int/com/lib/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f7xx_hal.c
   4   * @author  MCD Application Team
   5   * @version V1.1.0
   6   * @date    22-April-2016
   7   * @brief   HAL module driver.
   8   *          This is the common part of the HAL initialization
   9   *
  10   @verbatim
  11   ==============================================================================
  12                      ##### How to use this driver #####
  13   ==============================================================================
  14     [..]
  15     The common HAL driver contains a set of generic and common APIs that can be
  16     used by the PPP peripheral drivers and the user to start using the HAL.
  17     [..]
  18     The HAL contains two APIs' categories:
  19          (+) Common HAL APIs
  20          (+) Services HAL APIs
  21
  22   @endverbatim
  23   ******************************************************************************
  24   * @attention
  25   *
  26   * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
  27   *
  28   * Redistribution and use in source and binary forms, with or without modification,
  29   * are permitted provided that the following conditions are met:
  30   *   1. Redistributions of source code must retain the above copyright notice,
  31   *      this list of conditions and the following disclaimer.
  32   *   2. Redistributions in binary form must reproduce the above copyright notice,
  33   *      this list of conditions and the following disclaimer in the documentation
  34   *      and/or other materials provided with the distribution.
  35   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  36   *      may be used to endorse or promote products derived from this software
  37   *      without specific prior written permission.
  38   *
  39   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  40   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  42   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  43   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  44   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  45   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  46   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  47   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  48   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  49   *
  50   ******************************************************************************
  51   */
  52
  53 /* Includes ------------------------------------------------------------------*/
  54 #include "stm32f7xx_hal.h"
  55
  56 /** @addtogroup STM32F7xx_HAL_Driver
  57   * @{
  58   */
  59
  60 /** @defgroup HAL HAL
  61   * @brief HAL module driver.
  62   * @{
  63   */
  64
  65 /* Private typedef -----------------------------------------------------------*/
  66 /* Private define ------------------------------------------------------------*/
  67 /** @addtogroup HAL_Private_Constants
  68   * @{
  69   */
  70 /**
  71  * @brief STM32F7xx HAL Driver version number V1.1.0
  72    */
  73 #define __STM32F7xx_HAL_VERSION_MAIN   (0x01) /*!< [31:24] main version */
  74 #define __STM32F7xx_HAL_VERSION_SUB1   (0x01) /*!< [23:16] sub1 version */
  75 #define __STM32F7xx_HAL_VERSION_SUB2   (0x00) /*!< [15:8]  sub2 version */
  76 #define __STM32F7xx_HAL_VERSION_RC     (0x00) /*!< [7:0]  release candidate */
  77 #define __STM32F7xx_HAL_VERSION         ((__STM32F7xx_HAL_VERSION_MAIN << 24)\
  78                                         |(__STM32F7xx_HAL_VERSION_SUB1 << 16)\
  79                                         |(__STM32F7xx_HAL_VERSION_SUB2 << 8 )\
  80                                         |(__STM32F7xx_HAL_VERSION_RC))
  81
  82 #define IDCODE_DEVID_MASK    ((uint32_t)0x00000FFF)
  83 /**
  84   * @}
  85   */
  86
  87 /* Private macro -------------------------------------------------------------*/
  88 /* Private variables ---------------------------------------------------------*/
  89 /** @addtogroup HAL_Private_Variables
  90   * @{
  91   */
  92 __IO uint32_t uwTick;
  93 /**
  94   * @}
  95   */
  96
  97 /* Private function prototypes -----------------------------------------------*/
  98 /* Private functions ---------------------------------------------------------*/
  99
 100 /** @defgroup HAL_Exported_Functions HAL Exported Functions
 101   * @{
 102   */
 103
 104 /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
 105  *  @brief    Initialization and de-initialization functions
 106  *
 107 @verbatim
 108  ===============================================================================
 109               ##### Initialization and de-initialization functions #####
 110  ===============================================================================
 111     [..]  This section provides functions allowing to:
 112       (+) Initializes the Flash interface the NVIC allocation and initial clock
 113           configuration. It initializes the systick also when timeout is needed
 114           and the backup domain when enabled.
 115       (+) de-Initializes common part of the HAL
 116       (+) Configure The time base source to have 1ms time base with a dedicated
 117           Tick interrupt priority.
 118         (++) Systick timer is used by default as source of time base, but user
 119              can eventually implement his proper time base source (a general purpose
 120              timer for example or other time source), keeping in mind that Time base
 121              duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
 122              handled in milliseconds basis.
 123         (++) Time base configuration function (HAL_InitTick ()) is called automatically
 124              at the beginning of the program after reset by HAL_Init() or at any time
 125              when clock is configured, by HAL_RCC_ClockConfig().
