468 lines
16 KiB
C
468 lines
16 KiB
C
/**
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******************************************************************************
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* @file stm32f0xx_hal.c
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* @author MCD Application Team
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* @brief HAL module driver.
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* This is the common part of the HAL initialization
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*
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@verbatim
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==============================================================================
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##### How to use this driver #####
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==============================================================================
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[..]
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The common HAL driver contains a set of generic and common APIs that can be
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used by the PPP peripheral drivers and the user to start using the HAL.
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[..]
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The HAL contains two APIs categories:
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(+) HAL Initialization and de-initialization functions
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(+) HAL Control functions
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f0xx_hal.h"
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/** @addtogroup STM32F0xx_HAL_Driver
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* @{
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*/
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/** @defgroup HAL HAL
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* @brief HAL module driver.
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* @{
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*/
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#ifdef HAL_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/** @defgroup HAL_Private_Constants HAL Private Constants
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* @{
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*/
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/**
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* @brief STM32F0xx HAL Driver version number V1.7.2
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*/
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#define __STM32F0xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */
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#define __STM32F0xx_HAL_VERSION_SUB1 (0x07) /*!< [23:16] sub1 version */
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#define __STM32F0xx_HAL_VERSION_SUB2 (0x02) /*!< [15:8] sub2 version */
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#define __STM32F0xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */
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#define __STM32F0xx_HAL_VERSION ((__STM32F0xx_HAL_VERSION_MAIN << 24U)\
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|(__STM32F0xx_HAL_VERSION_SUB1 << 16U)\
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|(__STM32F0xx_HAL_VERSION_SUB2 << 8U )\
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|(__STM32F0xx_HAL_VERSION_RC))
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#define IDCODE_DEVID_MASK (0x00000FFFU)
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/**
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* @}
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*/
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/* Private macro -------------------------------------------------------------*/
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/** @defgroup HAL_Private_Macros HAL Private Macros
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* @{
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*/
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/**
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* @}
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*/
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/* Private variables ---------------------------------------------------------*/
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/** @defgroup HAL_Private_Variables HAL Private Variables
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* @{
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*/
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__IO uint32_t uwTick;
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup HAL_Exported_Functions HAL Exported Functions
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* @{
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*/
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/** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
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* @brief Initialization and de-initialization functions
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*
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@verbatim
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===============================================================================
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##### Initialization and de-initialization functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Initializes the Flash interface, the NVIC allocation and initial clock
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configuration. It initializes the source of time base also when timeout
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is needed and the backup domain when enabled.
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(+) de-Initializes common part of the HAL.
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(+) Configure The time base source to have 1ms time base with a dedicated
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Tick interrupt priority.
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(++) Systick timer is used by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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(++) Time base configuration function (HAL_InitTick ()) is called automatically
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at the beginning of the program after reset by HAL_Init() or at any time
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when clock is configured, by HAL_RCC_ClockConfig().
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(++) Source of time base is configured to generate interrupts at regular
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time intervals. Care must be taken if HAL_Delay() is called from a
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peripheral ISR process, the Tick interrupt line must have higher priority
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(numerically lower) than the peripheral interrupt. Otherwise the caller
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ISR process will be blocked.
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(++) functions affecting time base configurations are declared as __Weak
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to make override possible in case of other implementations in user file.
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@endverbatim
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* @{
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*/
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/**
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* @brief This function configures the Flash prefetch,
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* Configures time base source, NVIC and Low level hardware
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* @note This function is called at the beginning of program after reset and before
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* the clock configuration
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* @note The time base configuration is based on HSI clock when exiting from Reset.
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* Once done, time base tick start incrementing.
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* In the default implementation,Systick is used as source of time base.
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* The tick variable is incremented each 1ms in its ISR.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_Init(void)
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{
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/* Configure Flash prefetch */
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#if (PREFETCH_ENABLE != 0)
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__HAL_FLASH_PREFETCH_BUFFER_ENABLE();
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#endif /* PREFETCH_ENABLE */
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/* Use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */
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HAL_InitTick(TICK_INT_PRIORITY);
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/* Init the low level hardware */
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HAL_MspInit();
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/* Return function status */
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return HAL_OK;
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}
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/**
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* @brief This function de-Initializes common part of the HAL and stops the source
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* of time base.
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* @note This function is optional.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_DeInit(void)
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{
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/* Reset of all peripherals */
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__HAL_RCC_APB1_FORCE_RESET();
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__HAL_RCC_APB1_RELEASE_RESET();
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__HAL_RCC_APB2_FORCE_RESET();
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__HAL_RCC_APB2_RELEASE_RESET();
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__HAL_RCC_AHB_FORCE_RESET();
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__HAL_RCC_AHB_RELEASE_RESET();
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/* De-Init the low level hardware */
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HAL_MspDeInit();
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/* Return function status */
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return HAL_OK;
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}
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/**
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* @brief Initializes the MSP.
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* @retval None
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*/
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__weak void HAL_MspInit(void)
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{
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_MspInit could be implemented in the user file
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*/
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}
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/**
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* @brief DeInitializes the MSP.
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* @retval None
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*/
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__weak void HAL_MspDeInit(void)
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{
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_MspDeInit could be implemented in the user file
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*/
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}
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/**
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* @brief This function configures the source of the time base.
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* The time source is configured to have 1ms time base with a dedicated
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* Tick interrupt priority.
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* @note This function is called automatically at the beginning of program after
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* reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig().
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* @note In the default implementation, SysTick timer is the source of time base.
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* It is used to generate interrupts at regular time intervals.
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* Care must be taken if HAL_Delay() is called from a peripheral ISR process,
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* The the SysTick interrupt must have higher priority (numerically lower)
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* than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
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* The function is declared as __Weak to be overwritten in case of other
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* implementation in user file.
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* @param TickPriority Tick interrupt priority.
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* @retval HAL status
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*/
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__weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
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{
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/*Configure the SysTick to have interrupt in 1ms time basis*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000U);
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/*Configure the SysTick IRQ priority */
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HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0U);
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/* Return function status */
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return HAL_OK;
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}
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/**
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* @}
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*/
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/** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
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* @brief HAL Control functions
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*
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@verbatim
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===============================================================================
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##### HAL Control functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Provide a tick value in millisecond
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(+) Provide a blocking delay in millisecond
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(+) Suspend the time base source interrupt
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(+) Resume the time base source interrupt
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(+) Get the HAL API driver version
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(+) Get the device identifier
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(+) Get the device revision identifier
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(+) Enable/Disable Debug module during Sleep mode
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(+) Enable/Disable Debug module during STOP mode
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(+) Enable/Disable Debug module during STANDBY mode
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@endverbatim
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* @{
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*/
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/**
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* @brief This function is called to increment a global variable "uwTick"
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* used as application time base.
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* @note In the default implementation, this variable is incremented each 1ms
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* in Systick ISR.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @retval None
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*/
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__weak void HAL_IncTick(void)
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{
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uwTick++;
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}
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/**
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* @brief Provides a tick value in millisecond.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @retval tick value
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*/
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__weak uint32_t HAL_GetTick(void)
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{
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return uwTick;
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}
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/**
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* @brief This function provides accurate delay (in milliseconds) based
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* on variable incremented.
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* @note In the default implementation , SysTick timer is the source of time base.
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* It is used to generate interrupts at regular time intervals where uwTick
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* is incremented.
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* @note ThiS function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @param Delay specifies the delay time length, in milliseconds.
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* @retval None
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*/
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__weak void HAL_Delay(__IO uint32_t Delay)
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{
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uint32_t tickstart = HAL_GetTick();
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uint32_t wait = Delay;
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/* Add a period to guarantee minimum wait */
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if (wait < HAL_MAX_DELAY)
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{
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wait++;
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}
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while((HAL_GetTick() - tickstart) < wait)
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{
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}
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}
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/**
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* @brief Suspend Tick increment.
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* @note In the default implementation , SysTick timer is the source of time base. It is
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* used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
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* is called, the the SysTick interrupt will be disabled and so Tick increment
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* is suspended.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @retval None
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*/
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__weak void HAL_SuspendTick(void)
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{
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/* Disable SysTick Interrupt */
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CLEAR_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
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}
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/**
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* @brief Resume Tick increment.
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* @note In the default implementation , SysTick timer is the source of time base. It is
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* used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
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* is called, the the SysTick interrupt will be enabled and so Tick increment
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* is resumed.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @retval None
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*/
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__weak void HAL_ResumeTick(void)
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{
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/* Enable SysTick Interrupt */
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SET_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
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}
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/**
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* @brief This method returns the HAL revision
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* @retval version : 0xXYZR (8bits for each decimal, R for RC)
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*/
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uint32_t HAL_GetHalVersion(void)
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{
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return __STM32F0xx_HAL_VERSION;
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}
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/**
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* @brief Returns the device revision identifier.
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* @retval Device revision identifier
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*/
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uint32_t HAL_GetREVID(void)
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{
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return((DBGMCU->IDCODE) >> 16U);
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}
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/**
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* @brief Returns the device identifier.
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* @retval Device identifier
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*/
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uint32_t HAL_GetDEVID(void)
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{
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return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK);
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}
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/**
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* @brief Returns first word of the unique device identifier (UID based on 96 bits)
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* @retval Device identifier
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*/
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uint32_t HAL_GetUIDw0(void)
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{
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return(READ_REG(*((uint32_t *)UID_BASE)));
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}
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/**
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* @brief Returns second word of the unique device identifier (UID based on 96 bits)
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* @retval Device identifier
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*/
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uint32_t HAL_GetUIDw1(void)
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{
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return(READ_REG(*((uint32_t *)(UID_BASE + 4U))));
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}
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/**
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* @brief Returns third word of the unique device identifier (UID based on 96 bits)
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* @retval Device identifier
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*/
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uint32_t HAL_GetUIDw2(void)
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{
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return(READ_REG(*((uint32_t *)(UID_BASE + 8U))));
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}
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/**
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* @brief Enable the Debug Module during STOP mode
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* @retval None
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*/
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void HAL_DBGMCU_EnableDBGStopMode(void)
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{
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SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
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}
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/**
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* @brief Disable the Debug Module during STOP mode
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* @retval None
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*/
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void HAL_DBGMCU_DisableDBGStopMode(void)
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{
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CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
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}
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/**
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* @brief Enable the Debug Module during STANDBY mode
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* @retval None
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*/
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void HAL_DBGMCU_EnableDBGStandbyMode(void)
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{
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SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
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}
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/**
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* @brief Disable the Debug Module during STANDBY mode
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* @retval None
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*/
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void HAL_DBGMCU_DisableDBGStandbyMode(void)
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{
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CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* HAL_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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