You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
766 lines
22 KiB
766 lines
22 KiB
/**
|
|
******************************************************************************
|
|
* @file stm32l4xx_hal.c
|
|
* @author MCD Application Team
|
|
* @brief HAL module driver.
|
|
* This is the common part of the HAL initialization
|
|
*
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2017 STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
@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
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* 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 (0x0DU) /*!< [23:16] sub1 version */
|
|
#define STM32L4XX_HAL_VERSION_SUB2 (0x04U) /*!< [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;
|
|
uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid priority */
|
|
HAL_TickFreqTypeDef uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/* 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;
|
|
|
|
/* Check uwTickFreq for MisraC 2012 (even if uwTickFreq is a enum type that doesn't take the value zero)*/
|
|
if ((uint32_t)uwTickFreq != 0U)
|
|
{
|
|
/*Configure the SysTick to have interrupt in 1ms time basis*/
|
|
if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / (uint32_t)uwTickFreq)) == 0U)
|
|
{
|
|
/* Configure the SysTick IRQ priority */
|
|
if (TickPriority < (1UL << __NVIC_PRIO_BITS))
|
|
{
|
|
HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U);
|
|
uwTickPrio = TickPriority;
|
|
}
|
|
else
|
|
{
|
|
status = HAL_ERROR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
status = HAL_ERROR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
status = HAL_ERROR;
|
|
}
|
|
|
|
/* 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 += (uint32_t)uwTickFreq;
|
|
}
|
|
|
|
/**
|
|
* @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 returns a tick priority.
|
|
* @retval tick priority
|
|
*/
|
|
uint32_t HAL_GetTickPrio(void)
|
|
{
|
|
return uwTickPrio;
|
|
}
|
|
|
|
/**
|
|
* @brief Set new tick Freq.
|
|
* @param Freq tick frequency
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
HAL_TickFreqTypeDef prevTickFreq;
|
|
|
|
if (uwTickFreq != Freq)
|
|
{
|
|
/* Back up uwTickFreq frequency */
|
|
prevTickFreq = uwTickFreq;
|
|
|
|
/* Update uwTickFreq global variable used by HAL_InitTick() */
|
|
uwTickFreq = Freq;
|
|
|
|
/* Apply the new tick Freq */
|
|
status = HAL_InitTick(uwTickPrio);
|
|
if (status != HAL_OK)
|
|
{
|
|
/* Restore previous tick frequency */
|
|
uwTickFreq = prevTickFreq;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Return tick frequency.
|
|
* @retval Tick frequency.
|
|
* Value of @ref HAL_TickFreqTypeDef.
|
|
*/
|
|
HAL_TickFreqTypeDef HAL_GetTickFreq(void)
|
|
{
|
|
return uwTickFreq;
|
|
}
|
|
|
|
/**
|
|
* @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 += (uint32_t)uwTickFreq;
|
|
}
|
|
|
|
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 = 0x00000001UL;
|
|
}
|
|
|
|
/**
|
|
* @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 */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|