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Diffstat (limited to 'firmware/rf test/Drivers/STM32WBxx_HAL_Driver/Src/stm32wbxx_hal_flash_ex.c')
| -rw-r--r-- | firmware/rf test/Drivers/STM32WBxx_HAL_Driver/Src/stm32wbxx_hal_flash_ex.c | 1061 |
1 files changed, 1061 insertions, 0 deletions
diff --git a/firmware/rf test/Drivers/STM32WBxx_HAL_Driver/Src/stm32wbxx_hal_flash_ex.c b/firmware/rf test/Drivers/STM32WBxx_HAL_Driver/Src/stm32wbxx_hal_flash_ex.c new file mode 100644 index 0000000..e54df67 --- /dev/null +++ b/firmware/rf test/Drivers/STM32WBxx_HAL_Driver/Src/stm32wbxx_hal_flash_ex.c @@ -0,0 +1,1061 @@ +/** + ****************************************************************************** + * @file stm32wbxx_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 + ****************************************************************************** + * @attention + * + * Copyright (c) 2019 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. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### Flash Extended features ##### + ============================================================================== + + [..] Comparing to other previous devices, the FLASH interface for STM32WBxx + devices contains the following additional features + + (+) Capacity up to 1 Mbyte with single bank architecture supporting read-while-write + capability (RWW) + (+) Single bank memory organization + (+) PCROP protection + (+) WRP protection + (+) CPU2 Security area + (+) Program Erase Suspend feature + + ##### How to use this driver ##### + ============================================================================== + [..] This driver provides functions to configure and program the FLASH memory + of all STM32WBxx 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 (per 4 KByte) + (++) Set the Read protection Level + (++) Program the user Option Bytes + (++) Configure the PCROP protection (per 2 KByte) + (++) Configure the IPCC Buffer start Address + (++) Configure the CPU2 boot region and reset vector start Address + (++) Configure the Flash and SRAM2 secure area + + (#) 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 + (++) Get the IPCC Buffer start Address + (++) Get the CPU2 boot region and reset vector start Address + (++) Get the Flash and SRAM2 secure area + + (#) Flash Suspend, Allow functions: + (++) Suspend or Allow new program or erase operation request using HAL_FLASHEx_SuspendOperation() and + HAL_FLASHEx_AllowOperation() functions + + (#) Check is flash content is empty or not using HAL_FLASHEx_FlashEmptyCheck(). + and modify this setting (for flash loader purpose e.g.) using + HAL_FLASHEx_ForceFlashEmpty(). + + @endverbatim + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32wbxx_hal.h" + +/** @addtogroup STM32WBxx_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_AcknowledgePageErase(void); +static void FLASH_FlushCaches(void); +static void FLASH_OB_WRPConfig(uint32_t WRPArea, uint32_t WRPStartOffset, uint32_t WRDPEndOffset); +static void FLASH_OB_OptrConfig(uint32_t UserType, uint32_t UserConfig, uint32_t RDPLevel); +static void FLASH_OB_PCROP1AConfig(uint32_t PCROPConfig, uint32_t PCROP1AStartAddr, + uint32_t PCROP1AEndAddr); +static void FLASH_OB_PCROP1BConfig(uint32_t PCROP1BStartAddr, uint32_t PCROP1BEndAddr); +static void FLASH_OB_IPCCBufferAddrConfig(uint32_t IPCCDataBufAddr); +static void FLASH_OB_SecureConfig(FLASH_OBProgramInitTypeDef *pOBParam); +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 *PCROP1AStartAddr, uint32_t *PCROP1AEndAddr, + uint32_t *PCROP1BStartAddr, uint32_t *PCROP1BEndAddr); +static uint32_t FLASH_OB_GetIPCCBufferAddr(void); +static void FLASH_OB_GetSecureMemoryConfig(uint32_t *SecureFlashStartAddr, uint32_t *SecureRAM2aStartAddr, + uint32_t *SecureRAM2bStartAddr, uint32_t *SecureMode); +static void FLASH_OB_GetC2BootResetConfig(uint32_t *C2BootResetVectAddr, uint32_t *C2BootResetRegion); +static HAL_StatusTypeDef FLASH_OB_ProceedWriteOperation(void); +/** + * @} + */ + +/* Exported functions -------------------------------------------------------*/ +/** @defgroup FLASHEx_Exported_Functions FLASH Extended 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 an erase of the specified FLASH memory pages. + * @note Before any operation, it is possible to check there is no operation suspended + * by call HAL_FLASHEx_IsOperationSuspended() + * @param[in] pEraseInit Pointer to an @ref 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 index; + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Reset error code */ + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Verify that next operation can be proceed */ + status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if (status == HAL_OK) + { + if (pEraseInit->TypeErase == FLASH_TYPEERASE_PAGES) + { + /*Initialization of PageError variable*/ + *PageError = 0xFFFFFFFFU; + + for (index = pEraseInit->Page; index < (pEraseInit->Page + pEraseInit->NbPages); index++) + { + /* Start erase page */ + FLASH_PageErase(index); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if (status != HAL_OK) + { + /* In case of error, stop erase procedure and return the faulty address */ + *PageError = index; + break; + } + } + + /* If operation is completed or interrupted, disable the Page Erase Bit */ + FLASH_AcknowledgePageErase(); + } + + /* Flush the caches to be sure of the data consistency */ + FLASH_FlushCaches(); + } + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + return status; +} + +/** + * @brief Perform an erase of the specified FLASH memory pages with interrupt enabled. + * @note Before any operation, it is possible to check there is no operation suspended + * by call HAL_FLASHEx_IsOperationSuspended() + * @param pEraseInit Pointer to an @ref 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; + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Reset error code */ + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* save procedure for interrupt treatment */ + pFlash.ProcedureOnGoing = pEraseInit->TypeErase; + + /* Verify that next operation can be proceed */ + status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if (status != HAL_OK) + { + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + } + else + { + /* Enable End of Operation and Error interrupts */ + __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR); + + if (pEraseInit->TypeErase == FLASH_TYPEERASE_PAGES) + { + /* Erase by page to be done */ + pFlash.NbPagesToErase = pEraseInit->NbPages; + pFlash.Page = pEraseInit->Page; + + /*Erase 1st page and wait for IT */ + FLASH_PageErase(pEraseInit->Page); + } + } + + /* return status */ + return status; +} + +/** + * @brief Program Option bytes. + * @param pOBInit Pointer to an @ref FLASH_OBProgramInitTypeDef structure that + * contains the configuration information for the programming. + * @note To configure any option bytes, the option lock bit OPTLOCK must be + * cleared with the call of @ref HAL_FLASH_OB_Unlock() function. + * @note New option bytes configuration will be taken into account only + * - after an option bytes launch through the call of @ref HAL_FLASH_OB_Launch() + * - a Power On Reset + * - an exit from Standby or Shutdown mode. + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit) +{ + uint32_t optr; + HAL_StatusTypeDef status; + + /* Check the parameters */ + assert_param(IS_OPTIONBYTE(pOBInit->OptionType)); + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Write protection configuration */ + if ((pOBInit->OptionType & OPTIONBYTE_WRP) != 0U) + { + /* Configure of Write protection on the selected area */ + FLASH_OB_WRPConfig(pOBInit->WRPArea, pOBInit->WRPStartOffset, pOBInit->WRPEndOffset); + } + + /* Option register */ + if ((pOBInit->OptionType & (OPTIONBYTE_RDP | OPTIONBYTE_USER)) == (OPTIONBYTE_RDP | OPTIONBYTE_USER)) + { + /* Fully modify OPTR register with RDP & user data */ + FLASH_OB_OptrConfig(pOBInit->UserType, pOBInit->UserConfig, pOBInit->RDPLevel); + } + else if ((pOBInit->OptionType & OPTIONBYTE_RDP) != 0U) + { + /* Only modify RDP so get current user data */ + optr = FLASH_OB_GetUser(); + + /* Remove BOR LEVEL User Type*/ + optr &= ~OB_USER_BOR_LEV; + + FLASH_OB_OptrConfig(optr, optr, pOBInit->RDPLevel); + } + else if ((pOBInit->OptionType & OPTIONBYTE_USER) != 0U) + { + /* Only modify user so get current RDP level */ + optr = FLASH_OB_GetRDP(); + FLASH_OB_OptrConfig(pOBInit->UserType, pOBInit->UserConfig, optr); + } + else + { + /* Do Nothing */ + } + + /* PCROP Configuration */ + if ((pOBInit->OptionType & OPTIONBYTE_PCROP) != 0U) + { + /* Check the parameters */ + assert_param(IS_OB_PCROP_CONFIG(pOBInit->PCROPConfig)); + + if ((pOBInit->PCROPConfig & (OB_PCROP_ZONE_A | OB_PCROP_RDP_ERASE)) != 0U) + { + /* Configure the Zone 1A Proprietary code readout protection */ + FLASH_OB_PCROP1AConfig(pOBInit->PCROPConfig, pOBInit->PCROP1AStartAddr, pOBInit->PCROP1AEndAddr); + } + + if ((pOBInit->PCROPConfig & OB_PCROP_ZONE_B) != 0U) + { + /* Configure the Zone 1B Proprietary code readout protection */ + FLASH_OB_PCROP1BConfig(pOBInit->PCROP1BStartAddr, pOBInit->PCROP1BEndAddr); + } + } + + /* Secure mode and CPU2 Boot Vector */ + if ((pOBInit->OptionType & (OPTIONBYTE_SECURE_MODE | OPTIONBYTE_C2_BOOT_VECT)) != 0U) + { + /* Set the secure flash and SRAM memory start address */ + FLASH_OB_SecureConfig(pOBInit); + } + + /* IPCC mailbox data buffer address */ + if ((pOBInit->OptionType & OPTIONBYTE_IPCC_BUF_ADDR) != 0U) + { + /* Configure the IPCC data buffer address */ + FLASH_OB_IPCCBufferAddrConfig(pOBInit->IPCCdataBufAddr); + } + + /* Proceed the OB Write Operation */ + status = FLASH_OB_ProceedWriteOperation(); + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + /* return status */ + return status; +} + +/** + * @brief Get the Option bytes configuration. + * @note warning: this API only read flash register, it does not reflect any + * change that would have been programmed between previous Option byte + * loading and current call. + * @param pOBInit Pointer to an @ref FLASH_OBProgramInitTypeDef structure that contains the + * configuration information. The fields pOBInit->WRPArea and + * pOBInit->PCROPConfig should indicate which area is requested + * for the WRP and PCROP. + * @retval None + */ +void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit) +{ + pOBInit->OptionType = OPTIONBYTE_ALL; + + if ((pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAA) || (pOBInit->WRPArea == OB_WRPAREA_BANK1_AREAB)) + { + /* 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(); + pOBInit->UserType = OB_USER_ALL; + + /* Get the Zone 1A and 1B Proprietary code readout protection */ + FLASH_OB_GetPCROP(&(pOBInit->PCROPConfig), &(pOBInit->PCROP1AStartAddr), &(pOBInit->PCROP1AEndAddr), + &(pOBInit->PCROP1BStartAddr), &(pOBInit->PCROP1BEndAddr)); + pOBInit->PCROPConfig |= (OB_PCROP_ZONE_A | OB_PCROP_ZONE_B); + + /* Get the IPCC start Address */ + pOBInit->IPCCdataBufAddr = FLASH_OB_GetIPCCBufferAddr(); + + /* Get the Secure Flash start address, Secure Backup RAM2a start address, Secure non-Backup RAM2b start address and the Security Mode, */ + FLASH_OB_GetSecureMemoryConfig(&(pOBInit->SecureFlashStartAddr), &(pOBInit->SecureRAM2aStartAddr), + &(pOBInit->SecureRAM2bStartAddr), &(pOBInit->SecureMode)); + + /* Get the M0+ Secure Boot reset vector and Secure Boot memory selection */ + FLASH_OB_GetC2BootResetConfig(&(pOBInit->C2SecureBootVectAddr), &(pOBInit->C2BootRegion)); +} + +/** + * @brief Flash Empty check + * @note This API checks if first location in Flash is programmed or not. + * This check is done once by Option Byte Loader. + * @retval Returned value can be one of the following values: + * @arg @ref FLASH_PROG_NOT_EMPTY 1st location in Flash is programmed + * @arg @ref FLASH_PROG_EMPTY 1st location in Flash is empty + */ +uint32_t HAL_FLASHEx_FlashEmptyCheck(void) +{ + return (READ_BIT(FLASH->ACR, FLASH_ACR_EMPTY)); +} + + +/** + * @brief Force Empty check value. + * @note Allows to modify program empty check value in order to force this + * information in Flash Interface, for all next reset that do not launch + * Option Byte Loader. + * @param FlashEmpty Specifies the empty check value + * This parameter can be one of the following values: + * @arg @ref FLASH_PROG_NOT_EMPTY 1st location in Flash is programmed + * @arg @ref FLASH_PROG_EMPTY 1st location in Flash is empty + * @retval None + */ +void HAL_FLASHEx_ForceFlashEmpty(uint32_t FlashEmpty) +{ + assert_param(IS_FLASH_EMPTY_CHECK(FlashEmpty)); + + MODIFY_REG(FLASH->ACR, FLASH_ACR_EMPTY, FlashEmpty); +} + +/** + * @brief Suspend new program or erase operation request. + * @note Any new Flash program and erase operation on both CPU side will be suspended + * until this bit and the same bit in Flash CPU2 access control register (FLASH_C2ACR) are + * cleared. The PESD bit in both the Flash status register (FLASH_SR) and Flash + * CPU2 status register (FLASH_C2SR) register will be set when at least one PES + * bit in FLASH_ACR or FLASH_C2ACR is set. + * @retval None + */ +void HAL_FLASHEx_SuspendOperation(void) +{ + SET_BIT(FLASH->ACR, FLASH_ACR_PES); +} + +/** + * @brief Allow new program or erase operation request. + * @note Any new Flash program and erase operation on both CPU side will be allowed + * until one