| /** |
| ****************************************************************************** |
| * @file stm32f0xx_hal.c |
| * @author MCD Application Team |
| * @brief HAL module driver. |
| * This is the common part of the HAL initialization |
| * |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| The common HAL driver contains a set of generic and common APIs that can be |
| used by the PPP peripheral drivers and the user to start using the HAL. |
| [..] |
| The HAL contains two APIs categories: |
| (+) HAL Initialization and de-initialization functions |
| (+) HAL Control functions |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f0xx_hal.h" |
| |
| /** @addtogroup STM32F0xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup HAL HAL |
| * @brief HAL module driver. |
| * @{ |
| */ |
| |
| #ifdef HAL_MODULE_ENABLED |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /** @defgroup HAL_Private_Constants HAL Private Constants |
| * @{ |
| */ |
| /** |
| * @brief STM32F0xx HAL Driver version number V1.7.0 |
| */ |
| #define __STM32F0xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */ |
| #define __STM32F0xx_HAL_VERSION_SUB1 (0x07) /*!< [23:16] sub1 version */ |
| #define __STM32F0xx_HAL_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */ |
| #define __STM32F0xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */ |
| #define __STM32F0xx_HAL_VERSION ((__STM32F0xx_HAL_VERSION_MAIN << 24U)\ |
| |(__STM32F0xx_HAL_VERSION_SUB1 << 16U)\ |
| |(__STM32F0xx_HAL_VERSION_SUB2 << 8U )\ |
| |(__STM32F0xx_HAL_VERSION_RC)) |
| |
| #define IDCODE_DEVID_MASK (0x00000FFFU) |
| /** |
| * @} |
| */ |
| |
| /* Private macro -------------------------------------------------------------*/ |
| /** @defgroup HAL_Private_Macros HAL Private Macros |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| |
| /* Private variables ---------------------------------------------------------*/ |
| /** @defgroup HAL_Private_Variables HAL Private Variables |
| * @{ |
| */ |
| __IO uint32_t uwTick; |
| /** |
| * @} |
| */ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* Exported functions ---------------------------------------------------------*/ |
| |
| /** @defgroup HAL_Exported_Functions HAL Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions |
| * @brief Initialization and de-initialization functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Initialization and de-initialization functions ##### |
| =============================================================================== |
| [..] This section provides functions allowing to: |
| (+) Initializes the Flash interface, the NVIC allocation and initial clock |
| configuration. It initializes the source of time base also when timeout |
| is needed and the backup domain when enabled. |
| (+) de-Initializes common part of the HAL. |
| (+) Configure The time base source to have 1ms time base with a dedicated |
| Tick interrupt priority. |
| (++) Systick timer is used by default as source of time base, but user |
| can eventually implement his proper time base source (a general purpose |
| timer for example or other time source), keeping in mind that Time base |
| duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and |
| handled in milliseconds basis. |
| (++) Time base configuration function (HAL_InitTick ()) is called automatically |
| at the beginning of the program after reset by HAL_Init() or at any time |
| when clock is configured, by HAL_RCC_ClockConfig(). |
| (++) Source of time base is configured to generate interrupts at regular |
| time intervals. Care must be taken if HAL_Delay() is called from a |
| peripheral ISR process, the Tick interrupt line must have higher priority |
| (numerically lower) than the peripheral interrupt. Otherwise the caller |
| ISR process will be blocked. |
| (++) functions affecting time base configurations are declared as __Weak |
| to make override possible in case of other implementations in user file. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief This function configures the Flash prefetch, |
| * Configures time base source, NVIC and Low level hardware |
| * @note This function is called at the beginning of program after reset and before |
| * the clock configuration |
| * @note The time base configuration is based on HSI clock when exiting from Reset. |
