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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c new file mode 100644 index 0000000000..214c95bfb1 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c @@ -0,0 +1,472 @@ +/** + ****************************************************************************** + * @file stm32l0xx_hal_flash_ramfunc.c + * @author MCD Application Team + * @version V1.2.0 + * @date 06-February-2015 + * @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) 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 "stm32l0xx_hal.h" + +#ifdef HAL_FLASH_MODULE_ENABLED +/** @addtogroup STM32L0xx_HAL_Driver + * @{ + */ + +/** @addtogroup FLASHRamfunc + * @brief FLASH functions executed from RAM + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +static __RAM_FUNC FLASHRAM_WaitForLastOperation(uint32_t Timeout); +static __RAM_FUNC FLASHRAM_SetErrorCode(void); + + +/** @addtogroup FLASHRamfunc_Exported_Functions + * +@verbatim + =============================================================================== + ##### ramfunc functions ##### + =============================================================================== + [..] + This subsection provides a set of functions that should be executed from RAM + transfers. + +@endverbatim + * @{ + */ + +/** @addtogroup FLASHRamfunc_Exported_Functions_Group1 + * @{ + */ + +/** + * @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. + * @param None + * @retval None + */ +__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. + * @param None + * @retval None + */ +__RAM_FUNC HAL_FLASHEx_DisableRunPowerDown(void) +{ + /* Disable the Power Down in Run mode*/ + __HAL_FLASH_POWER_DOWN_DISABLE(); + return HAL_OK; +} + +/** + * @} + */ + +/** @addtogroup FLASHRamfunc_Exported_Functions_Group2 + * +@verbatim +@endverbatim + * @{ + */ + +#if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx) +/** + * @brief Erases a specified 2 pages in program memory in parallel. + * @note This function can be used only for STM32L07xxx/STM32L08xxx devices. + * To correctly run this function, the HAL_FLASH_Unlock() function + * must be called before. + * Call the 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 128 bytes). + * @retval HAL Status: The returned value can be: + * HAL_ERROR, HAL_OK or HAL_TIMEOUT. + */ +__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 erasesStatus */ + return status; +} + +/** + * @brief Programs 2 half pages in program memory in parallel. The half page size is 16 Words. + * @note This function can be used only for STM32L07xxx/STM32L08xxx 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 HAL_FLASH_Unlock() function + * must be called before. + * Call the 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 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 64 + * bytes) and the 15 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: The returned value can be: + * HAL_ERROR, HAL_OK or HAL_TIMEOUT. + */ +__RAM_FUNC HAL_FLASHEx_ProgramParallelHalfPage(uint32_t Address1, uint32_t* pBuffer1, uint32_t Address2, uint32_t* pBuffer2) +{ + uint32_t count; + HAL_StatusTypeDef status; + + /* 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) + { + /* Write one half page, + Address1 doesn't need to be increased */ + count = 0; + + /* Disable all IRQs */ + __disable_irq(); + + while(count < 16) + { + *(__IO uint32_t*) Address1 = *pBuffer1; + pBuffer1++; + count++; + } + + /* Write the second half page, + Address2 doesn't need to be increased */ + count = 0; + while(count < 16) + { + *(__IO uint32_t*) Address2 = *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); + } + /* Return the Write Status */ + return status; +} +#endif /* STM32L071xx || STM32L072xx || STM32L073xx || STM32L081xx || STM32L082xx || STM32L083xx */ + +/** + * @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 HAL_FLASH_Unlock() function + * must be called before. + * Call the 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 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 64 + * bytes) and the 15 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: The returned value can be: + * HAL_ERROR, HAL_OK or HAL_TIMEOUT. + */ +__RAM_FUNC HAL_FLASHEx_HalfPageProgram(uint32_t Address, uint32_t *pBuffer) +{ + uint32_t count; + HAL_StatusTypeDef status; + + /* 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); + + + count = 0; + /* Write one half page, + Address doesn't need to be increased */ + + /* Disable all IRQs */ + __disable_irq(); + + while(count < 16) + { + *(__IO uint32_t*) Address = *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); + } + /* Return the write status */ + return status; +} + +/** + * @brief Get the specific FLASH errors flag. + * @param error pointer is the error value. It can be a mixed of : + * @arg HAL_FLASH_ERROR_RD: FLASH Read Protection error flag (PCROP) + * @arg HAL_FLASH_ERROR_SIZE: FLASH Programming Parallelism error flag + * @arg HAL_FLASH_ERROR_PGA: FLASH Programming Alignment error flag + * @arg HAL_FLASH_ERROR_WRP: FLASH Write protected error flag + * @arg HAL_FLASH_ERROR_OPTV: FLASH Option valid error flag + * @arg HAL_FLASH_ERROR_FWWERR: FLASH Write or Errase operation aborted + * @arg HAL_FLASH_ERROR_NOTZERO: FLASH Write operation is done in a not-erased region + */ +__RAM_FUNC HAL_FLASHRAM_GetError(uint32_t * error) +{ + *error = ProcFlash.ErrorCode; + return HAL_OK; +} + + + +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup FLASHRamfunc_Private_Functions FLASH RAM Private Functions + * @{ + */ + +/** + * @brief Set the specific FLASH error flag. + * @param None + * @retval None + */ +static __RAM_FUNC FLASHRAM_SetErrorCode(void) +{ + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_WRP; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_PGA; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_SIZE; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_RD; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_FWWERR; + } + if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR)) + { + ProcFlash.ErrorCode |= HAL_FLASH_ERROR_NOTZERO; + } + + /* Errors are now stored, clear errors flags */ + __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_SIZERR | + FLASH_FLAG_OPTVERR | FLASH_FLAG_RDERR | FLASH_FLAG_FWWERR | + FLASH_FLAG_NOTZEROERR); + 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; + } + + if( (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR) != RESET) || + (__HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR) != RESET) ) + { + /*Save the error code*/ + FLASHRAM_SetErrorCode(); + return HAL_ERROR; + } + + /* If there is an error flag set */ + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* HAL_FLASH_MODULE_ENABLED */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ + |