696 lines
22 KiB
C
696 lines
22 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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* @version V1.7.2
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* @date 16-June-2017
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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</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 "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 V1.7.2
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*/
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#define __STM32L4xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */
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#define __STM32L4xx_HAL_VERSION_SUB1 (0x07) /*!< [23:16] sub1 version */
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#define __STM32L4xx_HAL_VERSION_SUB2 (0x02) /*!< [15:8] sub2 version */
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#define __STM32L4xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */
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#define __STM32L4xx_HAL_VERSION ((__STM32L4xx_HAL_VERSION_MAIN << 24)\
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|(__STM32L4xx_HAL_VERSION_SUB1 << 16)\
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|(__STM32L4xx_HAL_VERSION_SUB2 << 8 )\
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|(__STM32L4xx_HAL_VERSION_RC))
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#if defined(VREFBUF)
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#define VREFBUF_TIMEOUT_VALUE (uint32_t)10 /* 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 ((uint8_t)0x8)
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#define FB_MODE_BB (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32) + (FB_MODE_BitNumber * 4))
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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 + 0x18)
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#define BRER_BitNumber ((uint8_t)0x0)
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#define SCSR_SRAM2ER_BB (PERIPH_BB_BASE + (SCSR_OFFSET * 32) + (BRER_BitNumber * 4))
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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__IO uint32_t uwTick;
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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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(+) 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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/* 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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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 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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/*Configure the SysTick to have interrupt in 1ms time basis*/
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HAL_SYSTICK_Config(SystemCoreClock/1000);
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/*Configure the SysTick IRQ priority */
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HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);
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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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@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 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 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++;
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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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/**
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* @brief Return 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 & DBGMCU_IDCODE_REV_ID) >> 16);
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}
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/**
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* @brief Return 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 & DBGMCU_IDCODE_DEV_ID);
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}
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/**
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* @brief Return the 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 Return the 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 Return the 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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* @}
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*/
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/** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
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* @brief HAL Debug functions
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*
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@verbatim
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===============================================================================
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##### HAL Debug functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Enable/Disable Debug module during SLEEP mode
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(+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
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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 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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* @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 STOP0/STOP1/STOP2 modes.
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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 STOP0/STOP1/STOP2 modes.
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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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/** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
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* @brief HAL SYSCFG configuration functions
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*
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@verbatim
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===============================================================================
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##### HAL SYSCFG configuration functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Start a hardware SRAM2 erase operation
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(+) Enable/Disable the Internal FLASH Bank Swapping
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(+) Configure the Voltage reference buffer
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(+) Enable/Disable the Voltage reference buffer
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(+) Enable/Disable the I/O analog switch voltage booster
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@endverbatim
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* @{
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*/
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/**
|
|
* @brief Start a hardware SRAM2 erase operation.
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|
* @note As long as SRAM2 is not erased the SRAM2ER bit will be set.
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* This bit is automatically reset at the end of the SRAM2 erase operation.
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* @retval None
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|
*/
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void HAL_SYSCFG_SRAM2Erase(void)
|
|
{
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/* unlock the write protection of the SRAM2ER bit */
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SYSCFG->SKR = 0xCA;
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SYSCFG->SKR = 0x53;
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/* Starts a hardware SRAM2 erase operation*/
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*(__IO uint32_t *) SCSR_SRAM2ER_BB = (uint8_t)0x00000001;
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}
|
|
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|
/**
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|
* @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)
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|
*
|
|
* @retval None
|
|
*/
|
|
void HAL_SYSCFG_EnableMemorySwappingBank(void)
|
|
{
|
|
*(__IO uint32_t *)FB_MODE_BB = (uint32_t)ENABLE;
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|
}
|
|
|
|
/**
|
|
* @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 = (uint32_t)DISABLE;
|
|
}
|
|
|
|
#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 = 0;
|
|
|
|
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) == RESET)
|
|
{
|
|
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****/
|