| * Once done, time base tick start incrementing. |
| * In the default implementation,Systick is used as source of time base. |
| * The tick variable is incremented each 1ms in its ISR. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_Init(void) |
| { |
| /* Configure Flash prefetch */ |
| #if (PREFETCH_ENABLE != 0) |
| __HAL_FLASH_PREFETCH_BUFFER_ENABLE(); |
| #endif /* PREFETCH_ENABLE */ |
| |
| /* Use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */ |
| |
| HAL_InitTick(TICK_INT_PRIORITY); |
| |
| /* Init the low level hardware */ |
| HAL_MspInit(); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief This function de-Initializes common part of the HAL and stops the source |
| * of time base. |
| * @note This function is optional. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_DeInit(void) |
| { |
| /* Reset of all peripherals */ |
| __HAL_RCC_APB1_FORCE_RESET(); |
| __HAL_RCC_APB1_RELEASE_RESET(); |
| |
| __HAL_RCC_APB2_FORCE_RESET(); |
| __HAL_RCC_APB2_RELEASE_RESET(); |
| |
| __HAL_RCC_AHB_FORCE_RESET(); |
| __HAL_RCC_AHB_RELEASE_RESET(); |
| |
| /* De-Init the low level hardware */ |
| HAL_MspDeInit(); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Initializes the MSP. |
| * @retval None |
| */ |
| __weak void HAL_MspInit(void) |
| { |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_MspInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief DeInitializes the MSP. |
| * @retval None |
| */ |
| __weak void HAL_MspDeInit(void) |
| { |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_MspDeInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief This function configures the source of the time base. |
| * The time source is configured to have 1ms time base with a dedicated |
| * Tick interrupt priority. |
| * @note This function is called automatically at the beginning of program after |
| * reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig(). |
| * @note In the default implementation, SysTick timer is the source of time base. |
| * It is used to generate interrupts at regular time intervals. |
| * Care must be taken if HAL_Delay() is called from a peripheral ISR process, |
| * The the SysTick interrupt must have higher priority (numerically lower) |
| * than the peripheral interrupt. Otherwise the caller ISR process will be blocked. |
| * The function is declared as __Weak to be overwritten in case of other |
| * implementation in user file. |
| * @param TickPriority Tick interrupt priority. |
| * @retval HAL status |
| */ |
| __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) |
| { |
| /*Configure the SysTick to have interrupt in 1ms time basis*/ |
| HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000U); |
| |
| /*Configure the SysTick IRQ priority */ |
| HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0U); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions |
| * @brief HAL Control functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### HAL Control functions ##### |
| =============================================================================== |
| [..] This section provides functions allowing to: |
| (+) Provide a tick value in millisecond |
| (+) Provide a blocking delay in millisecond |
| (+) Suspend the time base source interrupt |
| (+) Resume the time base source interrupt |
| (+) Get the HAL API driver version |
| (+) Get the device identifier |
| (+) Get the device revision identifier |
| (+) Enable/Disable Debug module during Sleep mode |
| (+) Enable/Disable Debug module during STOP mode |
| (+) Enable/Disable Debug module during STANDBY mode |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief This function is called to increment a global variable "uwTick" |
| * used as application time base. |
| * @note In the default implementation, this variable is incremented each 1ms |
| * in Systick ISR. |
| * @note This function is declared as __weak to be overwritten in case of other |
| * implementations in user file. |
| * @retval None |
| */ |
| __weak void HAL_IncTick(void) |
| { |
| uwTick++; |
| } |
| |
| /** |
| * @brief Provides a tick value in millisecond. |
| * @note This function is declared as __weak to be overwritten in case of other |
| * implementations in user file. |
| * @retval tick value |
