123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716 |
- /**
- ******************************************************************************
- * @file stm32l4xx_hal.c
- * @author MCD Application Team
- * @brief HAL module driver.
- * This is the common part of the HAL initialization
- *
- @verbatim
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
- [..]
- The common HAL driver contains a set of generic and common APIs that can be
- used by the PPP peripheral drivers and the user to start using the HAL.
- [..]
- The HAL contains two APIs' categories:
- (+) Common HAL APIs
- (+) Services HAL APIs
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
- /* Includes ------------------------------------------------------------------*/
- #include "stm32l4xx_hal.h"
- /** @addtogroup STM32L4xx_HAL_Driver
- * @{
- */
- /** @defgroup HAL HAL
- * @brief HAL module driver
- * @{
- */
- #ifdef HAL_MODULE_ENABLED
- /* Private typedef -----------------------------------------------------------*/
- /* Private define ------------------------------------------------------------*/
- /**
- * @brief STM32L4xx HAL Driver version number
- */
- #define STM32L4XX_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */
- #define STM32L4XX_HAL_VERSION_SUB1 (0x09U) /*!< [23:16] sub1 version */
- #define STM32L4XX_HAL_VERSION_SUB2 (0x00U) /*!< [15:8] sub2 version */
- #define STM32L4XX_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */
- #define STM32L4XX_HAL_VERSION ((STM32L4XX_HAL_VERSION_MAIN << 24U)\
- |(STM32L4XX_HAL_VERSION_SUB1 << 16U)\
- |(STM32L4XX_HAL_VERSION_SUB2 << 8U)\
- |(STM32L4XX_HAL_VERSION_RC))
- #if defined(VREFBUF)
- #define VREFBUF_TIMEOUT_VALUE 10U /* 10 ms (to be confirmed) */
- #endif /* VREFBUF */
- /* ------------ SYSCFG registers bit address in the alias region ------------ */
- #define SYSCFG_OFFSET (SYSCFG_BASE - PERIPH_BASE)
- /* --- MEMRMP Register ---*/
- /* Alias word address of FB_MODE bit */
- #define MEMRMP_OFFSET SYSCFG_OFFSET
- #define FB_MODE_BitNumber 8U
- #define FB_MODE_BB (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32U) + (FB_MODE_BitNumber * 4U))
- /* --- SCSR Register ---*/
- /* Alias word address of SRAM2ER bit */
- #define SCSR_OFFSET (SYSCFG_OFFSET + 0x18U)
- #define BRER_BitNumber 0U
- #define SCSR_SRAM2ER_BB (PERIPH_BB_BASE + (SCSR_OFFSET * 32U) + (BRER_BitNumber * 4U))
- /* Private macro -------------------------------------------------------------*/
- /* Private variables ---------------------------------------------------------*/
- /* Private function prototypes -----------------------------------------------*/
- /* Exported variables --------------------------------------------------------*/
- /** @defgroup HAL_Exported_Variables HAL Exported Variables
- * @{
- */
- __IO uint32_t uwTick;
- /**
- * @}
- */
- /* Exported functions --------------------------------------------------------*/
- /** @defgroup HAL_Exported_Functions HAL Exported Functions
- * @{
- */
- /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
- * @brief Initialization and de-initialization functions
- *
- @verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Initialize the Flash interface the NVIC allocation and initial time base
- clock configuration.
- (+) De-initialize common part of the HAL.
- (+) Configure the time base source to have 1ms time base with a dedicated
- Tick interrupt priority.
- (++) SysTick timer is used by default as source of time base, but user
- can eventually implement his proper time base source (a general purpose
- timer for example or other time source), keeping in mind that Time base
- duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
- handled in milliseconds basis.
- (++) Time base configuration function (HAL_InitTick ()) is called automatically
- at the beginning of the program after reset by HAL_Init() or at any time
- when clock is configured, by HAL_RCC_ClockConfig().
- (++) Source of time base is configured to generate interrupts at regular
- time intervals. Care must be taken if HAL_Delay() is called from a
- peripheral ISR process, the Tick interrupt line must have higher priority
- (numerically lower) than the peripheral interrupt. Otherwise the caller
- ISR process will be blocked.
- (++) functions affecting time base configurations are declared as __weak
- to make override possible in case of other implementations in user file.
- @endverbatim
- * @{
- */
- /**
- * @brief Configure the Flash prefetch, the Instruction and Data caches,
- * the time base source, NVIC and any required global low level hardware
- * by calling the HAL_MspInit() callback function to be optionally defined in user file
- * stm32l4xx_hal_msp.c.
- *
- * @note HAL_Init() function is called at the beginning of program after reset and before
- * the clock configuration.
- *
- * @note In the default implementation the System Timer (Systick) is used as source of time base.
- * The Systick configuration is based on MSI clock, as MSI is the clock
- * used after a system Reset and the NVIC configuration is set to Priority group 4.
- * Once done, time base tick starts incrementing: the tick variable counter is incremented
- * each 1ms in the SysTick_Handler() interrupt handler.
- *
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_Init(void)
- {
- HAL_StatusTypeDef status = HAL_OK;
- /* Configure Flash prefetch, Instruction cache, Data cache */
- /* Default configuration at reset is: */
- /* - Prefetch disabled */
- /* - Instruction cache enabled */
- /* - Data cache enabled */
- #if (INSTRUCTION_CACHE_ENABLE == 0)
- __HAL_FLASH_INSTRUCTION_CACHE_DISABLE();
- #endif /* INSTRUCTION_CACHE_ENABLE */
- #if (DATA_CACHE_ENABLE == 0)
- __HAL_FLASH_DATA_CACHE_DISABLE();
- #endif /* DATA_CACHE_ENABLE */
- #if (PREFETCH_ENABLE != 0)
- __HAL_FLASH_PREFETCH_BUFFER_ENABLE();
- #endif /* PREFETCH_ENABLE */
- /* Set Interrupt Group Priority */
- HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
- /* Use SysTick as time base source and configure 1ms tick (default clock after Reset is MSI) */
- if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
- {
- status = HAL_ERROR;
- }
- else
- {
- /* Init the low level hardware */
- HAL_MspInit();
- }
- /* Return function status */
- return status;
- }
- /**
- * @brief De-initialize common part of the HAL and stop the source of time base.
- * @note This function is optional.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_DeInit(void)
- {
- /* Reset of all peripherals */
- __HAL_RCC_APB1_FORCE_RESET();
- __HAL_RCC_APB1_RELEASE_RESET();
- __HAL_RCC_APB2_FORCE_RESET();
- __HAL_RCC_APB2_RELEASE_RESET();
- __HAL_RCC_AHB1_FORCE_RESET();
- __HAL_RCC_AHB1_RELEASE_RESET();
- __HAL_RCC_AHB2_FORCE_RESET();
- __HAL_RCC_AHB2_RELEASE_RESET();
- __HAL_RCC_AHB3_FORCE_RESET();
- __HAL_RCC_AHB3_RELEASE_RESET();
- /* De-Init the low level hardware */
- HAL_MspDeInit();
- /* Return function status */
- return HAL_OK;
- }
- /**
- * @brief Initialize the MSP.
- * @retval None
- */
- __weak void HAL_MspInit(void)
- {
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_MspInit could be implemented in the user file
- */
- }
- /**
- * @brief DeInitialize the MSP.
- * @retval None
- */
- __weak void HAL_MspDeInit(void)
- {
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_MspDeInit could be implemented in the user file
- */
- }
- /**
- * @brief This function configures the source of the time base:
- * The time source is configured to have 1ms time base with a dedicated
- * Tick interrupt priority.
- * @note This function is called automatically at the beginning of program after
- * reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig().
- * @note In the default implementation, SysTick timer is the source of time base.
- * It is used to generate interrupts at regular time intervals.
- * Care must be taken if HAL_Delay() is called from a peripheral ISR process,
- * The SysTick interrupt must have higher priority (numerically lower)
- * than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
- * The function is declared as __weak to be overwritten in case of other
- * implementation in user file.
- * @param TickPriority Tick interrupt priority.
- * @retval HAL status
- */
- __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
- {
- HAL_StatusTypeDef status = HAL_OK;
- /*Configure the SysTick to have interrupt in 1ms time basis*/
- if (HAL_SYSTICK_Config(SystemCoreClock/1000UL) != 0U)
- {
- status = HAL_ERROR;
- }
- else
- {
- /*Configure the SysTick IRQ priority */
- HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0);
- }
- /* Return function status */
- return status;
- }
- /**
- * @}
- */
- /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
- * @brief HAL Control functions
- *
- @verbatim
- ===============================================================================
- ##### HAL Control functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Provide a tick value in millisecond
- (+) Provide a blocking delay in millisecond
- (+) Suspend the time base source interrupt
- (+) Resume the time base source interrupt
- (+) Get the HAL API driver version
- (+) Get the device identifier
- (+) Get the device revision identifier
- @endverbatim
- * @{
- */
- /**
- * @brief This function is called to increment a global variable "uwTick"
- * used as application time base.
- * @note In the default implementation, this variable is incremented each 1ms
- * in SysTick ISR.
- * @note This function is declared as __weak to be overwritten in case of other
- * implementations in user file.
- * @retval None
- */
- __weak void HAL_IncTick(void)
- {
- uwTick++;
- }
- /**
- * @brief Provide a tick value in millisecond.
- * @note This function is declared as __weak to be overwritten in case of other
- * implementations in user file.
- * @retval tick value
- */
- __weak uint32_t HAL_GetTick(void)
- {
- return uwTick++;
- }
- /**
- * @brief This function provides minimum delay (in milliseconds) based
- * on variable incremented.
- * @note In the default implementation , SysTick timer is the source of time base.
- * It is used to generate interrupts at regular time intervals where uwTick
- * is incremented.
- * @note This function is declared as __weak to be overwritten in case of other
- * implementations in user file.
- * @param Delay specifies the delay time length, in milliseconds.
- * @retval None
- */
- __weak void HAL_Delay(uint32_t Delay)
- {
- uint32_t tickstart = HAL_GetTick();
- uint32_t wait = Delay;
- /* Add a period to guaranty minimum wait */
- if (wait < HAL_MAX_DELAY)
- {
- wait++;
- }
- while((HAL_GetTick() - tickstart) < wait)
- {
- }
- }
- /**
- * @brief Suspend Tick increment.
- * @note In the default implementation , SysTick timer is the source of time base. It is
- * used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
- * is called, the SysTick interrupt will be disabled and so Tick increment
- * is suspended.
- * @note This function is declared as __weak to be overwritten in case of other
- * implementations in user file.
- * @retval None
- */
- __weak void HAL_SuspendTick(void)
- {
- /* Disable SysTick Interrupt */
- SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
- }
- /**
- * @brief Resume Tick increment.
- * @note In the default implementation , SysTick timer is the source of time base. It is
- * used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
- * is called, the SysTick interrupt will be enabled and so Tick increment
- * is resumed.
- * @note This function is declared as __weak to be overwritten in case of other
- * implementations in user file.
- * @retval None
- */
- __weak void HAL_ResumeTick(void)
- {
- /* Enable SysTick Interrupt */
- SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk;
- }
- /**
- * @brief Return the HAL revision.
- * @retval version : 0xXYZR (8bits for each decimal, R for RC)
- */
- uint32_t HAL_GetHalVersion(void)
- {
- return STM32L4XX_HAL_VERSION;
- }
- /**
- * @brief Return the device revision identifier.
- * @retval Device revision identifier
- */
- uint32_t HAL_GetREVID(void)
- {
- return((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> 16);
- }
- /**
- * @brief Return the device identifier.
- * @retval Device identifier
- */
- uint32_t HAL_GetDEVID(void)
- {
- return(DBGMCU->IDCODE & DBGMCU_IDCODE_DEV_ID);
- }
- /**
- * @brief Return the first word of the unique device identifier (UID based on 96 bits)
- * @retval Device identifier
- */
- uint32_t HAL_GetUIDw0(void)
- {
- return(READ_REG(*((uint32_t *)UID_BASE)));
- }
- /**
- * @brief Return the second word of the unique device identifier (UID based on 96 bits)
- * @retval Device identifier
- */
- uint32_t HAL_GetUIDw1(void)
- {
- return(READ_REG(*((uint32_t *)(UID_BASE + 4U))));
- }
- /**
- * @brief Return the third word of the unique device identifier (UID based on 96 bits)
- * @retval Device identifier
- */
- uint32_t HAL_GetUIDw2(void)
- {
- return(READ_REG(*((uint32_t *)(UID_BASE + 8U))));
- }
- /**
- * @}
- */
- /** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
- * @brief HAL Debug functions
- *
- @verbatim
- ===============================================================================
- ##### HAL Debug functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Enable/Disable Debug module during SLEEP mode
- (+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
- (+) Enable/Disable Debug module during STANDBY mode
- @endverbatim
- * @{
- */
- /**
- * @brief Enable the Debug Module during SLEEP mode.
- * @retval None
- */
- void HAL_DBGMCU_EnableDBGSleepMode(void)
- {
- SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
- }
- /**
- * @brief Disable the Debug Module during SLEEP mode.
- * @retval None
- */
- void HAL_DBGMCU_DisableDBGSleepMode(void)
- {
- CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
- }
- /**
- * @brief Enable the Debug Module during STOP0/STOP1/STOP2 modes.
- * @retval None
- */
- void HAL_DBGMCU_EnableDBGStopMode(void)
- {
- SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
- }
- /**
- * @brief Disable the Debug Module during STOP0/STOP1/STOP2 modes.
- * @retval None
- */
- void HAL_DBGMCU_DisableDBGStopMode(void)
- {
- CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
- }
- /**
- * @brief Enable the Debug Module during STANDBY mode.
- * @retval None
- */
- void HAL_DBGMCU_EnableDBGStandbyMode(void)
- {
- SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
- }
- /**
- * @brief Disable the Debug Module during STANDBY mode.
- * @retval None
- */
- void HAL_DBGMCU_DisableDBGStandbyMode(void)
- {
- CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
- }
- /**
- * @}
- */
- /** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
- * @brief HAL SYSCFG configuration functions
- *
- @verbatim
- ===============================================================================
- ##### HAL SYSCFG configuration functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Start a hardware SRAM2 erase operation
- (+) Enable/Disable the Internal FLASH Bank Swapping
- (+) Configure the Voltage reference buffer
- (+) Enable/Disable the Voltage reference buffer
- (+) Enable/Disable the I/O analog switch voltage booster
- @endverbatim
- * @{
- */
- /**
- * @brief Start a hardware SRAM2 erase operation.
- * @note As long as SRAM2 is not erased the SRAM2ER bit will be set.
- * This bit is automatically reset at the end of the SRAM2 erase operation.
- * @retval None
- */
- void HAL_SYSCFG_SRAM2Erase(void)
- {
- /* unlock the write protection of the SRAM2ER bit */
- SYSCFG->SKR = 0xCA;
- SYSCFG->SKR = 0x53;
- /* Starts a hardware SRAM2 erase operation*/
- *(__IO uint32_t *) SCSR_SRAM2ER_BB = 0x00000001UL;
- }
- /**
- * @brief Enable the Internal FLASH Bank Swapping.
- *
- * @note This function can be used only for STM32L4xx devices.
- *
- * @note Flash Bank2 mapped at 0x08000000 (and aliased @0x00000000)
- * and Flash Bank1 mapped at 0x08100000 (and aliased at 0x00100000)
- *
- * @retval None
- */
- void HAL_SYSCFG_EnableMemorySwappingBank(void)
- {
- *(__IO uint32_t *)FB_MODE_BB = 0x00000000UL;
- }
- /**
- * @brief Disable the Internal FLASH Bank Swapping.
- *
- * @note This function can be used only for STM32L4xx devices.
- *
- * @note The default state : Flash Bank1 mapped at 0x08000000 (and aliased @0x0000 0000)
- * and Flash Bank2 mapped at 0x08100000 (and aliased at 0x00100000)
- *
- * @retval None
- */
- void HAL_SYSCFG_DisableMemorySwappingBank(void)
- {
- *(__IO uint32_t *)FB_MODE_BB = 0x00000000UL;
- }
- #if defined(VREFBUF)
- /**
- * @brief Configure the internal voltage reference buffer voltage scale.
- * @param VoltageScaling specifies the output voltage to achieve
- * This parameter can be one of the following values:
- * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE0: VREF_OUT1 around 2.048 V.
- * This requires VDDA equal to or higher than 2.4 V.
- * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE1: VREF_OUT2 around 2.5 V.
- * This requires VDDA equal to or higher than 2.8 V.
- * @retval None
- */
- void HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)
- {
- /* Check the parameters */
- assert_param(IS_SYSCFG_VREFBUF_VOLTAGE_SCALE(VoltageScaling));
- MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_VRS, VoltageScaling);
- }
- /**
- * @brief Configure the internal voltage reference buffer high impedance mode.
- * @param Mode specifies the high impedance mode
- * This parameter can be one of the following values:
- * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE: VREF+ pin is internally connect to VREFINT output.
- * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_ENABLE: VREF+ pin is high impedance.
- * @retval None
- */
- void HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)
- {
- /* Check the parameters */
- assert_param(IS_SYSCFG_VREFBUF_HIGH_IMPEDANCE(Mode));
- MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_HIZ, Mode);
- }
- /**
- * @brief Tune the Internal Voltage Reference buffer (VREFBUF).
- * @retval None
- */
- void HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)
- {
- /* Check the parameters */
- assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
- MODIFY_REG(VREFBUF->CCR, VREFBUF_CCR_TRIM, TrimmingValue);
- }
- /**
- * @brief Enable the Internal Voltage Reference buffer (VREFBUF).
- * @retval HAL_OK/HAL_TIMEOUT
- */
- HAL_StatusTypeDef HAL_SYSCFG_EnableVREFBUF(void)
- {
- uint32_t tickstart;
- SET_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
- /* Get Start Tick*/
- tickstart = HAL_GetTick();
- /* Wait for VRR bit */
- while(READ_BIT(VREFBUF->CSR, VREFBUF_CSR_VRR) == 0U)
- {
- if((HAL_GetTick() - tickstart) > VREFBUF_TIMEOUT_VALUE)
- {
- return HAL_TIMEOUT;
- }
- }
- return HAL_OK;
- }
- /**
- * @brief Disable the Internal Voltage Reference buffer (VREFBUF).
- *
- * @retval None
- */
- void HAL_SYSCFG_DisableVREFBUF(void)
- {
- CLEAR_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
- }
- #endif /* VREFBUF */
- /**
- * @brief Enable the I/O analog switch voltage booster
- *
- * @retval None
- */
- void HAL_SYSCFG_EnableIOAnalogSwitchBooster(void)
- {
- SET_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
- }
- /**
- * @brief Disable the I/O analog switch voltage booster
- *
- * @retval None
- */
- void HAL_SYSCFG_DisableIOAnalogSwitchBooster(void)
- {
- CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
- }
- /**
- * @}
- */
- /**
- * @}
- */
- #endif /* HAL_MODULE_ENABLED */
- /**
- * @}
- */
- /**
- * @}
- */
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|