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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
*
******************************************************************************
* @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 "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 V1.2.10
*/
#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 (0x0A) /*!< [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 -------------------------------------------------------------*/
/* Exported variables ---------------------------------------------------------*/
/** @addtogroup HAL_Exported_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;
HAL_TickFreqTypeDef prevTickFreq;
assert_param(IS_TICKFREQ(Freq));
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 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 */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32f7xx_hal_cortex.c
* @author MCD Application Team
* @brief CORTEX HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the CORTEX:
* + Initialization and de-initialization functions
* + Peripheral Control functions
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
*** How to configure Interrupts using CORTEX HAL driver ***
===========================================================
[..]
This section provides functions allowing to configure the NVIC interrupts (IRQ).
The Cortex-M4 exceptions are managed by CMSIS functions.
(#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping()
function according to the following table.
(#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority().
(#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ().
(#) please refer to programming manual for details in how to configure priority.
-@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ preemption is no more possible.
The pending IRQ priority will be managed only by the sub priority.
-@- IRQ priority order (sorted by highest to lowest priority):
(+@) Lowest preemption priority
(+@) Lowest sub priority
(+@) Lowest hardware priority (IRQ number)
[..]
*** How to configure Systick using CORTEX HAL driver ***
========================================================
[..]
Setup SysTick Timer for time base.
(+) The HAL_SYSTICK_Config() function calls the SysTick_Config() function which
is a CMSIS function that:
(++) Configures the SysTick Reload register with value passed as function parameter.
(++) Configures the SysTick IRQ priority to the lowest value (0x0F).
(++) Resets the SysTick Counter register.
(++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
(++) Enables the SysTick Interrupt.
(++) Starts the SysTick Counter.
(+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
__HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
inside the stm32f7xx_hal_cortex.h file.
(+) You can change the SysTick IRQ priority by calling the
HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
(+) To adjust the SysTick time base, use the following formula:
Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
(++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
(++) Reload Value should not exceed 0xFFFFFF
@endverbatim
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup CORTEX CORTEX
* @brief CORTEX HAL module driver
* @{
*/
#ifdef HAL_CORTEX_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup CORTEX_Exported_Functions CORTEX Exported Functions
* @{
*/
/** @defgroup CORTEX_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
*
@verbatim
==============================================================================
##### Initialization and de-initialization functions #####
==============================================================================
[..]
This section provides the CORTEX HAL driver functions allowing to configure Interrupts
Systick functionalities
@endverbatim
* @{
*/
/**
* @brief Sets the priority grouping field (preemption priority and subpriority)
* using the required unlock sequence.
* @param PriorityGroup The priority grouping bits length.
* This parameter can be one of the following values:
* @arg NVIC_PRIORITYGROUP_0: 0 bits for preemption priority
* 4 bits for subpriority
* @arg NVIC_PRIORITYGROUP_1: 1 bits for preemption priority
* 3 bits for subpriority
* @arg NVIC_PRIORITYGROUP_2: 2 bits for preemption priority
* 2 bits for subpriority
* @arg NVIC_PRIORITYGROUP_3: 3 bits for preemption priority
* 1 bits for subpriority
* @arg NVIC_PRIORITYGROUP_4: 4 bits for preemption priority
* 0 bits for subpriority
* @note When the NVIC_PriorityGroup_0 is selected, IRQ preemption is no more possible.
* The pending IRQ priority will be managed only by the subpriority.
* @retval None
*/
void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
{
/* Check the parameters */
assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
/* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */
NVIC_SetPriorityGrouping(PriorityGroup);
}
/**
* @brief Sets the priority of an interrupt.
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @param PreemptPriority The preemption priority for the IRQn channel.
* This parameter can be a value between 0 and 15
* A lower priority value indicates a higher priority
* @param SubPriority the subpriority level for the IRQ channel.
* This parameter can be a value between 0 and 15
* A lower priority value indicates a higher priority.
* @retval None
*/
void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
{
uint32_t prioritygroup = 0x00;
/* Check the parameters */
assert_param(IS_NVIC_SUB_PRIORITY(SubPriority));
assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
prioritygroup = NVIC_GetPriorityGrouping();
NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority));
}
/**
* @brief Enables a device specific interrupt in the NVIC interrupt controller.
* @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
* function should be called before.
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval None
*/
void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Enable interrupt */
NVIC_EnableIRQ(IRQn);
}
/**
* @brief Disables a device specific interrupt in the NVIC interrupt controller.
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval None
*/
void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Disable interrupt */
NVIC_DisableIRQ(IRQn);
}
/**
* @brief Initiates a system reset request to reset the MCU.
* @retval None
*/
void HAL_NVIC_SystemReset(void)
{
/* System Reset */
NVIC_SystemReset();
}
/**
* @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
* Counter is in free running mode to generate periodic interrupts.
* @param TicksNumb Specifies the ticks Number of ticks between two interrupts.
* @retval status: - 0 Function succeeded.
* - 1 Function failed.
*/
uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
{
return SysTick_Config(TicksNumb);
}
/**
* @}
*/
/** @defgroup CORTEX_Exported_Functions_Group2 Peripheral Control functions
* @brief Cortex control functions
*
@verbatim
==============================================================================
##### Peripheral Control functions #####
==============================================================================
[..]
This subsection provides a set of functions allowing to control the CORTEX
(NVIC, SYSTICK, MPU) functionalities.
@endverbatim
* @{
*/
#if (__MPU_PRESENT == 1)
/**
* @brief Disables the MPU
* @retval None
*/
void HAL_MPU_Disable(void)
{
/* Make sure outstanding transfers are done */
__DMB();
/* Disable fault exceptions */
SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
/* Disable the MPU and clear the control register*/
MPU->CTRL = 0;
}
/**
* @brief Enables the MPU
* @param MPU_Control Specifies the control mode of the MPU during hard fault,
* NMI, FAULTMASK and privileged access to the default memory
* This parameter can be one of the following values:
* @arg MPU_HFNMI_PRIVDEF_NONE
* @arg MPU_HARDFAULT_NMI
* @arg MPU_PRIVILEGED_DEFAULT
* @arg MPU_HFNMI_PRIVDEF
* @retval None
*/
void HAL_MPU_Enable(uint32_t MPU_Control)
{
/* Enable the MPU */
MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
/* Enable fault exceptions */
SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
/* Ensure MPU setting take effects */
__DSB();
__ISB();
}
/**
* @brief Initializes and configures the Region and the memory to be protected.
* @param MPU_Init Pointer to a MPU_Region_InitTypeDef structure that contains
* the initialization and configuration information.
* @retval None
*/
void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init)
{
/* Check the parameters */
assert_param(IS_MPU_REGION_NUMBER(MPU_Init->Number));
assert_param(IS_MPU_REGION_ENABLE(MPU_Init->Enable));
/* Set the Region number */
MPU->RNR = MPU_Init->Number;
if ((MPU_Init->Enable) != RESET)
{
/* Check the parameters */
assert_param(IS_MPU_INSTRUCTION_ACCESS(MPU_Init->DisableExec));
assert_param(IS_MPU_REGION_PERMISSION_ATTRIBUTE(MPU_Init->AccessPermission));
assert_param(IS_MPU_TEX_LEVEL(MPU_Init->TypeExtField));
assert_param(IS_MPU_ACCESS_SHAREABLE(MPU_Init->IsShareable));
assert_param(IS_MPU_ACCESS_CACHEABLE(MPU_Init->IsCacheable));
assert_param(IS_MPU_ACCESS_BUFFERABLE(MPU_Init->IsBufferable));
assert_param(IS_MPU_SUB_REGION_DISABLE(MPU_Init->SubRegionDisable));
assert_param(IS_MPU_REGION_SIZE(MPU_Init->Size));
MPU->RBAR = MPU_Init->BaseAddress;
MPU->RASR = ((uint32_t)MPU_Init->DisableExec << MPU_RASR_XN_Pos) |
((uint32_t)MPU_Init->AccessPermission << MPU_RASR_AP_Pos) |
((uint32_t)MPU_Init->TypeExtField << MPU_RASR_TEX_Pos) |
((uint32_t)MPU_Init->IsShareable << MPU_RASR_S_Pos) |
((uint32_t)MPU_Init->IsCacheable << MPU_RASR_C_Pos) |
((uint32_t)MPU_Init->IsBufferable << MPU_RASR_B_Pos) |
((uint32_t)MPU_Init->SubRegionDisable << MPU_RASR_SRD_Pos) |
((uint32_t)MPU_Init->Size << MPU_RASR_SIZE_Pos) |
((uint32_t)MPU_Init->Enable << MPU_RASR_ENABLE_Pos);
}
else
{
MPU->RBAR = 0x00;
MPU->RASR = 0x00;
}
}
#endif /* __MPU_PRESENT */
/**
* @brief Gets the priority grouping field from the NVIC Interrupt Controller.
* @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field)
*/
uint32_t HAL_NVIC_GetPriorityGrouping(void)
{
/* Get the PRIGROUP[10:8] field value */
return NVIC_GetPriorityGrouping();
}
/**
* @brief Gets the priority of an interrupt.
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @param PriorityGroup the priority grouping bits length.
* This parameter can be one of the following values:
* @arg NVIC_PRIORITYGROUP_0: 0 bits for preemption priority
* 4 bits for subpriority
* @arg NVIC_PRIORITYGROUP_1: 1 bits for preemption priority
* 3 bits for subpriority
* @arg NVIC_PRIORITYGROUP_2: 2 bits for preemption priority
* 2 bits for subpriority
* @arg NVIC_PRIORITYGROUP_3: 3 bits for preemption priority
* 1 bits for subpriority
* @arg NVIC_PRIORITYGROUP_4: 4 bits for preemption priority
* 0 bits for subpriority
* @param pPreemptPriority Pointer on the Preemptive priority value (starting from 0).
* @param pSubPriority Pointer on the Subpriority value (starting from 0).
* @retval None
*/
void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t *pPreemptPriority, uint32_t *pSubPriority)
{
/* Check the parameters */
assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
/* Get priority for Cortex-M system or device specific interrupts */
NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority);
}
/**
* @brief Sets Pending bit of an external interrupt.
* @param IRQn External interrupt number
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval None
*/
void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Set interrupt pending */
NVIC_SetPendingIRQ(IRQn);
}
/**
* @brief Gets Pending Interrupt (reads the pending register in the NVIC
* and returns the pending bit for the specified interrupt).
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval status: - 0 Interrupt status is not pending.
* - 1 Interrupt status is pending.
*/
uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Return 1 if pending else 0 */
return NVIC_GetPendingIRQ(IRQn);
}
/**
* @brief Clears the pending bit of an external interrupt.
* @param IRQn External interrupt number.
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval None
*/
void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Clear pending interrupt */
NVIC_ClearPendingIRQ(IRQn);
}
/**
* @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit).
* @param IRQn External interrupt number
* This parameter can be an enumerator of IRQn_Type enumeration
* (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f7xxxx.h))
* @retval status: - 0 Interrupt status is not pending.
* - 1 Interrupt status is pending.
*/
uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn)
{
/* Check the parameters */
assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
/* Return 1 if active else 0 */
return NVIC_GetActive(IRQn);
}
/**
* @brief Configures the SysTick clock source.
* @param CLKSource specifies the SysTick clock source.
* This parameter can be one of the following values:
* @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
* @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
* @retval None
*/
void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
{
/* Check the parameters */
assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource));
if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
{
SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
}
else
{
SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
}
}
/**
* @brief This function handles SYSTICK interrupt request.
* @retval None
*/
void HAL_SYSTICK_IRQHandler(void)
{
HAL_SYSTICK_Callback();
}
/**
* @brief SYSTICK callback.
