34e43c7ee9
SysTick IRQ now increases millisecond counter directly (ie without calling HAL_IncTick). Provide our own version of HAL_Delay that does a wfi while waiting. This more than halves power consumption when running a loop containing a pyb.delay call. It used to be like this, but new version of HAL library regressed this feature.
537 lines
18 KiB
C
537 lines
18 KiB
C
/**
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******************************************************************************
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* @file stm32f4xx_hal.c
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* @author MCD Application Team
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* @version V1.1.0
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* @date 19-June-2014
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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) 2014 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 "stm32f4xx_hal.h"
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/** @addtogroup STM32F4xx_HAL_Driver
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* @{
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*/
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/** @defgroup HAL
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* @brief HAL module driver.
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/**
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* @brief STM32F4xx HAL Driver version number V1.1.0
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*/
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#define __STM32F4xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */
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#define __STM32F4xx_HAL_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */
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#define __STM32F4xx_HAL_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */
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#define __STM32F4xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */
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#define __STM32F4xx_HAL_VERSION ((__STM32F4xx_HAL_VERSION_MAIN << 24)\
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|(__STM32F4xx_HAL_VERSION_SUB1 << 16)\
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|(__STM32F4xx_HAL_VERSION_SUB2 << 8 )\
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|(__STM32F4xx_HAL_VERSION_RC))
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#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFF)
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/* ------------ RCC 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 UFB_MODE bit */
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#define MEMRMP_OFFSET SYSCFG_OFFSET
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#define UFB_MODE_BitNumber ((uint8_t)0x8)
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#define UFB_MODE_BB (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32) + (UFB_MODE_BitNumber * 4))
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/* --- CMPCR Register ---*/
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/* Alias word address of CMP_PD bit */
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#define CMPCR_OFFSET (SYSCFG_OFFSET + 0x20)
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#define CMP_PD_BitNumber ((uint8_t)0x00)
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#define CMPCR_CMP_PD_BB (PERIPH_BB_BASE + (CMPCR_OFFSET * 32) + (CMP_PD_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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/* Private functions ---------------------------------------------------------*/
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/** @defgroup HAL_Private_Functions
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* @{
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*/
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/** @defgroup HAL_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, instruction and Data caches.
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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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* "stm32f4xx_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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* @param None
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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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#if (INSTRUCTION_CACHE_ENABLE != 0)
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__HAL_FLASH_INSTRUCTION_CACHE_ENABLE();
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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_ENABLE();
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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 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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* This function is optional.
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* @param None
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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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__APB1_FORCE_RESET();
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__APB1_RELEASE_RESET();
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__APB2_FORCE_RESET();
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__APB2_RELEASE_RESET();
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__AHB1_FORCE_RESET();
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__AHB1_RELEASE_RESET();
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__AHB2_FORCE_RESET();
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__AHB2_RELEASE_RESET();
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__AHB3_FORCE_RESET();
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__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 Initializes the MSP.
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* @param None
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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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* @param None
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* @retval None
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*/
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__weak void HAL_MspDeInit(void)
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{
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_MspDeInit could be implemented in the user file
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*/
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}
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/**
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* @brief This function configures the source of the time base.
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* The time source is configured to have 1ms time base with a dedicated
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* Tick interrupt priority.
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* @note This function is called automatically at the beginning of program after
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* reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig().
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* @note In the default implementation, SysTick timer is the source of time base.
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* It is used to generate interrupts at regular time intervals.
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* Care must be taken if HAL_Delay() is called from a peripheral ISR process,
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* The the SysTick interrupt must have higher priority (numerically lower)
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* than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
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* The function is declared as __weak to be overwritten in case of other
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* implementation in user file.
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* @param TickPriority: Tick interrupt priority.
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* @retval HAL status
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*/
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__weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
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{
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/*Configure the SysTick to have interrupt in 1ms time basis*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/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_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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* @param None
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* @retval None
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*/
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__weak void HAL_IncTick(void)
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{
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uwTick++;
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}
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/**
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* @brief Provides a tick value in millisecond.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @param None
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* @retval tick value
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*/
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__weak uint32_t HAL_GetTick(void)
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{
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return uwTick;
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}
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/**
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* @brief This function provides accurate delay (in milliseconds) based
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* on variable incremented.
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* @note In the default implementation , SysTick timer is the source of time base.
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* It is used to generate interrupts at regular time intervals where uwTick
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* is incremented.
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* @note ThiS function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @param Delay: specifies the delay time length, in milliseconds.
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* @retval None
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*/
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__weak void HAL_Delay(__IO uint32_t Delay)
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{
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uint32_t tickstart = 0;
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tickstart = HAL_GetTick();
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while((HAL_GetTick() - tickstart) < Delay)
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{
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}
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}
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/**
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* @brief Suspend Tick increment.
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* @note In the default implementation , SysTick timer is the source of time base. It is
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* used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
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* is called, the the SysTick interrupt will be disabled and so Tick increment
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* is suspended.
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* @note This function is declared as __weak to be overwritten in case of other
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* implementations in user file.
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* @param None
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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 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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* @param None
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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 Returns the HAL revision
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* @param None
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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 __STM32F4xx_HAL_VERSION;
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}
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/**
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* @brief Returns the device revision identifier.
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* @param None
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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) >> 16);
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}
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/**
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* @brief Returns the device identifier.
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* @param None
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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 Enable the Debug Module during SLEEP mode
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* @param None
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* @retval None
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*/
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void HAL_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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* @param None
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* @retval None
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*/
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void HAL_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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* @param None
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* @retval None
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*/
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void HAL_EnableDBGStopMode(void)
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{
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SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
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}
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/**
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* @brief Disable the Debug Module during STOP mode
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* @param None
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* @retval None
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*/
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void HAL_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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* @param None
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* @retval None
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*/
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void HAL_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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* @param None
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* @retval None
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*/
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void HAL_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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* @brief Enables the I/O Compensation Cell.
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* @note The I/O compensation cell can be used only when the device supply
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* voltage ranges from 2.4 to 3.6 V.
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* @retval None
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*/
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void HAL_EnableCompensationCell(void)
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{
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*(__IO uint32_t *)CMPCR_CMP_PD_BB = (uint32_t)ENABLE;
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}
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/**
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* @brief Power-down the I/O Compensation Cell.
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* @note The I/O compensation cell can be used only when the device supply
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* voltage ranges from 2.4 to 3.6 V.
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* @retval None
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*/
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void HAL_DisableCompensationCell(void)
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{
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*(__IO uint32_t *)CMPCR_CMP_PD_BB = (uint32_t)DISABLE;
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}
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#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
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/**
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* @brief Enables the Internal FLASH Bank Swapping.
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*
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* @note This function can be used only for STM32F42xxx/43xxx devices.
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*
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* @note Flash Bank2 mapped at 0x08000000 (and aliased @0x00000000)
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* and Flash Bank1 mapped at 0x08100000 (and aliased at 0x00100000)
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*
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* @retval None
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*/
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void HAL_EnableMemorySwappingBank(void)
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{
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*(__IO uint32_t *)UFB_MODE_BB = (uint32_t)ENABLE;
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}
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/**
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* @brief Disables the Internal FLASH Bank Swapping.
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*
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* @note This function can be used only for STM32F42xxx/43xxx devices.
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*
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* @note The default state : Flash Bank1 mapped at 0x08000000 (and aliased @0x0000 0000)
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* and Flash Bank2 mapped at 0x08100000 (and aliased at 0x00100000)
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*
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* @retval None
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*/
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void HAL_DisableMemorySwappingBank(void)
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{
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*(__IO uint32_t *)UFB_MODE_BB = (uint32_t)DISABLE;
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}
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#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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