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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_L053C8/stm32l0xx_hal.c
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diff -r 3d36234a1087 -r cb4d9db17537 targets/cmsis/TARGET_STM/TARGET_DISCO_L053C8/stm32l0xx_hal.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_DISCO_L053C8/stm32l0xx_hal.c Fri Oct 31 11:00:10 2014 +0000 @@ -0,0 +1,702 @@ +/** + ****************************************************************************** + * @file stm32l0xx_hal.c + * @author MCD Application Team + * @version V1.1.0 + * @date 18-June-2014 + * @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) 2014 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 "stm32l0xx_hal.h" + +/** @addtogroup STM32L0xx_HAL_Driver + * @{ + */ + +/** @defgroup HAL + * @brief HAL module driver. + * @{ + */ + +#ifdef HAL_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** + * @brief STM32L0xx HAL Driver version number V1.1.0 + */ +#define __STM32L0xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */ +#define __STM32L0xx_HAL_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */ +#define __STM32L0xx_HAL_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */ +#define __STM32L0xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */ +#define __STM32L0xx_HAL_VERSION ((__STM32L0xx_HAL_VERSION_MAIN << 24)\ + |(__STM32L0xx_HAL_VERSION_SUB1 << 16)\ + |(__STM32L0xx_HAL_VERSION_SUB2 << 8 )\ + |(__STM32L0xx_HAL_VERSION_RC)) + +#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFF) +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +static __IO uint32_t uwTick; +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/** @defgroup HAL_Private_Functions + * @{ + */ + +/** @defgroup HAL_Group1 Initialization and de-initialization Functions + * @brief Initialization and de-initialization functions + * +@verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Initializes the Flash interface, the NVIC allocation and initial clock + configuration. It initializes the source of time base also when timeout + is needed and the backup domain when enabled. + (+) de-Initializes 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 This function configures the Flash prefetch, Flash preread and Buffer cache, + * Configures time base source, NVIC and Low level hardware + * @note This function is called at the beginning of program after reset and before + * the clock configuration + * @note The time base configuration is based on MSI clock when exiting from Reset. + * Once done, time base tick start incrementing. + * In the default implementation,Systick is used as source of time base. + * the tick variable is incremented each 1ms in its ISR. + * @param None + * @retval HAL status + */ +HAL_StatusTypeDef HAL_Init(void) +{ + /* Configure Buffer cache, Flash prefetch, Flash preread */ +#if (BUFFER_CACHE_DISABLE != 0) + __HAL_FLASH_BUFFER_CACHE_DISABLE(); +#endif /* BUFFER_CACHE_DISABLE */ + +#if (PREREAD_ENABLE != 0) + __HAL_FLASH_PREREAD_BUFFER_ENABLE(); +#endif /* PREREAD_ENABLE */ + +#if (PREFETCH_ENABLE != 0) + __HAL_FLASH_PREFETCH_BUFFER_ENABLE(); +#endif /* PREFETCH_ENABLE */ + + /* Use systick as time base source and configure 1ms tick (default clock after Reset is MSI) */ + + HAL_InitTick(TICK_INT_PRIORITY); + + /* Init the low level hardware */ + HAL_MspInit(); + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief This function de-Initializes common part of the HAL and stops the source + * of time base. + * @note This function is optional. + * @param None + * @retval HAL status + */ +HAL_StatusTypeDef HAL_DeInit(void) +{ + /* Reset of all peripherals */ + __APB1_FORCE_RESET(); + __APB1_RELEASE_RESET(); + + __APB2_FORCE_RESET(); + __APB2_RELEASE_RESET(); + + __AHB_FORCE_RESET(); + __AHB_RELEASE_RESET(); + + __IOP_FORCE_RESET(); + __IOP_RELEASE_RESET(); + + /* De-Init the low level hardware */ + HAL_MspDeInit(); + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Initializes the MSP. + * @param None + * @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 DeInitializes the MSP. + * @param None + * @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 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) +{ + /*Configure the SysTick to have interrupt in 1ms time basis*/ + HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); + + /*Configure the SysTick IRQ priority */ + HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0); + + /* Return function status */ + return HAL_OK; +} + +/** @defgroup HAL_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 + (+) Configures low power mode behavior when the MCU is in Debug mode + +@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. + * @param None + * @retval None + */ +__weak void HAL_IncTick(void) +{ + uwTick++; +} + +/** + * @brief Provides a tick value in millisecond. + * @note This function is declared as __weak to be overwritten in case of other + * implementations in user file. + * @param None + * @retval tick value + */ +__weak uint32_t HAL_GetTick(void) +{ + return uwTick; +} + +/** + * @brief This function provides accurate 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(__IO uint32_t Delay) +{ + uint32_t tickstart = 0; + tickstart = HAL_GetTick(); + while((HAL_GetTick() - tickstart) < Delay) + { + } +} + +/** + * @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 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. + * @param None + * @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 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. + * @param None + * @retval None + */ +__weak void HAL_ResumeTick(void) +{ + /* Enable SysTick Interrupt */ + SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk; +} + +/** + * @brief Returns the HAL revision + * @param None + * @retval version: 0xXYZR (8bits for each decimal, R for RC) + */ +uint32_t HAL_GetHalVersion(void) +{ + return __STM32L0xx_HAL_VERSION; +} + +/** + * @brief Returns the device revision identifier. + * @param None + * @retval Device revision identifier + */ +uint32_t HAL_GetREVID(void) +{ + return((DBGMCU->IDCODE) >> 16); +} + +/** + * @brief Returns the device identifier. + * @param None + * @retval Device identifier + */ +uint32_t HAL_GetDEVID(void) +{ + return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK); +} + +/** + * @brief Enable the Debug Module during SLEEP mode + * @param None + * @retval None + */ +void HAL_EnableDBGSleepMode(void) +{ + SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP); +} + +/** + * @brief Disable the Debug Module during SLEEP mode + * @param None + * @retval None + */ +void HAL_DisableDBGSleepMode(void) +{ + CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP); +} + +/** + * @brief Enable the Debug Module during STOP mode + * @param None + * @retval None + */ +void HAL_EnableDBGStopMode(void) +{ + SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP); +} + +/** + * @brief Disable the Debug Module during STOP mode + * @param None + * @retval None + */ +void HAL_DisableDBGStopMode(void) +{ + CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP); +} + +/** + * @brief Enable the Debug Module during STANDBY mode + * @param None + * @retval None + */ +void HAL_EnableDBGStandbyMode(void) +{ + SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY); +} + +/** + * @brief Disable the Debug Module during STANDBY mode + * @param None + * @retval None + */ +void HAL_DisableDBGStandbyMode(void) +{ + CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY); +} + +/** + * @brief Configures low power mode behavior when the MCU is in Debug mode. + * @param Periph: specifies the low power mode. + * This parameter can be any combination of the following values: + * @arg DBGMCU_SLEEP: Keep debugger connection during SLEEP mode + * @arg DBGMCU_STOP: Keep debugger connection during STOP mode + * @arg DBGMCU_STANDBY: Keep debugger connection during STANDBY mode + * @param NewState: new state of the specified low power mode in Debug mode. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void HAL_DBG_LowPowerConfig(uint32_t Periph, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_DBGMCU_PERIPH(Periph)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + if (NewState != DISABLE) + { + DBGMCU->CR |= Periph; + } + else + { + DBGMCU->CR &= ~Periph; + } +} + +/** + * @brief Returns the boot mode as configured by user. + * @param None. + * @retval The boot mode as configured by user. The returned value can be one + * of the following values: + * - 0x00000000: Boot is configured in Main Flash memory + * - 0x00000100: Boot is configured in System Flash memory + * - 0x00000300: Boot is configured in Embedded SRAM memory + */ +uint32_t HAL_GetBootMode(void) +{ + return (SYSCFG->CFGR1 & SYSCFG_CFGR1_BOOT_MODE); +} + +/** + * @brief Configures the I2C fast mode plus driving capability. + * @param SYSCFG_I2CFastModePlus: selects the pin. + * This parameter can be one of the following values: + * @arg SYSCFG_I2CFastModePlus_PB6: Configure fast mode plus driving capability for PB6 + * @arg SYSCFG_I2CFastModePlus_PB7: Configure fast mode plus driving capability for PB7 + * @arg SYSCFG_I2CFastModePlus_PB8: Configure fast mode plus driving capability for PB8 + * @arg SYSCFG_I2CFastModePlus_PB9: Configure fast mode plus driving capability for PB9 + * @arg SYSCFG_I2CFastModePlus_I2C1: Configure fast mode plus driving capability for I2C1 pins + * @arg SYSCFG_I2CFastModePlus_I2C2: Configure fast mode plus driving capability for I2C2 pins + * @param NewState: This parameter can be: + * ENABLE: Enable fast mode plus driving capability for selected I2C pin + * DISABLE: Disable fast mode plus driving capability for selected I2C pin + * @note For I2C1, fast mode plus driving capability can be enabled on all selected + * I2C1 pins using SYSCFG_I2CFastModePlus_I2C1 parameter or independently + * on each one of the following pins PB6, PB7, PB8 and PB9. + * @note For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability + * can be enabled only by using SYSCFG_I2CFastModePlus_I2C1 parameter. + * @note For all I2C2 pins fast mode plus driving capability can be enabled + * only by using SYSCFG_I2CFastModePlus_I2C2 parameter. + * @retval None + */ +void HAL_I2CFastModePlusConfig(uint32_t SYSCFG_I2CFastModePlus, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_SYSCFG_I2C_FMP(SYSCFG_I2CFastModePlus)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable fast mode plus driving capability for selected pin */ + SYSCFG->CFGR2 |= (uint32_t)SYSCFG_I2CFastModePlus; + } + else + { + /* Disable fast mode plus driving capability for selected pin */ + SYSCFG->CFGR2 &= (uint32_t)(~SYSCFG_I2CFastModePlus); + } +} + +/** + * @brief Enables or disables the VREFINT. + * @param NewState: new state of the Vrefint. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void HAL_VREFINT_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the VREFINT by setting EN_VREFINT bit in the CFGR3 register */ + SYSCFG->CFGR3 |= SYSCFG_CFGR3_EN_VREFINT; + } + else + { + /* Disable the VREFINT by setting EN_VREFINT bit in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)SYSCFG_CFGR3_EN_VREFINT); + } +} + +/** + * @brief Selects the output of internal reference voltage (VREFINT). + * The VREFINT output can be routed to(PB0) or + * (PB1) or both. + * @param SYSCFG_Vrefint_OUTPUT: new state of the Vrefint output. + * This parameter can be one of the following values: + * @arg SYSCFG_VREFINT_OUT_NONE + * @arg SYSCFG_VREFINT_OUT_PB0 + * @arg SYSCFG_VREFINT_OUT_PB1 + * @arg SYSCFG_VREFINT_OUT_PB0_PB1 + * @retval None + */ +void HAL_VREFINT_OutputSelect(uint32_t SYSCFG_Vrefint_OUTPUT) +{ + /* Check the parameters */ + assert_param(IS_SYSCFG_VREFINT_OUT_SELECT(SYSCFG_Vrefint_OUTPUT)); + + /* Set the output Vrefint pin */ + SYSCFG->CFGR3 &= ~(SYSCFG_CFGR3_VREF_OUT); + SYSCFG->CFGR3 |= (uint32_t)(SYSCFG_Vrefint_OUTPUT); +} + +/** + * @brief Enables or disables the Buffer Vrefint for the ADC. + * @param NewState: new state of the Vrefint. + * This parameter can be: ENABLE or DISABLE. + * @note This is functional only if the LOCK is not set + * @retval None + */ +void HAL_ADC_EnableBuffer_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the Buffer for the ADC by setting EN_VREFINT bit and the ENBUF_VREFINT_ADC in the CFGR3 register */ + SYSCFG->CFGR3 |= (SYSCFG_CFGR3_ENBUF_VREFINT_ADC | SYSCFG_CFGR3_EN_VREFINT); + } + else + { + /* Disable the Vrefint by resetting ENBUF_BGAP_ADC bit and the EN_VREFINT bit in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)(SYSCFG_CFGR3_ENBUF_VREFINT_ADC | SYSCFG_CFGR3_EN_VREFINT)); + } +} + +/** + * @brief Enables or disables the Buffer Sensor for the ADC. + * @param NewState: new state of the Vrefint. + * This parameter can be: ENABLE or DISABLE. + * @note This is functional only if the LOCK is not set. + * @retval None + */ +void HAL_ADC_EnableBufferSensor_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the Buffer for the ADC by setting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */ + SYSCFG->CFGR3 |= (SYSCFG_CFGR3_ENBUF_SENSOR_ADC | SYSCFG_CFGR3_EN_VREFINT); + } + else + { + /* Disable the Vrefint by resetting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)(SYSCFG_CFGR3_ENBUF_SENSOR_ADC | SYSCFG_CFGR3_EN_VREFINT)); + } +} + +/** + * @brief Enables or disables the Buffer Vrefint for the COMP. + * @param NewState: new state of the Vrefint. + * This parameter can be: ENABLE or DISABLE. + * @note This is functional only if the LOCK is not set + * @retval None + */ +void HAL_COMP_EnableBuffer_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the Buffer for the COMP by setting EN_VREFINT bit and the ENBUFLP_VREFINT_COMP in the CFGR3 register */ + SYSCFG->CFGR3 |= (SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP | SYSCFG_CFGR3_EN_VREFINT); + } + else + { + /* Disable the Vrefint by resetting ENBUFLP_BGAP_COMP bit and the EN_VREFINT bit in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)(SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP | SYSCFG_CFGR3_EN_VREFINT)); + } +} + +/** + * @brief Enables or disables the Buffer Vrefint for the RC48. + * @param NewState: new state of the Vrefint. + * This parameter can be: ENABLE or DISABLE. + * @note This is functional only if the LOCK is not set + * @retval None + */ +void HAL_RC48_EnableBuffer_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the Buffer for the ADC by setting EN_VREFINT bit and the SYSCFG_CFGR3_ENREF_HSI48 in the CFGR3 register */ + SYSCFG->CFGR3 |= (SYSCFG_CFGR3_ENREF_HSI48 | SYSCFG_CFGR3_EN_VREFINT); + } + else + { + /* Disable the Vrefint by resetting SYSCFG_CFGR3_ENREF_HSI48 bit and the EN_VREFINT bit in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)(SYSCFG_CFGR3_ENREF_HSI48 | SYSCFG_CFGR3_EN_VREFINT)); + } +} + +/** + * @brief Enables or disables the Lock. + * @param NewState: new state of the Lock. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void HAL_Lock_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the LOCK by setting REF_LOCK bit in the CFGR3 register */ + SYSCFG->CFGR3 |= SYSCFG_CFGR3_REF_LOCK; + } + else + { + /* Disable the LOCK by setting REF_LOCK bit in the CFGR3 register */ + SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)SYSCFG_CFGR3_REF_LOCK); + } +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/