROPStartAddr - bank1_addr) >> 3); + MODIFY_REG(FLASH->PCROP1SR, FLASH_PCROP1SR_PCROP1_STRT, reg_value); + + reg_value = ((PCROPEndAddr - bank1_addr) >> 3); + MODIFY_REG(FLASH->PCROP1ER, FLASH_PCROP1ER_PCROP1_END, reg_value); + } +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + else if((PCROPConfig & FLASH_BANK_BOTH) == FLASH_BANK_2) + { + reg_value = ((PCROPStartAddr - bank2_addr) >> 3); + MODIFY_REG(FLASH->PCROP2SR, FLASH_PCROP2SR_PCROP2_STRT, reg_value); + + reg_value = ((PCROPEndAddr - bank2_addr) >> 3); + MODIFY_REG(FLASH->PCROP2ER, FLASH_PCROP2ER_PCROP2_END, reg_value); + } +#endif + else + { + /* Nothing to do */ + } + } + + MODIFY_REG(FLASH->PCROP1ER, FLASH_PCROP1ER_PCROP_RDP, (PCROPConfig & FLASH_PCROP1ER_PCROP_RDP)); + + /* Set OPTSTRT Bit */ + SET_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the option byte program operation is completed, disable the OPTSTRT Bit */ + CLEAR_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + } + + return status; +} + +/** + * @brief Return the FLASH Write Protection Option Bytes value. + * + * @param[in] WRPArea: specifies the area to be returned. + * This parameter can be one of the following values: + * @arg OB_WRPAREA_BANK1_AREAA: Flash Bank 1 Area A + * @arg OB_WRPAREA_BANK1_AREAB: Flash Bank 1 Area B + * @arg OB_WRPAREA_BANK2_AREAA: Flash Bank 2 Area A (don't apply to STM32L43x/STM32L44x devices) + * @arg OB_WRPAREA_BANK2_AREAB: Flash Bank 2 Area B (don't apply to STM32L43x/STM32L44x devices) + * + * @param[out] WRPStartOffset: specifies the address where to copied the start page + * of the write protected area + * + * @param[out] WRDPEndOffset: specifies the address where to copied the end page of + * the write protected area + * + * @retval None + */ +static void FLASH_OB_GetWRP(uint32_t WRPArea, uint32_t * WRPStartOffset, uint32_t * WRDPEndOffset) +{ + /* Get the configuration of the write protected area */ + if(WRPArea == OB_WRPAREA_BANK1_AREAA) + { + *WRPStartOffset = READ_BIT(FLASH->WRP1AR, FLASH_WRP1AR_WRP1A_STRT); + *WRDPEndOffset = (READ_BIT(FLASH->WRP1AR, FLASH_WRP1AR_WRP1A_END) >> 16); + } + else if(WRPArea == OB_WRPAREA_BANK1_AREAB) + { + *WRPStartOffset = READ_BIT(FLASH->WRP1BR, FLASH_WRP1BR_WRP1B_STRT); + *WRDPEndOffset = (READ_BIT(FLASH->WRP1BR, FLASH_WRP1BR_WRP1B_END) >> 16); + } +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + else if(WRPArea == OB_WRPAREA_BANK2_AREAA) + { + *WRPStartOffset = READ_BIT(FLASH->WRP2AR, FLASH_WRP2AR_WRP2A_STRT); + *WRDPEndOffset = (READ_BIT(FLASH->WRP2AR, FLASH_WRP2AR_WRP2A_END) >> 16); + } + else if(WRPArea == OB_WRPAREA_BANK2_AREAB) + { + *WRPStartOffset = READ_BIT(FLASH->WRP2BR, FLASH_WRP2BR_WRP2B_STRT); + *WRDPEndOffset = (READ_BIT(FLASH->WRP2BR, FLASH_WRP2BR_WRP2B_END) >> 16); + } +#endif + else + { + /* Nothing to do */ + } +} + +/** + * @brief Return the FLASH Read Protection level. + * @retval FLASH ReadOut Protection Status: + * This return value can be one of the following values: + * @arg OB_RDP_LEVEL_0: No protection + * @arg OB_RDP_LEVEL_1: Read protection of the memory + * @arg OB_RDP_LEVEL_2: Full chip protection + */ +static uint32_t FLASH_OB_GetRDP(void) +{ + uint32_t rdp_level = READ_BIT(FLASH->OPTR, FLASH_OPTR_RDP); + + if ((rdp_level != OB_RDP_LEVEL_0) && (rdp_level != OB_RDP_LEVEL_2)) + { + return (OB_RDP_LEVEL_1); + } + else + { + return (READ_BIT(FLASH->OPTR, FLASH_OPTR_RDP)); + } +} + +/** + * @brief Return the FLASH User Option Byte value. + * @retval The FLASH User Option Bytes values: + * For STM32L47x/STM32L48x devices : + * BOR_LEV(Bit8-10), nRST_STOP(Bit12), nRST_STDBY(Bit13), nRST_SHDW(Bit14), + * IWDG_SW(Bit16), IWDG_STOP(Bit17), IWDG_STDBY(Bit18), WWDG_SW(Bit19), + * BFB2(Bit20), DUALBANK(Bit21), nBOOT1(Bit23), SRAM2_PE(Bit24) and