of this bit or the same bit in Flash CPU2 access control register (FLASH_C2ACR) is + * set. The PESD bit in both the Flash status register (FLASH_SR) and Flash + * CPU2 status register (FLASH_C2SR) register will be clear when both PES + * bit in FLASH_ACR or FLASH_C2ACR is cleared. + * @retval None + */ +void HAL_FLASHEx_AllowOperation(void) +{ + CLEAR_BIT(FLASH->ACR, FLASH_ACR_PES); +} + +/** + * @brief Check if new program or erase operation request from CPU1 or CPU2 is suspended + * @note Any new Flash program and erase operation on both CPU side will be allowed + * until one of this bit or the same bit in Flash CPU2 access control register (FLASH_C2ACR) is + * set. The PESD bit in both the Flash status register (FLASH_SR) and Flash + * CPU2 status register (FLASH_C2SR) register will be cleared when both PES + * bit in FLASH_ACR and FLASH_C2ACR are cleared. + * @retval Status + * - 0 : No suspended flash operation + * - 1 : Flash operation is suspended + */ +uint32_t HAL_FLASHEx_IsOperationSuspended(void) +{ + uint32_t status = 0U; + + if (READ_BIT(FLASH->SR, FLASH_SR_PESD) == FLASH_SR_PESD) + { + status = 1U; + } + + return status; +} + +/** + * @} + */ + +/** + * @} + */ + +/* Private functions ---------------------------------------------------------*/ +/** @addtogroup FLASHEx_Private_Functions + * @{ + */ + +/** + * @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 Flash - 1) + * @retval None + */ +void FLASH_PageErase(uint32_t Page) +{ + /* Check the parameters */ + assert_param(IS_FLASH_PAGE(Page)); + + /* Proceed to erase the page */ + MODIFY_REG(FLASH->CR, FLASH_CR_PNB, ((Page << FLASH_CR_PNB_Pos) | FLASH_CR_PER | FLASH_CR_STRT)); +} + +/** + * @brief Flush the instruction and data caches. + * @retval None + */ +static void FLASH_FlushCaches(void) +{ + /* Flush instruction cache */ + if (READ_BIT(FLASH->ACR, FLASH_ACR_ICEN) == FLASH_ACR_ICEN) + { + /* 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 (READ_BIT(FLASH->ACR, FLASH_ACR_DCEN) == FLASH_ACR_DCEN) + { + /* Disable data cache */ + __HAL_FLASH_DATA_CACHE_DISABLE(); + /* Reset data cache */ + __HAL_FLASH_DATA_CACHE_RESET(); + /* Enable data cache */ + __HAL_FLASH_DATA_CACHE_ENABLE(); + } +} + +/** + * @brief Acknlowldge the page erase operation. + * @retval None + */ +static void FLASH_AcknowledgePageErase(void) +{ + CLEAR_BIT(FLASH->CR, (FLASH_CR_PER | FLASH_CR_PNB)); +} + +/** + * @brief Configure the write protection of the desired pages. + * @note When WRP is active in a zone, it cannot be erased or programmed. + * Consequently, a software mass erase cannot be performed if one zone + * is write-protected. + * @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 @ref HAL_FLASH_OB_Unlock() function. + * @note To validate the WRP options, the option bytes must be reloaded + * through the call of the @ref HAL_FLASH_OB_Launch() function. + * @param WRPArea Specifies the area to be configured. + * This parameter can be one of the following values: + * @arg @ref OB_WRPAREA_BANK1_AREAA Flash Bank 1 Area A + * @arg @ref OB_WRPAREA_BANK1_AREAB Flash Bank 1 Area B + * @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 Flash - 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 Flash - 1) + * @retval None + */ +static void FLASH_OB_WRPConfig(uint32_t WRPArea, uint32_t WRPStartOffset, uint32_t WRDPEndOffset) +{ + /* Check the parameters */ + assert_param(IS_OB_WRPAREA(WRPArea)); + assert_param(IS_FLASH_PAGE(WRPStartOffset)); + assert_param(IS_FLASH_PAGE(WRDPEndOffset)); + + /* 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 << FLASH_WRP1AR_WRP1A_END_Pos))); + } + else /* OB_WRPAREA_BANK1_AREAB */ + { + MODIFY_REG(FLASH->WRP1BR, (FLASH_WRP1BR_WRP1B_STRT | FLASH_WRP1BR_WRP1B_END), + (WRPStartOffset | (WRDPEndOffset << FLASH_WRP1AR_WRP1A_END_Pos))); + } +} + +/** + * @brief Set user & RDP configuration + * @note !!! Warning : When enabling OB_RDP level 2 it's no more possible + * to go back to level 1 or 0 !!! + * @param UserType The FLASH User Option Bytes to be modified + * This parameter can be a combination of all the following values: + * @arg @ref OB_USER_BOR_LEV or @ref OB_USER_nRST_STOP or @ref OB_USER_nRST_STDBY or + * @arg @ref OB_USER_nRST_SHDW or @ref OB_USER_IWDG_SW or @ref OB_USER_IWDG_STOP or + * @arg @ref OB_USER_IWDG_STDBY or @ref OB_USER_WWDG_SW or @ref OB_USER_nBOOT1 or + * @arg @ref OB_USER_SRAM2PE or @ref OB_USER_SRAM2RST or @ref OB_USER_nSWBOOT0 or + * @arg @ref OB_USER_nBOOT0 or @ref OB_USER_AGC_TRIM or @ref OB_USER_ALL + * @param UserConfig The FLASH User Option Bytes values. + * This parameter can be a combination of all the following values: + * @arg @ref OB_BOR_LEVEL_0 or @ref OB_BOR_LEVEL_1 or ... or @ref OB_BOR_LEVEL_4 + * @arg @ref OB_STOP_RST or @ref OB_STOP_NORST + * @arg @ref OB_STANDBY_RST or @ref OB_STANDBY_NORST + * @arg @ref OB_SHUTDOWN_RST or @ref OB_SHUTDOWN_NORST + * @arg @ref OB_IRH_ENABLE or @ref OB_IRH_DISABLE (*) + * @arg @ref OB_IWDG_SW or @ref OB_IWDG_HW + * @arg @ref OB_IWDG_STOP_FREEZE or @ref OB_IWDG_STOP_RUN + * @arg @ref OB_IWDG_STDBY_FREEZE or @ref OB_IWDG_STDBY_RUN + * @arg @ref OB_WWDG_SW or @ref OB_WWDG_HW + * @arg @ref OB_BOOT1_SRAM or @ref OB_BOOT1_SYSTEM + * @arg @ref OB_SRAM2_PARITY_ENABLE or @ref OB_SRAM2_PARITY_DISABLE + * @arg @ref OB_SRAM2_RST_ERASE or @ref OB_SRAM2_RST_NOT_ERASE + * @arg @ref OB_BOOT0_FROM_OB or @ref OB_BOOT0_FROM_PIN + * @arg @ref OB_BOOT0_RESET or @ref OB_BOOT0_SET + * @arg @ref OB_RESET_MODE_INPUT_ONLY or @ref OB_RESET_MODE_GPIO or @ref OB_RESET_MODE_INPUT_OUTPUT (*) + * @arg @ref OB_AGC_TRIM_0 or @ref OB_AGC_TRIM_1 or ... or @ref OB_AGC_TRIM_7 + * @param RDPLevel: specifies the read protection level. + * This parameter can be one of the following values: + * @arg @ref OB_RDP_LEVEL_0 No protection + * @arg @ref OB_RDP_LEVEL_1 Read protection of the memory + * @arg @ref OB_RDP_LEVEL_2 Full chip protection + * @retval None + */ +static void FLASH_OB_OptrConfig(uint32_t UserType, uint32_t UserConfig, uint32_t RDPLevel) +{ + uint32_t optr; + + /* Check the parameters */ + assert_param(IS_OB_USER_TYPE(UserType)); + assert_param(IS_OB_USER_CONFIG(UserType, UserConfig)); + assert_param(IS_OB_RDP_LEVEL(RDPLevel)); + + /* Configure the RDP level in the option bytes register */ + optr = FLASH->OPTR; + optr &= ~(UserType | FLASH_OPTR_RDP); + FLASH->OPTR = (optr | UserConfig | RDPLevel); +} + +/** + * @brief Configure the Zone 1A Proprietary code readout protection of the desired addresses, + * and erase configuration on RDP regression. + * @note To configure the PCROP options, the option lock bit OPTLOCK must be + * cleared with the call of the @ref HAL_FLASH_OB_Unlock() function. + * @note To validate the PCROP options, the option bytes must be reloaded + * through the call of the @ref HAL_FLASH_OB_Launch() function. + * @param PCROPConfig: specifies the erase configuration (OB_PCROP_RDP_NOT_ERASE or OB_PCROP_RDP_ERASE) + * on RDP level 1 regression. + * @param PCROP1AStartAddr Specifies the Zone 1A Start address of the Proprietary code readout protection + * This parameter can be an address between begin and end of the flash + * @param PCROP1AEndAddr Specifies the Zone 1A end address of the Proprietary code readout protection + * This parameter can be an address between PCROP1AStartAddr and end of the flash + * @retval None + */ +static void FLASH_OB_PCROP1AConfig(uint32_t PCROPConfig, uint32_t PCROP1AStartAddr, uint32_t PCROP1AEndAddr) +{ + uint32_t startoffset; + uint32_t endoffset; + uint32_t pcrop1aend; + + /* Check the parameters */ + assert_param(IS_OB_PCROP_CONFIG(PCROPConfig)); + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROP1AStartAddr)); + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROP1AEndAddr)); + + /* get pcrop 1A end register */ + pcrop1aend = FLASH->PCROP1AER; + + /* Configure the Proprietary code readout protection offset */ + if ((PCROPConfig & OB_PCROP_ZONE_A) != 0U) + { + /* Compute offset depending on pcrop granularity */ + startoffset = ((PCROP1AStartAddr - FLASH_BASE) >> FLASH_PCROP_GRANULARITY_OFFSET); /* 2K pages */ + endoffset = ((PCROP1AEndAddr - FLASH_BASE) >> FLASH_PCROP_GRANULARITY_OFFSET); /* 2K pages */ + + /* Set Zone A start offset */ + WRITE_REG(FLASH->PCROP1ASR, startoffset); + + /* Set Zone A end offset */ + pcrop1aend &= ~FLASH_PCROP1AER_PCROP1A_END; + pcrop1aend |= endoffset; + } + + /* Set RDP erase protection if needed. This bit is only set & will be reset by mass erase */ + if ((PCROPConfig & OB_PCROP_RDP_ERASE) != 0U) + { + pcrop1aend |= FLASH_PCROP1AER_PCROP_RDP; + } + + /* set 1A End register */ + WRITE_REG(FLASH->PCROP1AER, pcrop1aend); +} + +/** + * @brief Configure the Zone 1B 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 @ref HAL_FLASH_OB_Unlock() function. + * @note To validate the PCROP options, the option bytes must be reloaded + * through the call of the @ref