/** | |
****************************************************************************** | |
* @file stm32f7xx_hal_flash.c | |
* @author MCD Application Team | |
* @version V1.2.0 | |
* @date 30-December-2016 | |
* @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) 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 "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)0xFFFFFF07U) | |
#define FLASH_TIMEOUT_VALUE ((uint32_t)50000U)/* 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) | |
{ | |
/* Clear FLASH End of Operation pending bit */ | |
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); | |
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); | |
/* 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 = 0xFFFFFFFFU; | |
/* FLASH EOP interrupt user callback */ | |
HAL_FLASH_EndOfOperationCallback(temp); | |
/* Sector Erase procedure is completed */ | |
pFlash.ProcedureOnGoing = FLASH_PROC_NONE; | |
} | |
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; | |
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; | |
break; | |
} | |
default : | |
break; | |
} | |
} | |
/* Check FLASH operation error flags */ | |
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ALL_ERRORS) != RESET) | |
{ | |
switch (pFlash.ProcedureOnGoing) | |
{ | |
case FLASH_PROC_SECTERASE : | |
{ | |
/* return the faulty sector */ | |
temp = pFlash.Sector; | |
pFlash.Sector = 0xFFFFFFFFU; | |
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); | |
/*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_ALL_ERRORS) != RESET) | |
{ | |
/*Save the error code*/ | |
FLASH_SetErrorCode(); | |
return HAL_ERROR; | |
} | |
/* Check FLASH End of Operation flag */ | |
if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP) != RESET) | |
{ | |
/* Clear FLASH End of Operation pending bit */ | |
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); | |
} | |
/* 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_OPERR) != RESET) | |
{ | |
pFlash.ErrorCode |= HAL_FLASH_ERROR_OPERATION; | |
} | |
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 defined (FLASH_OPTCR2_PCROP) | |
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) != RESET) | |
{ | |
pFlash.ErrorCode |= HAL_FLASH_ERROR_RD; | |
} | |
#endif /* FLASH_OPTCR2_PCROP */ | |
/* Clear error programming flags */ | |
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS); | |
} | |
/** | |
* @} | |
*/ | |
#endif /* HAL_FLASH_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |