607 lines
20 KiB
C
607 lines
20 KiB
C
/**
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******************************************************************************
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* @file stm32f1xx_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) 2016 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 "stm32f1xx_hal.h"
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/** @addtogroup STM32F1xx_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 STM32F1xx HAL Driver version number V1.1.8
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*/
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#define __STM32F1xx_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */
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#define __STM32F1xx_HAL_VERSION_SUB1 (0x01U) /*!< [23:16] sub1 version */
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#define __STM32F1xx_HAL_VERSION_SUB2 (0x08U) /*!< [15:8] sub2 version */
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#define __STM32F1xx_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */
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#define __STM32F1xx_HAL_VERSION ((__STM32F1xx_HAL_VERSION_MAIN << 24)\
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|(__STM32F1xx_HAL_VERSION_SUB1 << 16)\
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|(__STM32F1xx_HAL_VERSION_SUB2 << 8 )\
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|(__STM32F1xx_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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/* 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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uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid PRIO */
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HAL_TickFreqTypeDef uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */
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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 systick also when timeout is needed
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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 is used to initialize the HAL Library; it must be the first
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* instruction to be executed in the main program (before to call any other
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* HAL function), it performs the following:
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* Configure the Flash prefetch.
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* Configures the SysTick to generate an interrupt each 1 millisecond,
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* which is clocked by the HSI (at this stage, the clock is not yet
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* configured and thus the system is running from the internal HSI at 16 MHz).
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* Set NVIC Group Priority to 4.
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* Calls the HAL_MspInit() callback function defined in user file
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* "stm32f1xx_hal_msp.c" to do the global low level hardware initialization
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*
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* @note SysTick is used as time base for the HAL_Delay() function, the application
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* need to ensure that the SysTick time base is always set to 1 millisecond
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* to have correct HAL operation.
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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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#if defined(STM32F101x6) || defined(STM32F101xB) || defined(STM32F101xE) || defined(STM32F101xG) || \
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defined(STM32F102x6) || defined(STM32F102xB) || \
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defined(STM32F103x6) || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG) || \
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defined(STM32F105xC) || defined(STM32F107xC)
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/* Prefetch buffer is not available on value line devices */
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__HAL_FLASH_PREFETCH_BUFFER_ENABLE();
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#endif
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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 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 systick.
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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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#if defined(STM32F105xC) || defined(STM32F107xC)
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__HAL_RCC_AHB_FORCE_RESET();
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__HAL_RCC_AHB_RELEASE_RESET();
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#endif
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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 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 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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if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) > 0U)
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{
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return HAL_ERROR;
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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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return HAL_ERROR;
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}
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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 += uwTickFreq;
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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 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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* @retval status
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*/
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HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq)
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{
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HAL_StatusTypeDef status = HAL_OK;
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HAL_TickFreqTypeDef prevTickFreq;
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assert_param(IS_TICKFREQ(Freq));
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if (uwTickFreq != Freq)
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{
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/* Back up uwTickFreq frequency */
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prevTickFreq = uwTickFreq;
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/* Update uwTickFreq global variable used by HAL_InitTick() */
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uwTickFreq = Freq;
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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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/* Restore previous tick frequency */
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uwTickFreq = prevTickFreq;
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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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HAL_TickFreqTypeDef 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 freq to guarantee 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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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 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 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 __STM32F1xx_HAL_VERSION;
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}
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/**
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* @brief Returns the device revision identifier.
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* Note: On devices STM32F10xx8 and STM32F10xxB,
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* STM32F101xC/D/E and STM32F103xC/D/E,
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* STM32F101xF/G and STM32F103xF/G
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* STM32F10xx4 and STM32F10xx6
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* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
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* debug mode (not accessible by the user software in normal mode).
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* Refer to errata sheet of these devices for more details.
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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) >> DBGMCU_IDCODE_REV_ID_Pos);
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}
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/**
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* @brief Returns the device identifier.
