ref: 400b183c480845e1cd2c2f49f74baade00d2653c
dir: /demos/stm32f429_disco/stm/stm32f4_spl/src/stm32f4xx_hal.c/
/**
******************************************************************************
* @file stm32f4xx_hal.c
* @author MCD Application Team
* @version V1.0.0
* @date 18-February-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 "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @defgroup HAL
* @brief HAL module driver.
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/**
* @brief STM32F4xx HAL Driver version number V1.0.0
*/
#define __STM32F4xx_HAL_VERSION_MAIN (0x01) /*!< [31:24] main version */
#define __STM32F4xx_HAL_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
#define __STM32F4xx_HAL_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */
#define __STM32F4xx_HAL_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32F4xx_HAL_VERSION ((__STM32F4xx_HAL_VERSION_MAIN << 24)\
|(__STM32F4xx_HAL_VERSION_SUB1 << 16)\
|(__STM32F4xx_HAL_VERSION_SUB2 << 8 )\
|(__STM32F4xx_HAL_VERSION_RC))
#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFF)
/* ------------ RCC registers bit address in the alias region ----------- */
#define SYSCFG_OFFSET (SYSCFG_BASE - PERIPH_BASE)
/* --- MEMRMP Register ---*/
/* Alias word address of UFB_MODE bit */
#define MEMRMP_OFFSET SYSCFG_OFFSET
#define UFB_MODE_BitNumber ((uint8_t)0x8)
#define UFB_MODE_BB (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32) + (UFB_MODE_BitNumber * 4))
/* --- CMPCR Register ---*/
/* Alias word address of CMP_PD bit */
#define CMPCR_OFFSET (SYSCFG_OFFSET + 0x20)
#define CMP_PD_BitNumber ((uint8_t)0x00)
#define CMPCR_CMP_PD_BB (PERIPH_BB_BASE + (CMPCR_OFFSET * 32) + (CMP_PD_BitNumber * 4))
/* 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 systick also when timeout is needed
and the backup domain when enabled.
(+) de-Initializes common part of the HAL
@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, instruction and Data caches
* - 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
* stm32f4xx_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.
* @note
* @param None
* @retval HAL status
*/
HAL_StatusTypeDef HAL_Init(void)
{
/* Configure Flash prefetch, Instruction cache, Data cache */
#if (INSTRUCTION_CACHE_ENABLE != 0)
__HAL_FLASH_INSTRUCTION_CACHE_ENABLE();
#endif /* INSTRUCTION_CACHE_ENABLE */
#if (DATA_CACHE_ENABLE != 0)
__HAL_FLASH_DATA_CACHE_ENABLE();
#endif /* DATA_CACHE_ENABLE */
#if (PREFETCH_ENABLE != 0)
__HAL_FLASH_PREFETCH_BUFFER_ENABLE();
#endif /* PREFETCH_ENABLE */
/* Enable systick and configure 1ms tick (default clock after Reset is HSI) */
HAL_SYSTICK_Config(HSI_VALUE/ 1000);
/* Set Interrupt Group Priority */
HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
/* 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.
* @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();
__AHB1_FORCE_RESET();
__AHB1_RELEASE_RESET();
__AHB2_FORCE_RESET();
__AHB2_RELEASE_RESET();
__AHB3_FORCE_RESET();
__AHB3_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
*/
}
/**
* @}
*/
/** @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
(+) 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 from SysTick ISR each 1 millisecond, to increment
* a global variable "uwTick" used as time base.
* @param None
* @retval None
*/
void HAL_IncTick(void)
{
uwTick++;
}
/**
* @brief Povides a tick value in millisecond.
* @param Non
* @retval tick value
*/
uint32_t HAL_GetTick(void)
{
return uwTick;
}
/**
* @brief Provides a blocking delay in millisecond.
* @note Care must be taken when using HAL_Delay(), this function provides accurate delay
* (in milliseconds) based on variable incremented in SysTick ISR. This implies that
* if HAL_Delay() is called from a peripheral ISR process, then the SysTick interrupt
* must have higher priority (numerically lower) than the peripheral interrupt.
* Otherwise the caller ISR process will be blocked. To change the SysTick interrupt
* priority you have to use HAL_NVIC_SetPriority() function.
* @param Delay : specifies the delay time length, in milliseconds.
* @retval None
*/
void HAL_Delay(__IO uint32_t Delay)
{
uint32_t timingdelay;
timingdelay = HAL_GetTick() + Delay;
while(HAL_GetTick() < timingdelay)
{
}
}
/**
* @brief Returns the HAL revision
* @param None
* @retval version : 0xXYZR (8bits for each decimal, R for RC)
*/
uint32_t HAL_GetHalVersion(void)
{
return __STM32F4xx_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 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)
{
*(__IO uint32_t *)CMPCR_CMP_PD_BB = (uint32_t)ENABLE;
}
/**
* @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)
{
*(__IO uint32_t *)CMPCR_CMP_PD_BB = (uint32_t)DISABLE;
}
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
/**
* @brief Enables the Internal FLASH Bank Swapping.
*
* @note This function can be used only for STM32F42xxx/43xxx devices.
*
* @note Flash Bank2 mapped at 0x08000000 (and aliased @0x00000000)
* and Flash Bank1 mapped at 0x08100000 (and aliased at 0x00100000)
*
* @retval None
*/
void HAL_EnableMemorySwappingBank(void)
{
*(__IO uint32_t *)UFB_MODE_BB = (uint32_t)ENABLE;
}
/**
* @brief Disables the Internal FLASH Bank Swapping.
*
* @note This function can be used only for STM32F42xxx/43xxx 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_DisableMemorySwappingBank(void)
{
*(__IO uint32_t *)UFB_MODE_BB = (uint32_t)DISABLE;
}
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/