* @retval None
*/
__weak void HAL_SYSTICK_Callback(void)
{
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_SYSTICK_Callback could be implemented in the user file
*/
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_CORTEX_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32f7xx_hal_dma_ex.c
* @author MCD Application Team
* @brief DMA Extension HAL module driver
* This file provides firmware functions to manage the following
* functionalities of the DMA Extension peripheral:
* + Extended features functions
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The DMA Extension HAL driver can be used as follows:
(+) Start a multi buffer transfer using the HAL_DMA_MultiBufferStart() function
for polling mode or HAL_DMA_MultiBufferStart_IT() for interrupt mode.
-@- In Memory-to-Memory transfer mode, Multi (Double) Buffer mode is not allowed.
-@- When Multi (Double) Buffer mode is enabled, the transfer is circular by default.
-@- In Multi (Double) buffer mode, it is possible to update the base address for
the AHB memory port on the fly (DMA_SxM0AR or DMA_SxM1AR) when the stream is enabled.
@endverbatim
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup DMAEx DMAEx
* @brief DMA Extended HAL module driver
* @{
*/
#ifdef HAL_DMA_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private Constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @addtogroup DMAEx_Private_Functions
* @{
*/
static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength);
/**
* @}
*/
/* Exported functions ---------------------------------------------------------*/
/** @addtogroup DMAEx_Exported_Functions
* @{
*/
/** @addtogroup DMAEx_Exported_Functions_Group1
*
@verbatim
===============================================================================
##### Extended features functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Configure the source, destination address and data length and
Start MultiBuffer DMA transfer
(+) Configure the source, destination address and data length and
Start MultiBuffer DMA transfer with interrupt
(+) Change on the fly the memory0 or memory1 address.
@endverbatim
* @{
*/
/**
* @brief Starts the multi_buffer DMA Transfer.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Stream.
* @param SrcAddress The source memory Buffer address
* @param DstAddress The destination memory Buffer address
* @param SecondMemAddress The second memory Buffer address in case of multi buffer Transfer
* @param DataLength The length of data to be transferred from source to destination
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_DMA_BUFFER_SIZE(DataLength));
/* Memory-to-memory transfer not supported in double buffering mode */
if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY)
{
hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED;
status = HAL_ERROR;
}
else
{
/* Process Locked */
__HAL_LOCK(hdma);
if(HAL_DMA_STATE_READY == hdma->State)
{
/* Change DMA peripheral state */
hdma->State = HAL_DMA_STATE_BUSY;
/* Enable the double buffer mode */
hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM;
/* Configure DMA Stream destination address */
hdma->Instance->M1AR = SecondMemAddress;
/* Configure the source, destination address and the data length */
DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength);
/* Enable the peripheral */
__HAL_DMA_ENABLE(hdma);
}
else
{
/* Return error status */
status = HAL_BUSY;
}
}
return status;
}
/**
* @brief Starts the multi_buffer DMA Transfer with interrupt enabled.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Stream.
* @param SrcAddress The source memory Buffer address
* @param DstAddress The destination memory Buffer address
* @param SecondMemAddress The second memory Buffer address in case of multi buffer Transfer
* @param DataLength The length of data to be transferred from source to destination
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_DMA_BUFFER_SIZE(DataLength));
/* Memory-to-memory transfer not supported in double buffering mode */
if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY)
{
hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hdma);
if(HAL_DMA_STATE_READY == hdma->State)
{
/* Change DMA peripheral state */
hdma->State = HAL_DMA_STATE_BUSY;
/* Initialize the error code */
hdma->ErrorCode = HAL_DMA_ERROR_NONE;
/* Enable the Double buffer mode */
hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM;
/* Configure DMA Stream destination address */
hdma->Instance->M1AR = SecondMemAddress;
/* Configure the source, destination address and the data length */
DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength);
/* Clear all flags */
__HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma));
__HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma));
/* Enable Common interrupts*/
hdma->Instance->CR |= DMA_IT_TC | DMA_IT_TE | DMA_IT_DME;
hdma->Instance->FCR |= DMA_IT_FE;
if((hdma->XferHalfCpltCallback != NULL) || (hdma->XferM1HalfCpltCallback != NULL))
{
hdma->Instance->CR |= DMA_IT_HT;
}
/* Enable the peripheral */
__HAL_DMA_ENABLE(hdma);
}
else
{
/* Process unlocked */
__HAL_UNLOCK(hdma);
/* Return error status */
status = HAL_BUSY;
}
return status;
}
/**
* @brief Change the memory0 or memory1 address on the fly.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Stream.
* @param Address The new address
* @param memory the memory to be changed, This parameter can be one of
* the following values:
* MEMORY0 /
* MEMORY1
* @note The MEMORY0 address can be changed only when the current transfer use
* MEMORY1 and the MEMORY1 address can be changed only when the current
* transfer use MEMORY0.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DMAEx_ChangeMemory(DMA_HandleTypeDef *hdma, uint32_t Address, HAL_DMA_MemoryTypeDef memory)
{
if(memory == MEMORY0)
{
/* change the memory0 address */
hdma->Instance->M0AR = Address;
}
else
{
/* change the memory1 address */
hdma->Instance->M1AR = Address;
}
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup DMAEx_Private_Functions
* @{
*/
/**
* @brief Set the DMA Transfer parameter.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA Stream.
* @param SrcAddress The source memory Buffer address
* @param DstAddress The destination memory Buffer address
* @param DataLength The length of data to be transferred from source to destination
* @retval HAL status
*/
static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
{
/* Configure DMA Stream data length */
hdma->Instance->NDTR = DataLength;
/* Peripheral to Memory */
if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH)
{
/* Configure DMA Stream destination address */
hdma->Instance->PAR = DstAddress;
/* Configure DMA Stream source address */
hdma->Instance->M0AR = SrcAddress;
}
/* Memory to Peripheral */
else
{
/* Configure DMA Stream source address */
hdma->Instance->PAR = SrcAddress;
/* Configure DMA Stream destination address */
hdma->Instance->M0AR = DstAddress;
}
}
/**
* @}
*/
#endif /* HAL_DMA_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32F7xx_hal_exti.c
* @author MCD Application Team
* @brief EXTI HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Extended Interrupts and events controller (EXTI) peripheral:
* + Initialization and de-initialization functions
* + IO operation functions
*
******************************************************************************
* @attention
*
* Copyright (c) 2018 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
==============================================================================
##### EXTI Peripheral features #####
==============================================================================
[..]
(+) Each Exti line can be configured within this driver.
(+) Exti line can be configured in 3 different modes
(++) Interrupt
(++) Event
(++) Both of them
(+) Configurable Exti lines can be configured with 3 different triggers
(++) Rising
(++) Falling
(++) Both of them
(+) When set in interrupt mode, configurable Exti lines have two different
interrupts pending registers which allow to distinguish which transition
occurs:
(++) Rising edge pending interrupt
(++) Falling
(+) Exti lines 0 to 15 are linked to gpio pin number 0 to 15. Gpio port can
be selected through multiplexer.
##### How to use this driver #####
==============================================================================
[..]
(#) Configure the EXTI line using HAL_EXTI_SetConfigLine().
(++) Choose the interrupt line number by setting "Line" member from
EXTI_ConfigTypeDef structure.
(++) Configure the interrupt and/or event mode using "Mode" member from
EXTI_ConfigTypeDef structure.
(++) For configurable lines, configure rising and/or falling trigger
"Trigger" member from EXTI_ConfigTypeDef structure.
(++) For Exti lines linked to gpio, choose gpio port using "GPIOSel"
member from GPIO_InitTypeDef structure.
(#) Get current Exti configuration of a dedicated line using
HAL_EXTI_GetConfigLine().
(++) Provide exiting handle as parameter.
(++) Provide pointer on EXTI_ConfigTypeDef structure as second parameter.
(#) Clear Exti configuration of a dedicated line using HAL_EXTI_GetConfigLine().
(++) Provide exiting handle as parameter.
(#) Register callback to treat Exti interrupts using HAL_EXTI_RegisterCallback().
(++) Provide exiting handle as first parameter.
(++) Provide which callback will be registered using one value from
EXTI_CallbackIDTypeDef.
(++) Provide callback function pointer.
(#) Get interrupt pending bit using HAL_EXTI_GetPending().
(#) Clear interrupt pending bit using HAL_EXTI_GetPending().
(#) Generate software interrupt using HAL_EXTI_GenerateSWI().
@endverbatim
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @addtogroup EXTI
* @{
*/
/** MISRA C:2012 deviation rule has been granted for following rule:
* Rule-18.1_b - Medium: Array `EXTICR' 1st subscript interval [0,7] may be out
* of bounds [0,3] in following API :
* HAL_EXTI_SetConfigLine
* HAL_EXTI_GetConfigLine
* HAL_EXTI_ClearConfigLine
*/
#ifdef HAL_EXTI_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/** @defgroup EXTI_Private_Constants EXTI Private Constants
* @{
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup EXTI_Exported_Functions
* @{
*/
/** @addtogroup EXTI_Exported_Functions_Group1
* @brief Configuration functions
*
@verbatim
===============================================================================
##### Configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Set configuration of a dedicated Exti line.
* @param hexti Exti handle.
* @param pExtiConfig Pointer on EXTI configuration to be set.
* @retval HAL Status.
*/
HAL_StatusTypeDef HAL_EXTI_SetConfigLine(EXTI_HandleTypeDef *hexti, EXTI_ConfigTypeDef *pExtiConfig)
{
uint32_t regval;
uint32_t linepos;
uint32_t maskline;
/* Check null pointer */
if ((hexti == NULL) || (pExtiConfig == NULL))
{
return HAL_ERROR;
}
/* Check parameters */
assert_param(IS_EXTI_LINE(pExtiConfig->Line));
assert_param(IS_EXTI_MODE(pExtiConfig->Mode));
/* Assign line number to handle */
hexti->Line = pExtiConfig->Line;
/* Compute line mask */
linepos = (pExtiConfig->Line & EXTI_PIN_MASK);
maskline = (1uL << linepos);
/* Configure triggers for configurable lines */
if ((pExtiConfig->Line & EXTI_CONFIG) != 0x00u)
{
assert_param(IS_EXTI_TRIGGER(pExtiConfig->Trigger));
/* Configure rising trigger */
/* Mask or set line */
if ((pExtiConfig->Trigger & EXTI_TRIGGER_RISING) != 0x00u)
{
EXTI->RTSR |= maskline;
}
else
{
EXTI->RTSR &= ~maskline;
}
/* Configure falling trigger */
/* Mask or set line */
if ((pExtiConfig->Trigger & EXTI_TRIGGER_FALLING) != 0x00u)
{
EXTI->FTSR |= maskline;
}
else
{
EXTI->FTSR &= ~maskline;
}
/* Configure gpio port selection in case of gpio exti line */
if ((pExtiConfig->Line & EXTI_GPIO) == EXTI_GPIO)
{
assert_param(IS_EXTI_GPIO_PORT(pExtiConfig->GPIOSel));
assert_param(IS_EXTI_GPIO_PIN(linepos));
regval = SYSCFG->EXTICR[linepos >> 2u];
regval &= ~(SYSCFG_EXTICR1_EXTI0 << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
regval |= (pExtiConfig->GPIOSel << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
SYSCFG->EXTICR[linepos >> 2u] = regval;
}
}
/* Configure interrupt mode : read current mode */
/* Mask or set line */
if ((pExtiConfig->Mode & EXTI_MODE_INTERRUPT) != 0x00u)
{
EXTI->IMR |= maskline;
}
else
{
EXTI->IMR &= ~maskline;
}
/* Configure event mode : read current mode */
/* Mask or set line */
if ((pExtiConfig->Mode & EXTI_MODE_EVENT) != 0x00u)
{
EXTI->EMR |= maskline;
}
else
{
EXTI->EMR &= ~maskline;
}
return HAL_OK;
}
/**
* @brief Get configuration of a dedicated Exti line.
* @param hexti Exti handle.
* @param pExtiConfig Pointer on structure to store Exti configuration.
* @retval HAL Status.
*/
HAL_StatusTypeDef HAL_EXTI_GetConfigLine(EXTI_HandleTypeDef *hexti, EXTI_ConfigTypeDef *pExtiConfig)
{
uint32_t regval;
uint32_t linepos;
uint32_t maskline;
/* Check null pointer */
if ((hexti == NULL) || (pExtiConfig == NULL))
{
return HAL_ERROR;
}
/* Check the parameter */
assert_param(IS_EXTI_LINE(hexti->Line));
/* Store handle line number to configuration structure */
pExtiConfig->Line = hexti->Line;
/* Compute line mask */
linepos = (pExtiConfig->Line & EXTI_PIN_MASK);
maskline = (1uL << linepos);
/* 1] Get core mode : interrupt */
/* Check if selected line is enable */
if ((EXTI->IMR & maskline) != 0x00u)
{
pExtiConfig->Mode = EXTI_MODE_INTERRUPT;
}
else
{
pExtiConfig->Mode = EXTI_MODE_NONE;
}
/* Get event mode */
/* Check if selected line is enable */
if ((EXTI->EMR & maskline) != 0x00u)
{
pExtiConfig->Mode |= EXTI_MODE_EVENT;
}
/* Get default Trigger and GPIOSel configuration */
pExtiConfig->Trigger = EXTI_TRIGGER_NONE;
pExtiConfig->GPIOSel = 0x00u;
/* 2] Get trigger for configurable lines : rising */
if ((pExtiConfig->Line & EXTI_CONFIG) != 0x00u)
{
/* Check if configuration of selected line is enable */
if ((EXTI->RTSR & maskline) != 0x00u)
{
pExtiConfig->Trigger = EXTI_TRIGGER_RISING;
}
/* Get falling configuration */
/* Check if configuration of selected line is enable */
if ((EXTI->FTSR & maskline) != 0x00u)
{
pExtiConfig->Trigger |= EXTI_TRIGGER_FALLING;
}
/* Get Gpio port selection for gpio lines */
if ((pExtiConfig->Line & EXTI_GPIO) == EXTI_GPIO)
{
assert_param(IS_EXTI_GPIO_PIN(linepos));
regval = SYSCFG->EXTICR[linepos >> 2u];
pExtiConfig->GPIOSel = ((regval << (SYSCFG_EXTICR1_EXTI1_Pos * (3uL - (linepos & 0x03u)))) >> 24);
}
}
return HAL_OK;
}
/**
* @brief Clear whole configuration of a dedicated Exti line.
* @param hexti Exti handle.
* @retval HAL Status.
*/
HAL_StatusTypeDef HAL_EXTI_ClearConfigLine(EXTI_HandleTypeDef *hexti)
{
uint32_t regval;
uint32_t linepos;
uint32_t maskline;
/* Check null pointer */
if (hexti == NULL)
{
return HAL_ERROR;
}
/* Check the parameter */
assert_param(IS_EXTI_LINE(hexti->Line));
/* compute line mask */
linepos = (hexti->Line & EXTI_PIN_MASK);
maskline = (1uL << linepos);
/* 1] Clear interrupt mode */
EXTI->IMR = (EXTI->IMR & ~maskline);
/* 2] Clear event mode */
EXTI->EMR = (EXTI->EMR & ~maskline);
/* 3] Clear triggers in case of configurable lines */
if ((hexti->Line & EXTI_CONFIG) != 0x00u)
{
EXTI->RTSR = (EXTI->RTSR & ~maskline);
EXTI->FTSR = (EXTI->FTSR & ~maskline);
/* Get Gpio port selection for gpio lines */
if ((hexti->Line & EXTI_GPIO) == EXTI_GPIO)
{
assert_param(IS_EXTI_GPIO_PIN(linepos));
regval = SYSCFG->EXTICR[linepos >> 2u];
regval &= ~(SYSCFG_EXTICR1_EXTI0 << (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u)));
SYSCFG->EXTICR[linepos >> 2u] = regval;
}
}
return HAL_OK;
}
/**
* @brief Register callback for a dedicated Exti line.
* @param hexti Exti handle.
* @param CallbackID User callback identifier.
* This parameter can be one of @arg @ref EXTI_CallbackIDTypeDef values.
* @param pPendingCbfn function pointer to be stored as callback.
* @retval HAL Status.
*/
HAL_StatusTypeDef HAL_EXTI_RegisterCallback(EXTI_HandleTypeDef *hexti, EXTI_CallbackIDTypeDef CallbackID, void (*pPendingCbfn)(void))
{
HAL_StatusTypeDef status = HAL_OK;
switch (CallbackID)
{
case HAL_EXTI_COMMON_CB_ID:
hexti->PendingCallback = pPendingCbfn;
break;
default:
status = HAL_ERROR;
break;
}
return status;
}
/**
* @brief Store line number as handle private field.
* @param hexti Exti handle.
* @param ExtiLine Exti line number.
* This parameter can be from 0 to @ref EXTI_LINE_NB.
* @retval HAL Status.
*/
HAL_StatusTypeDef HAL_EXTI_GetHandle(EXTI_HandleTypeDef *hexti, uint32_t ExtiLine)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(ExtiLine));
/* Check null pointer */
if (hexti == NULL)
{
return HAL_ERROR;
}
else
{
/* Store line number as handle private field */
hexti->Line = ExtiLine;
return HAL_OK;
}
}
/**
* @}
*/
/** @addtogroup EXTI_Exported_Functions_Group2
* @brief EXTI IO functions.
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Handle EXTI interrupt request.
* @param hexti Exti handle.
* @retval none.
*/
void HAL_EXTI_IRQHandler(EXTI_HandleTypeDef *hexti)
{
uint32_t regval;
uint32_t maskline;
/* Compute line mask */
maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
/* Get pending bit */
regval = (EXTI->PR & maskline);
if (regval != 0x00u)
{
/* Clear pending bit */
EXTI->PR = maskline;
/* Call callback */
if (hexti->PendingCallback != NULL)
{
hexti->PendingCallback();
}
}
}
/**
* @brief Get interrupt pending bit of a dedicated line.
* @param hexti Exti handle.
* @param Edge Specify which pending edge as to be checked.
* This parameter can be one of the following values:
* @arg @ref EXTI_TRIGGER_RISING_FALLING
* This parameter is kept for compatibility with other series.
* @retval 1 if interrupt is pending else 0.
*/
uint32_t HAL_EXTI_GetPending(EXTI_HandleTypeDef *hexti, uint32_t Edge)
{
uint32_t regval;
uint32_t linepos;
uint32_t maskline;
/* Check parameters */
assert_param(IS_EXTI_LINE(hexti->Line));
assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
assert_param(IS_EXTI_PENDING_EDGE(Edge));
/* Compute line mask */
linepos = (hexti->Line & EXTI_PIN_MASK);
maskline = (1uL << linepos);
/* return 1 if bit is set else 0 */
regval = ((EXTI->PR & maskline) >> linepos);
return regval;
}
/**
* @brief Clear interrupt pending bit of a dedicated line.
* @param hexti Exti handle.
* @param Edge Specify which pending edge as to be clear.
* This parameter can be one of the following values:
* @arg @ref EXTI_TRIGGER_RISING_FALLING
* This parameter is kept for compatibility with other series.
* @retval None.
*/
void HAL_EXTI_ClearPending(EXTI_HandleTypeDef *hexti, uint32_t Edge)
{
uint32_t maskline;
/* Check parameters */
assert_param(IS_EXTI_LINE(hexti->Line));
assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
assert_param(IS_EXTI_PENDING_EDGE(Edge));
/* Compute line mask */
maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
/* Clear Pending bit */
EXTI->PR = maskline;
}
/**
* @brief Generate a software interrupt for a dedicated line.
* @param hexti Exti handle.
* @retval None.
*/
void HAL_EXTI_GenerateSWI(EXTI_HandleTypeDef *hexti)
{
uint32_t maskline;
/* Check parameters */
assert_param(IS_EXTI_LINE(hexti->Line));
assert_param(IS_EXTI_CONFIG_LINE(hexti->Line));
/* Compute line mask */
maskline = (1uL << (hexti->Line & EXTI_PIN_MASK));
/* Generate Software interrupt */
EXTI->SWIER = maskline;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_EXTI_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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@ -0,0 +1,819 @@
/**
******************************************************************************
* @file stm32f7xx_hal_flash.c
* @author MCD Application Team
* @brief FLASH HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the internal FLASH memory:
* + Program operations functions
* + Memory Control functions
* + Peripheral Errors functions
*
@verbatim
==============================================================================
##### FLASH peripheral features #####
==============================================================================
[..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses
to the Flash memory. It implements the erase and program Flash memory operations
and the read and write protection mechanisms.
[..] The Flash memory interface accelerates code execution with a system of instruction
prefetch and cache lines.
[..] The FLASH main features are:
(+) Flash memory read operations
(+) Flash memory program/erase operations
(+) Read / write protections
(+) Prefetch on I-Code
(+) 64 cache lines of 128 bits on I-Code
(+) 8 cache lines of 128 bits on D-Code
##### How to use this driver #####
==============================================================================
[..]
This driver provides functions and macros to configure and program the FLASH
memory of all STM32F7xx devices.
(#) FLASH Memory IO Programming functions:
(++) Lock and Unlock the FLASH interface using HAL_FLASH_Unlock() and
HAL_FLASH_Lock() functions
(++) Program functions: byte, half word, word and double word
(++) There Two modes of programming :
(+++) Polling mode using HAL_FLASH_Program() function
(+++) Interrupt mode using HAL_FLASH_Program_IT() function
(#) Interrupts and flags management functions :
(++) Handle FLASH interrupts by calling HAL_FLASH_IRQHandler()
(++) Wait for last FLASH operation according to its status
(++) Get error flag status by calling HAL_SetErrorCode()
[..]
In addition to these functions, this driver includes a set of macros allowing
to handle the following operations:
(+) Set the latency
(+) Enable/Disable the prefetch buffer
(+) Enable/Disable the Instruction cache and the Data cache
(+) Reset the Instruction cache and the Data cache
(+) Enable/Disable the FLASH interrupts
(+) Monitor the FLASH flags status
[..]
(@) For any Flash memory program operation (erase or program), the CPU clock frequency
(HCLK) must be at least 1MHz.
(@) The contents of the Flash memory are not guaranteed if a device reset occurs during
a Flash memory operation.
(@) Any attempt to read the Flash memory while it is being written or erased, causes the
bus to stall. Read operations are processed correctly once the program operation has
completed. This means that code or data fetches cannot be performed while a write/erase
operation is ongoing.
@endverbatim
******************************************************************************
* @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.
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup FLASH FLASH
* @brief FLASH HAL module driver
* @{
*/
#ifdef HAL_FLASH_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup FLASH_Private_Constants
* @{
*/
#define SECTOR_MASK ((uint32_t)0xFFFFFF07U)
#define FLASH_TIMEOUT_VALUE ((uint32_t)50000U)/* 50 s */
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @addtogroup FLASH_Private_Variables
* @{
*/
/* Variable used for Erase sectors under interruption */
FLASH_ProcessTypeDef pFlash;
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @addtogroup FLASH_Private_Functions
* @{
*/
/* Program operations */
static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data);
static void FLASH_Program_Word(uint32_t Address, uint32_t Data);
static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data);
static void FLASH_Program_Byte(uint32_t Address, uint8_t Data);
static void FLASH_SetErrorCode(void);
HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup FLASH_Exported_Functions FLASH Exported Functions
* @{
*/
/** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions
* @brief Programming operation functions
*
@verbatim
===============================================================================
##### Programming operation functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to manage the FLASH
program operations.
@endverbatim
* @{
*/
/**
* @brief Program byte, halfword, word or double word at a specified address
* @param TypeProgram Indicate the way to program at a specified address.