SRAM2_RST(Bit25). + * For STM32L43x/STM32L44x devices : + * BOR_LEV(Bit8-10), nRST_STOP(Bit12), nRST_STDBY(Bit13), nRST_SHDW(Bit14), + * IWDG_SW(Bit16), IWDG_STOP(Bit17), IWDG_STDBY(Bit18), WWDG_SW(Bit19), + * nBOOT1(Bit23), SRAM2_PE(Bit24), SRAM2_RST(Bit25), nSWBOOT0(Bit26) and nBOOT0(Bit27). + */ +static uint32_t FLASH_OB_GetUser(void) +{ + uint32_t user_config = READ_REG(FLASH->OPTR); + CLEAR_BIT(user_config, FLASH_OPTR_RDP); + + return user_config; +} + +/** + * @brief Return the FLASH Write Protection Option Bytes value. + * + * @param PCROPConfig [inout]: specifies the configuration (Bank to be configured and PCROP_RDP option). + * This parameter must be a combination of FLASH_BANK_1 or FLASH_BANK_2 + * with OB_PCROP_RDP_NOT_ERASE or OB_PCROP_RDP_ERASE + * + * @param PCROPStartAddr [out]: specifies the address where to copied the start address + * of the Proprietary code readout protection + * + * @param PCROPEndAddr [out]: specifies the address where to copied the end address of + * the Proprietary code readout protection + * + * @retval None + */ +static void FLASH_OB_GetPCROP(uint32_t * PCROPConfig, uint32_t * PCROPStartAddr, uint32_t * PCROPEndAddr) +{ + uint32_t reg_value; + uint32_t bank1_addr; +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + uint32_t bank2_addr; +#endif + +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + /* Get the information about the bank swapping */ + if (READ_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE) == 0U) + { + bank1_addr = FLASH_BASE; + bank2_addr = FLASH_BASE + FLASH_BANK_SIZE; + } + else + { + bank1_addr = FLASH_BASE + FLASH_BANK_SIZE; + bank2_addr = FLASH_BASE; + } +#else + bank1_addr = FLASH_BASE; +#endif + +#if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + if (READ_BIT(FLASH->OPTR, FLASH_OPTR_DBANK) == 0U) + { + if(((*PCROPConfig) & FLASH_BANK_BOTH) == FLASH_BANK_1) + { + reg_value = (READ_REG(FLASH->PCROP1SR) & FLASH_PCROP1SR_PCROP1_STRT); + *PCROPStartAddr = (reg_value << 4) + FLASH_BASE; + + reg_value = (READ_REG(FLASH->PCROP1ER) & FLASH_PCROP1ER_PCROP1_END); + *PCROPEndAddr = (reg_value << 4) + FLASH_BASE + 0xFU; + } + else if(((*PCROPConfig) & FLASH_BANK_BOTH) == FLASH_BANK_2) + { + reg_value = (READ_REG(FLASH->PCROP2SR) & FLASH_PCROP2SR_PCROP2_STRT); + *PCROPStartAddr = (reg_value << 4) + FLASH_BASE; + + reg_value = (READ_REG(FLASH->PCROP2ER) & FLASH_PCROP2ER_PCROP2_END); + *PCROPEndAddr = (reg_value << 4) + FLASH_BASE + 0xFU;; + } + else + { + /* Nothing to do */ + } + } + else +#endif + { + if(((*PCROPConfig) & FLASH_BANK_BOTH) == FLASH_BANK_1) + { + reg_value = (READ_REG(FLASH->PCROP1SR) & FLASH_PCROP1SR_PCROP1_STRT); + *PCROPStartAddr = (reg_value << 3) + bank1_addr; + + reg_value = (READ_REG(FLASH->PCROP1ER) & FLASH_PCROP1ER_PCROP1_END); + *PCROPEndAddr = (reg_value << 3) + bank1_addr + 0x7U; + } +#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \ + defined (STM32L496xx) || defined (STM32L4A6xx) || \ + defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \ + defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) + else if(((*PCROPConfig) & FLASH_BANK_BOTH) == FLASH_BANK_2) + { + reg_value = (READ_REG(FLASH->PCROP2SR) & FLASH_PCROP2SR_PCROP2_STRT); + *PCROPStartAddr = (reg_value << 3) + bank2_addr; + + reg_value = (READ_REG(FLASH->PCROP2ER) & FLASH_PCROP2ER_PCROP2_END); + *PCROPEndAddr = (reg_value << 3) + bank2_addr + 0x7U; + } +#endif + else + { + /* Nothing to do */ + } + } + + *PCROPConfig |= (READ_REG(FLASH->PCROP1ER) & FLASH_PCROP1ER_PCROP_RDP); +} +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_FLASH_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + |