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rt-thread/bsp/stm32f7-disco/Libraries/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal.c

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/**
******************************************************************************
* @file stm32f7xx_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>&copy; 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 "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup HAL HAL
* @brief HAL module driver.
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup HAL_Private_Constants
* @{
*/
/**
* @brief STM32F7xx HAL Driver version number V1.2.5
*/
#define __STM32F7xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */
#define __STM32F7xx_HAL_VERSION_SUB1 (0x02) /*!< [23:16] sub1 version */
#define __STM32F7xx_HAL_VERSION_SUB2 (0x05) /*!< [15:8] sub2 version */
#define __STM32F7xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32F7xx_HAL_VERSION ((__STM32F7xx_HAL_VERSION_MAIN << 24)\
|(__STM32F7xx_HAL_VERSION_SUB1 << 16)\
|(__STM32F7xx_HAL_VERSION_SUB2 << 8 )\
|(__STM32F7xx_HAL_VERSION_RC))
#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFF)
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @addtogroup HAL_Private_Variables
* @{
*/
__IO uint32_t uwTick;
uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid PRIO */
HAL_TickFreqTypeDef uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Private 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 Configuration functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Initializes the Flash interface the NVIC allocation and initial clock
configuration. It initializes the systick 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 is used to initialize the HAL Library; it must be the first
* instruction to be executed in the main program (before to call any other
* HAL function), it performs the following:
* Configure the Flash prefetch, and instruction cache through ART accelerator.
* Configures the SysTick to generate an interrupt each 1 millisecond,
* which is clocked by the HSI (at this stage, the clock is not yet
* configured and thus the system is running from the internal HSI at 16 MHz).
* Set NVIC Group Priority to 4.
* Calls the HAL_MspInit() callback function defined in user file
* "stm32f7xx_hal_msp.c" to do the global low level hardware initialization
*
* @note SysTick is used as time base for the HAL_Delay() function, the application
* need to ensure that the SysTick time base is always set to 1 millisecond
* to have correct HAL operation.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_Init(void)
{
/* Configure Instruction cache through ART accelerator */
#if (ART_ACCLERATOR_ENABLE != 0)
__HAL_FLASH_ART_ENABLE();
#endif /* ART_ACCLERATOR_ENABLE */
/* Configure Flash prefetch */
#if (PREFETCH_ENABLE != 0U)
__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 HSI) */
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 systick.
* 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 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 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*/
if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) > 0U)
{
return HAL_ERROR;
}
/* Configure the SysTick IRQ priority */
if (TickPriority < (1UL << __NVIC_PRIO_BITS))
{
HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U);
uwTickPrio = TickPriority;
}
else
{
return HAL_ERROR;
}
/* Return function status */
return HAL_OK;
}
/**
* @}
*/
/** @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
(+) Enable/Disable Debug module during SLEEP mode
(+) Enable/Disable Debug module during STOP mode
(+) Enable/Disable Debug module during STANDBY 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.
* @retval None
*/
__weak void HAL_IncTick(void)
{
uwTick += uwTickFreq;
}
/**
* @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 returns a tick priority.
* @retval tick priority
*/
uint32_t HAL_GetTickPrio(void)
{
return uwTickPrio;
}
/**
* @brief Set new tick Freq.
* @retval Status
*/
HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq)
{
HAL_StatusTypeDef status = HAL_OK;
assert_param(IS_TICKFREQ(Freq));
if (uwTickFreq != Freq)
{
uwTickFreq = Freq;
/* Apply the new tick Freq */
status = HAL_InitTick(uwTickPrio);
}
return status;
}
/**
* @brief Return tick frequency.
* @retval tick period in Hz
*/
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 freq to guarantee 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 Returns the HAL revision
* @retval version : 0xXYZR (8bits for each decimal, R for RC)
*/
uint32_t HAL_GetHalVersion(void)
{
return __STM32F7xx_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 Returns 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 Returns 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 Returns 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))));
}
/**
* @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 STOP mode
* @retval None
*/
void HAL_DBGMCU_EnableDBGStopMode(void)
{
SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
}
/**
* @brief Disable the Debug Module during STOP mode
* @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);
}
/**
* @brief Enables the I/O Compensation Cell.
* @note The I/O compensation cell can be used only when the device supply
* voltage ranges from 2.4 to 3.6 V.
* @retval None
*/
void HAL_EnableCompensationCell(void)
{
SYSCFG->CMPCR |= SYSCFG_CMPCR_CMP_PD;
}
/**
* @brief Power-down the I/O Compensation Cell.
* @note The I/O compensation cell can be used only when the device supply
* voltage ranges from 2.4 to 3.6 V.
* @retval None
*/
void HAL_DisableCompensationCell(void)
{
SYSCFG->CMPCR &= (uint32_t)~((uint32_t)SYSCFG_CMPCR_CMP_PD);
}
/**
* @brief Enables the FMC Memory Mapping Swapping.
*
* @note SDRAM is accessible at 0x60000000
* and NOR/RAM is accessible at 0xC0000000
*
* @retval None
*/
void HAL_EnableFMCMemorySwapping(void)
{
SYSCFG->MEMRMP |= SYSCFG_MEMRMP_SWP_FMC_0;
}
/**
* @brief Disables the FMC Memory Mapping Swapping
*
* @note SDRAM is accessible at 0xC0000000 (default mapping)
* and NOR/RAM is accessible at 0x60000000 (default mapping)
*
* @retval None
*/
void HAL_DisableFMCMemorySwapping(void)
{
SYSCFG->MEMRMP &= (uint32_t)~((uint32_t)SYSCFG_MEMRMP_SWP_FMC);
}
#if defined (STM32F765xx) || defined (STM32F767xx) || defined (STM32F769xx) || defined (STM32F777xx) || defined (STM32F779xx)
/**
* @brief Enable the Internal FLASH Bank Swapping.
*
* @note This function can be used only for STM32F77xx/STM32F76xx devices.
*
* @note Flash Bank2 mapped at 0x08000000 (AXI) (aliased at 0x00200000 (TCM))
* and Flash Bank1 mapped at 0x08100000 (AXI) (aliased at 0x00300000 (TCM))
*
* @retval None
*/
void HAL_EnableMemorySwappingBank(void)
{
SET_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_SWP_FB);
}
/**
* @brief Disable the Internal FLASH Bank Swapping.
*
* @note This function can be used only for STM32F77xx/STM32F76xx devices.
*
* @note The default state : Flash Bank1 mapped at 0x08000000 (AXI) (aliased at 0x00200000 (TCM))
* and Flash Bank2 mapped at 0x08100000 (AXI)( aliased at 0x00300000 (TCM))
*
* @retval None
*/
void HAL_DisableMemorySwappingBank(void)
{
CLEAR_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_SWP_FB);
}
#endif /* STM32F767xx || STM32F769xx || STM32F777xx || STM32F779xx */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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