Eric Lewiston
Hal Drivers for L4
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stm32l4xx_hal_flash.c
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32l4xx_hal_flash.c 00004 * @author MCD Application Team 00005 * @version V1.1.0 00006 * @date 16-September-2015 00007 * @brief FLASH HAL module driver. 00008 * This file provides firmware functions to manage the following 00009 * functionalities of the internal FLASH memory: 00010 * + Program operations functions 00011 * + Memory Control functions 00012 * + Peripheral Errors functions 00013 * 00014 @verbatim 00015 ============================================================================== 00016 ##### FLASH peripheral features ##### 00017 ============================================================================== 00018 00019 [..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses 00020 to the Flash memory. It implements the erase and program Flash memory operations 00021 and the read and write protection mechanisms. 00022 00023 [..] The Flash memory interface accelerates code execution with a system of instruction 00024 prefetch and cache lines. 00025 00026 [..] The FLASH main features are: 00027 (+) Flash memory read operations 00028 (+) Flash memory program/erase operations 00029 (+) Read / write protections 00030 (+) Option bytes programming 00031 (+) Prefetch on I-Code 00032 (+) 32 cache lines of 4*64 bits on I-Code 00033 (+) 8 cache lines of 4*64 bits on D-Code 00034 (+) Error code correction (ECC) : Data in flash are 72-bits word 00035 (8 bits added per double word) 00036 00037 00038 ##### How to use this driver ##### 00039 ============================================================================== 00040 [..] 00041 This driver provides functions and macros to configure and program the FLASH 00042 memory of all STM32L4xx devices. 00043 00044 (#) Flash Memory IO Programming functions: 00045 (++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and 00046 HAL_FLASH_Lock() functions 00047 (++) Program functions: double word and fast program (full row programming) 00048 (++) There Two modes of programming : 00049 (+++) Polling mode using HAL_FLASH_Program() function 00050 (+++) Interrupt mode using HAL_FLASH_Program_IT() function 00051 00052 (#) Interrupts and flags management functions : 00053 (++) Handle FLASH interrupts by calling HAL_FLASH_IRQHandler() 00054 (++) Callback functions are called when the flash operations are finished : 00055 HAL_FLASH_EndOfOperationCallback() when everything is ok, otherwise 00056 HAL_FLASH_OperationErrorCallback() 00057 (++) Get error flag status by calling HAL_GetError() 00058 00059 (#) Option bytes management functions : 00060 (++) Lock and Unlock the option bytes using HAL_FLASH_OB_Unlock() and 00061 HAL_FLASH_OB_Lock() functions 00062 (++) Launch the reload of the option bytes using HAL_FLASH_Launch() function. 00063 In this case, a reset is generated 00064 00065 [..] 00066 In addition to these functions, this driver includes a set of macros allowing 00067 to handle the following operations: 00068 (+) Set the latency 00069 (+) Enable/Disable the prefetch buffer 00070 (+) Enable/Disable the Instruction cache and the Data cache 00071 (+) Reset the Instruction cache and the Data cache 00072 (+) Enable/Disable the Flash power-down during low-power run and sleep modes 00073 (+) Enable/Disable the Flash interrupts 00074 (+) Monitor the Flash flags status 00075 00076 @endverbatim 00077 ****************************************************************************** 00078 * @attention 00079 * 00080 * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> 00081 * 00082 * Redistribution and use in source and binary forms, with or without modification, 00083 * are permitted provided that the following conditions are met: 00084 * 1. Redistributions of source code must retain the above copyright notice, 00085 * this list of conditions and the following disclaimer. 00086 * 2. Redistributions in binary form must reproduce the above copyright notice, 00087 * this list of conditions and the following disclaimer in the documentation 00088 * and/or other materials provided with the distribution. 00089 * 3. Neither the name of STMicroelectronics nor the names of its contributors 00090 * may be used to endorse or promote products derived from this software 00091 * without specific prior written permission. 00092 * 00093 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00094 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00095 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00096 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00097 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00098 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00099 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00100 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00101 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00102 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00103 * 00104 ****************************************************************************** 00105 */ 00106 00107 /* Includes ------------------------------------------------------------------*/ 00108 #include "stm32l4xx_hal.h" 00109 00110 /** @addtogroup STM32L4xx_HAL_Driver 00111 * @{ 00112 */ 00113 00114 /** @defgroup FLASH FLASH 00115 * @brief FLASH HAL module driver 00116 * @{ 00117 */ 00118 00119 #ifdef HAL_FLASH_MODULE_ENABLED 00120 00121 /* Private typedef -----------------------------------------------------------*/ 00122 /* Private defines -----------------------------------------------------------*/ 00123 /* Private macros ------------------------------------------------------------*/ 00124 /* Private variables ---------------------------------------------------------*/ 00125 /** @defgroup FLASH_Private_Variables FLASH Private Variables 00126 * @{ 00127 */ 00128 /** 00129 * @brief Variable used for Program/Erase sectors under interruption 00130 */ 00131 FLASH_ProcessTypeDef pFlash; 00132 /** 00133 * @} 00134 */ 00135 00136 /* Private function prototypes -----------------------------------------------*/ 00137 /** @defgroup FLASH_Private_Functions FLASH Private Functions 00138 * @{ 00139 */ 00140 HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout); 00141 extern void FLASH_PageErase(uint32_t Page, uint32_t Banks); 00142 extern void FLASH_FlushCaches(void); 00143 static void FLASH_SetErrorCode(void); 00144 static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data); 00145 static void FLASH_Program_Fast(uint32_t Address, uint32_t DataAddress); 00146 /** 00147 * @} 00148 */ 00149 00150 /* Exported functions --------------------------------------------------------*/ 00151 /** @defgroup FLASH_Exported_Functions FLASH Exported Functions 00152 * @{ 00153 */ 00154 00155 /** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions 00156 * @brief Programming operation functions 00157 * 00158 @verbatim 00159 =============================================================================== 00160 ##### Programming operation functions ##### 00161 =============================================================================== 00162 [..] 00163 This subsection provides a set of functions allowing to manage the FLASH 00164 program operations. 00165 00166 @endverbatim 00167 * @{ 00168 */ 00169 00170 /** 00171 * @brief Program double word or fast program of a row at a specified address. 00172 * @param TypeProgram: Indicate the way to program at a specified address. 00173 * This parameter can be a value of @ref FLASH_Type_Program 00174 * @param Address: specifies the address to be programmed. 00175 * @param Data: specifies the data to be programmed 00176 * This parameter is the data for the double word program and the address where 00177 * are stored the data for the row fast program 00178 * 00179 * @retval HAL_StatusTypeDef HAL Status 00180 */ 00181 HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data) 00182 { 00183 HAL_StatusTypeDef status = HAL_ERROR; 00184 uint32_t prog_bit = 0; 00185 00186 /* Process Locked */ 00187 __HAL_LOCK(&pFlash); 00188 00189 /* Check the parameters */ 00190 assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram)); 00191 00192 /* Wait for last operation to be completed */ 00193 status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); 00194 00195 if(status == HAL_OK) 00196 { 00197 pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; 00198 00199 if(TypeProgram == FLASH_TYPEPROGRAM_DOUBLEWORD) 00200 { 00201 /* Program double-word (64-bit) at a specified address */ 00202 FLASH_Program_DoubleWord(Address, Data); 00203 prog_bit = FLASH_CR_PG; 00204 } 00205 else if((TypeProgram == FLASH_TYPEPROGRAM_FAST) || (TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST)) 00206 { 00207 /* Fast program a 32 row double-word (64-bit) at a specified address */ 00208 FLASH_Program_Fast(Address, (uint32_t)Data); 