759 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			759 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/**
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  ******************************************************************************
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  * @file    stm32l4xx_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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         (+) Common HAL APIs
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         (+) Services HAL APIs
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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) 2017 STMicroelectronics.
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  * All rights reserved.</center></h2>
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  *
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  * This software component is licensed by ST under BSD 3-Clause license,
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  * the "License"; You may not use this file except in compliance with the
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  * License. You may obtain a copy of the License at:
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  *                        opensource.org/licenses/BSD-3-Clause
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  *
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  ******************************************************************************
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  */
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/* Includes ------------------------------------------------------------------*/
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#include "stm32l4xx_hal.h"
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/** @addtogroup STM32L4xx_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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/**
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 * @brief STM32L4xx HAL Driver version number
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   */
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#define STM32L4XX_HAL_VERSION_MAIN   (0x01U) /*!< [31:24] main version */
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#define STM32L4XX_HAL_VERSION_SUB1   (0x0AU) /*!< [23:16] sub1 version */
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#define STM32L4XX_HAL_VERSION_SUB2   (0x00U) /*!< [15:8]  sub2 version */
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#define STM32L4XX_HAL_VERSION_RC     (0x00U) /*!< [7:0]  release candidate */
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#define STM32L4XX_HAL_VERSION        ((STM32L4XX_HAL_VERSION_MAIN  << 24U)\
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                                      |(STM32L4XX_HAL_VERSION_SUB1 << 16U)\
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                                      |(STM32L4XX_HAL_VERSION_SUB2 << 8U)\
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                                      |(STM32L4XX_HAL_VERSION_RC))
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#if defined(VREFBUF)
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#define VREFBUF_TIMEOUT_VALUE     10U   /* 10 ms (to be confirmed) */
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#endif /* VREFBUF */
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/* ------------ SYSCFG registers bit address in the alias region ------------ */
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#define SYSCFG_OFFSET             (SYSCFG_BASE - PERIPH_BASE)
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/* ---  MEMRMP Register ---*/
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/* Alias word address of FB_MODE bit */
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#define MEMRMP_OFFSET             SYSCFG_OFFSET
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#define FB_MODE_BitNumber         8U
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#define FB_MODE_BB                (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32U) + (FB_MODE_BitNumber * 4U))
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/* --- SCSR Register ---*/
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/* Alias word address of SRAM2ER bit */
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#define SCSR_OFFSET               (SYSCFG_OFFSET + 0x18U)
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#define BRER_BitNumber            0U
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#define SCSR_SRAM2ER_BB           (PERIPH_BB_BASE + (SCSR_OFFSET * 32U) + (BRER_BitNumber * 4U))
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported variables --------------------------------------------------------*/
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/** @defgroup HAL_Exported_Variables HAL Exported Variables
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  * @{
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  */
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__IO uint32_t uwTick;
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uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid priority */
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uint32_t uwTickFreq = HAL_TICK_FREQ_DEFAULT;  /* 1KHz */
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/**
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  * @}
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  */
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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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      (+) Initialize the Flash interface, the NVIC allocation and initial time base
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          clock configuration.
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      (+) De-initialize 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  Configure the Flash prefetch, the Instruction and Data caches,
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  *         the time base source, NVIC and any required global low level hardware
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  *         by calling the HAL_MspInit() callback function to be optionally defined in user file
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  *         stm32l4xx_hal_msp.c.
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  *
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  * @note   HAL_Init() function is called at the beginning of program after reset and before
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  *         the clock configuration.
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  *
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  * @note   In the default implementation the System Timer (Systick) is used as source of time base.
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  *         The Systick configuration is based on MSI clock, as MSI is the clock
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  *         used after a system Reset and the NVIC configuration is set to Priority group 4.
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  *         Once done, time base tick starts incrementing: the tick variable counter is incremented
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  *         each 1ms in the SysTick_Handler() interrupt handler.
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  *
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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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  HAL_StatusTypeDef  status = HAL_OK;
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  /* Configure Flash prefetch, Instruction cache, Data cache */
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  /* Default configuration at reset is:                      */
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  /* - Prefetch disabled                                     */
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  /* - Instruction cache enabled                             */
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  /* - Data cache enabled                                    */
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#if (INSTRUCTION_CACHE_ENABLE == 0)
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   __HAL_FLASH_INSTRUCTION_CACHE_DISABLE();
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#endif /* INSTRUCTION_CACHE_ENABLE */
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#if (DATA_CACHE_ENABLE == 0)
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   __HAL_FLASH_DATA_CACHE_DISABLE();
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#endif /* DATA_CACHE_ENABLE */
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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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  /* Set Interrupt Group Priority */
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  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
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  /* Use SysTick as time base source and configure 1ms tick (default clock after Reset is MSI) */
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  if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
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  {
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    status = HAL_ERROR;
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  }
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  else
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  {
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    /* Init the low level hardware */
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    HAL_MspInit();
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  }
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  /* Return function status */
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  return status;
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}
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/**
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  * @brief De-initialize common part of the HAL and stop the source 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_AHB1_FORCE_RESET();
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  __HAL_RCC_AHB1_RELEASE_RESET();
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  __HAL_RCC_AHB2_FORCE_RESET();
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  __HAL_RCC_AHB2_RELEASE_RESET();
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  __HAL_RCC_AHB3_FORCE_RESET();
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  __HAL_RCC_AHB3_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  Initialize 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  DeInitialize 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 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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  HAL_StatusTypeDef  status = HAL_OK;
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  if (uwTickFreq != 0U)
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  {
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    /*Configure the SysTick to have interrupt in 1ms time basis*/
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    if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) == 0U)
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    {
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      /* Configure the SysTick IRQ priority */
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      if (TickPriority < (1UL << __NVIC_PRIO_BITS))
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      {
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        HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U);
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        uwTickPrio = TickPriority;
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      }
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      else
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      {
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        status = HAL_ERROR;
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      }
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    }
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    else
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    {
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      status = HAL_ERROR;
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    }
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  }
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  else
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  {
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    status = HAL_ERROR;
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  }
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  /* Return function status */
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  return status;
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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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@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 += uwTickFreq;
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}
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/**
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  * @brief Provide 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 returns a tick priority.
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  * @retval tick priority
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  */
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uint32_t HAL_GetTickPrio(void)
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{
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  return uwTickPrio;
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}
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/**
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  * @brief Set new tick Freq.
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  * @param Freq tick frequency
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  * @retval HAL status
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  */
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HAL_StatusTypeDef HAL_SetTickFreq(uint32_t Freq)
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{
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  HAL_StatusTypeDef status  = HAL_OK;
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  assert_param(IS_TICKFREQ(Freq));
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  if (uwTickFreq != Freq)
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  {
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    /* Apply the new tick Freq  */
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    status = HAL_InitTick(uwTickPrio);
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    if (status == HAL_OK)
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    {
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      uwTickFreq = Freq;
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    }
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  }
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  return status;
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}
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/**
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  * @brief Return tick frequency.
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  * @retval tick period in Hz
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  */
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uint32_t HAL_GetTickFreq(void)
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{
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  return uwTickFreq;
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}
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/**
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  * @brief This function provides minimum 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(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 guaranty minimum wait */
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  if (wait < HAL_MAX_DELAY)
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  {
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    wait += (uint32_t)(uwTickFreq);
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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 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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  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 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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  SysTick->CTRL  |= SysTick_CTRL_TICKINT_Msk;
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}
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/**
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  * @brief  Return 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 STM32L4XX_HAL_VERSION;
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}
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 | 
						|
/**
 | 
						|
  * @brief  Return the device revision identifier.
 | 
						|
  * @retval Device revision identifier
 | 
						|
  */
 | 
						|
uint32_t HAL_GetREVID(void)
 | 
						|
{
 | 
						|
  return((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> 16);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Return the device identifier.
 | 
						|
  * @retval Device identifier
 | 
						|
  */
 | 
						|
uint32_t HAL_GetDEVID(void)
 | 
						|
{
 | 
						|
  return(DBGMCU->IDCODE & DBGMCU_IDCODE_DEV_ID);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Return the 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  Return the 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  Return the 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))));
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
/** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
 | 
						|
 *  @brief    HAL Debug functions
 | 
						|
 *
 | 
						|
@verbatim
 | 
						|
 ===============================================================================
 | 
						|
                      ##### HAL Debug functions #####
 | 
						|
 ===============================================================================
 | 
						|
    [..]  This section provides functions allowing to:
 | 
						|
      (+) Enable/Disable Debug module during SLEEP mode
 | 
						|
      (+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
 | 
						|
      (+) Enable/Disable Debug module during STANDBY mode
 | 
						|
 | 
						|
@endverbatim
 | 
						|
  * @{
 | 
						|
  */
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Enable the Debug Module during SLEEP mode.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_DBGMCU_EnableDBGSleepMode(void)
 | 
						|
{
 | 
						|
  SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Disable the Debug Module during SLEEP mode.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_DBGMCU_DisableDBGSleepMode(void)
 | 
						|
{
 | 
						|
  CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Enable the Debug Module during STOP0/STOP1/STOP2 modes.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_DBGMCU_EnableDBGStopMode(void)
 | 
						|
{
 | 
						|
  SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Disable the Debug Module during STOP0/STOP1/STOP2 modes.
 | 
						|
  * @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);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
/** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
 | 
						|
 *  @brief    HAL SYSCFG configuration functions
 | 
						|
 *
 | 
						|
@verbatim
 | 
						|
 ===============================================================================
 | 
						|
                      ##### HAL SYSCFG configuration functions #####
 | 
						|
 ===============================================================================
 | 
						|
    [..]  This section provides functions allowing to:
 | 
						|
      (+) Start a hardware SRAM2 erase operation
 | 
						|
      (+) Enable/Disable the Internal FLASH Bank Swapping
 | 
						|
      (+) Configure the Voltage reference buffer
 | 
						|
      (+) Enable/Disable the Voltage reference buffer
 | 
						|
      (+) Enable/Disable the I/O analog switch voltage booster
 | 
						|
 | 
						|
@endverbatim
 | 
						|
  * @{
 | 
						|
  */
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Start a hardware SRAM2 erase operation.
 | 
						|
  * @note   As long as SRAM2 is not erased the SRAM2ER bit will be set.
 | 
						|
  *         This bit is automatically reset at the end of the SRAM2 erase operation.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_SRAM2Erase(void)
 | 
						|
{
 | 
						|
  /* unlock the write protection of the SRAM2ER bit */
 | 
						|
  SYSCFG->SKR = 0xCA;
 | 
						|
  SYSCFG->SKR = 0x53;
 | 
						|
  /* Starts a hardware SRAM2 erase operation*/
 | 
						|
  *(__IO uint32_t *) SCSR_SRAM2ER_BB = 0x00000001UL;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Enable the Internal FLASH Bank Swapping.
 | 
						|
  *
 | 
						|
  * @note   This function can be used only for STM32L4xx devices.
 | 
						|
  *
 | 
						|
  * @note   Flash Bank2 mapped at 0x08000000 (and aliased @0x00000000)
 | 
						|
  *         and Flash Bank1 mapped at 0x08100000 (and aliased at 0x00100000)
 | 
						|
  *
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_EnableMemorySwappingBank(void)
 | 
						|
{
 | 
						|
  *(__IO uint32_t *)FB_MODE_BB = 0x00000001UL;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Disable the Internal FLASH Bank Swapping.
 | 
						|
  *
 | 
						|
  * @note   This function can be used only for STM32L4xx devices.
 | 
						|
  *
 | 
						|
  * @note   The default state : Flash Bank1 mapped at 0x08000000 (and aliased @0x0000 0000)
 | 
						|
  *         and Flash Bank2 mapped at 0x08100000 (and aliased at 0x00100000)
 | 
						|
  *
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_DisableMemorySwappingBank(void)
 | 
						|
{
 | 
						|
 | 
						|
  *(__IO uint32_t *)FB_MODE_BB = 0x00000000UL;
 | 
						|
}
 | 
						|
 | 
						|
#if defined(VREFBUF)
 | 
						|
/**
 | 
						|
  * @brief Configure the internal voltage reference buffer voltage scale.