| */ |
| __weak uint32_t HAL_GetTick(void) |
| { |
| return uwTick; |
| } |
| |
| /** |
| * @brief This function provides accurate delay (in milliseconds) based |
| * on variable incremented. |
| * @note In the default implementation , SysTick timer is the source of time base. |
| * It is used to generate interrupts at regular time intervals where uwTick |
| * is incremented. |
| * @note ThiS function is declared as __weak to be overwritten in case of other |
| * implementations in user file. |
| * @param Delay specifies the delay time length, in milliseconds. |
| * @retval None |
| */ |
| __weak void HAL_Delay(__IO uint32_t Delay) |
| { |
| uint32_t tickstart = HAL_GetTick(); |
| uint32_t wait = Delay; |
| |
| /* Add a period to guarantee minimum wait */ |
| if (wait < HAL_MAX_DELAY) |
| { |
| wait++; |
| } |
| |
| while((HAL_GetTick() - tickstart) < wait) |
| { |
| } |
| } |
| |
| /** |
| * @brief Suspend Tick increment. |
| * @note In the default implementation , SysTick timer is the source of time base. It is |
| * used to generate interrupts at regular time intervals. Once HAL_SuspendTick() |
| * is called, the the SysTick interrupt will be disabled and so Tick increment |
| * is suspended. |
| * @note This function is declared as __weak to be overwritten in case of other |
| * implementations in user file. |
| * @retval None |
| */ |
| __weak void HAL_SuspendTick(void) |
| |
| { |
| /* Disable SysTick Interrupt */ |
| CLEAR_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk); |
| } |
| |
| /** |
| * @brief Resume Tick increment. |
| * @note In the default implementation , SysTick timer is the source of time base. It is |
| * used to generate interrupts at regular time intervals. Once HAL_ResumeTick() |
| * is called, the the SysTick interrupt will be enabled and so Tick increment |
| * is resumed. |
| * @note This function is declared as __weak to be overwritten in case of other |
| * implementations in user file. |
| * @retval None |
| */ |
| __weak void HAL_ResumeTick(void) |
| { |
| /* Enable SysTick Interrupt */ |
| SET_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk); |
| } |
| |
| /** |
| * @brief This method returns the HAL revision |
| * @retval version : 0xXYZR (8bits for each decimal, R for RC) |
| */ |
| uint32_t HAL_GetHalVersion(void) |
| { |
| return __STM32F0xx_HAL_VERSION; |
| } |
| |
| /** |
| * @brief Returns the device revision identifier. |
| * @retval Device revision identifier |
| */ |
| uint32_t HAL_GetREVID(void) |
| { |
| return((DBGMCU->IDCODE) >> 16U); |
| } |
| |
| /** |
| * @brief Returns the device identifier. |
| * @retval Device identifier |
| */ |
| uint32_t HAL_GetDEVID(void) |
| { |
| return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK); |
| } |
| |
| /** |
| * @brief Returns first word of the unique device identifier (UID based on 96 bits) |
| * @retval Device identifier |
| */ |
| uint32_t HAL_GetUIDw0(void) |
| { |
| return(READ_REG(*((uint32_t *)UID_BASE))); |
| } |
| |
| /** |
| * @brief Returns second word of the unique device identifier (UID based on 96 bits) |
| * @retval Device identifier |
| */ |
| uint32_t HAL_GetUIDw1(void) |
| { |
| return(READ_REG(*((uint32_t *)(UID_BASE + 4U)))); |
| } |
| |
| /** |
| * @brief Returns third word of the unique device identifier (UID based on 96 bits) |
| * @retval Device identifier |
| */ |
| uint32_t HAL_GetUIDw2(void) |
| { |
| return(READ_REG(*((uint32_t *)(UID_BASE + 8U)))); |
| } |
| |
| /** |
| * @brief Enable the Debug Module during STOP mode |
| * @retval None |
| */ |
| void HAL_DBGMCU_EnableDBGStopMode(void) |
| { |
| SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP); |
| } |
| |
| /** |
| * @brief Disable the Debug Module during STOP mode |
| * @retval None |
| */ |
| void HAL_DBGMCU_DisableDBGStopMode(void) |
| { |
| CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP); |
| } |
| |
| /** |
| * @brief Enable the Debug Module during STANDBY mode |
| * @retval None |
| */ |
| void HAL_DBGMCU_EnableDBGStandbyMode(void) |
| { |
| SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY); |
| } |
| |
| /** |
| * @brief Disable the Debug Module during STANDBY mode |
| * @retval None |
| */ |
| void HAL_DBGMCU_DisableDBGStandbyMode(void) |
| { |
| CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |