mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/TARGET_STM32L1/device/stm32l1xx_hal_flash_ramfunc.c
- Revision:
- 149:156823d33999
- Child:
- 184:08ed48f1de7f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_STM/TARGET_STM32L1/device/stm32l1xx_hal_flash_ramfunc.c Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,674 @@ +/** + ****************************************************************************** + * @file stm32l1xx_hal_flash_ramfunc.c + * @author MCD Application Team + * @version V1.2.0 + * @date 01-July-2016 + * @brief FLASH RAMFUNC driver. + * This file provides a Flash firmware functions which should be + * executed from internal SRAM + * + * @verbatim + + *** ARM Compiler *** + -------------------- + [..] RAM functions are defined using the toolchain options. + Functions that are be executed in RAM should reside in a separate + source module. Using the 'Options for File' dialog you can simply change + the 'Code / Const' area of a module to a memory space in physical RAM. + Available memory areas are declared in the 'Target' tab of the + Options for Target' dialog. + + *** ICCARM Compiler *** + ----------------------- + [..] RAM functions are defined using a specific toolchain keyword "__ramfunc". + + *** GNU Compiler *** + -------------------- + [..] RAM functions are defined using a specific toolchain attribute + "__attribute__((section(".RamFunc")))". + +@endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2016 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 "stm32l1xx_hal.h" + +/** @addtogroup STM32L1xx_HAL_Driver + * @{ + */ + +#ifdef HAL_FLASH_MODULE_ENABLED + +/** @addtogroup FLASH + * @{ + */ +/** @addtogroup FLASH_Private_Variables + * @{ + */ +extern FLASH_ProcessTypeDef pFlash; +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup FLASH_RAMFUNC FLASH_RAMFUNC + * @brief FLASH functions executed from RAM + * @{ + */ + + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup FLASH_RAMFUNC_Private_Functions FLASH RAM Private Functions + * @{ + */ + +static __RAM_FUNC FLASHRAM_WaitForLastOperation(uint32_t Timeout); +static __RAM_FUNC FLASHRAM_SetErrorCode(void); + +/** + * @} + */ + +/* Private functions ---------------------------------------------------------*/ + +/** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH RAM Exported Functions + * +@verbatim + =============================================================================== + ##### ramfunc functions ##### + =============================================================================== + [..] + This subsection provides a set of functions that should be executed from RAM + transfers. + +@endverbatim + * @{ + */ + +/** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions + * @{ + */ + +/** + * @brief Enable the power down mode during RUN mode. + * @note This function can be used only when the user code is running from Internal SRAM. + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_EnableRunPowerDown(void) +{ + /* Enable the Power Down in Run mode*/ + __HAL_FLASH_POWER_DOWN_ENABLE(); + + return HAL_OK; +} + +/** + * @brief Disable the power down mode during RUN mode. + * @note This function can be used only when the user code is running from Internal SRAM. + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_DisableRunPowerDown(void) +{ + /* Disable the Power Down in Run mode*/ + __HAL_FLASH_POWER_DOWN_DISABLE(); + + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup FLASH_RAMFUNC_Exported_Functions_Group2 Programming and erasing operation functions + * +@verbatim +@endverbatim + * @{ + */ + +#if defined(FLASH_PECR_PARALLBANK) +/** + * @brief Erases a specified 2 pages in program memory in parallel. + * @note This function can be used only for STM32L151xD, STM32L152xD), STM32L162xD and Cat5 devices. + * To correctly run this function, the @ref HAL_FLASH_Unlock() function + * must be called before. + * Call the @ref HAL_FLASH_Lock() to disable the flash memory access + * (recommended to protect the FLASH memory against possible unwanted operation). + * @param Page_Address1: The page address in program memory to be erased in + * the first Bank (BANK1). This parameter should be between FLASH_BASE + * and FLASH_BANK1_END. + * @param Page_Address2: The page address in program memory to be erased in + * the second Bank (BANK2). This parameter should be between FLASH_BANK2_BASE + * and FLASH_BANK2_END. + * @note A Page is erased in the Program memory only if the address to load + * is the start address of a page (multiple of @ref FLASH_PAGE_SIZE bytes). + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_EraseParallelPage(uint32_t Page_Address1, uint32_t Page_Address2) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* Proceed to erase the page */ + SET_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK); + SET_BIT(FLASH->PECR, FLASH_PECR_ERASE); + SET_BIT(FLASH->PECR, FLASH_PECR_PROG); + + /* Write 00000000h to the first word of the first program