 | 
						|
  * @param VoltageScaling  specifies the output voltage to achieve
 | 
						|
  *          This parameter can be one of the following values:
 | 
						|
  *            @arg SYSCFG_VREFBUF_VOLTAGE_SCALE0: VREF_OUT1 around 2.048 V.
 | 
						|
  *                                                This requires VDDA equal to or higher than 2.4 V.
 | 
						|
  *            @arg SYSCFG_VREFBUF_VOLTAGE_SCALE1: VREF_OUT2 around 2.5 V.
 | 
						|
  *                                                This requires VDDA equal to or higher than 2.8 V.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)
 | 
						|
{
 | 
						|
  /* Check the parameters */
 | 
						|
  assert_param(IS_SYSCFG_VREFBUF_VOLTAGE_SCALE(VoltageScaling));
 | 
						|
 | 
						|
  MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_VRS, VoltageScaling);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief Configure the internal voltage reference buffer high impedance mode.
 | 
						|
  * @param Mode  specifies the high impedance mode
 | 
						|
  *          This parameter can be one of the following values:
 | 
						|
  *            @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE: VREF+ pin is internally connect to VREFINT output.
 | 
						|
  *            @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_ENABLE: VREF+ pin is high impedance.
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)
 | 
						|
{
 | 
						|
  /* Check the parameters */
 | 
						|
  assert_param(IS_SYSCFG_VREFBUF_HIGH_IMPEDANCE(Mode));
 | 
						|
 | 
						|
  MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_HIZ, Mode);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Tune the Internal Voltage Reference buffer (VREFBUF).
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)
 | 
						|
{
 | 
						|
  /* Check the parameters */
 | 
						|
  assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
 | 
						|
 | 
						|
  MODIFY_REG(VREFBUF->CCR, VREFBUF_CCR_TRIM, TrimmingValue);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Enable the Internal Voltage Reference buffer (VREFBUF).
 | 
						|
  * @retval HAL_OK/HAL_TIMEOUT
 | 
						|
  */
 | 
						|
HAL_StatusTypeDef HAL_SYSCFG_EnableVREFBUF(void)
 | 
						|
{
 | 
						|
  uint32_t  tickstart;
 | 
						|
 | 
						|
  SET_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
 | 
						|
 | 
						|
  /* Get Start Tick*/
 | 
						|
  tickstart = HAL_GetTick();
 | 
						|
 | 
						|
  /* Wait for VRR bit  */
 | 
						|
  while(READ_BIT(VREFBUF->CSR, VREFBUF_CSR_VRR) == 0U)
 | 
						|
  {
 | 
						|
    if((HAL_GetTick() - tickstart) > VREFBUF_TIMEOUT_VALUE)
 | 
						|
    {
 | 
						|
      return HAL_TIMEOUT;
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  return HAL_OK;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Disable the Internal Voltage Reference buffer (VREFBUF).
 | 
						|
  *
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_DisableVREFBUF(void)
 | 
						|
{
 | 
						|
  CLEAR_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
 | 
						|
}
 | 
						|
#endif /* VREFBUF */
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Enable the I/O analog switch voltage booster
 | 
						|
  *
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_EnableIOAnalogSwitchBooster(void)
 | 
						|
{
 | 
						|
  SET_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @brief  Disable the I/O analog switch voltage booster
 | 
						|
  *
 | 
						|
  * @retval None
 | 
						|
  */
 | 
						|
void HAL_SYSCFG_DisableIOAnalogSwitchBooster(void)
 | 
						|
{
 | 
						|
  CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
#endif /* HAL_MODULE_ENABLED */
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
/**
 | 
						|
  * @}
 | 
						|
  */
 | 
						|
 | 
						|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 |