 126         (++) Source of time base is configured  to generate interrupts at regular
 127              time intervals. Care must be taken if HAL_Delay() is called from a
 128              peripheral ISR process, the Tick interrupt line must have higher priority
 129             (numerically lower) than the peripheral interrupt. Otherwise the caller
 130             ISR process will be blocked.
 131        (++) functions affecting time base configurations are declared as __weak
 132              to make  override possible  in case of other  implementations in user file.
 133 @endverbatim
 134   * @{
 135   */
 136
 137 /**
 138   * @brief  This function is used to initialize the HAL Library; it must be the first
 139   *         instruction to be executed in the main program (before to call any other
 140   *         HAL function), it performs the following:
 141   *           Configure the Flash prefetch, and instruction cache through ART accelerator.
 142   *           Configures the SysTick to generate an interrupt each 1 millisecond,
 143   *           which is clocked by the HSI (at this stage, the clock is not yet
 144   *           configured and thus the system is running from the internal HSI at 16 MHz).
 145   *           Set NVIC Group Priority to 4.
 146   *           Calls the HAL_MspInit() callback function defined in user file
 147   *           "stm32f7xx_hal_msp.c" to do the global low level hardware initialization
 148   *
 149   * @note   SysTick is used as time base for the HAL_Delay() function, the application
 150   *         need to ensure that the SysTick time base is always set to 1 millisecond
 151   *         to have correct HAL operation.
 152   * @retval HAL status
 153   */
 154 HAL_StatusTypeDef HAL_Init(void)
 155 {
 156   /* Configure Flash prefetch and Instruction cache through ART accelerator */
 157 #if (ART_ACCLERATOR_ENABLE != 0)
 158    __HAL_FLASH_ART_ENABLE();
 159 #endif /* ART_ACCLERATOR_ENABLE */
 160
 161   /* Set Interrupt Group Priority */
 162   HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
 163
 164   /* Use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */
 165   HAL_InitTick(TICK_INT_PRIORITY);
 166
 167   /* Init the low level hardware */
 168   HAL_MspInit();
 169
 170   /* Return function status */
 171   return HAL_OK;
 172 }
 173
 174 /**
 175   * @brief  This function de-Initializes common part of the HAL and stops the systick.
 176   *         This function is optional.
 177   * @retval HAL status
 178   */
 179 HAL_StatusTypeDef HAL_DeInit(void)
 180 {
 181   /* Reset of all peripherals */
 182   __HAL_RCC_APB1_FORCE_RESET();
 183   __HAL_RCC_APB1_RELEASE_RESET();
 184
 185   __HAL_RCC_APB2_FORCE_RESET();
 186   __HAL_RCC_APB2_RELEASE_RESET();
 187
 188   __HAL_RCC_AHB1_FORCE_RESET();
 189   __HAL_RCC_AHB1_RELEASE_RESET();
 190
 191   __HAL_RCC_AHB2_FORCE_RESET();
 192   __HAL_RCC_AHB2_RELEASE_RESET();
 193
 194   __HAL_RCC_AHB3_FORCE_RESET();
 195   __HAL_RCC_AHB3_RELEASE_RESET();
 196
 197   /* De-Init the low level hardware */
 198   HAL_MspDeInit();
 199
 200   /* Return function status */
 201   return HAL_OK;
 202 }
 203
 204 /**
 205   * @brief  Initializes the MSP.
 206   * @retval None
 207   */
 208 __weak void HAL_MspInit(void)
 209 {
 210   /* NOTE : This function Should not be modified, when the callback is needed,
 211             the HAL_MspInit could be implemented in the user file
 212    */
 213 }
 214
 215 /**
 216   * @brief  DeInitializes the MSP.
 217   * @retval None
 218   */
 219 __weak void HAL_MspDeInit(void)
 220 {
 221   /* NOTE : This function Should not be modified, when the callback is needed,
 222             the HAL_MspDeInit could be implemented in the user file
 223    */
 224 }
 225
 226 /**
 227   * @brief This function configures the source of the time base.
 228   *        The time source is configured  to have 1ms time base with a dedicated
 229   *        Tick interrupt priority.
 230   * @note This function is called  automatically at the beginning of program after
 231   *       reset by HAL_Init() or at any time when clock is reconfigured  by HAL_RCC_ClockConfig().
 232   * @note In the default implementation, SysTick timer is the source of time base.
 233   *       It is used to generate interrupts at regular time intervals.
 234   *       Care must be taken if HAL_Delay() is called from a peripheral ISR process,
 235   *       The the SysTick interrupt must have higher priority (numerically lower)
 236   *       than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
 237   *       The function is declared as __weak  to be overwritten  in case of other
 238   *       implementation  in user file.
 239   * @param TickPriority: Tick interrupt priority.
 240   * @retval HAL status
 241   */
 242 __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
 243 {
 244   /*Configure the SysTick to have interrupt in 1ms time basis*/
 245   HAL_SYSTICK_Config(SystemCoreClock/1000);
 246
 247   /*Configure the SysTick IRQ priority */
 248   HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);
 249
 250   /* Return function status */
 251   return HAL_OK;
 252 }
 253
 254 /**
 255   * @}
 256   */
 257
 258 /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
 259  *  @brief    HAL Control functions
 260  *
 261 @verbatim
 262  ===============================================================================
 263                       ##### HAL Control functions #####
 264  ===============================================================================
 265     [..]  This section provides functions allowing to:
 266       (+) Provide a tick value in millisecond
 267       (+) Provide a blocking delay in millisecond
 268       (+) Suspend the time base source interrupt
 269       (+) Resume the time base source interrupt
 270       (+) Get the HAL API driver version
 271       (+) Get the device identifier
 272       (+) Get the device revision identifier
 273       (+) Enable/Disable Debug module during SLEEP mode
 274       (+) Enable/Disable Debug module during STOP mode
 275       (+) Enable/Disable Debug module during STANDBY mode
 276
 277 @endverbatim
 278   * @{
 279   */
 280
 281 /**
 282   * @brief This function is called to increment  a global variable "uwTick"
 283   *        used as application time base.
 284   * @note In the default implementation, this variable is incremented each 1ms
 285   *       in Systick ISR.
 286  * @note This function is declared as __weak to be overwritten in case of other
 287   *      implementations in user file.
 288   * @retval None
 289   */
 290 __weak void HAL_IncTick(void)
 291 {
 292   uwTick++;
 293 }
 294
 295 /**
 296   * @brief Provides a tick value in millisecond.
 297   * @note This function is declared as __weak to be overwritten in case of other
 298   *       implementations in user file.
 299   * @retval tick value
 300   */
 301 __weak uint32_t HAL_GetTick(void)
 302 {
 303   return uwTick;
 304 }
 305
 306 /**
 307   * @brief This function provides accurate delay (in milliseconds) based
 308   *        on variable incremented.
 309   * @note In the default implementation , SysTick timer is the source of time base.
 310   *       It is used to generate interrupts at regular time intervals where uwTick
 311   *       is incremented.
 312   * @note This function is declared as __weak to be overwritten in case of other
 313   *       implementations in user file.
 314   * @param Delay: specifies the delay time length, in milliseconds.
 315   * @retval None
 316   */
 317 __weak void HAL_Delay(__IO uint32_t Delay)
 318 {
 319   uint32_t tickstart = 0;
 320   tickstart = HAL_GetTick();
 321   while((HAL_GetTick() - tickstart) < Delay)
 322   {
 323   }
 324 }
 325
 326 /**
 327   * @brief Suspend Tick increment.
 328   * @note In the default implementation , SysTick timer is the source of time base. It is
 329   *       used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
 330   *       is called, the SysTick interrupt will be disabled and so Tick increment
 331   *       is suspended.
 332   * @note This function is declared as __weak to be overwritten in case of other
 333   *       implementations in user file.
 334   * @retval None
 335   */
 336 __weak void HAL_SuspendTick(void)
 337 {
 338   /* Disable SysTick Interrupt */
 339   SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
 340 }
 341
 342 /**
 343   * @brief Resume Tick increment.
 344   * @note In the default implementation , SysTick timer is the source of time base. It is
 345   *       used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
 346   *       is called, the SysTick interrupt will be enabled and so Tick increment
 347   *       is resumed.
 348   * @note This function is declared as __weak to be overwritten in case of other
 349   *       implementations in user file.
 350   * @retval None
 351   */
 352 __weak void HAL_ResumeTick(void)
 353 {
 354   /* Enable SysTick Interrupt */
 355   SysTick->CTRL  |= SysTick_CTRL_TICKINT_Msk;
 356 }
 357
 358 /**
 359   * @brief  Returns the HAL revision
 360   * @retval version : 0xXYZR (8bits for each decimal, R for RC)
 361   */
 362 uint32_t HAL_GetHalVersion(void)
 363 {
 364  return __STM32F7xx_HAL_VERSION;
 365 }
 366
 367 /**
 368   * @brief  Returns the device revision identifier.
 369   * @retval Device revision identifier
 370   */
 371 uint32_t HAL_GetREVID(void)
 372 {
 373    return((DBGMCU->IDCODE) >> 16U);
 374 }
 375
 376 /**
 377   * @brief  Returns the device identifier.
 378   * @retval Device identifier
 379   */
 380 uint32_t HAL_GetDEVID(void)
 381 {
 382    return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK);
 383 }
 384
 385 /**
 386   * @brief  Enable the Debug Module during SLEEP mode
 387   * @retval None
 388   */
 389 void HAL_DBGMCU_EnableDBGSleepMode(void)
 390 {
 391   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 392 }
 393
 394 /**
 395   * @brief  Disable the Debug Module during SLEEP mode
 396   * @retval None
 397   */
 398 void HAL_DBGMCU_DisableDBGSleepMode(void)
 399 {
 400   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 401 }
 402
 403 /**
 404   * @brief  Enable the Debug Module during STOP mode
 405   * @retval None
 406   */
 407 void HAL_DBGMCU_EnableDBGStopMode(void)
 408 {
 409   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
 410 }
 411
 412 /**
 413   * @brief  Disable the Debug Module during STOP mode
 414   * @retval None
 415   */
 416 void HAL_DBGMCU_DisableDBGStopMode(void)
 417 {
 418   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
 419 }
 420
 421 /**
 422   * @brief  Enable the Debug Module during STANDBY mode
 423   * @retval None
 424   */
 425 void HAL_DBGMCU_EnableDBGStandbyMode(void)
 426 {
 427   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
 428 }
 429
 430 /**
 431   * @brief  Disable the Debug Module during STANDBY mode
 432   * @retval None
 433   */
 434 void HAL_DBGMCU_DisableDBGStandbyMode(void)
 435 {
 436   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
 437 }
 438
 439 /**
 440   * @brief  Enables the I/O Compensation Cell.
 441   * @note   The I/O compensation cell can be used only when the device supply
 442   *         voltage ranges from 2.4 to 3.6 V.
 443   * @retval None
 444   */
 445 void HAL_EnableCompensationCell(void)
 446 {
 447   SYSCFG->CMPCR |= SYSCFG_CMPCR_CMP_PD;
 448 }
 449
 450 /**
 451   * @brief  Power-down the I/O Compensation Cell.
 452   * @note   The I/O compensation cell can be used only when the device supply
 453   *         voltage ranges from 2.4 to 3.6 V.
 454   * @retval None
 455   */
 456 void HAL_DisableCompensationCell(void)
 457 {
 458   SYSCFG->CMPCR &= (uint32_t)~((uint32_t)SYSCFG_CMPCR_CMP_PD);
 459 }
 460
 461 /**
 462   * @brief  Enables the FMC Memory Mapping Swapping.
 463   *
 464   * @note   SDRAM is accessible at 0x60000000
 465   *         and NOR/RAM is accessible at 0xC0000000
 466   *
 467   * @retval None
 468   */
 469 void HAL_EnableFMCMemorySwapping(void)
 470 {
 471   SYSCFG->MEMRMP |= SYSCFG_MEMRMP_SWP_FMC_0;
 472 }
 473
 474 /**
 475   * @brief  Disables the FMC Memory Mapping Swapping
 476   *
 477   * @note   SDRAM is accessible at 0xC0000000 (default mapping)
 478   *         and NOR/RAM is accessible at 0x60000000 (default mapping)
 479   *
 480   * @retval None
 481   */
 482 void HAL_DisableFMCMemorySwapping(void)
 483 {
 484
 485   SYSCFG->MEMRMP &= (uint32_t)~((uint32_t)SYSCFG_MEMRMP_SWP_FMC);
 486 }
 487
 488 #if defined (STM32F765xx) || defined (STM32F767xx) || defined (STM32F769xx) || defined (STM32F777xx) || defined (STM32F779xx)
 489 /**
 490 * @brief  Enable the Internal FLASH Bank Swapping.
 491 *
 492 * @note   This function can be used only for STM32F77xx/STM32F76xx devices.
 493 *
 494 * @note   Flash Bank2 mapped at 0x08000000 (AXI) (aliased at 0x00200000 (TCM))
 495 *         and Flash Bank1 mapped at 0x08100000 (AXI) (aliased at 0x00300000 (TCM))
 496 *
 497 * @retval None
 498 */
 499 void HAL_EnableMemorySwappingBank(void)
 500 {
 501   SET_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_SWP_FB);
 502 }
 503
 504 /**
 505 * @brief  Disable the Internal FLASH Bank Swapping.
 506 *
 507 * @note   This function can be used only for STM32F77xx/STM32F76xx devices.
 508 *
 509 * @note   The default state : Flash Bank1 mapped at 0x08000000 (AXI) (aliased at 0x00200000 (TCM))
 510 *         and Flash Bank2 mapped at 0x08100000 (AXI)( aliased at 0x00300000 (TCM))
 511 *
 512 * @retval None
 513 */
 514 void HAL_DisableMemorySwappingBank(void)
 515 {
 516   CLEAR_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_SWP_FB);
 517 }
 518 #endif /* STM32F767xx || STM32F769xx || STM32F777xx || STM32F779xx */
 519
 520 /**
 521   * @}
 522   */
 523
 524 /**
 525   * @}
 526   */
 527
 528 /**
 529   * @}
 530   */
 531
 532 /**
 533   * @}
 534   */
 535
 536 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/