HAL_FLASH_OB_Launch() function. + * @param PCROP1BStartAddr Specifies the Zone 1BStart address of the Proprietary code readout protection + * This parameter can be an address between begin and end of the flash + * @param PCROP1BEndAddr Specifies the Zone 1B end address of the Proprietary code readout protection + * This parameter can be an address between PCROP1BStartAddr and end of the flash + * @retval None + */ +static void FLASH_OB_PCROP1BConfig(uint32_t PCROP1BStartAddr, uint32_t PCROP1BEndAddr) +{ + uint32_t startoffset; + uint32_t endoffset; + + /* Check the parameters */ + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROP1BStartAddr)); + assert_param(IS_FLASH_MAIN_MEM_ADDRESS(PCROP1BEndAddr)); + + /* Compute offset depending on pcrop granularity */ + startoffset = ((PCROP1BStartAddr - FLASH_BASE) >> FLASH_PCROP_GRANULARITY_OFFSET); /* 2K pages */ + endoffset = ((PCROP1BEndAddr - FLASH_BASE) >> FLASH_PCROP_GRANULARITY_OFFSET); /* 2K pages */ + + /* Configure the Proprietary code readout protection start address */ + WRITE_REG(FLASH->PCROP1BSR, startoffset); + + /* Configure the Proprietary code readout protection end address */ + WRITE_REG(FLASH->PCROP1BER, endoffset); +} + +/** + * @brief Program the FLASH IPCC data buffer address. + * @note To configure the extra user option bytes, the option lock bit OPTLOCK must + * be cleared with the call of the @ref HAL_FLASH_OB_Unlock() function. + * @note To validate the extra user option bytes, the option bytes must be reloaded + * through the call of the @ref HAL_FLASH_OB_Launch() function. + * @param IPCCDataBufAddr IPCC data buffer start address area in SRAM2 + * This parameter must be the double-word aligned + * @retval None + */ +static void FLASH_OB_IPCCBufferAddrConfig(uint32_t IPCCDataBufAddr) +{ + assert_param(IS_OB_IPCC_BUF_ADDR(IPCCDataBufAddr)); + + /* Configure the option bytes register */ + WRITE_REG(FLASH->IPCCBR, (uint32_t)((IPCCDataBufAddr - SRAM2A_BASE) >> 4)); +} + +/** + * @brief Configure the secure start address of the different memories (FLASH and SRAM2), + * the secure mode and the CPU2 Secure Boot reset vector + * @note To configure the PCROP options, the option lock bit OPTLOCK must be + * cleared with the call of the @ref HAL_FLASH_OB_Unlock() function. + * @param pOBParam Pointer to an @ref FLASH_OBProgramInitTypeDef structure that + * contains the configuration information for the programming + * @retval void + */ +static void FLASH_OB_SecureConfig(FLASH_OBProgramInitTypeDef *pOBParam) +{ + uint32_t sfr_reg_val = READ_REG(FLASH->SFR); + uint32_t srrvr_reg_val = READ_REG(FLASH->SRRVR); + + if ((pOBParam->OptionType & OPTIONBYTE_SECURE_MODE) != 0U) + { + assert_param(IS_OB_SFSA_START_ADDR(pOBParam->SecureFlashStartAddr)); + assert_param(IS_OB_SBRSA_START_ADDR(pOBParam->SecureRAM2aStartAddr)); + assert_param(IS_OB_SNBRSA_START_ADDR(pOBParam->SecureRAM2bStartAddr)); + assert_param(IS_OB_SECURE_MODE(pOBParam->SecureMode)); + + /* Configure SFR register content with start PAGE index to secure */ + MODIFY_REG(sfr_reg_val, FLASH_SFR_SFSA, (((pOBParam->SecureFlashStartAddr - FLASH_BASE) / FLASH_PAGE_SIZE) << FLASH_SFR_SFSA_Pos)); + + /* Configure SRRVR register */ +#if defined(FLASH_SRRVR_SBRSA_A) + MODIFY_REG(srrvr_reg_val, (FLASH_SRRVR_SBRSA_A | FLASH_SRRVR_SBRSA_B), \ + (((((pOBParam->SecureRAM2aStartAddr - SRAM2A_BASE) >> SRAM_SECURE_PAGE_GRANULARITY_OFFSET) << FLASH_SRRVR_SBRSA_A_Pos)) | \ + ((((pOBParam->SecureRAM2bStartAddr - SRAM2B_BASE) >> SRAM_SECURE_PAGE_GRANULARITY_OFFSET) << FLASH_SRRVR_SBRSA_B_Pos)))); +#else + MODIFY_REG(srrvr_reg_val, (FLASH_SRRVR_SBRSA | FLASH_SRRVR_SNBRSA), \ + (((((pOBParam->SecureRAM2aStartAddr - SRAM2A_BASE) >> SRAM_SECURE_PAGE_GRANULARITY_OFFSET) << FLASH_SRRVR_SBRSA_Pos)) | \ + ((((pOBParam->SecureRAM2bStartAddr - SRAM2B_BASE) >> SRAM_SECURE_PAGE_GRANULARITY_OFFSET) << FLASH_SRRVR_SNBRSA_Pos)))); +#endif /* FLASH_SRRVR_SBRSA_A */ + + /* If Full System Secure mode is requested, clear all the corresponding bit */ + /* Else set the corresponding bit */ + if (pOBParam->SecureMode == SYSTEM_IN_SECURE_MODE) + { + CLEAR_BIT(sfr_reg_val, FLASH_SFR_FSD); +#if defined(FLASH_SRRVR_BRSD_A) + CLEAR_BIT(srrvr_reg_val, (FLASH_SRRVR_BRSD_A | FLASH_SRRVR_BRSD_B)); +#else + CLEAR_BIT(srrvr_reg_val, (FLASH_SRRVR_BRSD | FLASH_SRRVR_NBRSD)); +#endif /* FLASH_SRRVR_BRSD_A */ + } + else + { + SET_BIT(sfr_reg_val, FLASH_SFR_FSD); +#if