* This parameter can be a value of @ref FLASH_Type_Program
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed
*
* @retval HAL_StatusTypeDef HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
{
HAL_StatusTypeDef status = HAL_ERROR;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
switch(TypeProgram)
{
case FLASH_TYPEPROGRAM_BYTE :
{
/*Program byte (8-bit) at a specified address.*/
FLASH_Program_Byte(Address, (uint8_t) Data);
break;
}
case FLASH_TYPEPROGRAM_HALFWORD :
{
/*Program halfword (16-bit) at a specified address.*/
FLASH_Program_HalfWord(Address, (uint16_t) Data);
break;
}
case FLASH_TYPEPROGRAM_WORD :
{
/*Program word (32-bit) at a specified address.*/
FLASH_Program_Word(Address, (uint32_t) Data);
break;
}
case FLASH_TYPEPROGRAM_DOUBLEWORD :
{
/*Program double word (64-bit) at a specified address.*/
FLASH_Program_DoubleWord(Address, Data);
break;
}
default :
break;
}
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
/* If the program operation is completed, disable the PG Bit */
FLASH->CR &= (~FLASH_CR_PG);
}
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
return status;
}
/**
* @brief Program byte, halfword, word or double word at a specified address with interrupt enabled.
* @param TypeProgram Indicate the way to program at a specified address.
* This parameter can be a value of @ref FLASH_Type_Program
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed
*
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
/* Enable End of FLASH Operation interrupt */
__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP);
/* Enable Error source interrupt */
__HAL_FLASH_ENABLE_IT(FLASH_IT_ERR);
/* Clear pending flags (if any) */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |\
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR| FLASH_FLAG_ERSERR);
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAM;
pFlash.Address = Address;
switch(TypeProgram)
{
case FLASH_TYPEPROGRAM_BYTE :
{
/*Program byte (8-bit) at a specified address.*/
FLASH_Program_Byte(Address, (uint8_t) Data);
break;
}
case FLASH_TYPEPROGRAM_HALFWORD :
{
/*Program halfword (16-bit) at a specified address.*/
FLASH_Program_HalfWord(Address, (uint16_t) Data);
break;
}
case FLASH_TYPEPROGRAM_WORD :
{
/*Program word (32-bit) at a specified address.*/
FLASH_Program_Word(Address, (uint32_t) Data);
break;
}
case FLASH_TYPEPROGRAM_DOUBLEWORD :
{
/*Program double word (64-bit) at a specified address.*/
FLASH_Program_DoubleWord(Address, Data);
break;
}
default :
break;
}
return status;
}
/**
* @brief This function handles FLASH interrupt request.
* @retval None
*/
void HAL_FLASH_IRQHandler(void)
{
uint32_t temp = 0;
/* If the program operation is completed, disable the PG Bit */
FLASH->CR &= (~FLASH_CR_PG);
/* If the erase operation is completed, disable the SER Bit */
FLASH->CR &= (~FLASH_CR_SER);
FLASH->CR &= SECTOR_MASK;
/* if the erase operation is completed, disable the MER Bit */
FLASH->CR &= (~FLASH_MER_BIT);
/* Check FLASH End of Operation flag */
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP) != RESET)
{
/* Clear FLASH End of Operation pending bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
switch (pFlash.ProcedureOnGoing)
{
case FLASH_PROC_SECTERASE :
{
/* Nb of sector to erased can be decreased */
pFlash.NbSectorsToErase--;
/* Check if there are still sectors to erase */
if(pFlash.NbSectorsToErase != 0)
{
temp = pFlash.Sector;
/* Indicate user which sector has been erased */
HAL_FLASH_EndOfOperationCallback(temp);
/* Increment sector number */
temp = ++pFlash.Sector;
FLASH_Erase_Sector(temp, pFlash.VoltageForErase);
}
else
{
/* No more sectors to Erase, user callback can be called.*/
/* Reset Sector and stop Erase sectors procedure */
pFlash.Sector = temp = 0xFFFFFFFFU;
/* FLASH EOP interrupt user callback */
HAL_FLASH_EndOfOperationCallback(temp);
/* Sector Erase procedure is completed */
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
break;
}
case FLASH_PROC_MASSERASE :
{
/* MassErase ended. Return the selected bank : in this product we don't have Banks */
/* FLASH EOP interrupt user callback */
HAL_FLASH_EndOfOperationCallback(0);
/* MAss Erase procedure is completed */
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
break;
}
case FLASH_PROC_PROGRAM :
{
/*Program ended. Return the selected address*/
/* FLASH EOP interrupt user callback */
HAL_FLASH_EndOfOperationCallback(pFlash.Address);
/* Programming procedure is completed */
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
break;
}
default :
break;
}
}
/* Check FLASH operation error flags */
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ALL_ERRORS) != RESET)
{
switch (pFlash.ProcedureOnGoing)
{
case FLASH_PROC_SECTERASE :
{
/* return the faulty sector */
temp = pFlash.Sector;
pFlash.Sector = 0xFFFFFFFFU;
break;
}
case FLASH_PROC_MASSERASE :
{
/* No return in case of Mass Erase */
temp = 0;
break;
}
case FLASH_PROC_PROGRAM :
{
/*return the faulty address*/
temp = pFlash.Address;
break;
}
default :
break;
}
/*Save the Error code*/
FLASH_SetErrorCode();
/* FLASH error interrupt user callback */
HAL_FLASH_OperationErrorCallback(temp);
/*Stop the procedure ongoing */
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE)
{
/* Disable End of FLASH Operation interrupt */
__HAL_FLASH_DISABLE_IT(FLASH_IT_EOP);
/* Disable Error source interrupt */
__HAL_FLASH_DISABLE_IT(FLASH_IT_ERR);
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
}
}
/**
* @brief FLASH end of operation interrupt callback
* @param ReturnValue The value saved in this parameter depends on the ongoing procedure
* - Sectors Erase: Sector which has been erased (if 0xFFFFFFFF, it means that
* all the selected sectors have been erased)
* - Program : Address which was selected for data program
* - Mass Erase : No return value expected
* @retval None
*/
__weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(ReturnValue);
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_FLASH_EndOfOperationCallback could be implemented in the user file
*/
}
/**
* @brief FLASH operation error interrupt callback
* @param ReturnValue The value saved in this parameter depends on the ongoing procedure
* - Sectors Erase: Sector which has been erased (if 0xFFFFFFFF, it means that
* all the selected sectors have been erased)
* - Program : Address which was selected for data program
* - Mass Erase : No return value expected
* @retval None
*/
__weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(ReturnValue);
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_FLASH_OperationErrorCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions
* @brief management functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to control the FLASH
memory operations.
@endverbatim
* @{
*/
/**
* @brief Unlock the FLASH control register access
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Unlock(void)
{
HAL_StatusTypeDef status = HAL_OK;
if(READ_BIT(FLASH->CR, FLASH_CR_LOCK) != RESET)
{
/* Authorize the FLASH Registers access */
WRITE_REG(FLASH->KEYR, FLASH_KEY1);
WRITE_REG(FLASH->KEYR, FLASH_KEY2);
/* Verify Flash is unlocked */
if(READ_BIT(FLASH->CR, FLASH_CR_LOCK) != RESET)
{
status = HAL_ERROR;
}
}
return status;
}
/**
* @brief Locks the FLASH control register access
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Lock(void)
{
/* Set the LOCK Bit to lock the FLASH Registers access */
FLASH->CR |= FLASH_CR_LOCK;
return HAL_OK;
}
/**
* @brief Unlock the FLASH Option Control Registers access.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
{
if((FLASH->OPTCR & FLASH_OPTCR_OPTLOCK) != RESET)
{
/* Authorizes the Option Byte register programming */
FLASH->OPTKEYR = FLASH_OPT_KEY1;
FLASH->OPTKEYR = FLASH_OPT_KEY2;
}
else
{
return HAL_ERROR;
}
return HAL_OK;
}
/**
* @brief Lock the FLASH Option Control Registers access.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Lock(void)
{
/* Set the OPTLOCK Bit to lock the FLASH Option Byte Registers access */
FLASH->OPTCR |= FLASH_OPTCR_OPTLOCK;
return HAL_OK;
}
/**
* @brief Launch the option byte loading.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Launch(void)
{
/* Set the OPTSTRT bit in OPTCR register */
FLASH->OPTCR |= FLASH_OPTCR_OPTSTRT;
/* Wait for last operation to be completed */
return(FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE));
}
/**
* @}
*/
/** @defgroup FLASH_Exported_Functions_Group3 Peripheral State and Errors functions
* @brief Peripheral Errors functions
*
@verbatim
===============================================================================
##### Peripheral Errors functions #####
===============================================================================
[..]
This subsection permits to get in run-time Errors of the FLASH peripheral.
@endverbatim
* @{
*/
/**
* @brief Get the specific FLASH error flag.
* @retval FLASH_ErrorCode: The returned value can be:
* @arg FLASH_ERROR_ERS: FLASH Erasing Sequence error flag
* @arg FLASH_ERROR_PGP: FLASH Programming Parallelism error flag
* @arg FLASH_ERROR_PGA: FLASH Programming Alignment error flag
* @arg FLASH_ERROR_WRP: FLASH Write protected error flag
* @arg FLASH_ERROR_OPERATION: FLASH operation Error flag
*/
uint32_t HAL_FLASH_GetError(void)
{
return pFlash.ErrorCode;
}
/**
* @}
*/
/**
* @brief Wait for a FLASH operation to complete.
* @param Timeout maximum flash operationtimeout
* @retval HAL Status
*/
HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout)
{
uint32_t tickstart = 0;
/* Clear Error Code */
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
/* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
Even if the FLASH operation fails, the BUSY flag will be reset and an error
flag will be set */
/* Get tick */
tickstart = HAL_GetTick();
while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY) != RESET)
{
if(Timeout != HAL_MAX_DELAY)
{
if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
{
return HAL_TIMEOUT;
}
}
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ALL_ERRORS) != RESET)
{
/*Save the error code*/
FLASH_SetErrorCode();
return HAL_ERROR;
}
/* Check FLASH End of Operation flag */
if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP) != RESET)
{
/* Clear FLASH End of Operation pending bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
}
/* If there is an error flag set */
return HAL_OK;
}
/**
* @brief Program a double word (64-bit) at a specified address.
* @note This function must be used when the device voltage range is from
* 2.7V to 3.6V and an External Vpp is present.
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed.
* @retval None
*/
static void FLASH_Program_DoubleWord(uint32_t Address, uint64_t Data)
{
/* Check the parameters */
assert_param(IS_FLASH_ADDRESS(Address));
/* If the previous operation is completed, proceed to program the new data */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= FLASH_PSIZE_DOUBLE_WORD;
FLASH->CR |= FLASH_CR_PG;
/* Program first word */
*(__IO uint32_t*)Address = (uint32_t)Data;
/* Barrier to ensure programming is performed in 2 steps, in right order
(independently of compiler optimization behavior) */
__ISB();
/* Program second word */
*(__IO uint32_t*)(Address+4) = (uint32_t)(Data >> 32);
/* Data synchronous Barrier (DSB) Just after the write operation
This will force the CPU to respect the sequence of instruction (no optimization).*/
__DSB();
}
/**
* @brief Program word (32-bit) at a specified address.
* @note This function must be used when the device voltage range is from
* 2.7V to 3.3V.
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed.
* @retval None
*/
static void FLASH_Program_Word(uint32_t Address, uint32_t Data)
{
/* Check the parameters */
assert_param(IS_FLASH_ADDRESS(Address));
/* If the previous operation is completed, proceed to program the new data */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= FLASH_PSIZE_WORD;
FLASH->CR |= FLASH_CR_PG;
*(__IO uint32_t*)Address = Data;
/* Data synchronous Barrier (DSB) Just after the write operation
This will force the CPU to respect the sequence of instruction (no optimization).*/
__DSB();
}
/**
* @brief Program a half-word (16-bit) at a specified address.
* @note This function must be used when the device voltage range is from
* 2.1V to 3.6V.
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed.
* @retval None
*/
static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data)
{
/* Check the parameters */
assert_param(IS_FLASH_ADDRESS(Address));
/* If the previous operation is completed, proceed to program the new data */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= FLASH_PSIZE_HALF_WORD;
FLASH->CR |= FLASH_CR_PG;
*(__IO uint16_t*)Address = Data;
/* Data synchronous Barrier (DSB) Just after the write operation
This will force the CPU to respect the sequence of instruction (no optimization).*/
__DSB();
}
/**
* @brief Program byte (8-bit) at a specified address.
* @note This function must be used when the device voltage range is from
* 1.7V to 3.6V.
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param Address specifies the address to be programmed.
* @param Data specifies the data to be programmed.
* @retval None
*/
static void FLASH_Program_Byte(uint32_t Address, uint8_t Data)
{
/* Check the parameters */
assert_param(IS_FLASH_ADDRESS(Address));
/* If the previous operation is completed, proceed to program the new data */
FLASH->CR &= CR_PSIZE_MASK;
FLASH->CR |= FLASH_PSIZE_BYTE;
FLASH->CR |= FLASH_CR_PG;
*(__IO uint8_t*)Address = Data;
/* Data synchronous Barrier (DSB) Just after the write operation
This will force the CPU to respect the sequence of instruction (no optimization).*/
__DSB();
}
/**
* @brief Set the specific FLASH error flag.
* @retval None
*/
static void FLASH_SetErrorCode(void)
{
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_OPERATION;
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP;
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_PGA;
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGPERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_PGP;
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_ERSERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_ERS;
}
#if defined (FLASH_OPTCR2_PCROP)
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) != RESET)
{
pFlash.ErrorCode |= HAL_FLASH_ERROR_RD;
}
#endif /* FLASH_OPTCR2_PCROP */
/* Clear error programming flags */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS);
}
/**
* @}
*/
#endif /* HAL_FLASH_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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@ -0,0 +1,527 @@
/**
******************************************************************************
* @file stm32f7xx_hal_gpio.c
* @author MCD Application Team
* @brief GPIO HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the General Purpose Input/Output (GPIO) peripheral:
* + Initialization and de-initialization functions
* + IO operation functions
*
******************************************************************************
* @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
==============================================================================
##### GPIO Peripheral features #####
==============================================================================
[..]
Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each
port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software
in several modes:
(+) Input mode
(+) Analog mode
(+) Output mode
(+) Alternate function mode
(+) External interrupt/event lines
[..]
During and just after reset, the alternate functions and external interrupt
lines are not active and the I/O ports are configured in input floating mode.
[..]
All GPIO pins have weak internal pull-up and pull-down resistors, which can be
activated or not.
[..]
In Output or Alternate mode, each IO can be configured on open-drain or push-pull
type and the IO speed can be selected depending on the VDD value.
[..]
All ports have external interrupt/event capability. To use external interrupt
lines, the port must be configured in input mode. All available GPIO pins are
connected to the 16 external interrupt/event lines from EXTI0 to EXTI15.
[..]
The external interrupt/event controller consists of up to 23 edge detectors
(16 lines are connected to GPIO) for generating event/interrupt requests (each
input line can be independently configured to select the type (interrupt or event)
and the corresponding trigger event (rising or falling or both). Each line can
also be masked independently.
##### How to use this driver #####
==============================================================================
[..]
(#) Enable the GPIO AHB clock using the following function: __HAL_RCC_GPIOx_CLK_ENABLE().
(#) Configure the GPIO pin(s) using HAL_GPIO_Init().
(++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure
(++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef
structure.
(++) In case of Output or alternate function mode selection: the speed is
configured through "Speed" member from GPIO_InitTypeDef structure.
(++) In alternate mode is selection, the alternate function connected to the IO
is configured through "Alternate" member from GPIO_InitTypeDef structure.
(++) Analog mode is required when a pin is to be used as ADC channel
or DAC output.
(++) In case of external interrupt/event selection the "Mode" member from
GPIO_InitTypeDef structure select the type (interrupt or event) and
the corresponding trigger event (rising or falling or both).
(#) In case of external interrupt/event mode selection, configure NVIC IRQ priority
mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using
HAL_NVIC_EnableIRQ().
(#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin().
(#) To set/reset the level of a pin configured in output mode use
HAL_GPIO_WritePin()/HAL_GPIO_TogglePin().
(#) To lock pin configuration until next reset use HAL_GPIO_LockPin().
(#) During and just after reset, the alternate functions are not
active and the GPIO pins are configured in input floating mode (except JTAG
pins).
(#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose
(PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has
priority over the GPIO function.
(#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as
general purpose PH0 and PH1, respectively, when the HSE oscillator is off.
The HSE has priority over the GPIO function.
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup GPIO GPIO
* @brief GPIO HAL module driver
* @{
*/
#ifdef HAL_GPIO_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup GPIO_Private_Constants GPIO Private Constants
* @{
*/
#define GPIO_NUMBER ((uint32_t)16U)
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup GPIO_Exported_Functions GPIO Exported Functions
* @{
*/
/** @defgroup GPIO_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and de-initialization functions #####
===============================================================================
[..]
This section provides functions allowing to initialize and de-initialize the GPIOs
to be ready for use.
@endverbatim
* @{
*/
/**
* @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init.
* @param GPIOx where x can be (A..K) to select the GPIO peripheral.
* @param GPIO_Init pointer to a GPIO_InitTypeDef structure that contains
* the configuration information for the specified GPIO peripheral.
* @retval None
*/
void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init)
{
uint32_t position = 0x00;
uint32_t ioposition = 0x00;
uint32_t iocurrent = 0x00;
uint32_t temp = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Init->Pin));
assert_param(IS_GPIO_MODE(GPIO_Init->Mode));
/* Configure the port pins */
for(position = 0; position < GPIO_NUMBER; position++)
{
/* Get the IO position */
ioposition = ((uint32_t)0x01) << position;
/* Get the current IO position */
iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition;
if(iocurrent == ioposition)
{
/*--------------------- GPIO Mode Configuration ------------------------*/
/* In case of Output or Alternate function mode selection */
if(((GPIO_Init->Mode & GPIO_MODE) == MODE_OUTPUT) || ((GPIO_Init->Mode & GPIO_MODE) == MODE_AF))
{
/* Check the Speed parameter */
assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
/* Configure the IO Speed */
temp = GPIOx->OSPEEDR;
temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
temp |= (GPIO_Init->Speed << (position * 2));
GPIOx->OSPEEDR = temp;
/* Configure the IO Output Type */
temp = GPIOx->OTYPER;
temp &= ~(GPIO_OTYPER_OT_0 << position) ;
temp |= (((GPIO_Init->Mode & OUTPUT_TYPE) >> OUTPUT_TYPE_Pos) << position);
GPIOx->OTYPER = temp;
}
if((GPIO_Init->Mode & GPIO_MODE) != MODE_ANALOG)
{
/* Check the Pull parameter */
assert_param(IS_GPIO_PULL(GPIO_Init->Pull));
/* Activate the Pull-up or Pull down resistor for the current IO */
temp = GPIOx->PUPDR;
temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
temp |= ((GPIO_Init->Pull) << (position * 2));
GPIOx->PUPDR = temp;
}
/* In case of Alternate function mode selection */
if((GPIO_Init->Mode & GPIO_MODE) == MODE_AF)
{
/* Check the Alternate function parameter */
assert_param(IS_GPIO_AF(GPIO_Init->Alternate));
/* Configure Alternate function mapped with the current IO */
temp = GPIOx->AFR[position >> 3];
temp &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & (uint32_t)0x07) * 4));
GPIOx->AFR[position >> 3] = temp;
}
/* Configure IO Direction mode (Input, Output, Alternate or Analog) */
temp = GPIOx->MODER;
temp &= ~(GPIO_MODER_MODER0 << (position * 2));
temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2));
GPIOx->MODER = temp;
/*--------------------- EXTI Mode Configuration ------------------------*/
/* Configure the External Interrupt or event for the current IO */
if((GPIO_Init->Mode & EXTI_MODE) != 0x00u)
{
/* Enable SYSCFG Clock */
__HAL_RCC_SYSCFG_CLK_ENABLE();
temp = SYSCFG->EXTICR[position >> 2];
temp &= ~(((uint32_t)0x0F) << (4 * (position & 0x03)));
temp |= ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03)));
SYSCFG->EXTICR[position >> 2] = temp;
/* Clear Rising Falling edge configuration */
temp = EXTI->RTSR;
temp &= ~((uint32_t)iocurrent);
if((GPIO_Init->Mode & TRIGGER_RISING) != 0x00u)
{
temp |= iocurrent;
}
EXTI->RTSR = temp;
temp = EXTI->FTSR;
temp &= ~((uint32_t)iocurrent);
if((GPIO_Init->Mode & TRIGGER_FALLING) != 0x00u)
{
temp |= iocurrent;
}
EXTI->FTSR = temp;
temp = EXTI->EMR;
temp &= ~((uint32_t)iocurrent);
if((GPIO_Init->Mode & EXTI_EVT) != 0x00u)
{
temp |= iocurrent;
}
EXTI->EMR = temp;
/* Clear EXTI line configuration */
temp = EXTI->IMR;
temp &= ~((uint32_t)iocurrent);
if((GPIO_Init->Mode & EXTI_IT) != 0x00u)
{
temp |= iocurrent;
}
EXTI->IMR = temp;
}
}
}
}
/**
* @brief De-initializes the GPIOx peripheral registers to their default reset values.
* @param GPIOx where x can be (A..K) to select the GPIO peripheral.
* @param GPIO_Pin specifies the port bit to be written.
* This parameter can be one of GPIO_PIN_x where x can be (0..15).
* @retval None
*/
void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin)
{
uint32_t position;
uint32_t ioposition = 0x00;
uint32_t iocurrent = 0x00;
uint32_t tmp = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
/* Configure the port pins */
for(position = 0; position < GPIO_NUMBER; position++)
{
/* Get the IO position */
ioposition = ((uint32_t)0x01) << position;
/* Get the current IO position */
iocurrent = (GPIO_Pin) & ioposition;
if(iocurrent == ioposition)
{
/*------------------------- EXTI Mode Configuration --------------------*/
tmp = SYSCFG->EXTICR[position >> 2];
tmp &= (((uint32_t)0x0F) << (4 * (position & 0x03)));
if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03))))
{
/* Clear EXTI line configuration */
EXTI->IMR &= ~((uint32_t)iocurrent);
EXTI->EMR &= ~((uint32_t)iocurrent);
/* Clear Rising Falling edge configuration */
EXTI->FTSR &= ~((uint32_t)iocurrent);
EXTI->RTSR &= ~((uint32_t)iocurrent);
/* Configure the External Interrupt or event for the current IO */
tmp = ((uint32_t)0x0F) << (4 * (position & 0x03));
SYSCFG->EXTICR[position >> 2] &= ~tmp;
}
/*------------------------- GPIO Mode Configuration --------------------*/
/* Configure IO Direction in Input Floating Mode */
GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2));
/* Configure the default Alternate Function in current IO */
GPIOx->AFR[position >> 3] &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ;
/* Deactivate the Pull-up and Pull-down resistor for the current IO */
GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << (position * 2));
/* Configure the default value IO Output Type */
GPIOx->OTYPER &= ~(GPIO_OTYPER_OT_0 << position) ;
/* Configure the default value for IO Speed */
GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2));
}
}
}
/**
* @}
*/
/** @defgroup GPIO_Exported_Functions_Group2 IO operation functions
* @brief GPIO Read and Write
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Reads the specified input port pin.
* @param GPIOx where x can be (A..K) to select the GPIO peripheral.
