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.
560 lines
17 KiB
560 lines
17 KiB
/**
|
|
******************************************************************************
|
|
* @file stm32l0xx_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) 2016 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
|
|
* @{
|
|
*/
|
|
|
|
#ifdef HAL_MODULE_ENABLED
|
|
|
|
/** @addtogroup HAL
|
|
* @brief HAL module driver.
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup HAL_Exported_Constants
|
|
* @{
|
|
*/
|
|
|
|
|
|
/** @defgroup SysTick System Tick
|
|
* @{
|
|
*/
|
|
/**
|
|
* @brief uwTick_variable uwTick variable
|
|
*/
|
|
__IO uint32_t uwTick;
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup HAL_Version HAL Version
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief STM32L0xx HAL Driver version number
|
|
*/
|
|
#define __STM32L0xx_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */
|
|
#define __STM32L0xx_HAL_VERSION_SUB1 (0x08U) /*!< [23:16] sub1 version */
|
|
#define __STM32L0xx_HAL_VERSION_SUB2 (0x02U) /*!< [15:8] sub2 version */
|
|
#define __STM32L0xx_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */
|
|
#define __STM32L0xx_HAL_VERSION ((__STM32L0xx_HAL_VERSION_MAIN << 24U)\
|
|
|(__STM32L0xx_HAL_VERSION_SUB1 << 16U)\
|
|
|(__STM32L0xx_HAL_VERSION_SUB2 << 8U )\
|
|
|(__STM32L0xx_HAL_VERSION_RC))
|
|
|
|
#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFFU)
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
/** @defgroup HAL_Private HAL Private
|
|
* @{
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @addtogroup HAL_Exported_Functions HAL Exported Functions
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup HAL_Exported_Functions_Group1
|
|
* @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.
|
|
* @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.
|
|
* @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_AHB_FORCE_RESET();
|
|
__HAL_RCC_AHB_RELEASE_RESET();
|
|
|
|
__HAL_RCC_IOP_FORCE_RESET();
|
|
__HAL_RCC_IOP_RELEASE_RESET();
|
|
|
|
/* De-Init the low level hardware */
|
|
HAL_MspDeInit();
|
|
|
|
/* Return function status */
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Initializes 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 DeInitializes 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 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(SystemCoreClock/1000U);
|
|
|
|
/*Configure the SysTick IRQ priority */
|
|
HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0U);
|
|
|
|
/* Return function status */
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @addtogroup HAL_Exported_Functions_Group2
|
|
* @brief Peripheral 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
|
|
(+) Configure low power mode behavior when the MCU is in Debug mode
|
|
(+) Manage the VEREFINT feature (activation, lock, output selection)
|
|
|
|
@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 Provides 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 accurate delay (in ms) based on a 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 = 0U;
|
|
tickstart = HAL_GetTick();
|
|
while((HAL_GetTick() - tickstart) < Delay)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Suspends the 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.
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_SuspendTick(void)
|
|
{
|
|
/* Disable SysTick Interrupt */
|
|
SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
|
|
}
|
|
|
|
/**
|
|
* @brief Resumes the 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.
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_ResumeTick(void)
|
|
{
|
|
/* Enable SysTick Interrupt */
|
|
SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk;
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the HAL revision
|
|
* @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.
|
|
* @retval Device revision identifier
|
|
*/
|
|
uint32_t HAL_GetREVID(void)
|
|
{
|
|
return((DBGMCU->IDCODE) >> 16U);
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the device identifier.
|
|
* @retval Device identifier
|
|
*/
|
|
uint32_t HAL_GetDEVID(void)
|
|
{
|
|
return((DBGMCU->IDCODE) & IDCODE_DEVID_MASK);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables the Debug Module during SLEEP mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_EnableDBGSleepMode(void)
|
|
{
|
|
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
|
|
}
|
|
|
|
/**
|
|
* @brief Disables the Debug Module during SLEEP mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DisableDBGSleepMode(void)
|
|
{
|
|
CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables the Debug Module during STOP mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_EnableDBGStopMode(void)
|
|
{
|
|
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
|
|
}
|
|
|
|
/**
|
|
* @brief Disables the Debug Module during STOP mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DisableDBGStopMode(void)
|
|
{
|
|
CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables the Debug Module during STANDBY mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_EnableDBGStandbyMode(void)
|
|
{
|
|
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
|
|
}
|
|
|
|
/**
|
|
* @brief Disables the Debug Module during STANDBY mode
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DisableDBGStandbyMode(void)
|
|
{
|
|
CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable 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
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DBG_EnableLowPowerConfig(uint32_t Periph)
|
|
{
|
|
/* Check the parameters */
|
|
assert_param(IS_DBGMCU_PERIPH(Periph));
|
|
|
|
DBGMCU->CR |= Periph;
|
|
|
|
}
|
|
/**
|
|
* @brief Disable 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
|
|
* @retval None
|
|
*/
|
|
void HAL_DBGMCU_DBG_DisableLowPowerConfig(uint32_t Periph)
|
|
{
|
|
/* Check the parameters */
|
|
assert_param(IS_DBGMCU_PERIPH(Periph));
|
|
{
|
|
DBGMCU->CR &= ~Periph;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the boot mode as configured by user.
|
|
* @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_SYSCFG_GetBootMode(void)
|
|
{
|
|
return (SYSCFG->CFGR1 & SYSCFG_CFGR1_BOOT_MODE);
|
|
}
|
|
|
|
/**
|
|
* @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_SYSCFG_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 Lock the SYSCFG VREF register values
|
|
* @retval None
|
|
*/
|
|
void HAL_SYSCFG_Enable_Lock_VREFINT(void)
|
|
{
|
|
/* Enable the LOCK by setting REF_LOCK bit in the CFGR3 register */
|
|
SET_BIT(SYSCFG->CFGR3, SYSCFG_CFGR3_REF_LOCK);
|
|
}
|
|
|
|
/**
|
|
* @brief Unlock the overall SYSCFG VREF register values
|
|
* @retval None
|
|
*/
|
|
void HAL_SYSCFG_Disable_Lock_VREFINT(void)
|
|
{
|
|
/* Disable the LOCK by setting REF_LOCK bit in the CFGR3 register */
|
|
CLEAR_BIT(SYSCFG->CFGR3, SYSCFG_CFGR3_REF_LOCK);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#endif /* HAL_MODULE_ENABLED */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
|
|
|
|