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Diff: targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_flash.c
- Revision:
- 0:e87aa4c49e95
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_flash.c Tue Jun 04 21:51:46 2019 +0000 @@ -0,0 +1,821 @@ +/** + ****************************************************************************** + * @file stm32f7xx_hal_flash.c + * @author MCD Application Team + * @version V1.0.4 + * @date 09-December-2015 + * @brief FLASH HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the internal FLASH memory: + * + Program operations functions + * + Memory Control functions + * + Peripheral Errors functions + * + @verbatim + ============================================================================== + ##### FLASH peripheral features ##### + ============================================================================== + + [..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses + to the Flash memory. It implements the erase and program Flash memory operations + and the read and write protection mechanisms. + + [..] The Flash memory interface accelerates code execution with a system of instruction + prefetch and cache lines. + + [..] The FLASH main features are: + (+) Flash memory read operations + (+) Flash memory program/erase operations + (+) Read / write protections + (+) Prefetch on I-Code + (+) 64 cache lines of 128 bits on I-Code + (+) 8 cache lines of 128 bits on D-Code + + ##### How to use this driver ##### + ============================================================================== + [..] + This driver provides functions and macros to configure and program the FLASH + memory of all STM32F7xx devices. + + (#) FLASH Memory IO Programming functions: + (++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and + HAL_FLASH_Lock() functions + (++) Program functions: byte, half word, word and double word + (++) There Two modes of programming : + (+++) Polling mode using HAL_FLASH_Program() function + (+++) Interrupt mode using HAL_FLASH_Program_IT() function + + (#) Interrupts and flags management functions : + (++) Handle FLASH interrupts by calling HAL_FLASH_IRQHandler() + (++) Wait for last FLASH operation according to its status + (++) Get error flag status by calling HAL_SetErrorCode() + [..] + In addition to these functions, this driver includes a set of macros allowing + to handle the following operations: + (+) Set the latency + (+) Enable/Disable the prefetch buffer + (+) Enable/Disable the Instruction cache and the Data cache + (+) Reset the Instruction cache and the Data cache + (+) Enable/Disable the FLASH interrupts + (+) Monitor the FLASH flags status + [..] + (@) For any Flash memory program operation (erase or program), the CPU clock frequency + (HCLK) must be at least 1MHz. + (@) The contents of the Flash memory are not guaranteed if a device reset occurs during + a Flash memory operation. + (@) Any attempt to read the Flash memory while it is being written or erased, causes the + bus to stall. Read operations are processed correctly once the program operation has + completed. This means that code or data fetches cannot be performed while a write/erase + operation is ongoing. + + @endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f7xx_hal.h" + +/** @addtogroup STM32F7xx_HAL_Driver + * @{ + */ + +/** @defgroup FLASH FLASH + * @brief FLASH HAL module driver + * @{ + */ + +#ifdef HAL_FLASH_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @addtogroup FLASH_Private_Constants + * @{ + */ +#define SECTOR_MASK ((uint32_t)0xFFFFFF07) +#define FLASH_TIMEOUT_VALUE ((uint32_t)50000)/* 50 s */ +/** + * @} + */ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/** @addtogroup FLASH_Private_Variables + * @{ + */ +/* Variable used for Erase sectors under interruption */ +FLASH_ProcessTypeDef pFlash; +/** + * @} + */ + +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup FLASH_Private_Functions + * @{ + */ +/* Program operations */ +static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data); +static void FLASH_Program_Word(uint32_t Address, uint32_t Data); +static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data); +static void FLASH_Program_Byte(uint32_t Address, uint8_t Data); +static void FLASH_SetErrorCode(void); + +HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout); +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup FLASH_Exported_Functions FLASH Exported Functions + * @{ + */ + +/** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions + * @brief Programming operation functions + * +@verbatim + =============================================================================== + ##### Programming operation functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to manage the FLASH + program operations. + +@endverbatim + * @{ + */ + +/** + * @brief Program byte, halfword, word or double word at a specified address + * @param TypeProgram: Indicate the way to program at a specified address. + * This parameter can be a value of @ref FLASH_Type_Program + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed + * + * @retval HAL_StatusTypeDef HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data) +{ + HAL_StatusTypeDef status = HAL_ERROR; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram)); + + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + switch(TypeProgram) + { + case FLASH_TYPEPROGRAM_BYTE : + { + /*Program byte (8-bit) at a specified address.*/ + FLASH_Program_Byte(Address, (uint8_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_HALFWORD : + { + /*Program halfword (16-bit) at a specified address.*/ + FLASH_Program_HalfWord(Address, (uint16_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_WORD : + { + /*Program word (32-bit) at a specified address.*/ + FLASH_Program_Word(Address, (uint32_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_DOUBLEWORD : + { + /*Program double word (64-bit) at a specified address.*/ + FLASH_Program_DoubleWord(Address, Data); + break; + } + default : + break; + } + /* Wait for last operation to be completed */ + status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); + + /* If the program operation is completed, disable the PG Bit */ + FLASH->CR &= (~FLASH_CR_PG); + } + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + + return status; +} + +/** + * @brief Program byte, halfword, word or double word at a specified address with interrupt enabled. + * @param TypeProgram: Indicate the way to program at a specified address. + * This parameter can be a value of @ref FLASH_Type_Program + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed + * + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(&pFlash); + + /* Check the parameters */ + assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram)); + + /* Enable End of FLASH Operation interrupt */ + __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP); + + /* Enable Error source interrupt */ + __HAL_FLASH_ENABLE_IT(FLASH_IT_ERR); + + /* Clear pending flags (if any) */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |\ + FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR| FLASH_FLAG_ERSERR); + + pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM; + pFlash.Address = Address; + + switch(TypeProgram) + { + case FLASH_TYPEPROGRAM_BYTE : + { + /*Program byte (8-bit) at a specified address.*/ + FLASH_Program_Byte(Address, (uint8_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_HALFWORD : + { + /*Program halfword (16-bit) at a specified address.*/ + FLASH_Program_HalfWord(Address, (uint16_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_WORD : + { + /*Program word (32-bit) at a specified address.*/ + FLASH_Program_Word(Address, (uint32_t) Data); + break; + } + + case FLASH_TYPEPROGRAM_DOUBLEWORD : + { + /*Program double word (64-bit) at a specified address.*/ + FLASH_Program_DoubleWord(Address, Data); + break; + } + default : + break; + } + return status; +} + +/** + * @brief This function handles FLASH interrupt request. + * @retval None + */ +void HAL_FLASH_IRQHandler(void) +{ + uint32_t temp = 0; + + /* If the program operation is completed, disable the PG Bit */ + FLASH->CR &= (~FLASH_CR_PG); + + /* If the erase operation is completed, disable the SER Bit */ + FLASH->CR &= (~FLASH_CR_SER); + FLASH->CR &= SECTOR_MASK; + + /* if the erase operation is completed, disable the MER Bit */ + FLASH->CR &= (~FLASH_MER_BIT); + + /* Check FLASH End of Operation flag */ + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP) != RESET) + { + switch (pFlash.ProcedureOnGoing) + { + case FLASH_PROC_SECTERASE : + { + /* Nb of sector to erased can be decreased */ + pFlash.NbSectorsToErase--; + + /* Check if there are still sectors to erase */ + if(pFlash.NbSectorsToErase != 0) + { + temp = pFlash.Sector; + /* Indicate user which sector has been erased */ + HAL_FLASH_EndOfOperationCallback(temp); + + /* Clear pending flags (if any) */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); + + /* Increment sector number */ + temp = ++pFlash.Sector; + FLASH_Erase_Sector(temp, pFlash.VoltageForErase); + } + else + { + /* No more sectors to Erase, user callback can be called.*/ + /* Reset Sector and stop Erase sectors procedure */ + pFlash.Sector = temp = 0xFFFFFFFF; + /* FLASH EOP interrupt user callback */ + HAL_FLASH_EndOfOperationCallback(temp); + /* Sector Erase procedure is completed */ + pFlash.ProcedureOnGoing = FLASH_PROC_NONE; + /* Clear FLASH End of Operation pending bit */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); + } + break; + } + + case FLASH_PROC_MASSERASE : + { + /* MassErase ended. Return the selected bank : in this product we don't have Banks */ + /* FLASH EOP interrupt user callback */ + HAL_FLASH_EndOfOperationCallback(0); + /* MAss Erase procedure is completed */ + pFlash.ProcedureOnGoing = FLASH_PROC_NONE; + /* Clear FLASH End of Operation pending bit */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); + break; + } + + case FLASH_PROC_PROGRAM : + { + /*Program ended. Return the selected address*/ + /* FLASH EOP interrupt user callback */ + HAL_FLASH_EndOfOperationCallback(pFlash.Address); + /* Programming procedure is completed */ + pFlash.ProcedureOnGoing = FLASH_PROC_NONE; + /* Clear FLASH End of Operation pending bit */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); + break; + } + default : + break; + } + } + + /* Check FLASH operation error flags */ + if(__HAL_FLASH_GET_FLAG((FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_ERSERR )) != RESET) + { + switch (pFlash.ProcedureOnGoing) + { + case FLASH_PROC_SECTERASE : + { + /* return the faulty sector */ + temp = pFlash.Sector; + pFlash.Sector = 0xFFFFFFFF; + break; + } + case FLASH_PROC_MASSERASE : + { + /* No return in case of Mass Erase */ + temp = 0; + break; + } + case FLASH_PROC_PROGRAM : + { + /*return the faulty address*/ + temp = pFlash.Address; + break; + } + default : + break; + } + /*Save the Error code*/ + FLASH_SetErrorCode(); + + /* FLASH error interrupt user callback */ + HAL_FLASH_OperationErrorCallback(temp); + /* Clear FLASH error pending bits */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_ERSERR ); + + /*Stop the procedure ongoing */ + pFlash.ProcedureOnGoing = FLASH_PROC_NONE; + } + + if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE) + { + /* Disable End of FLASH Operation interrupt */ + __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP); + + /* Disable Error source interrupt */ + __HAL_FLASH_DISABLE_IT(FLASH_IT_ERR); + + /* Process Unlocked */ + __HAL_UNLOCK(&pFlash); + } + +} + +/** + * @brief FLASH end of operation interrupt callback + * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure + * - Sectors Erase: Sector which has been erased (if 0xFFFFFFFF, it means that + * all the selected sectors have been erased) + * - Program : Address which was selected for data program + * - Mass Erase : No return value expected + * @retval None + */ +__weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(ReturnValue); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_FLASH_EndOfOperationCallback could be implemented in the user file + */ +} + +/** + * @brief FLASH operation error interrupt callback + * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure + * - Sectors Erase: Sector which has been erased (if 0xFFFFFFFF, it means that + * all the selected sectors have been erased) + * - Program : Address which was selected for data program + * - Mass Erase : No return value expected + * @retval None + */ +__weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(ReturnValue); + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_FLASH_OperationErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions + * @brief management functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the FLASH + memory operations. + +@endverbatim + * @{ + */ + +/** + * @brief Unlock the FLASH control register access + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_Unlock(void) +{ + if((FLASH->CR & FLASH_CR_LOCK) != RESET) + { + /* Authorize the FLASH Registers access */ + FLASH->KEYR = FLASH_KEY1; + FLASH->KEYR = FLASH_KEY2; + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Locks the FLASH control register access + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_Lock(void) +{ + /* Set the LOCK Bit to lock the FLASH Registers access */ + FLASH->CR |= FLASH_CR_LOCK; + + return HAL_OK; +} + +/** + * @brief Unlock the FLASH Option Control Registers access. + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void) +{ + if((FLASH->OPTCR & FLASH_OPTCR_OPTLOCK) != RESET) + { + /* Authorizes the Option Byte register programming */ + FLASH->OPTKEYR = FLASH_OPT_KEY1; + FLASH->OPTKEYR = FLASH_OPT_KEY2; + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Lock the FLASH Option Control Registers access. + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_OB_Lock(void) +{ + /* Set the OPTLOCK Bit to lock the FLASH Option Byte Registers access */ + FLASH->OPTCR |= FLASH_OPTCR_OPTLOCK; + + return HAL_OK; +} + +/** + * @brief Launch the option byte loading. + * @retval HAL Status + */ +HAL_StatusTypeDef HAL_FLASH_OB_Launch(void) +{ + /* Set the OPTSTRT bit in OPTCR register */ + FLASH->OPTCR |= FLASH_OPTCR_OPTSTRT; + + /* Wait for last operation to be completed */ + return(FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE)); +} + +/** + * @} + */ + +/** @defgroup FLASH_Exported_Functions_Group3 Peripheral State and Errors functions + * @brief Peripheral Errors functions + * +@verbatim + =============================================================================== + ##### Peripheral Errors functions ##### + =============================================================================== + [..] + This subsection permits to get in run-time Errors of the FLASH peripheral. + +@endverbatim + * @{ + */ + +/** + * @brief Get the specific FLASH error flag. + * @retval FLASH_ErrorCode: The returned value can be: + * @arg FLASH_ERROR_ERS: FLASH Erasing Sequence error flag + * @arg FLASH_ERROR_PGP: FLASH Programming Parallelism error flag + * @arg FLASH_ERROR_PGA: FLASH Programming Alignment error flag + * @arg FLASH_ERROR_WRP: FLASH Write protected error flag + * @arg FLASH_ERROR_OPERATION: FLASH operation Error flag + */ +uint32_t HAL_FLASH_GetError(void) +{ + return pFlash.ErrorCode; +} + +/** + * @} + */ + +/** + * @brief Wait for a FLASH operation to complete. + * @param Timeout: maximum flash operationtimeout + * @retval HAL Status + */ +HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout) +{ + uint32_t tickstart = 0; + + /* Clear Error Code */ + pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; + + /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset. + Even if the FLASH operation fails, the BUSY flag will be reset and an error + flag will be set */ + /* Get tick */ + tickstart = HAL_GetTick(); + + while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY) != RESET) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + return HAL_TIMEOUT; + } + } + } + + if(__HAL_FLASH_GET_FLAG((FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | \ + FLASH_FLAG_PGPERR | FLASH_FLAG_ERSERR )) != RESET) + { + /*Save the error code*/ + FLASH_SetErrorCode(); + return HAL_ERROR; + } + + /* If there is an error flag set */ + return HAL_OK; + +} + +/** + * @brief Program a double word (64-bit) at a specified address. + * @note This function must be used when the device voltage range is from + * 2.7V to 3.6V and an External Vpp is present. + * + * @note If an erase and a program operations are requested simultaneously, + * the erase operation is performed before the program one. + * + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed. + * @retval None + */ +static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data) +{ + /* Check the parameters */ + assert_param(IS_FLASH_ADDRESS(Address)); + + /* If the previous operation is completed, proceed to program the new data */ + FLASH->CR &= CR_PSIZE_MASK; + FLASH->CR |= FLASH_PSIZE_DOUBLE_WORD; + FLASH->CR |= FLASH_CR_PG; + + *(__IO uint64_t*)Address = Data; + + /* Data synchronous Barrier (DSB) Just after the write operation + This will force the CPU to respect the sequence of instruction (no optimization).*/ + __DSB(); +} + + +/** + * @brief Program word (32-bit) at a specified address. + * @note This function must be used when the device voltage range is from + * 2.7V to 3.6V. + * + * @note If an erase and a program operations are requested simultaneously, + * the erase operation is performed before the program one. + * + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed. + * @retval None + */ +static void FLASH_Program_Word(uint32_t Address, uint32_t Data) +{ + /* Check the parameters */ + assert_param(IS_FLASH_ADDRESS(Address)); + + /* If the previous operation is completed, proceed to program the new data */ + FLASH->CR &= CR_PSIZE_MASK; + FLASH->CR |= FLASH_PSIZE_WORD; + FLASH->CR |= FLASH_CR_PG; + + *(__IO uint32_t*)Address = Data; + + /* Data synchronous Barrier (DSB) Just after the write operation + This will force the CPU to respect the sequence of instruction (no optimization).*/ + __DSB(); +} + +/** + * @brief Program a half-word (16-bit) at a specified address. + * @note This function must be used when the device voltage range is from + * 2.7V to 3.6V. + * + * @note If an erase and a program operations are requested simultaneously, + * the erase operation is performed before the program one. + * + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed. + * @retval None + */ +static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data) +{ + /* Check the parameters */ + assert_param(IS_FLASH_ADDRESS(Address)); + + /* If the previous operation is completed, proceed to program the new data */ + FLASH->CR &= CR_PSIZE_MASK; + FLASH->CR |= FLASH_PSIZE_HALF_WORD; + FLASH->CR |= FLASH_CR_PG; + + *(__IO uint16_t*)Address = Data; + + /* Data synchronous Barrier (DSB) Just after the write operation + This will force the CPU to respect the sequence of instruction (no optimization).*/ + __DSB(); + +} + +/** + * @brief Program byte (8-bit) at a specified address. + * @note This function must be used when the device voltage range is from + * 2.7V to 3.6V. + * + * @note If an erase and a program operations are requested simultaneously, + * the erase operation is performed before the program one. + * + * @param Address: specifies the address to be programmed. + * @param Data: specifies the data to be programmed. + * @retval None + */ +static void FLASH_Program_Byte(uint32_t Address, uint8_t Data) +{ + /* Check the parameters */ + assert_param(IS_FLASH_ADDRESS(Address)); + + /* If the previous operation is completed, proceed to program the new data */ + FLASH->CR &= CR_PSIZE_MASK; + FLASH->CR |= FLASH_PSIZE_BYTE; + FLASH->CR |= FLASH_CR_PG; + + *(__IO uint8_t*)Address = Data; + + /* Data synchronous Barrier (DSB) Just after the write operation + This will force the CPU to respect the sequence of instruction (no optimization).*/ + __DSB(); +} + +/** + * @brief Set the specific FLASH error flag. + * @retval None + */ +static void FLASH_SetErrorCode(void) +{ + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) != RESET) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP; + } + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) != RESET) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA; + } + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGPERR) != RESET) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_PGP; + } + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ERSERR) != RESET) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_ERS; + } + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR) != RESET) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_OPERATION; + } +} + +/** + * @} + */ + +#endif /* HAL_FLASH_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/