* @param GPIO_Pin specifies the port bit to read.
* This parameter can be GPIO_PIN_x where x can be (0..15).
* @retval The input port pin value.
*/
GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
GPIO_PinState bitstatus;
/* Check the parameters */
assert_param(IS_GPIO_PIN(GPIO_Pin));
if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET)
{
bitstatus = GPIO_PIN_SET;
}
else
{
bitstatus = GPIO_PIN_RESET;
}
return bitstatus;
}
/**
* @brief Sets or clears the selected data port bit.
*
* @note This function uses GPIOx_BSRR register to allow atomic read/modify
* accesses. In this way, there is no risk of an IRQ occurring between
* the read and the modify access.
*
* @param GPIOx where x can be (A..K) to select the GPIO peripheral.
* @param GPIO_Pin specifies the port bit to be written.
* This parameter can be one of GPIO_PIN_x where x can be (0..15).
* @param PinState specifies the value to be written to the selected bit.
* This parameter can be one of the GPIO_PinState enum values:
* @arg GPIO_PIN_RESET: to clear the port pin
* @arg GPIO_PIN_SET: to set the port pin
* @retval None
*/
void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
{
/* Check the parameters */
assert_param(IS_GPIO_PIN(GPIO_Pin));
assert_param(IS_GPIO_PIN_ACTION(PinState));
if(PinState != GPIO_PIN_RESET)
{
GPIOx->BSRR = GPIO_Pin;
}
else
{
GPIOx->BSRR = (uint32_t)GPIO_Pin << 16;
}
}
/**
* @brief Toggles the specified GPIO pins.
* @param GPIOx Where x can be (A..I) to select the GPIO peripheral.
* @param GPIO_Pin Specifies the pins to be toggled.
* @retval None
*/
void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint32_t odr;
/* Check the parameters */
assert_param(IS_GPIO_PIN(GPIO_Pin));
/* get current Output Data Register value */
odr = GPIOx->ODR;
/* Set selected pins that were at low level, and reset ones that were high */
GPIOx->BSRR = ((odr & GPIO_Pin) << GPIO_NUMBER) | (~odr & GPIO_Pin);
}
/**
* @brief Locks GPIO Pins configuration registers.
* @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
* GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
* @note The configuration of the locked GPIO pins can no longer be modified
* until the next reset.
* @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F7 family
* @param GPIO_Pin specifies the port bit to be locked.
* This parameter can be any combination of GPIO_PIN_x where x can be (0..15).
* @retval None
*/
HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
__IO uint32_t tmp = GPIO_LCKR_LCKK;
/* Check the parameters */
assert_param(IS_GPIO_PIN(GPIO_Pin));
/* Apply lock key write sequence */
tmp |= GPIO_Pin;
/* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
GPIOx->LCKR = tmp;
/* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */
GPIOx->LCKR = GPIO_Pin;
/* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
GPIOx->LCKR = tmp;
/* Read LCKR register. This read is mandatory to complete key lock sequence */
tmp = GPIOx->LCKR;
/* Read again in order to confirm lock is active */
if((GPIOx->LCKR & GPIO_LCKR_LCKK) != RESET)
{
return HAL_OK;
}
else
{
return HAL_ERROR;
}
}
/**
* @brief This function handles EXTI interrupt request.
* @param GPIO_Pin Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin)
{
/* EXTI line interrupt detected */
if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET)
{
__HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
HAL_GPIO_EXTI_Callback(GPIO_Pin);
}
}
/**
* @brief EXTI line detection callbacks.
* @param GPIO_Pin Specifies the pins connected EXTI line
* @retval None
*/
__weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(GPIO_Pin);
/* NOTE: This function Should not be modified, when the callback is needed,
the HAL_GPIO_EXTI_Callback could be implemented in the user file
*/
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_GPIO_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32f7xx_hal_i2c_ex.c
* @author MCD Application Team
* @brief I2C Extended HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of I2C Extended peripheral:
* + Filter Mode Functions
* + FastModePlus Functions
*
******************************************************************************
* @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
==============================================================================
##### I2C peripheral Extended features #####
==============================================================================
[..] Comparing to other previous devices, the I2C interface for STM32F7xx
devices contains the following additional features
(+) Possibility to disable or enable Analog Noise Filter
(+) Use of a configured Digital Noise Filter
(+) Disable or enable Fast Mode Plus
##### How to use this driver #####
==============================================================================
[..] This driver provides functions to:
(#) Configure I2C Analog noise filter using the function HAL_I2CEx_ConfigAnalogFilter()
(#) Configure I2C Digital noise filter using the function HAL_I2CEx_ConfigDigitalFilter()
(#) Configure the enable or disable of fast mode plus driving capability using the functions :
(++) HAL_I2CEx_EnableFastModePlus()
(++) HAL_I2CEx_DisableFastModePlus()
@endverbatim
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup I2CEx I2CEx
* @brief I2C Extended HAL module driver
* @{
*/
#ifdef HAL_I2C_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup I2CEx_Exported_Functions I2C Extended Exported Functions
* @{
*/
/** @defgroup I2CEx_Exported_Functions_Group1 Filter Mode Functions
* @brief Filter Mode Functions
*
@verbatim
===============================================================================
##### Filter Mode Functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Configure Noise Filters
@endverbatim
* @{
*/
/**
* @brief Configure I2C Analog noise filter.
* @param hi2c Pointer to a I2C_HandleTypeDef structure that contains
* the configuration information for the specified I2Cx peripheral.
* @param AnalogFilter New state of the Analog filter.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
{
/* Check the parameters */
assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
if (hi2c->State == HAL_I2C_STATE_READY)
{
/* Process Locked */
__HAL_LOCK(hi2c);
hi2c->State = HAL_I2C_STATE_BUSY;
/* Disable the selected I2C peripheral */
__HAL_I2C_DISABLE(hi2c);
/* Reset I2Cx ANOFF bit */
hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);
/* Set analog filter bit*/
hi2c->Instance->CR1 |= AnalogFilter;
__HAL_I2C_ENABLE(hi2c);
hi2c->State = HAL_I2C_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hi2c);
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Configure I2C Digital noise filter.
* @param hi2c Pointer to a I2C_HandleTypeDef structure that contains
* the configuration information for the specified I2Cx peripheral.
* @param DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)
{
uint32_t tmpreg;
/* Check the parameters */
assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));
if (hi2c->State == HAL_I2C_STATE_READY)
{
/* Process Locked */
__HAL_LOCK(hi2c);
hi2c->State = HAL_I2C_STATE_BUSY;
/* Disable the selected I2C peripheral */
__HAL_I2C_DISABLE(hi2c);
/* Get the old register value */
tmpreg = hi2c->Instance->CR1;
/* Reset I2Cx DNF bits [11:8] */
tmpreg &= ~(I2C_CR1_DNF);
/* Set I2Cx DNF coefficient */
tmpreg |= DigitalFilter << 8U;
/* Store the new register value */
hi2c->Instance->CR1 = tmpreg;
__HAL_I2C_ENABLE(hi2c);
hi2c->State = HAL_I2C_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hi2c);
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @}
*/
#if (defined(SYSCFG_PMC_I2C_PB6_FMP) || defined(SYSCFG_PMC_I2C_PB7_FMP)) || (defined(SYSCFG_PMC_I2C_PB8_FMP) || defined(SYSCFG_PMC_I2C_PB9_FMP)) || (defined(SYSCFG_PMC_I2C1_FMP)) || (defined(SYSCFG_PMC_I2C2_FMP)) || defined(SYSCFG_PMC_I2C3_FMP) || defined(SYSCFG_PMC_I2C4_FMP)
/** @defgroup I2CEx_Exported_Functions_Group3 Fast Mode Plus Functions
* @brief Fast Mode Plus Functions
*
@verbatim
===============================================================================
##### Fast Mode Plus Functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Configure Fast Mode Plus
@endverbatim
* @{
*/
/**
* @brief Enable the I2C fast mode plus driving capability.
* @param ConfigFastModePlus Selects the pin.
* This parameter can be one of the @ref I2CEx_FastModePlus values
* @note For I2C1, fast mode plus driving capability can be enabled on all selected
* I2C1 pins using I2C_FASTMODEPLUS_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 I2C_FASTMODEPLUS_I2C1 parameter.
* @note For all I2C2 pins fast mode plus driving capability can be enabled
* only by using I2C_FASTMODEPLUS_I2C2 parameter.
* @note For all I2C3 pins fast mode plus driving capability can be enabled
* only by using I2C_FASTMODEPLUS_I2C3 parameter.
* @note For all I2C4 pins fast mode plus driving capability can be enabled
* only by using I2C_FASTMODEPLUS_I2C4 parameter.
* @retval None
*/
void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
{
/* Check the parameter */
assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
/* Enable SYSCFG clock */
__HAL_RCC_SYSCFG_CLK_ENABLE();
/* Enable fast mode plus driving capability for selected pin */
SET_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
}
/**
* @brief Disable the I2C fast mode plus driving capability.
* @param ConfigFastModePlus Selects the pin.
* This parameter can be one of the @ref I2CEx_FastModePlus values
* @note For I2C1, fast mode plus driving capability can be disabled on all selected
* I2C1 pins using I2C_FASTMODEPLUS_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 disabled only by using I2C_FASTMODEPLUS_I2C1 parameter.
* @note For all I2C2 pins fast mode plus driving capability can be disabled
* only by using I2C_FASTMODEPLUS_I2C2 parameter.
* @note For all I2C3 pins fast mode plus driving capability can be disabled
* only by using I2C_FASTMODEPLUS_I2C3 parameter.
* @note For all I2C4 pins fast mode plus driving capability can be disabled
* only by using I2C_FASTMODEPLUS_I2C4 parameter.
* @retval None
*/
void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
{
/* Check the parameter */
assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
/* Enable SYSCFG clock */
__HAL_RCC_SYSCFG_CLK_ENABLE();
/* Disable fast mode plus driving capability for selected pin */
CLEAR_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
}
/**
* @}
*/
#endif /* Fast Mode Plus Availability */
/**
* @}
*/
#endif /* HAL_I2C_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32f7xx_hal_pwr.c
* @author MCD Application Team
* @brief PWR HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Power Controller (PWR) peripheral:
* + Initialization and de-initialization functions
* + Peripheral Control functions
*
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup PWR PWR
* @brief PWR HAL module driver
* @{
*/
#ifdef HAL_PWR_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup PWR_Private_Constants
* @{
*/
/** @defgroup PWR_PVD_Mode_Mask PWR PVD Mode Mask
* @{
*/
#define PVD_MODE_IT ((uint32_t)0x00010000U)
#define PVD_MODE_EVT ((uint32_t)0x00020000U)
#define PVD_RISING_EDGE ((uint32_t)0x00000001U)
#define PVD_FALLING_EDGE ((uint32_t)0x00000002U)
/**
* @}
*/
/** @defgroup PWR_ENABLE_WUP_Mask PWR Enable WUP Mask
* @{
*/
#define PWR_EWUP_MASK ((uint32_t)0x00003F00)
/**
* @}
*/
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup PWR_Exported_Functions PWR Exported Functions
* @{
*/
/** @defgroup PWR_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and de-initialization functions
*
@verbatim
===============================================================================
##### Initialization and de-initialization functions #####
===============================================================================
[..]
After reset, the backup domain (RTC registers, RTC backup data
registers and backup SRAM) is protected against possible unwanted
write accesses.
To enable access to the RTC Domain and RTC registers, proceed as follows:
(+) Enable the Power Controller (PWR) APB1 interface clock using the
__HAL_RCC_PWR_CLK_ENABLE() macro.
(+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the HAL PWR peripheral registers to their default reset values.
* @retval None
*/
void HAL_PWR_DeInit(void)
{
__HAL_RCC_PWR_FORCE_RESET();
__HAL_RCC_PWR_RELEASE_RESET();
}
/**
* @brief Enables access to the backup domain (RTC registers, RTC
* backup data registers and backup SRAM).