defined(FLASH_SRRVR_BRSD_A) + SET_BIT(srrvr_reg_val, (FLASH_SRRVR_BRSD_A | FLASH_SRRVR_BRSD_B)); +#else + SET_BIT(srrvr_reg_val, (FLASH_SRRVR_BRSD | FLASH_SRRVR_NBRSD)); +#endif /* FLASH_SRRVR_BRSD_A */ + } + + /* Update Flash registers */ + WRITE_REG(FLASH->SFR, sfr_reg_val); + } + + /* Boot vector */ + if ((pOBParam->OptionType & OPTIONBYTE_C2_BOOT_VECT) != 0U) + { + /* Check the parameters */ + assert_param(IS_OB_BOOT_VECTOR_ADDR(pOBParam->C2SecureBootVectAddr)); + assert_param(IS_OB_BOOT_REGION(pOBParam->C2BootRegion)); + + /* Set the boot vector */ + if (pOBParam->C2BootRegion == OB_C2_BOOT_FROM_FLASH) + { + MODIFY_REG(srrvr_reg_val, (FLASH_SRRVR_SBRV | FLASH_SRRVR_C2OPT), + (((pOBParam->C2SecureBootVectAddr - FLASH_BASE) >> 2) | pOBParam->C2BootRegion)); + } + else + { + MODIFY_REG(srrvr_reg_val, (FLASH_SRRVR_SBRV | FLASH_SRRVR_C2OPT), + (((pOBParam->C2SecureBootVectAddr - SRAM1_BASE) >> 2) | pOBParam->C2BootRegion)); + } + } + + /* Update Flash registers */ + WRITE_REG(FLASH->SRRVR, srrvr_reg_val); +} + +/** + * @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 @ref OB_WRPAREA_BANK1_AREAA Flash Bank 1 Area A + * @arg @ref OB_WRPAREA_BANK1_AREAB Flash Bank 1 Area B + * @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) +{ + /* Check the parameters */ + assert_param(IS_OB_WRPAREA(WRPArea)); + + /* 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) >> FLASH_WRP1AR_WRP1A_END_Pos); + } + else /* OB_WRPAREA_BANK1_AREAB */ + { + *WRPStartOffset = READ_BIT(FLASH->WRP1BR, FLASH_WRP1BR_WRP1B_STRT); + *WRDPEndOffset = (READ_BIT(FLASH->WRP1BR, FLASH_WRP1BR_WRP1B_END) >> FLASH_WRP1BR_WRP1B_END_Pos); + } +} + +/** + * @brief Return the FLASH Read Protection level. + * @retval FLASH ReadOut Protection Status: + * This return value can be one of the following values: + * @arg @ref OB_RDP_LEVEL_0 No protection + * @arg @ref OB_RDP_LEVEL_1 Read protection of the memory + * @arg @ref OB_RDP_LEVEL_2 Full chip protection + */ +static uint32_t FLASH_OB_GetRDP(void) +{ + uint32_t rdplvl = READ_BIT(FLASH->OPTR, FLASH_OPTR_RDP); + + if ((rdplvl != OB_RDP_LEVEL_0) && (rdplvl != OB_RDP_LEVEL_2)) + { + return (OB_RDP_LEVEL_1); + } + else + { + return rdplvl; + } +} + +/** + * @brief Return the FLASH User Option Byte value. + * @retval This return value can be a combination of all the following values: + * @arg @ref OB_BOR_LEVEL_0 or @ref OB_BOR_LEVEL_1 or ... or @ref OB_BOR_LEVEL_4 + * @arg @ref OB_STOP_RST or @ref OB_STOP_RST + * @arg @ref OB_STANDBY_RST or @ref OB_STANDBY_NORST + * @arg @ref OB_SHUTDOWN_RST or @ref OB_SHUTDOWN_NORST + * @arg @ref OB_IRH_ENABLE or @ref OB_IRH_DISABLE (*) + * @arg @ref OB_IWDG_SW or @ref OB_IWDG_HW + * @arg @ref OB_IWDG_STOP_FREEZE or @ref OB_IWDG_STOP_RUN + * @arg @ref OB_IWDG_STDBY_FREEZE or @ref OB_IWDG_STDBY_RUN + * @arg @ref OB_WWDG_SW or @ref OB_WWDG_HW + * @arg @ref OB_BOOT1_SRAM or @ref OB_BOOT1_SYSTEM + * @arg @ref OB_SRAM2_PARITY_ENABLE or @ref OB_SRAM2_PARITY_DISABLE + * @arg @ref OB_SRAM2_RST_ERASE or @ref OB_SRAM2_RST_NOT_ERASE + * @arg @ref OB_BOOT0_FROM_OB or @ref OB_BOOT0_FROM_PIN + * @arg @ref OB_BOOT0_RESET or @ref OB_BOOT0_SET + * @arg @ref OB_RESET_MODE_INPUT_ONLY or @ref OB_RESET_MODE_GPIO or @ref OB_RESET_MODE_INPUT_OUTPUT (*) + * @arg @ref OB_AGC_TRIM_0 or @ref OB_AGC_TRIM_1 or ... or @ref OB_AGC_TRIM_7 + */ +static uint32_t FLASH_OB_GetUser(void) +{ + uint32_t user_config = (READ_REG(FLASH->OPTR) & OB_USER_ALL); + CLEAR_BIT(user_config, (FLASH_OPTR_RDP | FLASH_OPTR_ESE)); + + return user_config; +} + +/** + * @brief Return the FLASH Write Protection Option Bytes value. + * @param PCROPConfig [out] Specifies the address where to copied the configuration of PCROP_RDP option + * @param PCROP1AStartAddr [out] Specifies the address where to copied the start address + * of the Zone 1A Proprietary code readout protection + * @param PCROP1AEndAddr [out] Specifies the address where to copied the end address of + * the Zone 1A Proprietary code readout protection + * @param PCROP1BStartAddr [out] Specifies the address where to copied the start address + * of the Zone 1B Proprietary code readout protection + * @param PCROP1BEndAddr [out] Specifies the address where to copied the end address of + * the Zone 1B Proprietary code readout protection + * @retval None + */ +static void FLASH_OB_GetPCROP(uint32_t *PCROPConfig, uint32_t *PCROP1AStartAddr, uint32_t *PCROP1AEndAddr, + uint32_t *PCROP1BStartAddr, uint32_t *PCROP1BEndAddr) +{ + uint32_t pcrop; + + pcrop = (READ_BIT(FLASH->PCROP1BSR, FLASH_PCROP1BSR_PCROP1B_STRT)); + *PCROP1BStartAddr = ((pcrop << FLASH_PCROP_GRANULARITY_OFFSET) + FLASH_BASE); + + pcrop = (READ_BIT(FLASH->PCROP1BER, FLASH_PCROP1BER_PCROP1B_END)); + *PCROP1BEndAddr = ((pcrop << FLASH_PCROP_GRANULARITY_OFFSET) + FLASH_BASE); + + pcrop = (READ_BIT(FLASH->PCROP1ASR, FLASH_PCROP1ASR_PCROP1A_STRT)); + *PCROP1AStartAddr = ((pcrop << FLASH_PCROP_GRANULARITY_OFFSET) + FLASH_BASE); + + pcrop = (READ_BIT(FLASH->PCROP1AER, FLASH_PCROP1AER_PCROP1A_END)); + *PCROP1AEndAddr = ((pcrop << FLASH_PCROP_GRANULARITY_OFFSET) + FLASH_BASE); + + *PCROPConfig = (READ_REG(FLASH->PCROP1AER) & FLASH_PCROP1AER_PCROP_RDP); +} + +/** + * @brief Return the FLASH IPCC data buffer base address Option Byte value. + * @retval Returned value is the IPCC data buffer start address area in SRAM2. + */ +static uint32_t FLASH_OB_GetIPCCBufferAddr(void) +{ + return (uint32_t)((READ_BIT(FLASH->IPCCBR, FLASH_IPCCBR_IPCCDBA) << 4) + SRAM2A_BASE); +} + +/** + * @brief Return the Secure Flash start address, Secure Backup RAM2a start address, Secure non-Backup RAM2b start address and the SecureMode + * @param SecureFlashStartAddr Specifies the address where to copied the Secure Flash start address + * @param SecureRAM2aStartAddr Specifies the address where to copied the Secure Backup RAM2a start address + * @param SecureRAM2bStartAddr Specifies the address where to copied the Secure non-Backup RAM2b start address + * @param SecureMode Specifies the address where to copied the Secure Mode. + * This return value can be one of the following values: + * @arg @ref SYSTEM_IN_SECURE_MODE : Security enabled + * @arg @ref SYSTEM_NOT_IN_SECURE_MODE : Security disabled + * @retval None + */ +static void FLASH_OB_GetSecureMemoryConfig(uint32_t *SecureFlashStartAddr, uint32_t *SecureRAM2aStartAddr, + uint32_t *SecureRAM2bStartAddr, uint32_t *SecureMode) +{ + uint32_t sfr_reg_val = READ_REG(FLASH->SFR); + uint32_t srrvr_reg_val = READ_REG(FLASH->SRRVR); + + /* Get Secure Flash start address */ + uint32_t user_config = (READ_BIT(sfr_reg_val, FLASH_SFR_SFSA) >> FLASH_SFR_SFSA_Pos); + + *SecureFlashStartAddr = ((user_config * FLASH_PAGE_SIZE) + FLASH_BASE); + + /* Get Secure SRAM2a start address */ +#if defined(FLASH_SRRVR_SBRSA_A) + user_config = (READ_BIT(srrvr_reg_val, FLASH_SRRVR_SBRSA_A) >> FLASH_SRRVR_SBRSA_A_Pos); +#else + user_config = (READ_BIT(srrvr_reg_val, FLASH_SRRVR_SBRSA) >> FLASH_SRRVR_SBRSA_Pos); +#endif /* FLASH_SRRVR_SBRSA_A */ + + *SecureRAM2aStartAddr = ((user_config << SRAM_SECURE_PAGE_GRANULARITY_OFFSET) + SRAM2A_BASE); + + /* Get Secure SRAM2b start address */ +#if defined(FLASH_SRRVR_SBRSA_B) + user_config = (READ_BIT(srrvr_reg_val, FLASH_SRRVR_SBRSA_B) >> FLASH_SRRVR_SBRSA_B_Pos); +#else + user_config = (READ_BIT(srrvr_reg_val, FLASH_SRRVR_SNBRSA) >> FLASH_SRRVR_SNBRSA_Pos); +#endif /* FLASH_SRRVR_SBRSA_B */ + + *SecureRAM2bStartAddr = ((user_config << SRAM_SECURE_PAGE_GRANULARITY_OFFSET) + SRAM2B_BASE); + + /* Get Secure Area mode */ + *SecureMode = (READ_BIT(FLASH->OPTR, FLASH_OPTR_ESE)); +} + +/** + * @brief Return the CPU2 Secure Boot reset vector address and the CPU2 Secure Boot Region + * @param C2BootResetVectAddr Specifies the address where to copied the CPU2 Secure Boot reset vector address + * @param C2BootResetRegion Specifies the Secure Boot reset memory region + * @retval None + */ +static void FLASH_OB_GetC2BootResetConfig(uint32_t *C2BootResetVectAddr, uint32_t *C2BootResetRegion) +{ + *C2BootResetRegion = (READ_BIT(FLASH->SRRVR, FLASH_SRRVR_C2OPT)); + + if (*C2BootResetRegion == OB_C2_BOOT_FROM_FLASH) + { + *C2BootResetVectAddr = (uint32_t)((READ_BIT(FLASH->SRRVR, FLASH_SRRVR_SBRV) << 2) + FLASH_BASE); + } + else + { + *C2BootResetVectAddr = (uint32_t)((READ_BIT(FLASH->SRRVR, FLASH_SRRVR_SBRV) << 2) + SRAM1_BASE); + } +} + +/** + * @brief Proceed the OB Write Operation. + * @retval HAL Status + */ +static HAL_StatusTypeDef FLASH_OB_ProceedWriteOperation(void) +{ + HAL_StatusTypeDef status; + + /* Verify that next operation can be proceed */ + status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if (status == HAL_OK) + { + /* Set OPTSTRT Bit */ + SET_BIT(FLASH->CR, FLASH_CR_OPTSTRT); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + } + + return status; +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_FLASH_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ |