tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F1/stm32f1xx_hal.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f1xx_hal.c
   4   * @author  MCD Application Team
   5   * @version V1.0.0
   6   * @date    15-December-2014
   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) 2014 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 "stm32f1xx_hal.h"
  55
  56 /** @addtogroup STM32F1xx_HAL_Driver
  57   * @{
  58   */
  59
  60 /** @defgroup HAL HAL
  61   * @brief HAL module driver.
  62   * @{
  63   */
  64
  65 #ifdef HAL_MODULE_ENABLED
  66
  67 /* Private typedef -----------------------------------------------------------*/
  68 /* Private define ------------------------------------------------------------*/
  69
  70 /** @defgroup HAL_Private_Constants HAL Private Constants
  71   * @{
  72   */
  73
  74 /**
  75  * @brief STM32F1xx HAL Driver version number V1.0.0
  76    */
  77 #define __STM32F1xx_HAL_VERSION_MAIN   (0x01) /*!< [31:24] main version */
  78 #define __STM32F1xx_HAL_VERSION_SUB1   (0x00) /*!< [23:16] sub1 version */
  79 #define __STM32F1xx_HAL_VERSION_SUB2   (0x00) /*!< [15:8]  sub2 version */
  80 #define __STM32F1xx_HAL_VERSION_RC     (0x00) /*!< [7:0]  release candidate */
  81 #define __STM32F1xx_HAL_VERSION         ((__STM32F1xx_HAL_VERSION_MAIN << 24)\
  82                                         |(__STM32F1xx_HAL_VERSION_SUB1 << 16)\
  83                                         |(__STM32F1xx_HAL_VERSION_SUB2 << 8 )\
  84                                         |(__STM32F1xx_HAL_VERSION_RC))
  85
  86 #define IDCODE_DEVID_MASK    ((uint32_t)0x00000FFF)
  87
  88 /**
  89   * @}
  90   */
  91
  92 /* Private macro -------------------------------------------------------------*/
  93 /* Private variables ---------------------------------------------------------*/
  94
  95 /** @defgroup HAL_Private_Variables HAL Private Variables
  96   * @{
  97   */
  98
  99 static __IO uint32_t uwTick;
 100
 101 /**
 102   * @}
 103   */
 104
 105 /* Private function prototypes -----------------------------------------------*/
 106 /* Private functions ---------------------------------------------------------*/
 107
 108 /** @defgroup HAL_Exported_Functions HAL Exported Functions
 109   * @{
 110   */
 111
 112 /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
 113  *  @brief    Initialization and de-initialization functions
 114  *
 115 @verbatim
 116  ===============================================================================
 117               ##### Initialization and de-initialization functions #####
 118  ===============================================================================
 119    [..]  This section provides functions allowing to:
 120       (+) Initializes the Flash interface, the NVIC allocation and initial clock
 121           configuration. It initializes the source of time base also when timeout
 122           is needed and the backup domain when enabled.
 123       (+) de-Initializes common part of the HAL.
 124       (+) Configure The time base source to have 1ms time base with a dedicated
 125           Tick interrupt priority.
 126         (++) Systick timer is used by default as source of time base, but user
 127              can eventually implement his proper time base source (a general purpose
 128              timer for example or other time source), keeping in mind that Time base
 129              duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
 130              handled in milliseconds basis.
 131         (++) Time base configuration function (HAL_InitTick ()) is called automatically
 132              at the beginning of the program after reset by HAL_Init() or at any time
 133              when clock is configured, by HAL_RCC_ClockConfig().
 134         (++) Source of time base is configured  to generate interrupts at regular
 135              time intervals. Care must be taken if HAL_Delay() is called from a
 136              peripheral ISR process, the Tick interrupt line must have higher priority
 137             (numerically lower) than the peripheral interrupt. Otherwise the caller
 138             ISR process will be blocked.
 139        (++) functions affecting time base configurations are declared as __Weak
 140              to make  override possible  in case of other  implementations in user file.
 141
 142 @endverbatim
 143   * @{
 144   */
 145
 146 /**
 147   * @brief This function configures the Flash prefetch,
 148   *        Configures time base source, NVIC and Low level hardware
 149   * Note: This function is called at the beginning of program after reset and before
 150   *       the clock configuration
 151   * Note: The time base configuration is based on MSI clock when exiting from Reset.
 152   *       Once done, time base tick start incrementing.
 153   *        In the default implementation,Systick is used as source of time base.
 154   *        the tick variable is incremented each 1ms in its ISR.
 155   * @retval HAL status
 156   */
 157 HAL_StatusTypeDef HAL_Init(void)
 158 {
 159   /* Configure Flash prefetch */
 160 #if (PREFETCH_ENABLE != 0)
 161 #if defined(STM32F101x6) || defined(STM32F101xB) || defined(STM32F101xE) || defined(STM32F101xG) || \
 162     defined(STM32F102x6) || defined(STM32F102xB) || \
 163     defined(STM32F103x6) || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG) || \
 164     defined(STM32F105xC) || defined(STM32F107xC)
 165
 166   /* Prefetch buffer is not available on value line devices */
 167   __HAL_FLASH_PREFETCH_BUFFER_ENABLE();
 168 #endif
 169 #endif /* PREFETCH_ENABLE */
 170
 171   /* Set Interrupt Group Priority */
 172   HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
 173
 174   /* Use systick as time base source and configure 1ms tick (default clock after Reset is MSI) */
 175   HAL_InitTick(TICK_INT_PRIORITY);
 176
 177   /* Init the low level hardware */
 178   HAL_MspInit();
 179
 180   /* Return function status */
 181   return HAL_OK;
 182 }
 183
 184 /**
 185   * @brief This function de-Initializes common part of the HAL and stops the source
 186   *        of time base.
 187   * Note: This function is optional.
 188   * @retval HAL status
 189   */
 190 HAL_StatusTypeDef HAL_DeInit(void)
 191 {
 192   /* Reset of all peripherals */
 193   __HAL_RCC_APB1_FORCE_RESET();
 194   __HAL_RCC_APB1_RELEASE_RESET();
 195
 196   __HAL_RCC_APB2_FORCE_RESET();
 197   __HAL_RCC_APB2_RELEASE_RESET();
 198
 199 #if defined(STM32F105xC) || defined(STM32F107xC)
 200   __HAL_RCC_AHB_FORCE_RESET();
 201   __HAL_RCC_AHB_RELEASE_RESET();
 202 #endif
 203
 204   /* De-Init the low level hardware */
 205   HAL_MspDeInit();
 206
 207   /* Return function status */
 208   return HAL_OK;
 209 }
 210
 211 /**
 212   * @brief  Initializes the MSP.
 213   * @retval None
 214   */
 215 __weak void HAL_MspInit(void)
 216 {
 217   /* NOTE : This function Should not be modified, when the callback is needed,
 218             the HAL_MspInit could be implemented in the user file
 219    */
 220 }
 221
 222 /**
 223   * @brief  DeInitializes the MSP.
 224   * @retval None
 225   */
 226 __weak void HAL_MspDeInit(void)
 227 {
 228   /* NOTE : This function Should not be modified, when the callback is needed,
 229             the HAL_MspDeInit could be implemented in the user file
 230    */
 231 }
 232
 233 /**
 234   * @brief This function configures the source of the time base.
 235   *        The time source is configured  to have 1ms time base with a dedicated
 236   *        Tick interrupt priority.
 237   * Note: This function is called  automatically at the beginning of program after
 238   *       reset by HAL_Init() or at any time when clock is reconfigured  by HAL_RCC_ClockConfig().
 239   * Note: In the default implementation, SysTick timer is the source of time base.
 240   *       It is used to generate interrupts at regular time intervals.
 241   *       Care must be taken if HAL_Delay() is called from a peripheral ISR process,
 242   *       The the SysTick interrupt must have higher priority (numerically lower)
 243   *       than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
 244   *       The function is declared as __Weak  to be overwritten  in case of other
 245   *       implementation  in user file.
 246   * @param TickPriority: Tick interrupt priority.
 247   * @retval HAL status
 248   */
 249 __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
 250 {
 251   /*Configure the SysTick to have interrupt in 1ms time basis*/
 252   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
 253
 254   /*Configure the SysTick IRQ priority */
 255   HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);
 256
 257    /* Return function status */
 258   return HAL_OK;
 259 }
 260
 261 /**
 262   * @}
 263   */
 264
 265 /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
 266  *  @brief    HAL Control functions
 267  *
 268 @verbatim
 269  ===============================================================================
 270                       ##### HAL Control functions #####
 271  ===============================================================================
 272     [..]  This section provides functions allowing to:
 273       (+) Provide a tick value in millisecond
 274       (+) Provide a blocking delay in millisecond
 275       (+) Suspend the time base source interrupt
 276       (+) Resume the time base source interrupt
 277       (+) Get the HAL API driver version
 278       (+) Get the device identifier
 279       (+) Get the device revision identifier
 280       (+) Enable/Disable Debug module during Sleep mode
 281       (+) Enable/Disable Debug module during STOP mode
 282       (+) Enable/Disable Debug module during STANDBY mode
 283
 284 @endverbatim
 285   * @{
 286   */
 287
 288 /**
 289   * @brief This function is called to increment  a global variable "uwTick"
 290   *        used as application time base.