* @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
* Backup Domain Access should be kept enabled.
* @retval None
*/
void HAL_PWR_EnableBkUpAccess(void)
{
/* Enable access to RTC and backup registers */
SET_BIT(PWR->CR1, PWR_CR1_DBP);
}
/**
* @brief Disables access to the backup domain (RTC registers, RTC
* backup data registers and backup SRAM).
* @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
* Backup Domain Access should be kept enabled.
* @retval None
*/
void HAL_PWR_DisableBkUpAccess(void)
{
/* Disable access to RTC and backup registers */
CLEAR_BIT(PWR->CR1, PWR_CR1_DBP);
}
/**
* @}
*/
/** @defgroup PWR_Exported_Functions_Group2 Peripheral Control functions
* @brief Low Power modes configuration functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
*** PVD configuration ***
=========================
[..]
(+) The PVD is used to monitor the VDD power supply by comparing it to a
threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR).
(+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower
than the PVD threshold. This event is internally connected to the EXTI
line16 and can generate an interrupt if enabled. This is done through
__HAL_PWR_PVD_EXTI_ENABLE_IT() macro.
(+) The PVD is stopped in Standby mode.
*** Wake-up pin configuration ***
================================
[..]
(+) Wake-up pin is used to wake up the system from Standby mode. This pin is
forced in input pull-down configuration and is active on rising edges.
(+) There are up to 6 Wake-up pin in the STM32F7 devices family
*** Low Power modes configuration ***
=====================================
[..]
The devices feature 3 low-power modes:
(+) Sleep mode: Cortex-M7 core stopped, peripherals kept running.
(+) Stop mode: all clocks are stopped, regulator running, regulator
in low power mode
(+) Standby mode: 1.2V domain powered off.
*** Sleep mode ***
==================
[..]
(+) Entry:
The Sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI)
functions with
(++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
(++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
-@@- The Regulator parameter is not used for the STM32F7 family
and is kept as parameter just to maintain compatibility with the
lower power families (STM32L).
(+) Exit:
Any peripheral interrupt acknowledged by the nested vectored interrupt
controller (NVIC) can wake up the device from Sleep mode.
*** Stop mode ***
=================
[..]
In Stop mode, all clocks in the 1.2V domain are stopped, the PLL, the HSI,
and the HSE RC oscillators are disabled. Internal SRAM and register contents
are preserved.
The voltage regulator can be configured either in normal or low-power mode.
To minimize the consumption In Stop mode, FLASH can be powered off before
entering the Stop mode using the HAL_PWREx_EnableFlashPowerDown() function.
It can be switched on again by software after exiting the Stop mode using
the HAL_PWREx_DisableFlashPowerDown() function.
(+) Entry:
The Stop mode is entered using the HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON)
function with:
(++) Main regulator ON.
(++) Low Power regulator ON.
(+) Exit:
Any EXTI Line (Internal or External) configured in Interrupt/Event mode.
*** Standby mode ***
====================
[..]
(+)
The Standby mode allows to achieve the lowest power consumption. It is based
on the Cortex-M7 deep sleep mode, with the voltage regulator disabled.
The 1.2V domain is consequently powered off. The PLL, the HSI oscillator and
the HSE oscillator are also switched off. SRAM and register contents are lost
except for the RTC registers, RTC backup registers, backup SRAM and Standby
circuitry.
The voltage regulator is OFF.
(++) Entry:
(+++) The Standby mode is entered using the HAL_PWR_EnterSTANDBYMode() function.
(++) Exit:
(+++) WKUP pin rising or falling edge, RTC alarm (Alarm A and Alarm B), RTC
wakeup, tamper event, time stamp event, external reset in NRST pin, IWDG reset.
*** Auto-wakeup (AWU) from low-power mode ***
=============================================
[..]
(+) The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC
Wakeup event, a tamper event or a time-stamp event, without depending on
an external interrupt (Auto-wakeup mode).
(+) RTC auto-wakeup (AWU) from the Stop and Standby modes
(++) To wake up from the Stop mode with an RTC alarm event, it is necessary to
configure the RTC to generate the RTC alarm using the HAL_RTC_SetAlarm_IT() function.
(++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it
is necessary to configure the RTC to detect the tamper or time stamp event using the
HAL_RTCEx_SetTimeStamp_IT() or HAL_RTCEx_SetTamper_IT() functions.
(++) To wake up from the Stop mode with an RTC WakeUp event, it is necessary to
configure the RTC to generate the RTC WakeUp event using the HAL_RTCEx_SetWakeUpTimer_IT() function.
@endverbatim
* @{
*/
/**
* @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD).
* @param sConfigPVD pointer to an PWR_PVDTypeDef structure that contains the configuration
* information for the PVD.
* @note Refer to the electrical characteristics of your device datasheet for
* more details about the voltage threshold corresponding to each
* detection level.
* @retval None
*/
void HAL_PWR_ConfigPVD(PWR_PVDTypeDef *sConfigPVD)
{
/* Check the parameters */
assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel));
assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode));
/* Set PLS[7:5] bits according to PVDLevel value */
MODIFY_REG(PWR->CR1, PWR_CR1_PLS, sConfigPVD->PVDLevel);
/* Clear any previous config. Keep it clear if no event or IT mode is selected */
__HAL_PWR_PVD_EXTI_DISABLE_EVENT();
__HAL_PWR_PVD_EXTI_DISABLE_IT();
__HAL_PWR_PVD_EXTI_DISABLE_RISING_EDGE();
__HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE();
/* Configure interrupt mode */
if((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT)
{
__HAL_PWR_PVD_EXTI_ENABLE_IT();
}
/* Configure event mode */
if((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT)
{
__HAL_PWR_PVD_EXTI_ENABLE_EVENT();
}
/* Configure the edge */
if((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE)
{
__HAL_PWR_PVD_EXTI_ENABLE_RISING_EDGE();
}
if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE)
{
__HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE();
}
}
/**
* @brief Enables the Power Voltage Detector(PVD).
* @retval None
*/
void HAL_PWR_EnablePVD(void)
{
/* Enable the power voltage detector */
SET_BIT(PWR->CR1, PWR_CR1_PVDE);
}
/**
* @brief Disables the Power Voltage Detector(PVD).
* @retval None
*/
void HAL_PWR_DisablePVD(void)
{
/* Disable the power voltage detector */
CLEAR_BIT(PWR->CR1, PWR_CR1_PVDE);
}
/**
* @brief Enable the WakeUp PINx functionality.
* @param WakeUpPinPolarity Specifies which Wake-Up pin to enable.
* This parameter can be one of the following legacy values, which sets the default polarity:
* detection on high level (rising edge):
* @arg PWR_WAKEUP_PIN1, PWR_WAKEUP_PIN2, PWR_WAKEUP_PIN3, PWR_WAKEUP_PIN4, PWR_WAKEUP_PIN5, PWR_WAKEUP_PIN6
* or one of the following value where the user can explicitly states the enabled pin and
* the chosen polarity
* @arg PWR_WAKEUP_PIN1_HIGH or PWR_WAKEUP_PIN1_LOW
* @arg PWR_WAKEUP_PIN2_HIGH or PWR_WAKEUP_PIN2_LOW
* @arg PWR_WAKEUP_PIN3_HIGH or PWR_WAKEUP_PIN3_LOW
* @arg PWR_WAKEUP_PIN4_HIGH or PWR_WAKEUP_PIN4_LOW
* @arg PWR_WAKEUP_PIN5_HIGH or PWR_WAKEUP_PIN5_LOW
* @arg PWR_WAKEUP_PIN6_HIGH or PWR_WAKEUP_PIN6_LOW
* @note PWR_WAKEUP_PINx and PWR_WAKEUP_PINx_HIGH are equivalent.
* @retval None
*/
void HAL_PWR_EnableWakeUpPin(uint32_t WakeUpPinPolarity)
{
assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinPolarity));
/* Enable wake-up pin */
SET_BIT(PWR->CSR2, (PWR_EWUP_MASK & WakeUpPinPolarity));
/* Specifies the Wake-Up pin polarity for the event detection
(rising or falling edge) */
MODIFY_REG(PWR->CR2, (PWR_EWUP_MASK & WakeUpPinPolarity), (WakeUpPinPolarity >> 0x06));
}
/**
* @brief Disables the WakeUp PINx functionality.
* @param WakeUpPinx Specifies the Power Wake-Up pin to disable.
* This parameter can be one of the following values:
* @arg PWR_WAKEUP_PIN1
* @arg PWR_WAKEUP_PIN2
* @arg PWR_WAKEUP_PIN3
* @arg PWR_WAKEUP_PIN4
* @arg PWR_WAKEUP_PIN5
* @arg PWR_WAKEUP_PIN6
* @retval None
*/
void HAL_PWR_DisableWakeUpPin(uint32_t WakeUpPinx)
{
assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));
CLEAR_BIT(PWR->CSR2, WakeUpPinx);
}
/**
* @brief Enters Sleep mode.
*
* @note In Sleep mode, all I/O pins keep the same state as in Run mode.
*
* @note In Sleep mode, the systick is stopped to avoid exit from this mode with
* systick interrupt when used as time base for Timeout
*
* @param Regulator Specifies the regulator state in SLEEP mode.
* This parameter can be one of the following values:
* @arg PWR_MAINREGULATOR_ON: SLEEP mode with regulator ON
* @arg PWR_LOWPOWERREGULATOR_ON: SLEEP mode with low power regulator ON
* @note This parameter is not used for the STM32F7 family and is kept as parameter
* just to maintain compatibility with the lower power families.
* @param SLEEPEntry Specifies if SLEEP mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
* @arg PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
* @retval None
*/
void HAL_PWR_EnterSLEEPMode(uint32_t Regulator, uint8_t SLEEPEntry)
{
/* Check the parameters */
assert_param(IS_PWR_REGULATOR(Regulator));
assert_param(IS_PWR_SLEEP_ENTRY(SLEEPEntry));
/* Clear SLEEPDEEP bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
/* Ensure that all instructions done before entering SLEEP mode */
__DSB();
__ISB();
/* Select SLEEP mode entry -------------------------------------------------*/
if(SLEEPEntry == PWR_SLEEPENTRY_WFI)
{
/* Request Wait For Interrupt */
__WFI();
}
else
{
/* Request Wait For Event */
__SEV();
__WFE();
__WFE();
}
}
/**
* @brief Enters Stop mode.
* @note In Stop mode, all I/O pins keep the same state as in Run mode.
* @note When exiting Stop mode by issuing an interrupt or a wakeup event,
* the HSI RC oscillator is selected as system clock.
* @note When the voltage regulator operates in low power mode, an additional
* startup delay is incurred when waking up from Stop mode.
* By keeping the internal regulator ON during Stop mode, the consumption
* is higher although the startup time is reduced.
* @param Regulator Specifies the regulator state in Stop mode.
* This parameter can be one of the following values:
* @arg PWR_MAINREGULATOR_ON: Stop mode with regulator ON
* @arg PWR_LOWPOWERREGULATOR_ON: Stop mode with low power regulator ON
* @param STOPEntry Specifies if Stop mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_STOPENTRY_WFI: Enter Stop mode with WFI instruction
* @arg PWR_STOPENTRY_WFE: Enter Stop mode with WFE instruction
* @retval None
*/
void HAL_PWR_EnterSTOPMode(uint32_t Regulator, uint8_t STOPEntry)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_REGULATOR(Regulator));
assert_param(IS_PWR_STOP_ENTRY(STOPEntry));
/* Select the regulator state in Stop mode ---------------------------------*/
tmpreg = PWR->CR1;
/* Clear PDDS and LPDS bits */
tmpreg &= (uint32_t)~(PWR_CR1_PDDS | PWR_CR1_LPDS);
/* Set LPDS, MRLVDS and LPLVDS bits according to Regulator value */
tmpreg |= Regulator;
/* Store the new value */
PWR->CR1 = tmpreg;
/* Set SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Ensure that all instructions done before entering STOP mode */
__DSB();
__ISB();
/* Select Stop mode entry --------------------------------------------------*/
if(STOPEntry == PWR_STOPENTRY_WFI)
{
/* Request Wait For Interrupt */
__WFI();
}
else
{
/* Request Wait For Event */
__SEV();
__WFE();
__WFE();
}
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
}
/**
* @brief Enters Standby mode.