page to erase */ + *(__IO uint32_t *)Page_Address1 = 0x00000000; + /* Write 00000000h to the first word of the second program page to erase */ + *(__IO uint32_t *)Page_Address2 = 0x00000000; + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + /* If the erase operation is completed, disable the ERASE, PROG and PARALLBANK bits */ + CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK); + } + /* Return the Erase Status */ + return status; +} + +/** + * @brief Program 2 half pages in program memory in parallel (half page size is 32 Words). + * @note This function can be used only for STM32L151xD, STM32L152xD), STM32L162xD and Cat5 devices. + * @param Address1: specifies the first address to be written in the first bank + * (BANK1). This parameter should be between FLASH_BASE and (FLASH_BANK1_END - FLASH_PAGE_SIZE). + * @param pBuffer1: pointer to the buffer containing the data to be written + * to the first half page in the first bank. + * @param Address2: specifies the second address to be written in the second bank + * (BANK2). This parameter should be between FLASH_BANK2_BASE and (FLASH_BANK2_END - FLASH_PAGE_SIZE). + * @param pBuffer2: pointer to the buffer containing the data to be written + * to the second half page in the second bank. + * @note To correctly run this function, the @ref HAL_FLASH_Unlock() function + * must be called before. + * Call the @ref HAL_FLASH_Lock() to disable the flash memory access + * (recommended to protect the FLASH memory against possible unwanted operation). + * @note Half page write is possible only from SRAM. + * @note If there are more than 32 words to write, after 32 words another + * Half Page programming operation starts and has to be finished. + * @note A half page is written to the program memory only if the first + * address to load is the start address of a half page (multiple of 128 + * bytes) and the 31 remaining words to load are in the same half page. + * @note During the Program memory half page write all read operations are + * forbidden (this includes DMA read operations and debugger read + * operations such as breakpoints, periodic updates, etc.). + * @note If a PGAERR is set during a Program memory half page write, the + * complete write operation is aborted. Software should then reset the + * FPRG and PROG/DATA bits and restart the write operation from the + * beginning. + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_ProgramParallelHalfPage(uint32_t Address1, uint32_t* pBuffer1, uint32_t Address2, uint32_t* pBuffer2) +{ + uint32_t count = 0; + HAL_StatusTypeDef status = HAL_OK; + + /* Set the DISMCYCINT[0] bit in the Auxillary Control Register (0xE000E008) + This bit prevents the interruption of multicycle instructions and therefore + will increase the interrupt latency. of Cortex-M3. */ + SET_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* Proceed to program the new half page */ + SET_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK); + SET_BIT(FLASH->PECR, FLASH_PECR_FPRG); + SET_BIT(FLASH->PECR, FLASH_PECR_PROG); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + if(status == HAL_OK) + { + /* Disable all IRQs */ + __disable_irq(); + + /* Write the first half page directly with 32 different words */ + while(count < 32) + { + *(__IO uint32_t*) ((uint32_t)(Address1 + (4 * count))) = *pBuffer1; + pBuffer1++; + count ++; + } + + /* Write the second half page directly with 32 different words */ + count = 0; + while(count < 32) + { + *(__IO uint32_t*) ((uint32_t)(Address2 + (4 * count))) = *pBuffer2; + pBuffer2++; + count ++; + } + + /* Enable IRQs */ + __enable_irq(); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + } + + /* if the write operation is completed, disable the PROG, FPRG and PARALLBANK bits */ + CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_FPRG); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK); + } + + CLEAR_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Return the Write Status */ + return status; +} +#endif /* FLASH_PECR_PARALLBANK */ + +/** + * @brief Program a half page in program memory. + * @param Address: specifies the address to be written. + * @param pBuffer: pointer to the buffer containing the data to be written to + * the half page. + * @note To correctly run this function, the @ref HAL_FLASH_Unlock() function + * must be called before. + * Call the @ref HAL_FLASH_Lock() to disable the flash memory access + * (recommended to protect the FLASH memory against possible unwanted operation) + * @note Half page write is possible only from SRAM. + * @note If there are more than 32 words to write, after 32 words another + * Half Page programming operation starts and has to be finished. + * @note A half page is written to the program memory only if the first + * address to load is the start address of a half page (multiple of 128 + * bytes) and the 31 remaining words to load are in the same half page. + * @note During the Program memory half