 291   * Note: In the default implementation, this variable is incremented each 1ms
 292   *       in Systick ISR.
 293  * Note: This function is declared as __weak to be overwritten in case of other
 294   *      implementations in user file.
 295   * @retval None
 296   */
 297 __weak void HAL_IncTick(void)
 298 {
 299   uwTick++;
 300 }
 301
 302 /**
 303   * @brief Provides a tick value in millisecond.
 304   * Note: This function is declared as __weak to be overwritten in case of other
 305   *       implementations in user file.
 306   * @retval tick value
 307   */
 308 __weak uint32_t HAL_GetTick(void)
 309 {
 310   return uwTick;
 311 }
 312
 313 /**
 314   * @brief This function provides accurate delay (in milliseconds) based
 315   *        on variable incremented.
 316   * Note: In the default implementation , SysTick timer is the source of time base.
 317   *       It is used to generate interrupts at regular time intervals where uwTick
 318   *       is incremented.
 319   * Note: ThiS function is declared as __weak to be overwritten in case of other
 320   *       implementations in user file.
 321   * @param Delay: specifies the delay time length, in milliseconds.
 322   * @retval None
 323   */
 324 __weak void HAL_Delay(__IO uint32_t Delay)
 325 {
 326   uint32_t tickstart = 0;
 327   tickstart = HAL_GetTick();
 328   while((HAL_GetTick() - tickstart) < Delay)
 329   {
 330   }
 331 }
 332
 333 /**
 334   * @brief Suspend Tick increment.
 335   * Note: In the default implementation , SysTick timer is the source of time base. It is
 336   *       used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
 337   *       is called, the the SysTick interrupt will be disabled and so Tick increment
 338   *       is suspended.
 339   * Note: This function is declared as __weak to be overwritten in case of other
 340   *       implementations in user file.
 341   * @retval None
 342   */
 343 __weak void HAL_SuspendTick(void)
 344 {
 345   /* Disable SysTick Interrupt */
 346   CLEAR_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
 347 }
 348
 349 /**
 350   * @brief Resume Tick increment.
 351   * Note: In the default implementation , SysTick timer is the source of time base. It is
 352   *       used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
 353   *       is called, the the SysTick interrupt will be enabled and so Tick increment
 354   *       is resumed.
 355   * Note: This function is declared as __weak to be overwritten in case of other
 356   *       implementations in user file.
 357   * @retval None
 358   */
 359 __weak void HAL_ResumeTick(void)
 360 {
 361   /* Enable SysTick Interrupt */
 362   SET_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
 363 }
 364
 365 /**
 366   * @brief Returns the HAL revision
 367   * @retval version: 0xXYZR (8bits for each decimal, R for RC)
 368   */
 369 uint32_t HAL_GetHalVersion(void)
 370 {
 371  return __STM32F1xx_HAL_VERSION;
 372 }
 373
 374 /**
 375   * @brief Returns the device revision identifier.
 376   * Note: On devices STM32F10xx8 and STM32F10xxB,
 377   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 378   *                  STM32F101xF/G and STM32F103xF/G
 379   *                  STM32F10xx4 and STM32F10xx6
 380   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 381   *       debug mode (not accessible by the user software in normal mode).
 382   *       Refer to errata sheet of these devices for more details.
 383   * @retval Device revision identifier
 384   */
 385 uint32_t HAL_GetREVID(void)
 386 {
 387   return((DBGMCU->IDCODE) >> POSITION_VAL(DBGMCU_IDCODE_REV_ID));
 388 }
 389
 390 /**
 391   * @brief  Returns the device identifier.
 392   * Note: On devices STM32F10xx8 and STM32F10xxB,
 393   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 394   *                  STM32F101xF/G and STM32F103xF/G
 395   *                  STM32F10xx4 and STM32F10xx6
 396   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 397   *       debug mode (not accessible by the user software in normal mode).
 398   *       Refer to errata sheet of these devices for more details.
 399   * @retval Device identifier
 400   */
 401 uint32_t HAL_GetDEVID(void)
 402 {
 403    return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK);
 404 }
 405
 406 /**
 407   * @brief  Enable the Debug Module during SLEEP mode
 408   * @retval None
 409   */
 410 void HAL_DBGMCU_EnableDBGSleepMode(void)
 411 {
 412   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 413 }
 414
 415 /**
 416   * @brief  Disable the Debug Module during SLEEP mode
 417   * Note: On devices STM32F10xx8 and STM32F10xxB,
 418   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 419   *                  STM32F101xF/G and STM32F103xF/G
 420   *                  STM32F10xx4 and STM32F10xx6
 421   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 422   *       debug mode (not accessible by the user software in normal mode).
 423   *       Refer to errata sheet of these devices for more details.
 424   * @retval None
 425   */
 426 void HAL_DBGMCU_DisableDBGSleepMode(void)
 427 {
 428   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 429 }
 430
 431 /**
 432   * @brief  Enable the Debug Module during STOP mode
 433   * Note: On devices STM32F10xx8 and STM32F10xxB,
 434   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 435   *                  STM32F101xF/G and STM32F103xF/G
 436   *                  STM32F10xx4 and STM32F10xx6
 437   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 438   *       debug mode (not accessible by the user software in normal mode).
 439   *       Refer to errata sheet of these devices for more details.
 440   * Note: On all STM32F1 devices:
 441   *       If the system tick timer interrupt is enabled during the Stop mode
 442   *       debug (DBG_STOP bit set in the DBGMCU_CR register ), it will wakeup
 443   *       the system from Stop mode.
 444   *       Workaround: To debug the Stop mode, disable the system tick timer
 445   *       interrupt.
 446   *       Refer to errata sheet of these devices for more details.
 447   * Note: On all STM32F1 devices:
 448   *       If the system tick timer interrupt is enabled during the Stop mode
 449   *       debug (DBG_STOP bit set in the DBGMCU_CR register ), it will wakeup
 450   *       the system from Stop mode.
 451   *       Workaround: To debug the Stop mode, disable the system tick timer
 452   *       interrupt.
 453   *       Refer to errata sheet of these devices for more details.
 454   * @retval None
 455   */
 456 void HAL_DBGMCU_EnableDBGStopMode(void)
 457 {
 458   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
 459 }
 460
 461 /**
 462   * @brief  Disable the Debug Module during STOP mode
 463   * Note: On devices STM32F10xx8 and STM32F10xxB,
 464   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 465   *                  STM32F101xF/G and STM32F103xF/G
 466   *                  STM32F10xx4 and STM32F10xx6
 467   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 468   *       debug mode (not accessible by the user software in normal mode).
 469   *       Refer to errata sheet of these devices for more details.
 470   * @retval None
 471   */
 472 void HAL_DBGMCU_DisableDBGStopMode(void)
 473 {
 474   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
 475 }
 476
 477 /**
 478   * @brief  Enable the Debug Module during STANDBY mode
 479   * Note: On devices STM32F10xx8 and STM32F10xxB,
 480   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 481   *                  STM32F101xF/G and STM32F103xF/G
 482   *                  STM32F10xx4 and STM32F10xx6
 483   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 484   *       debug mode (not accessible by the user software in normal mode).
 485   *       Refer to errata sheet of these devices for more details.
 486   * @retval None
 487   */
 488 void HAL_DBGMCU_EnableDBGStandbyMode(void)
 489 {
 490   SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
 491 }
 492
 493 /**
 494   * @brief  Disable the Debug Module during STANDBY mode
 495   * Note: On devices STM32F10xx8 and STM32F10xxB,
 496   *                  STM32F101xC/D/E and STM32F103xC/D/E,
 497   *                  STM32F101xF/G and STM32F103xF/G
 498   *                  STM32F10xx4 and STM32F10xx6
 499   *       Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
 500   *       debug mode (not accessible by the user software in normal mode).
 501   *       Refer to errata sheet of these devices for more details.
 502   * @retval None
 503   */
 504 void HAL_DBGMCU_DisableDBGStandbyMode(void)
 505 {
 506   CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
 507 }
 508
 509 /**
 510   * @}
 511   */
 512
 513 /**
 514   * @}
 515   */
 516
 517 #endif /* HAL_MODULE_ENABLED */
 518 /**
 519   * @}
 520   */
 521
 522 /**
 523   * @}
 524   */
 525
 526 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/