tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_flash_ex.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f0xx_hal_flash_ex.c
   4   * @author  MCD Application Team
   5   * @version V1.2.0
   6   * @date    11-December-2014
   7   * @brief   Extended FLASH HAL module driver.
   8   *          This file provides firmware functions to manage the following
   9   *          functionalities of the FLASH peripheral:
  10   *           + Extended Initialization/de-initialization functions
  11   *           + Extended I/O operation functions
  12   *           + Extended Peripheral Control functions
  13   *           + Extended Peripheral State functions
  14   *
  15   @verbatim
  16   ==============================================================================
  17                ##### Flash peripheral extended features  #####
  18   ==============================================================================
  19
  20                       ##### How to use this driver #####
  21   ==============================================================================
  22   [..] This driver provides functions to configure and program the FLASH memory
  23        of all STM32F0xxx devices. It includes
  24
  25         (+) Set/Reset the write protection
  26         (+) Program the user Option Bytes
  27         (+) Get the Read protection Level
  28
  29   @endverbatim
  30   ******************************************************************************
  31   * @attention
  32   *
  33   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  34   *
  35   * Redistribution and use in source and binary forms, with or without modification,
  36   * are permitted provided that the following conditions are met:
  37   *   1. Redistributions of source code must retain the above copyright notice,
  38   *      this list of conditions and the following disclaimer.
  39   *   2. Redistributions in binary form must reproduce the above copyright notice,
  40   *      this list of conditions and the following disclaimer in the documentation
  41   *      and/or other materials provided with the distribution.
  42   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  43   *      may be used to endorse or promote products derived from this software
  44   *      without specific prior written permission.
  45   *
  46   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  47   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  49   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  50   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  52   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  53   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  54   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  55   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  56   *
  57   ******************************************************************************
  58   */
  59
  60 /* Includes ------------------------------------------------------------------*/
  61 #include "stm32f0xx_hal.h"
  62
  63 /** @addtogroup STM32F0xx_HAL_Driver
  64   * @{
  65   */
  66
  67 /** @defgroup FLASHEx FLASHEx Extended HAL module driver
  68   * @brief FLASH Extended HAL module driver
  69   * @{
  70   */
  71
  72 #ifdef HAL_FLASH_MODULE_ENABLED
  73
  74 /* Private typedef -----------------------------------------------------------*/
  75 /* Private define ------------------------------------------------------------*/
  76
  77 /** @addtogroup FLASHEx_Private_Constants FLASHEx Private Constants
  78   * @{
  79   */
  80 #define HAL_FLASH_TIMEOUT_VALUE   ((uint32_t)50000)/* 50 s */
  81
  82 /**
  83   * @}
  84   */
  85
  86 /* Private macro -------------------------------------------------------------*/
  87 /* Private variables ---------------------------------------------------------*/
  88 /** @addtogroup FLASHEx_Private_Variables FLASHEx Private Variables
  89   * @{
  90   */
  91
  92 /* Variables used for Erase pages under interruption*/
  93 extern FLASH_ProcessTypeDef pFlash;
  94
  95 /**
  96   * @}
  97   */
  98
  99 /* Private function prototypes -----------------------------------------------*/
 100 /** @addtogroup FLASHEx_Private_Functions FLASHEx Private Functions
 101   * @{
 102   */
 103
 104 /* Erase operations */
 105 extern void              FLASH_PageErase(uint32_t PageAddress);
 106 static void              FLASH_MassErase(void);
 107
 108 /* Option bytes control */
 109 static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage);
 110 static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage);
 111 static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel);
 112 static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig);
 113 static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data);
 114 static uint32_t          FLASH_OB_GetWRP(void);
 115 static FlagStatus        FLASH_OB_GetRDP(void);
 116 static uint8_t           FLASH_OB_GetUser(void);
 117
 118 /**
 119   * @}
 120   */
 121
 122 /** @defgroup FLASHEx_Extern_Functions FLASHEx Extern Functions
 123   * @{
 124   */
 125 /* Private functions ---------------------------------------------------------*/
 126 extern HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout);
 127
 128 /**
 129   * @}
 130   */
 131
 132 /** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions
 133   * @{
 134   */
 135
 136 /** @defgroup FLASHEx_Exported_Functions_Group2 Extended I/O operation functions
 137   * @brief    Extended I/O operation functions
 138   *
 139 @verbatim
 140  ===============================================================================
 141                       ##### IO operation functions #####
 142  ===============================================================================
 143
 144 @endverbatim
 145   * @{
 146   */
 147 /**
 148   * @brief  Perform a mass erase or erase the specified FLASH memory pages
 149   * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
 150   *         The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
 151   * @param[in]  pEraseInit: pointer to an FLASH_EraseInitTypeDef structure that
 152   *         contains the configuration information for the erasing.
 153   *
 154   * @param[out]  PageError: pointer to variable  that
 155   *         contains the configuration information on faulty page in case of error
 156   *         (0xFFFFFFFF means that all the pages have been correctly erased)
 157   *
 158   * @retval HAL_StatusTypeDef HAL Status
 159   */
 160 HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *PageError)
 161 {
 162   HAL_StatusTypeDef status = HAL_ERROR;
 163   uint32_t address = 0;
 164
 165   /* Process Locked */
 166   __HAL_LOCK(&pFlash);
 167
 168   /* Check the parameters */
 169   assert_param(IS_TYPEERASE(pEraseInit->TypeErase));
 170
 171   /* Wait for last operation to be completed */
 172   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 173
 174   if (status == HAL_OK)
 175   {
 176     if (pEraseInit->TypeErase == TYPEERASE_MASSERASE)
 177     {
 178       /*Mass erase to be done*/
 179       FLASH_MassErase();
 180
 181       /* Wait for last operation to be completed */
 182       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 183
 184       /* If the erase operation is completed, disable the MER Bit */
 185       CLEAR_BIT(FLASH->CR, FLASH_CR_MER);
 186     }
 187     else
 188     {
 189       /* Check the parameters */
 190       assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress));
 191       assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages));
 192
 193       /*Initialization of PageError variable*/
 194       *PageError = 0xFFFFFFFF;
 195
 196       /* Erase by page by page to be done*/
 197       for(address = pEraseInit->PageAddress;
 198           address < (pEraseInit->PageAddress + (pEraseInit->NbPages)*FLASH_PAGE_SIZE);
 199           address += FLASH_PAGE_SIZE)
 200       {
 201         FLASH_PageErase(address);
 202
 203         /* Wait for last operation to be completed */
 204         status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 205
 206         /* If the erase operation is completed, disable the PER Bit */
 207         CLEAR_BIT(FLASH->CR, FLASH_CR_PER);
 208
 209         if (status != HAL_OK)
 210         {
 211           /* In case of error, stop erase procedure and return the faulty address */
 212           *PageError = address;
 213           break;
 214         }
 215       }
 216     }
 217   }
 218
 219   /* Process Unlocked */
 220   __HAL_UNLOCK(&pFlash);
 221
 222   return status;
 223 }
 224
 225 /**
 226   * @brief  Perform a mass erase or erase the specified FLASH memory sectors with interrupt enabled
 227   * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
 228   *         The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
 229   * @param  pEraseInit: pointer to an FLASH_EraseInitTypeDef structure that
 230   *         contains the configuration information for the erasing.
 231   *
 232   * @retval HAL_StatusTypeDef HAL Status
 233   */
 234 HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit)
 235 {
 236   HAL_StatusTypeDef status = HAL_OK;
 237
 238   /* Process Locked */
 239   __HAL_LOCK(&pFlash);
 240
 241   /* If procedure already ongoing, reject the next one */
 242   if (pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
 243   {
 244     return HAL_ERROR;
 245   }
 246
 247   /* Check the parameters */
 248   assert_param(IS_TYPEERASE(pEraseInit->TypeErase));
 249
 250   /* Enable End of FLASH Operation and Error source interrupts */
 251   __HAL_FLASH_ENABLE_IT((FLASH_IT_EOP | FLASH_IT_ERR));
 252
 253   if (pEraseInit->TypeErase == TYPEERASE_MASSERASE)
 254   {
 255     /*Mass erase to be done*/
 256     pFlash.ProcedureOnGoing = FLASH_PROC_MASSERASE;
 257     FLASH_MassErase();
 258   }
 259   else
 260   {
 261     /* Erase by page to be done*/
 262
 263     /* Check the parameters */
 264     assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress));
 265     assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages));
 266
 267     pFlash.ProcedureOnGoing = FLASH_PROC_PAGEERASE;
 268     pFlash.DataRemaining = pEraseInit->NbPages;
 269     pFlash.Address = pEraseInit->PageAddress;
 270
 271     /*Erase 1st page and wait for IT*/
 272     FLASH_PageErase(pEraseInit->PageAddress);
 273   }
 274
 275   return status;
 276 }
 277
 278 /**
 279   * @}
 280   */
 281
 282 /** @defgroup FLASHEx_Exported_Functions_Group3 Extended Peripheral Control functions
 283   * @brief    Extended Peripheral Control functions
 284   *
 285 @verbatim
 286  ===============================================================================
 287                       ##### Peripheral Control functions #####
 288  ===============================================================================
 289     [..]
 290     This subsection provides a set of functions allowing to control the FLASH
 291     memory operations.
 292
 293 @endverbatim
 294   * @{
 295   */
 296 /**
 297   * @brief  Erases the FLASH option bytes.
 298   * @note   This functions erases all option bytes except the Read protection (RDP).
 299   *         The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
 300   *         The function HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
 301   *         The function HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
 302   *         (system reset will occur)
 303   * @retval HAL status
 304   */
 305
 306 HAL_StatusTypeDef HAL_FLASHEx_OBErase(void)
 307 {
 308   uint8_t rdptmp = OB_RDP_LEVEL_0;
 309   HAL_StatusTypeDef status = HAL_ERROR;
 310   FLASH_OBProgramInitTypeDef optionsbytes;
 311
 312   /* Get the actual read protection Option Byte value */
 313   HAL_FLASHEx_OBGetConfig(&optionsbytes);
 314   if(optionsbytes.RDPLevel != RESET)
 315   {
 316     rdptmp = OB_RDP_LEVEL_1;
 317   }
 318
 319   /* Wait for last operation to be completed */
 320   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 321
 322   if(status == HAL_OK)
 323   {
 324     /* Clean the error context */
 325     pFlash.ErrorCode = FLASH_ERROR_NONE;
 326
 327     /* If the previous operation is completed, proceed to erase the option bytes */
 328     SET_BIT(FLASH->CR, FLASH_CR_OPTER);
 329     SET_BIT(FLASH->CR, FLASH_CR_STRT);
 330
 331     /* Wait for last operation to be completed */
 332     status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 333
 334     /* If the erase operation is completed, disable the OPTER Bit */
 335     CLEAR_BIT(FLASH->CR, FLASH_CR_OPTER);
 336
 337     if(status == HAL_OK)
 338     {
 339       /* Restore the last read protection Option Byte value */
 340       optionsbytes.OptionType = OPTIONBYTE_RDP;
 341       optionsbytes.RDPLevel = rdptmp;
 342       status = HAL_FLASHEx_OBProgram(&optionsbytes);
 343     }
 344   }
 345
 346   /* Return the erase status */
 347   return status;
 348 }
 349
 350 /**
 351   * @brief  Program option bytes
 352   * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
 353   *         The function HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
 354   *         The function HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
 355   *         (system reset will occur)
 356   *
 357   * @param  pOBInit: pointer to an FLASH_OBInitStruct structure that
 358   *         contains the configuration information for the programming.
 359   *
 360   * @retval HAL_StatusTypeDef HAL Status
 361   */
 362 HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit)
 363 {
 364   HAL_StatusTypeDef status = HAL_ERROR;
 365
 366   /* Check the parameters */
 367   assert_param(IS_OPTIONBYTE(pOBInit->OptionType));
 368
 369   /* Write protection configuration */
 370   if((pOBInit->OptionType & OPTIONBYTE_WRP) == OPTIONBYTE_WRP)
 371   {
 372     assert_param(IS_WRPSTATE(pOBInit->WRPState));
 373     if (pOBInit->WRPState == WRPSTATE_ENABLE)
 374     {
 375       /* Enable of Write protection on the selected page */
 376       status = FLASH_OB_EnableWRP(pOBInit->WRPPage);
 377     }
 378     else
 379     {
 380       /* Disable of Write protection on the selected page */
 381       status = FLASH_OB_DisableWRP(pOBInit->WRPPage);
 382     }
 383   }
 384
 385   /* Read protection configuration */
 386   if((pOBInit->OptionType & OPTIONBYTE_RDP) == OPTIONBYTE_RDP)
 387   {
 388     status = FLASH_OB_RDP_LevelConfig(pOBInit->RDPLevel);
 389   }
 390
 391   /* USER configuration */
 392   if((pOBInit->OptionType & OPTIONBYTE_USER) == OPTIONBYTE_USER)
 393   {
 394     status = FLASH_OB_UserConfig(pOBInit->USERConfig);
 395   }
 396
 397   /* DATA configuration*/
 398   if((pOBInit->OptionType & OPTIONBYTE_DATA) == OPTIONBYTE_DATA)
 399   {
 400     status = FLASH_OB_ProgramData(pOBInit->DATAAddress, pOBInit->DATAData);
 401   }
 402
 403   return status;
 404 }
 405
 406 /**
 407   * @brief  Get the Option byte configuration
 408   * @param  pOBInit: pointer to an FLASH_OBInitStruct structure that
 409   *         contains the configuration information for the programming.
 410   *
 411   * @retval None
 412   */
 413 void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit)
 414 {
 415   pOBInit->OptionType = OPTIONBYTE_WRP | OPTIONBYTE_RDP | OPTIONBYTE_USER;
 416
 417   /*Get WRP*/
 418   pOBInit->WRPPage = FLASH_OB_GetWRP();
 419
 420   /*Get RDP Level*/
 421   pOBInit->RDPLevel = FLASH_OB_GetRDP();
 422
 423   /*Get USER*/
 424   pOBInit->USERConfig = FLASH_OB_GetUser();
 425 }
 426
 427 /**
 428   * @}
 429   */
 430
 431 /**
 432   * @}
 433   */
 434
 435 /** @defgroup FLASHEx_Private_Functions FLASHEx Private Functions
 436   * @{
 437   */
 438
 439 /**
 440   * @brief  Mass erase of FLASH memory
 441   * @retval None
 442   */
 443 static void FLASH_MassErase(void)
 444 {
 445
 446   /* Clean the error context */
 447   pFlash.ErrorCode = FLASH_ERROR_NONE;
 448
 449   /* Proceed to erase all sectors */
 450   SET_BIT(FLASH->CR, FLASH_CR_MER);
 451   SET_BIT(FLASH->CR, FLASH_CR_STRT);
 452 }
 453
 454 /**
 455   * @brief  Enable the write protection of the desired pages
 456   * @note   When the memory read protection level is selected (RDP level = 1),
 457   *         it is not possible to program or erase the flash page i if CortexM4
 458   *         debug features are connected or boot code is executed in RAM, even if nWRPi = 1
 459   *
 460   * @param  WriteProtectPage: specifies the page(s) to be write protected.
 461   *         The value of this parameter depend on device used within the same series
 462   * @retval HAL status
 463   */
 464 static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage)
 465 {
 466   HAL_StatusTypeDef status = HAL_OK;
 467 #if defined(STM32F030x6) || defined(STM32F030x8) || defined(STM32F031x6) || defined(STM32F038xx) || defined(STM32F070x6) || \
 468     defined(STM32F051x8) || defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F058xx)
 469   uint16_t WRP0_Data = 0xFFFF;
 470 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx)
 471   uint16_t WRP1_Data = 0xFFFF;
 472 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx */
 473 #endif /* STM32F030x6 || STM32F030x8 || STM32F031x6 || STM32F038xx || STM32F051x8 || STM32F042x6 || STM32F048xx || STM32F058xx || STM32F070x6 */
 474
 475 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 476     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 477   uint16_t WRP0_Data = 0xFFFF, WRP1_Data = 0xFFFF, WRP2_Data = 0xFFFF, WRP3_Data = 0xFFFF;
 478 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F070xB || STM32F030xC */
 479
 480   /* Check the parameters */
 481   assert_param(IS_OB_WRP(WriteProtectPage));
 482
 483   WriteProtectPage = (uint32_t)(~WriteProtectPage);
 484 #if defined(STM32F030x6) || defined(STM32F030x8) || defined(STM32F031x6) || defined(STM32F038xx) || defined(STM32F070x6) || \
 485     defined(STM32F051x8) || defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F058xx)
 486   WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK);
 487 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx)
 488   WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8);
 489 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx */
 490 #endif /* STM32F030x6 || STM32F030x8 || STM32F031x6 || STM32F038xx || STM32F051x8 || STM32F042x6 || STM32F048xx || STM32F058xx || STM32F070x6 */
 491
 492 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 493     defined(STM32F091xC) || defined(STM32F098xx)|| defined(STM32F030xC)
 494   WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK);
 495   WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8);
 496   WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16);
 497 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)
 498   WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO63MASK) >> 24);
 499 #endif /* STM32F071xB || STM32F072xB || STM32F078xx */
 500 #if defined(STM32F091xC) || defined(STM32F098xx)
 501   WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24);
 502 #endif /* STM32F091xC || STM32F098xx */
 503 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F070xB || STM32F030xC */
 504
 505   /* Wait for last operation to be completed */
 506   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 507
 508   if(status == HAL_OK)
 509   {
 510     /* Clean the error context */
 511     pFlash.ErrorCode = FLASH_ERROR_NONE;
 512
 513     SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
 514
 515     if(WRP0_Data != 0xFF)
 516     {
 517       OB->WRP0 &= WRP0_Data;
 518
 519       /* Wait for last operation to be completed */
 520       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 521     }
 522
 523 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx) || \
 524     defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 525     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 526     if((status == HAL_OK) && (WRP1_Data != 0xFF))
 527     {
 528       OB->WRP1 &= WRP1_Data;
 529
 530       /* Wait for last operation to be completed */
 531       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 532     }
 533 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx || STM32F071xB || STM32F070xB ||
 534           STM32F072xB || STM32F078xx || STM32F091xC || STM32F098xx || STM32F030xC */
 535
 536 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)|| defined(STM32F070xB) || \
 537     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 538     if((status == HAL_OK) && (WRP2_Data != 0xFF))
 539     {
 540       OB->WRP2 &= WRP2_Data;
 541
 542       /* Wait for last operation to be completed */
 543       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 544     }
 545
 546     if((status == HAL_OK) && (WRP3_Data != 0xFF))
 547     {
 548       OB->WRP3 &= WRP3_Data;
 549
 550       /* Wait for last operation to be completed */
 551       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 552     }
 553 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F070xB || STM32F030xC*/
 554
 555     /* if the program operation is completed, disable the OPTPG Bit */
 556     CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
 557   }
 558
 559   return status;
 560 }
 561
 562 /**
 563   * @brief  Disable the write protection of the desired pages
 564   * @note   When the memory read protection level is selected (RDP level = 1),
 565   *         it is not possible to program or erase the flash page i if CortexM4
 566   *         debug features are connected or boot code is executed in RAM, even if nWRPi = 1
 567   *
 568   * @param  WriteProtectPage: specifies the page(s) to be write unprotected.
 569   *         The value of this parameter depend on device used within the same series
 570   * @retval HAL status
 571   */
 572 static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage)
 573 {
 574   HAL_StatusTypeDef status = HAL_OK;
 575 #if defined(STM32F030x6) || defined(STM32F030x8) || defined(STM32F031x6) || defined(STM32F038xx) || defined(STM32F070x6) || \
 576     defined(STM32F051x8) || defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F058xx)
 577   uint16_t WRP0_Data = 0xFFFF;
 578 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx)
 579   uint16_t WRP1_Data = 0xFFFF;
 580 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx */
 581 #endif /* STM32F030x6 || STM32F030x8 || STM32F031x6 || STM32F038xx || STM32F051x8 || STM32F042x6 || STM32F048xx || STM32F058xx || STM32F070x6 */
 582
 583 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 584     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 585   uint16_t WRP0_Data = 0xFFFF, WRP1_Data = 0xFFFF, WRP2_Data = 0xFFFF, WRP3_Data = 0xFFFF;
 586 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F070xB || STM32F030xC */
 587
 588   /* Check the parameters */
 589   assert_param(IS_OB_WRP(WriteProtectPage));
 590
 591 #if defined(STM32F030x6) || defined(STM32F030x8) || defined(STM32F031x6) || defined(STM32F038xx) || STM32F070x6 || \
 592     defined(STM32F051x8) || defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F058xx)
 593   WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK);
 594 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx)
 595   WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8);
 596 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx */
 597 #endif /* STM32F030x6 || STM32F030x8 || STM32F031x6 || STM32F038xx || STM32F051x8 || STM32F042x6 || STM32F048xx || STM32F058xx || STM32F070x6 */
 598
 599 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 600     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 601   WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK);
 602   WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8);
 603   WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16);
 604 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)
 605   WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO63MASK) >> 24);
 606 #endif /* STM32F071xB || STM32F072xB || STM32F078xx */
 607 #if defined(STM32F091xC) || defined(STM32F098xx)
 608   WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24);
 609 #endif /* STM32F091xC || STM32F098xx */
 610 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F030xC || STM32F070xB */
 611
 612   /* Wait for last operation to be completed */
 613   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 614
 615   if(status == HAL_OK)
 616   {
 617     /* Clean the error context */
 618     pFlash.ErrorCode = FLASH_ERROR_NONE;
 619
 620     SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
 621
 622     if(WRP0_Data != 0xFF)
 623     {
 624       OB->WRP0 |= WRP0_Data;
 625
 626       /* Wait for last operation to be completed */
 627       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 628     }
 629
 630 #if defined(STM32F030x8) || defined(STM32F051x8) || defined(STM32F058xx) || \
 631     defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 632     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 633     if((status == HAL_OK) && (WRP1_Data != 0xFF))
 634     {
 635       OB->WRP1 |= WRP1_Data;
 636
 637       /* Wait for last operation to be completed */
 638       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 639     }
 640 #endif /* STM32F030x8 || STM32F051x8 || STM32F058xx || STM32F071xB || STM32F070xB ||
 641           STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F030xC */
 642
 643 #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || \
 644     defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
 645     if((status == HAL_OK) && (WRP2_Data != 0xFF))
 646     {
 647       OB->WRP2 |= WRP2_Data;
 648
 649       /* Wait for last operation to be completed */
 650       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 651     }
 652
 653     if((status == HAL_OK) && (WRP3_Data != 0xFF))
 654     {
 655       OB->WRP3 |= WRP3_Data;
 656
 657       /* Wait for last operation to be completed */
 658       status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 659     }
 660 #endif /* STM32F071xB || STM32F072xB || STM32F078xx  || STM32F091xC || STM32F098xx || STM32F070xB || STM32F030xC */
 661
 662     /* if the program operation is completed, disable the OPTPG Bit */
 663     CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
 664   }
 665   return status;
 666 }
 667
 668 /**
 669   * @brief  Set the read protection level.
 670   * @param  ReadProtectLevel: specifies the read protection level.
 671   *         This parameter can be one of the following values:
 672   *            @arg OB_RDP_LEVEL_0: No protection
 673   *            @arg OB_RDP_LEVEL_1: Read protection of the memory
 674   *            @arg OB_RDP_LEVEL_2: Full chip protection
 675   *
 676   * @note   Warning: When enabling OB_RDP level 2 it's no more possible to go back to level 1 or 0
 677   *
 678   * @retval HAL status
 679   */
 680 static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel)
 681 {
 682   HAL_StatusTypeDef status = HAL_OK;
 683
 684   /* Check the parameters */
 685   assert_param(IS_OB_RDP_LEVEL(ReadProtectLevel));
 686
 687   /* Wait for last operation to be completed */
 688   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 689
 690   if(status == HAL_OK)
 691   {
 692     /* Clean the error context */
 693     pFlash.ErrorCode = FLASH_ERROR_NONE;
 694
 695     /* Enable the Option Bytes Programming operation */
 696     SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
 697
 698     WRITE_REG(OB->RDP, ReadProtectLevel);
 699
 700     /* Wait for last operation to be completed */
 701     status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 702
 703       /* if the program operation is completed, disable the OPTPG Bit */
 704       CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
 705     }
 706
 707   return status;
 708 }
 709
 710 /**
 711   * @brief  Program the FLASH User Option Byte.
 712   * @note   Programming of the OB should be performed only after an erase (otherwise PGERR occurs)
 713   * @param  UserConfig: The FLASH User Option Bytes values: IWDG_SW(Bit0), RST_STOP(Bit1), RST_STDBY(Bit2), BOOT1(Bit4),
 714   *         VDDA_Analog_Monitoring(Bit5) and SRAM_Parity_Enable(Bit6).
 715   * @retval HAL status
 716   */
 717 static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig)
 718 {
 719   HAL_StatusTypeDef status = HAL_OK;
 720
 721   /* Check the parameters */
 722   assert_param(IS_OB_WDG_SOURCE((UserConfig&OB_WDG_SW)));
 723   assert_param(IS_OB_STOP_SOURCE((UserConfig&OB_STOP_NO_RST)));
 724   assert_param(IS_OB_STDBY_SOURCE((UserConfig&OB_STDBY_NO_RST)));
 725   assert_param(IS_OB_BOOT1((UserConfig&OB_BOOT1_SET)));
 726   assert_param(IS_OB_VDDA_ANALOG((UserConfig&OB_VDDA_ANALOG_ON)));
 727   assert_param(IS_OB_SRAM_PARITY((UserConfig&OB_RAM_PARITY_CHECK_RESET)));
 728 #if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)|| defined(STM32F070x6)
 729   assert_param(IS_OB_BOOT_SEL((UserConfig&OB_BOOT_SEL_SET)));
 730   assert_param(IS_OB_BOOT0((UserConfig&OB_BOOT0_SET)));
 731 #endif /* STM32F042x6 || STM32F048xx || STM32F091xC || STM32F098xx || STM32F030xC || STM32F070x6 */
 732
 733   /* Wait for last operation to be completed */
 734   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 735
 736   if(status == HAL_OK)
 737   {
 738     /* Clean the error context */
 739     pFlash.ErrorCode = FLASH_ERROR_NONE;
 740
 741     /* Enable the Option Bytes Programming operation */
 742     SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
 743
 744 #if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)|| defined(STM32F070x6)
 745     OB->USER = UserConfig;
 746 #else
 747     OB->USER = (UserConfig | 0x88);
 748 #endif /* STM32F042x6 || STM32F048xx || STM32F091xC || STM32F098xx || STM32F030xC || STM32F070x6 */
 749
 750     /* Wait for last operation to be completed */
 751     status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 752
 753     /* if the program operation is completed, disable the OPTPG Bit */
 754     CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
 755   }
 756
 757   return status;
 758 }
 759
 760 /**
 761   * @brief  Programs a half word at a specified Option Byte Data address.