00209 00210 /* If it is the last row, the bit will be cleared at the end of the operation */ 00211 if(TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST) 00212 { 00213 prog_bit = FLASH_CR_FSTPG; 00214 } 00215 } 00216 00217 /* Wait for last operation to be completed */ 00218 status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); 00219 00220 /* If the program operation is completed, disable the PG or FSTPG Bit */ 00221 if (prog_bit != 0) 00222 { 00223 CLEAR_BIT(FLASH->CR, prog_bit); 00224 } 00225 } 00226 00227 /* Process Unlocked */ 00228 __HAL_UNLOCK(&pFlash); 00229 00230 return status; 00231 } 00232 00233 /** 00234 * @brief Program double word or fast program of a row at a specified address with interrupt enabled. 00235 * @param TypeProgram: Indicate the way to program at a specified address. 00236 * This parameter can be a value of @ref FLASH_Type_Program 00237 * @param Address: specifies the address to be programmed. 00238 * @param Data: specifies the data to be programmed 00239 * This parameter is the data for the double word program and the address where 00240 * are stored the data for the row fast program 00241 * 00242 * @retval HAL Status 00243 */ 00244 HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data) 00245 { 00246 HAL_StatusTypeDef status = HAL_OK; 00247 00248 /* Check the parameters */ 00249 assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram)); 00250 00251 /* Process Locked */ 00252 __HAL_LOCK(&pFlash); 00253 00254 pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; 00255 00256 /* Set internal variables used by the IRQ handler */ 00257 if(TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST) 00258 { 00259 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM_LAST; 00260 } 00261 else 00262 { 00263 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM; 00264 } 00265 pFlash.Address = Address; 00266 00267 /* Enable End of Operation and Error interrupts */ 00268 __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR); 00269 00270 if(TypeProgram == FLASH_TYPEPROGRAM_DOUBLEWORD) 00271 { 00272 /* Program double-word (64-bit) at a specified address */ 00273 FLASH_Program_DoubleWord(Address, Data); 00274 } 00275 else if((TypeProgram == FLASH_TYPEPROGRAM_FAST) || (TypeProgram == FLASH_TYPEPROGRAM_FAST_AND_LAST)) 00276 { 00277 /* Fast program a 32 row double-word (64-bit) at a specified address */ 00278 FLASH_Program_Fast(Address, (uint32_t)Data); 00279 } 00280 00281 return status; 00282 } 00283 00284 /** 00285 * @brief Handle FLASH interrupt request. 00286 * @retval None 00287 */ 00288 void HAL_FLASH_IRQHandler(void) 00289 { 00290 uint32_t tmp_page; 00291 00292 /* If the operation is completed, disable the PG, PNB, MER1, MER2 and PER Bit */ 00293 CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_MER1 | FLASH_CR_MER2 | FLASH_CR_PER | FLASH_CR_PNB)); 00294 00295 /* Disable the FSTPG Bit only if it is the last row programmed */ 00296 if(pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST) 00297 { 00298 CLEAR_BIT(FLASH->CR, FLASH_CR_FSTPG); 00299 } 00300 00301 /* Check FLASH operation error flags */ 00302 if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) || 00303 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) || 00304 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR)) || 00305 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) || 00306 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) || 00307 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))) 00308 { 00309 /*Save the error code*/ 00310 FLASH_SetErrorCode(); 00311 00312 /* FLASH error interrupt user callback */ 00313 if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGE_ERASE) 00314 { 00315 HAL_FLASH_EndOfOperationCallback(pFlash.Page); 00316 } 00317 else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASS_ERASE) 00318 { 00319 HAL_FLASH_EndOfOperationCallback(pFlash.Bank); 00320 } 00321 else if((pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM) || 00322 (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST)) 00323 { 00324 HAL_FLASH_OperationErrorCallback(pFlash.Address); 00325 } 00326 00327 HAL_FLASH_OperationErrorCallback(pFlash.Address); 00328 00329 /*Stop the procedure ongoing*/ 00330 pFlash.ProcedureOnGoing = FLASH_PROC_NONE; 00331 } 00332 00333 /* Check FLASH End of Operation flag */ 00334 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP)) 00335 { 00336 /* Clear FLASH End of Operation pending bit */ 00337 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); 00338 00339 if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGE_ERASE) 00340 { 00341 /* Nb of pages to erased can be decreased */ 00342 pFlash.NbPagesToErase--; 00343 00344 /* Check if there are still pages to erase*/ 00345 if(pFlash.NbPagesToErase != 0) 00346 { 00347 /* Indicate user which page has been erased*/ 00348 HAL_FLASH_EndOfOperationCallback(pFlash.Page); 00349 00350 /* Increment page number */ 00351 pFlash.Page++; 00352 tmp_page = pFlash.Page; 00353 FLASH_PageErase(tmp_page, pFlash.Bank); 00354 } 00355 else 00356 { 00357 /* No more pages to Erase */ 00358 /* Reset Address and stop Erase pages procedure */ 00359 pFlash.Page = 0xFFFFFFFF; 00360 pFlash.ProcedureOnGoing = FLASH_PROC_NONE; 00361 00362 /* Flush the caches to be sure of the data consistency */ 00363 FLASH_FlushCaches() ; 00364 00365 /* FLASH EOP interrupt user callback */ 00366 HAL_FLASH_EndOfOperationCallback(pFlash.Page); 00367 } 00368 } 00369 else 00370 { 00371 if(pFlash.ProcedureOnGoing == FLASH_PROC_MASS_ERASE) 00372 { 00373 /* MassErase ended. Return the selected bank */ 00374 /* Flush the caches to be sure of the data consistency */ 00375 FLASH_FlushCaches() ; 00376 00377 /* FLASH EOP interrupt user callback */ 00378 HAL_FLASH_EndOfOperationCallback(pFlash.Bank); 00379 } 00380 else if((pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM) || 00381 (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAM_LAST)) 00382 { 00383 /* Program ended. Return the selected address */ 00384 /* FLASH EOP interrupt user callback */ 00385 HAL_FLASH_EndOfOperationCallback(pFlash.Address); 00386 } 00387 00388 /*Clear the procedure ongoing*/ 00389 pFlash.ProcedureOnGoing = FLASH_PROC_NONE; 00390 } 00391 } 00392 00393 if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE) 00394 { 00395 /* Disable End of Operation and Error interrupts */ 00396 __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP | FLASH_IT_OPERR); 00397 00398 /* Process Unlocked */ 00399 __HAL_UNLOCK(&pFlash); 00400 } 00401 } 00402 00403 /** 00404 * @brief FLASH end of operation interrupt callback. 00405 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure 00406 * Mass Erase: Bank number which has been requested to erase 00407 * Page Erase: Page which has been erased 00408 * (if 0xFFFFFFFF, it means that all the selected pages have been erased) 00409 * Program: Address which was selected for data program 00410 * @retval None 00411 */ 00412 __weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue) 00413 { 00414 /* NOTE : This function should not be modified, when the callback is needed, 00415 the HAL_FLASH_EndOfOperationCallback could be implemented in the user file 00416 */ 00417 } 00418 00419 /** 00420 * @brief FLASH operation error interrupt callback. 00421 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure 00422 * Mass Erase: Bank number which has been requested to erase 00423 * Page Erase: Page number which returned an error 00424 * Program: Address which was selected for data program 00425 * @retval None 00426 */ 00427 __weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue) 00428 { 00429 /* NOTE : This function should not be modified, when the callback is needed, 00430 the HAL_FLASH_OperationErrorCallback could be implemented in the user file 00431 */ 00432 } 00433 00434 /** 00435 * @} 00436 */ 00437 00438 /** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions 00439 * @brief Management functions 00440 * 00441 @verbatim 00442 =============================================================================== 00443 ##### Peripheral Control functions ##### 00444 =============================================================================== 00445 [..] 00446 This subsection provides a set of functions allowing to control the FLASH 00447 memory operations. 00448 00449 @endverbatim 00450 * @{ 00451 */ 00452 00453 /** 00454 * @brief Unlock the FLASH control register access. 00455 * @retval HAL Status 00456 */ 00457 HAL_StatusTypeDef HAL_FLASH_Unlock(void) 00458 { 00459 if(READ_BIT(FLASH->CR, FLASH_CR_LOCK) != RESET) 00460 { 00461 /* Authorize the FLASH Registers access */ 00462 WRITE_REG(FLASH->KEYR, FLASH_KEY1); 00463 WRITE_REG(FLASH->KEYR, FLASH_KEY2); 00464 } 00465 else 00466 { 00467 return HAL_ERROR; 00468 } 00469 00470 return HAL_OK; 00471 } 00472 00473 /** 00474 * @brief Lock the FLASH control register access. 00475 * @retval HAL Status 00476 */ 00477 HAL_StatusTypeDef HAL_FLASH_Lock(void) 00478 { 00479 /* Set the LOCK Bit to lock the FLASH Registers access */ 00480 SET_BIT(FLASH->CR, FLASH_CR_LOCK); 00481 00482 return HAL_OK; 00483 } 00484 00485 /** 00486 * @brief Unlock the FLASH Option Bytes Registers access. 00487 * @retval HAL Status 00488 */ 00489 HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void) 00490 { 00491 if(READ_BIT(FLASH->CR, FLASH_CR_OPTLOCK) != RESET) 00492 { 00493 /* Authorizes the Option Byte register programming */ 00494 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1); 00495 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2); 00496 } 00497 else 00498 { 00499 return HAL_ERROR; 00500 } 00501 00502 return HAL_OK; 00503 } 00504 00505 /** 00506 * @brief Lock the FLASH Option Bytes Registers access. 00507 * @retval HAL Status 00508 */ 00509 HAL_StatusTypeDef HAL_FLASH_OB_Lock(void) 00510 { 00511 /* Set the OPTLOCK Bit to lock the FLASH Option Byte Registers access */ 00512 SET_BIT(FLASH->CR, FLASH_CR_OPTLOCK); 00513 00514 return HAL_OK; 00515 } 00516 00517 /** 00518 * @brief Launch the option byte loading. 00519 * @retval HAL Status 00520 */ 00521 HAL_StatusTypeDef HAL_FLASH_OB_Launch(void) 00522 { 00523 /* Set the bit to force the option byte reloading */ 00524 SET_BIT(FLASH->CR, FLASH_CR_OBL_LAUNCH); 00525 00526 /* Wait for last operation to be completed */ 00527 return(FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE)); 00528 } 00529 00530 /** 00531 * @} 00532 */ 00533 00534 /** @defgroup FLASH_Exported_Functions_Group3 Peripheral State and Errors functions 00535 * @brief Peripheral Errors functions 00536 * 00537 @verbatim 00538 =============================================================================== 00539 ##### Peripheral Errors functions ##### 00540 =============================================================================== 00541 [..] 00542 This subsection permits to get in run-time Errors of the FLASH peripheral. 00543 00544 @endverbatim 00545 * @{ 00546 */ 00547 00548 /** 00549 * @brief Get the specific FLASH error flag. 00550 * @retval FLASH_ErrorCode: The returned value can be: 00551 * @arg HAL_FLASH_ERROR_RD: FLASH Read Protection error flag (PCROP) 00552 * @arg HAL_FLASH_ERROR_PGS: FLASH Programming Sequence error flag 00553 * @arg HAL_FLASH_ERROR_PGP: FLASH Programming Parallelism error flag 00554 * @arg HAL_FLASH_ERROR_PGA: FLASH Programming Alignment error flag 00555 * @arg HAL_FLASH_ERROR_WRP: FLASH Write protected error flag 00556 * @arg HAL_FLASH_ERROR_OPERATION: FLASH operation Error flag 00557 * @arg HAL_FLASH_ERROR_NONE: No error set 00558 * @arg HAL_FLASH_ERROR_OP: FLASH Operation error 00559 * @arg HAL_FLASH_ERROR_PROG: FLASH Programming error 00560 * @arg HAL_FLASH_ERROR_WRP: FLASH Write protection error 00561 * @arg HAL_FLASH_ERROR_PGA: FLASH Programming alignment error 00562 * @arg HAL_FLASH_ERROR_SIZ: FLASH Size error 00563 * @arg HAL_FLASH_ERROR_PGS: FLASH Programming sequence error 00564 * @arg HAL_FLASH_ERROR_MIS: FLASH Fast programming data miss error 00565 * @arg HAL_FLASH_ERROR_FAST: FLASH Fast programming error 00566 * @arg HAL_FLASH_ERROR_RD: FLASH PCROP read error 00567 * @arg HAL_FLASH_ERROR_OPTV: FLASH Option validity error 00568 * @arg HAL_FLASH_ERROR_ECCD: FLASH two ECC errors have been detected 00569 */ 00570 uint32_t HAL_FLASH_GetError(void) 00571 { 00572 return pFlash.ErrorCode; 00573 } 00574 00575 /** 00576 * @} 00577 */ 00578 00579 /** 00580 * @} 00581 */ 00582 00583 /* Private functions ---------------------------------------------------------*/ 00584 00585 /** @addtogroup FLASH_Private_Functions 00586 * @{ 00587 */ 00588 00589 /** 00590 * @brief Wait for a FLASH operation to complete. 00591 * @param Timeout: maximum flash operation timeout 00592 * @retval HAL_StatusTypeDef HAL Status 00593 */ 00594 HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout) 00595 { 00596 /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset. 00597 Even if the FLASH operation fails, the BUSY flag will be reset and an error 00598 flag will be set */ 00599 00600 uint32_t timeout = HAL_GetTick() + Timeout; 00601 00602 while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY)) 00603 { 00604 if(Timeout != HAL_MAX_DELAY) 00605 { 00606 if(HAL_GetTick() >= timeout) 00607 { 00608 return HAL_TIMEOUT; 00609 } 00610 } 00611 } 00612 00613 if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) || 00614 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) || 00615 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR)) || 00616 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) || 00617 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) || 00618 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))) 00619 { 00620 /*Save the error code*/ 00621 FLASH_SetErrorCode(); 00622 00623 return HAL_ERROR; 00624 } 00625 00626 /* Check FLASH End of Operation flag */ 00627 if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP)) 00628 { 00629 /* Clear FLASH End of Operation pending bit */ 00630 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP); 00631 } 00632 00633 /* If there is an error flag set */ 00634 return HAL_OK; 00635 } 00636 00637 /** 00638 * @brief Set the specific FLASH error flag. 00639 * @retval None 00640 */ 00641 static void FLASH_SetErrorCode(void) 00642 { 00643 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR)) 00644 { 00645 pFlash.ErrorCode |= HAL_FLASH_ERROR_OP; 00646 } 00647 00648 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) 00649 { 00650 pFlash.ErrorCode |= HAL_FLASH_ERROR_PROG; 00651 } 00652 00653 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) 00654 { 00655 pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP; 00656 } 00657 00658 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) 00659 { 00660 pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA; 00661 } 00662 00663 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) 00664 { 00665 pFlash.ErrorCode |= HAL_FLASH_ERROR_SIZ; 00666 } 00667 00668 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR)) 00669 { 00670 pFlash.ErrorCode |= HAL_FLASH_ERROR_PGS; 00671 } 00672 00673 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) 00674 { 00675 pFlash.ErrorCode |= HAL_FLASH_ERROR_MIS; 00676 } 00677 00678 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) 00679 { 00680 pFlash.ErrorCode |= HAL_FLASH_ERROR_FAST; 00681 } 00682 00683 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR)) 00684 { 00685 pFlash.ErrorCode |= HAL_FLASH_ERROR_RD; 00686 } 00687 00688 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) 00689 { 00690 pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV; 00691 } 00692 00693 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD)) 00694 { 00695 pFlash.ErrorCode |= HAL_FLASH_ERROR_ECCD; 00696 } 00697 00698 /* Clear error programming flags */ 00699 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS); 00700 } 00701 00702 /** 00703 * @brief Program double-word (64-bit) at a specified address. 00704 * @param Address: specifies the address to be programmed. 00705 * @param Data: specifies the data to be programmed. 00706 * @retval None 00707 */ 00708 static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data) 00709 { 00710 /* Check the parameters */ 00711 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address)); 00712 00713 /* Set PG bit */ 00714 SET_BIT(FLASH->CR, FLASH_CR_PG); 00715 00716 /* Program the double word */ 00717 *(__IO uint32_t*)Address = (uint32_t)Data; 00718 *(__IO uint32_t*)(Address+4) = (uint32_t)(Data >> 32); 00719 } 00720 00721 /** 00722 * @brief Fast program a 32 row double-word (64-bit) at a specified address. 00723 * @param Address: specifies the address to be programmed. 00724 * @param DataAddress: specifies the address where the data are stored. 00725 * @retval None 00726 */ 00727 static void FLASH_Program_Fast(uint32_t Address, uint32_t DataAddress) 00728 { 00729 uint8_t row_index = 32; 00730 __IO uint64_t *dest_addr = (__IO uint64_t*)Address; 00731 __IO uint64_t *src_addr = (__IO uint64_t*)DataAddress; 00732 00733 /* Check the parameters */ 00734 assert_param(IS_FLASH_MAIN_MEM_ADDRESS(Address)); 00735 00736 /* Set FSTPG bit */ 00737 SET_BIT(FLASH->CR, FLASH_CR_FSTPG); 00738 00739 /* Disable interrupts to avoid any interruption during the loop */ 00740 __disable_irq(); 00741 00742 /* Program the 32 double word */ 00743 do 00744 { 00745 *dest_addr++ = *src_addr++; 00746 } while (--row_index != 0); 00747 00748 /* Re-enable the interrupts */ 00749 __enable_irq(); 00750 } 00751 00752 /** 00753 * @} 00754 */ 00755 00756 #endif /* HAL_FLASH_MODULE_ENABLED */ 00757 00758 /** 00759 * @} 00760 */ 00761 00762 /** 00763 * @} 00764 */ 00765 00766 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 00767
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