page write all read operations are + * forbidden (this includes DMA read operations and debugger read + * operations such as breakpoints, periodic updates, etc.). + * @note If a PGAERR is set during a Program memory half page write, the + * complete write operation is aborted. Software should then reset the + * FPRG and PROG/DATA bits and restart the write operation from the + * beginning. + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_HalfPageProgram(uint32_t Address, uint32_t* pBuffer) +{ + uint32_t count = 0; + HAL_StatusTypeDef status = HAL_OK; + + /* Set the DISMCYCINT[0] bit in the Auxillary Control Register (0xE000E008) + This bit prevents the interruption of multicycle instructions and therefore + will increase the interrupt latency. of Cortex-M3. */ + SET_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* Proceed to program the new half page */ + SET_BIT(FLASH->PECR, FLASH_PECR_FPRG); + SET_BIT(FLASH->PECR, FLASH_PECR_PROG); + + /* Disable all IRQs */ + __disable_irq(); + + /* Write one half page directly with 32 different words */ + while(count < 32) + { + *(__IO uint32_t*) ((uint32_t)(Address + (4 * count))) = *pBuffer; + pBuffer++; + count ++; + } + + /* Enable IRQs */ + __enable_irq(); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + /* If the write operation is completed, disable the PROG and FPRG bits */ + CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_FPRG); + } + + CLEAR_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Return the Write Status */ + return status; +} + +/** + * @} + */ + +/** @defgroup FLASH_RAMFUNC_Exported_Functions_Group3 Peripheral errors functions + * @brief Peripheral errors functions + * +@verbatim + =============================================================================== + ##### Peripheral errors functions ##### + =============================================================================== + [..] + This subsection permit to get in run-time errors of the FLASH peripheral. + +@endverbatim + * @{ + */ + +/** + * @brief Get the specific FLASH errors flag. + * @param Error pointer is the error value. It can be a mixed of: +@if STM32L100xB +@elif STM32L100xBA + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) +@elif STM32L151xB +@elif STM32L151xBA + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) +@elif STM32L152xB +@elif STM32L152xBA + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) +@elif STM32L100xC + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) + * @arg @ref HAL_FLASH_ERROR_OPTVUSR FLASH Option User validity error +@elif STM32L151xC + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) + * @arg @ref HAL_FLASH_ERROR_OPTVUSR FLASH Option User validity error +@elif STM32L152xC + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) + * @arg @ref HAL_FLASH_ERROR_OPTVUSR FLASH Option User validity error +@elif STM32L162xC + * @arg @ref HAL_FLASH_ERROR_RD FLASH Read Protection error flag (PCROP) + * @arg @ref HAL_FLASH_ERROR_OPTVUSR FLASH Option User validity error +@else + * @arg @ref HAL_FLASH_ERROR_OPTVUSR FLASH Option User validity error +@endif + * @arg @ref HAL_FLASH_ERROR_PGA FLASH Programming Alignment error flag + * @arg @ref HAL_FLASH_ERROR_WRP FLASH Write protected error flag + * @arg @ref HAL_FLASH_ERROR_OPTV FLASH Option valid error flag + * @retval HAL Status + */ +__RAM_FUNC HAL_FLASHEx_GetError(uint32_t * Error) +{ + *Error = pFlash.ErrorCode; + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup FLASH_RAMFUNC_Exported_Functions_Group4 DATA EEPROM functions + * + * @{ + */ + +/** + * @brief Erase a double word in data memory. + * @param Address: specifies the address to be erased. + * @note To correctly run this function, the HAL_FLASH_EEPROM_Unlock() function + * must be called before. + * Call the HAL_FLASH_EEPROM_Lock() to he data EEPROM access + * and Flash program erase control register access(recommended to protect + * the DATA_EEPROM against possible unwanted operation). + * @note Data memory double word erase is possible only from SRAM. + * @note A double word is erased to the data memory only if the first address + * to load is the start address of a double word (multiple of 8 bytes). + * @note During the Data memory double word erase, all read operations are + * forbidden (this includes DMA read operations and debugger read + * operations such as breakpoints, periodic updates, etc.). + * @retval HAL status + */ + +__RAM_FUNC HAL_FLASHEx_DATAEEPROM_EraseDoubleWord(uint32_t Address) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Set the DISMCYCINT[0] bit in the Auxillary Control Register (0xE000E008) + This bit prevents the interruption of multicycle instructions and therefore + will increase the interrupt latency. of Cortex-M3. */ + SET_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* If the previous operation is completed, proceed to erase the next double word */ + /* Set the ERASE bit */ + SET_BIT(FLASH->PECR, FLASH_PECR_ERASE); + + /* Set DATA bit */ + SET_BIT(FLASH->PECR, FLASH_PECR_DATA); + + /* Write 00000000h to the 2 words to erase */ + *(__IO uint32_t *)Address = 0x00000000; + Address += 4; + *(__IO uint32_t *)Address = 0x00000000; + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + /* If the erase operation is completed, disable the ERASE and DATA bits */ + CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_DATA); + } + + CLEAR_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Return the erase status */ + return status; +} + +/** + * @brief Write a double word in data memory without erase. + * @param Address: specifies the address to be written. + * @param Data: specifies the data to be written. + * @note To correctly run this function, the HAL_FLASH_EEPROM_Unlock() function + * must be called before. + * Call the HAL_FLASH_EEPROM_Lock() to he data EEPROM access + * and Flash program erase control register access(recommended to protect + * the DATA_EEPROM against possible unwanted operation). + * @note Data memory double word write is possible only from SRAM. + * @note A data memory double word is written to the data memory only if the + * first address to load is the start address of a double word (multiple + * of double word). + * @note During the Data memory double word write, all read operations are + * forbidden (this includes DMA read operations and debugger read + * operations such as breakpoints, periodic updates, etc.). + * @retval HAL status + */ +__RAM_FUNC HAL_FLASHEx_DATAEEPROM_ProgramDoubleWord(uint32_t Address, uint64_t Data) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Set the DISMCYCINT[0] bit in the Auxillary Control Register (0xE000E008) + This bit prevents the interruption of multicycle instructions and therefore + will increase the interrupt latency. of Cortex-M3. */ + SET_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + if(status == HAL_OK) + { + /* If the previous operation is completed, proceed to program the new data*/ + SET_BIT(FLASH->PECR, FLASH_PECR_FPRG); + SET_BIT(FLASH->PECR, FLASH_PECR_DATA); + + /* Write the 2 words */ + *(__IO uint32_t *)Address = (uint32_t) Data; + Address += 4; + *(__IO uint32_t *)Address = (uint32_t) (Data >> 32); + + /* Wait for last operation to be completed */ + status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE); + + /* If the write operation is completed, disable the FPRG and DATA bits */ + CLEAR_BIT(FLASH->PECR, FLASH_PECR_FPRG); + CLEAR_BIT(FLASH->PECR, FLASH_PECR_DATA); + } + + CLEAR_BIT(SCnSCB->ACTLR, SCnSCB_ACTLR_DISMCYCINT_Msk); + + /* Return the Write Status */ + return status; +} + +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup FLASH_RAMFUNC_Private_Functions + * @{ + */ + +/** + * @brief Set the specific FLASH error flag. + * @retval HAL Status + */ +static __RAM_FUNC FLASHRAM_SetErrorCode(void) +{ + uint32_t flags = 0; + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP; + flags |= FLASH_FLAG_WRPERR; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA; + flags |= FLASH_FLAG_PGAERR; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV; + flags |= FLASH_FLAG_OPTVERR; + } + +#if defined(FLASH_SR_RDERR) + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_RD; + flags |= FLASH_FLAG_RDERR; + } +#endif /* FLASH_SR_RDERR */ +#if defined(FLASH_SR_OPTVERRUSR) + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERRUSR)) + { + pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTVUSR; + flags |= FLASH_FLAG_OPTVERRUSR; + } +#endif /* FLASH_SR_OPTVERRUSR */ + + /* Clear FLASH error pending bits */ + __HAL_FLASH_CLEAR_FLAG(flags); + + return HAL_OK; +} + +/** + * @brief Wait for a FLASH operation to complete. + * @param Timeout: maximum flash operationtimeout + * @retval HAL status + */ +static __RAM_FUNC FLASHRAM_WaitForLastOperation(uint32_t Timeout) +{ + /* 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 */ + + while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY) && (Timeout != 0x00)) + { + Timeout--; + } + + if(Timeout == 0x00 ) + { + return HAL_TIMEOUT; + } + + /* Check FLASH End of Operation flag */ + if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP)) + { + /* Clear FLASH End of Operation pending bit */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); + } + + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || + __HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) || +#if defined(FLASH_SR_RDERR) + __HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) || +#endif /* FLASH_SR_RDERR */ +#if defined(FLASH_SR_OPTVERRUSR) + __HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERRUSR) || +#endif /* FLASH_SR_OPTVERRUSR */ + __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) + { + /*Save the error code*/ + FLASHRAM_SetErrorCode(); + return HAL_ERROR; + } + + /* There is no error flag set */ + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_FLASH_MODULE_ENABLED */ +/** + * @} + */ + + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/