 762   * @note   The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
 763   *         The function HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes
 764   *         The function HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes
 765   *         (system reset will occur)
 766   *         Programming of the OB should be performed only after an erase (otherwise PGERR occurs)
 767   * @param  Address: specifies the address to be programmed.
 768   *         This parameter can be 0x1FFFF804 or 0x1FFFF806.
 769   * @param  Data: specifies the data to be programmed.
 770   * @retval HAL status
 771   */
 772 static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data)
 773 {
 774   HAL_StatusTypeDef status = HAL_ERROR;
 775
 776   /* Check the parameters */
 777   assert_param(IS_OB_DATA_ADDRESS(Address));
 778
 779   /* Wait for last operation to be completed */
 780   status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 781
 782   if(status == HAL_OK)
 783   {
 784     /* Clean the error context */
 785     pFlash.ErrorCode = FLASH_ERROR_NONE;
 786
 787     /* Enables the Option Bytes Programming operation */
 788     SET_BIT(FLASH->CR, FLASH_CR_OPTPG);
 789     *(__IO uint16_t*)Address = Data;
 790
 791     /* Wait for last operation to be completed */
 792     status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
 793
 794       /* If the program operation is completed, disable the OPTPG Bit */
 795       CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG);
 796     }
 797   /* Return the Option Byte Data Program Status */
 798   return status;
 799 }
 800
 801 /**
 802   * @brief  Return the FLASH Write Protection Option Bytes value.
 803   * @retval The FLASH Write Protection Option Bytes value
 804   */
 805 static uint32_t FLASH_OB_GetWRP(void)
 806 {
 807   /* Return the FLASH write protection Register value */
 808   return (uint32_t)(READ_REG(FLASH->WRPR));
 809 }
 810
 811 /**
 812   * @brief  Returns the FLASH Read Protection level.
 813   * @retval FLASH ReadOut Protection Status:
 814   *           - SET, when OB_RDP_Level_1 or OB_RDP_Level_2 is set
 815   *           - RESET, when OB_RDP_Level_0 is set
 816   */
 817 static FlagStatus FLASH_OB_GetRDP(void)
 818 {
 819   FlagStatus readstatus = RESET;
 820
 821   if ((uint8_t)READ_BIT(FLASH->OBR, FLASH_OBR_RDPRT1) != RESET)
 822   {
 823     readstatus = SET;
 824   }
 825
 826   return readstatus;
 827 }
 828
 829 /**
 830   * @brief  Return the FLASH User Option Byte value.
 831   * @retval The FLASH User Option Bytes values: IWDG_SW(Bit0), RST_STOP(Bit1), RST_STDBY(Bit2), BOOT1(Bit4),
 832   *         VDDA_Analog_Monitoring(Bit5) and SRAM_Parity_Enable(Bit6).
 833   */
 834 static uint8_t FLASH_OB_GetUser(void)
 835 {
 836   /* Return the User Option Byte */
 837   return (uint8_t)(READ_REG(FLASH->OBR) >> 8);
 838 }
 839
 840 /**
 841   * @}
 842   */
 843
 844 #endif /* HAL_FLASH_MODULE_ENABLED */
 845
 846 /**
 847   * @}
 848   */
 849
 850 /**
 851   * @}
 852   */
 853
 854 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/