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* Note: On devices STM32F10xx8 and STM32F10xxB,
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* STM32F101xC/D/E and STM32F103xC/D/E,
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* STM32F101xF/G and STM32F103xF/G
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* STM32F10xx4 and STM32F10xx6
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* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
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* debug mode (not accessible by the user software in normal mode).
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* Refer to errata sheet of these devices for more details.
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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 SLEEP mode
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* @retval None
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*/
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void HAL_DBGMCU_EnableDBGSleepMode(void)
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{
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SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
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}
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/**
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* @brief Disable the Debug Module during SLEEP mode
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* Note: On devices STM32F10xx8 and STM32F10xxB,
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* STM32F101xC/D/E and STM32F103xC/D/E,
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* STM32F101xF/G and STM32F103xF/G
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* STM32F10xx4 and STM32F10xx6
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* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
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* debug mode (not accessible by the user software in normal mode).
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* Refer to errata sheet of these devices for more details.
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* @retval None
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*/
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void HAL_DBGMCU_DisableDBGSleepMode(void)
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{
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CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
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}
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/**
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* @brief Enable the Debug Module during STOP mode
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* Note: On devices STM32F10xx8 and STM32F10xxB,
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* STM32F101xC/D/E and STM32F103xC/D/E,
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* STM32F101xF/G and STM32F103xF/G
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* STM32F10xx4 and STM32F10xx6
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* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
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* debug mode (not accessible by the user software in normal mode).
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* Refer to errata sheet of these devices for more details.
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* Note: On all STM32F1 devices:
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* If the system tick timer interrupt is enabled during the Stop mode
|
|
* debug (DBG_STOP bit set in the DBGMCU_CR register ), it will wakeup
|
|
* the system from Stop mode.
|
|
* Workaround: To debug the Stop mode, disable the system tick timer
|
|
* interrupt.
|
|
* Refer to errata sheet of these devices for more details.
|
|
* Note: On all STM32F1 devices:
|
|
* If the system tick timer interrupt is enabled during the Stop mode
|
|
* debug (DBG_STOP bit set in the DBGMCU_CR register ), it will wakeup
|
|
* the system from Stop mode.
|
|
* Workaround: To debug the Stop mode, disable the system tick timer
|
|
* interrupt.
|
|
* Refer to errata sheet of these devices for more details.
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_EnableDBGStopMode(void)
|
|
{
|
|
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the Debug Module during STOP mode
|
|
* Note: On devices STM32F10xx8 and STM32F10xxB,
|
|
* STM32F101xC/D/E and STM32F103xC/D/E,
|
|
* STM32F101xF/G and STM32F103xF/G
|
|
* STM32F10xx4 and STM32F10xx6
|
|
* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
|
|
* debug mode (not accessible by the user software in normal mode).
|
|
* Refer to errata sheet of these devices for more details.
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DisableDBGStopMode(void)
|
|
{
|
|
CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable the Debug Module during STANDBY mode
|
|
* Note: On devices STM32F10xx8 and STM32F10xxB,
|
|
* STM32F101xC/D/E and STM32F103xC/D/E,
|
|
* STM32F101xF/G and STM32F103xF/G
|
|
* STM32F10xx4 and STM32F10xx6
|
|
* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
|
|
* debug mode (not accessible by the user software in normal mode).
|
|
* Refer to errata sheet of these devices for more details.
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_EnableDBGStandbyMode(void)
|
|
{
|
|
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the Debug Module during STANDBY mode
|
|
* Note: On devices STM32F10xx8 and STM32F10xxB,
|
|
* STM32F101xC/D/E and STM32F103xC/D/E,
|
|
* STM32F101xF/G and STM32F103xF/G
|
|
* STM32F10xx4 and STM32F10xx6
|
|
* Debug registers DBGMCU_IDCODE and DBGMCU_CR are accessible only in
|
|
* debug mode (not accessible by the user software in normal mode).
|
|
* Refer to errata sheet of these devices for more details.
|
|
* @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****/
|