* @note In Standby mode, all I/O pins are high impedance except for:
* - Reset pad (still available)
* - RTC_AF1 pin (PC13) if configured for tamper, time-stamp, RTC
* Alarm out, or RTC clock calibration out.
* - RTC_AF2 pin (PI8) if configured for tamper or time-stamp.
* - WKUP pins if enabled.
* @retval None
*/
void HAL_PWR_EnterSTANDBYMode(void)
{
/* Select Standby mode */
PWR->CR1 |= PWR_CR1_PDDS;
/* Set SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* This option is used to ensure that store operations are completed */
#if defined ( __CC_ARM)
__force_stores();
#endif
/* Request Wait For Interrupt */
__WFI();
}
/**
* @brief This function handles the PWR PVD interrupt request.
* @note This API should be called under the PVD_IRQHandler().
* @retval None
*/
void HAL_PWR_PVD_IRQHandler(void)
{
/* Check PWR Exti flag */
if(__HAL_PWR_PVD_EXTI_GET_FLAG() != RESET)
{
/* PWR PVD interrupt user callback */
HAL_PWR_PVDCallback();
/* Clear PWR Exti pending bit */
__HAL_PWR_PVD_EXTI_CLEAR_FLAG();
}
}
/**
* @brief PWR PVD interrupt callback
* @retval None
*/
__weak void HAL_PWR_PVDCallback(void)
{
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_PWR_PVDCallback could be implemented in the user file
*/
}
/**
* @brief Indicates Sleep-On-Exit when returning from Handler mode to Thread mode.
* @note Set SLEEPONEXIT bit of SCR register. When this bit is set, the processor
* re-enters SLEEP mode when an interruption handling is over.
* Setting this bit is useful when the processor is expected to run only on
* interruptions handling.
* @retval None
*/
void HAL_PWR_EnableSleepOnExit(void)
{
/* Set SLEEPONEXIT bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
}
/**
* @brief Disables Sleep-On-Exit feature when returning from Handler mode to Thread mode.
* @note Clears SLEEPONEXIT bit of SCR register. When this bit is set, the processor
* re-enters SLEEP mode when an interruption handling is over.
* @retval None
*/
void HAL_PWR_DisableSleepOnExit(void)
{
/* Clear SLEEPONEXIT bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
}
/**
* @brief Enables CORTEX M4 SEVONPEND bit.
* @note Sets SEVONPEND bit of SCR register. When this bit is set, this causes
* WFE to wake up when an interrupt moves from inactive to pended.
* @retval None
*/
void HAL_PWR_EnableSEVOnPend(void)
{
/* Set SEVONPEND bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
}
/**
* @brief Disables CORTEX M4 SEVONPEND bit.
* @note Clears SEVONPEND bit of SCR register. When this bit is set, this causes
* WFE to wake up when an interrupt moves from inactive to pended.
* @retval None
*/
void HAL_PWR_DisableSEVOnPend(void)
{
/* Clear SEVONPEND bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_PWR_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32f7xx_hal_pwr_ex.c
* @author MCD Application Team
* @brief Extended PWR HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of PWR extension peripheral:
* + Peripheral Extended features functions
*
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup PWREx PWREx
* @brief PWR HAL module driver
* @{
*/
#ifdef HAL_PWR_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @addtogroup PWREx_Private_Constants
* @{
*/
#define PWR_OVERDRIVE_TIMEOUT_VALUE 1000
#define PWR_UDERDRIVE_TIMEOUT_VALUE 1000
#define PWR_BKPREG_TIMEOUT_VALUE 1000
#define PWR_VOSRDY_TIMEOUT_VALUE 1000
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup PWREx_Exported_Functions PWREx Exported Functions
* @{
*/
/** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended features functions
* @brief Peripheral Extended features functions
*
@verbatim
===============================================================================
##### Peripheral extended features functions #####
===============================================================================
*** Main and Backup Regulators configuration ***
================================================
[..]
(+) The backup domain includes 4 Kbytes of backup SRAM accessible only from
the CPU, and address in 32-bit, 16-bit or 8-bit mode. Its content is
retained even in Standby or VBAT mode when the low power backup regulator
is enabled. It can be considered as an internal EEPROM when VBAT is
always present. You can use the HAL_PWREx_EnableBkUpReg() function to
enable the low power backup regulator.
(+) When the backup domain is supplied by VDD (analog switch connected to VDD)
the backup SRAM is powered from VDD which replaces the VBAT power supply to
save battery life.
(+) The backup SRAM is not mass erased by a tamper event. It is read
protected to prevent confidential data, such as cryptographic private
key, from being accessed. The backup SRAM can be erased only through
the Flash interface when a protection level change from level 1 to
level 0 is requested.
-@- Refer to the description of Read protection (RDP) in the Flash
programming manual.
(+) The main internal regulator can be configured to have a tradeoff between
performance and power consumption when the device does not operate at
the maximum frequency. This is done through __HAL_PWR_MAINREGULATORMODE_CONFIG()
macro which configure VOS bit in PWR_CR register
Refer to the product datasheets for more details.
*** FLASH Power Down configuration ****
=======================================
[..]
(+) By setting the FPDS bit in the PWR_CR register by using the
HAL_PWREx_EnableFlashPowerDown() function, the Flash memory also enters power
down mode when the device enters Stop mode. When the Flash memory
is in power down mode, an additional startup delay is incurred when
waking up from Stop mode.
*** Over-Drive and Under-Drive configuration ****
=================================================
[..]
(+) In Run mode: the main regulator has 2 operating modes available:
(++) Normal mode: The CPU and core logic operate at maximum frequency at a given
voltage scaling (scale 1, scale 2 or scale 3)
(++) Over-drive mode: This mode allows the CPU and the core logic to operate at a
higher frequency than the normal mode for a given voltage scaling (scale 1,
scale 2 or scale 3). This mode is enabled through HAL_PWREx_EnableOverDrive() function and
disabled by HAL_PWREx_DisableOverDrive() function, to enter or exit from Over-drive mode please follow
the sequence described in Reference manual.
(+) In Stop mode: the main regulator or low power regulator supplies a low power
voltage to the 1.2V domain, thus preserving the content of registers
and internal SRAM. 2 operating modes are available:
(++) Normal mode: the 1.2V domain is preserved in nominal leakage mode. This mode is only
available when the main regulator or the low power regulator is used in Scale 3 or
low voltage mode.
(++) Under-drive mode: the 1.2V domain is preserved in reduced leakage mode. This mode is only
available when the main regulator or the low power regulator is in low voltage mode.
@endverbatim
* @{
*/
/**
* @brief Enables the Backup Regulator.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PWREx_EnableBkUpReg(void)
{
uint32_t tickstart = 0;
/* Enable Backup regulator */
PWR->CSR1 |= PWR_CSR1_BRE;
/* Workaround for the following hardware bug: */
/* Id 19: PWR : No STANDBY wake-up when Back-up RAM enabled (ref. Errata Sheet p23) */
PWR->CSR1 |= PWR_CSR1_EIWUP;
/* Get tick */
tickstart = HAL_GetTick();
/* Wait till Backup regulator ready flag is set */
while(__HAL_PWR_GET_FLAG(PWR_FLAG_BRR) == RESET)
{
if((HAL_GetTick() - tickstart ) > PWR_BKPREG_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Disables the Backup Regulator.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PWREx_DisableBkUpReg(void)
{
uint32_t tickstart = 0;
/* Disable Backup regulator */
PWR->CSR1 &= (uint32_t)~((uint32_t)PWR_CSR1_BRE);
/* Workaround for the following hardware bug: */
/* Id 19: PWR : No STANDBY wake-up when Back-up RAM enabled (ref. Errata Sheet p23) */
PWR->CSR1 |= PWR_CSR1_EIWUP;
/* Get tick */
tickstart = HAL_GetTick();
/* Wait till Backup regulator ready flag is set */
while(__HAL_PWR_GET_FLAG(PWR_FLAG_BRR) != RESET)
{
if((HAL_GetTick() - tickstart ) > PWR_BKPREG_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Enables the Flash Power Down in Stop mode.
* @retval None
*/
void HAL_PWREx_EnableFlashPowerDown(void)
{
/* Enable the Flash Power Down */
PWR->CR1 |= PWR_CR1_FPDS;
}
/**
* @brief Disables the Flash Power Down in Stop mode.
* @retval None
*/
void HAL_PWREx_DisableFlashPowerDown(void)
{
/* Disable the Flash Power Down */
PWR->CR1 &= (uint32_t)~((uint32_t)PWR_CR1_FPDS);
}
/**
* @brief Enables Main Regulator low voltage mode.
* @retval None
*/
void HAL_PWREx_EnableMainRegulatorLowVoltage(void)
{
/* Enable Main regulator low voltage */
PWR->CR1 |= PWR_CR1_MRUDS;
}
/**
* @brief Disables Main Regulator low voltage mode.
* @retval None
*/
void HAL_PWREx_DisableMainRegulatorLowVoltage(void)
{
/* Disable Main regulator low voltage */
PWR->CR1 &= (uint32_t)~((uint32_t)PWR_CR1_MRUDS);
}
/**
* @brief Enables Low Power Regulator low voltage mode.
* @retval None
*/
void HAL_PWREx_EnableLowRegulatorLowVoltage(void)
{
/* Enable low power regulator */
PWR->CR1 |= PWR_CR1_LPUDS;
}
/**
* @brief Disables Low Power Regulator low voltage mode.
* @retval None
*/
void HAL_PWREx_DisableLowRegulatorLowVoltage(void)
{
/* Disable low power regulator */
PWR->CR1 &= (uint32_t)~((uint32_t)PWR_CR1_LPUDS);
}
/**
* @brief Activates the Over-Drive mode.
* @note This mode allows the CPU and the core logic to operate at a higher frequency
* than the normal mode for a given voltage scaling (scale 1, scale 2 or scale 3).
* @note It is recommended to enter or exit Over-drive mode when the application is not running
* critical tasks and when the system clock source is either HSI or HSE.
* During the Over-drive switch activation, no peripheral clocks should be enabled.
* The peripheral clocks must be enabled once the Over-drive mode is activated.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PWREx_EnableOverDrive(void)
{
uint32_t tickstart = 0;
__HAL_RCC_PWR_CLK_ENABLE();
/* Enable the Over-drive to extend the clock frequency to 216 MHz */
__HAL_PWR_OVERDRIVE_ENABLE();
/* Get tick */
tickstart = HAL_GetTick();
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_ODRDY))
{
if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Enable the Over-drive switch */
__HAL_PWR_OVERDRIVESWITCHING_ENABLE();
/* Get tick */
tickstart = HAL_GetTick();
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_ODSWRDY))
{
if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Deactivates the Over-Drive mode.
* @note This mode allows the CPU and the core logic to operate at a higher frequency
* than the normal mode for a given voltage scaling (scale 1, scale 2 or scale 3).
* @note It is recommended to enter or exit Over-drive mode when the application is not running
* critical tasks and when the system clock source is either HSI or HSE.
* During the Over-drive switch activation, no peripheral clocks should be enabled.
* The peripheral clocks must be enabled once the Over-drive mode is activated.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PWREx_DisableOverDrive(void)
{
uint32_t tickstart = 0;
__HAL_RCC_PWR_CLK_ENABLE();
/* Disable the Over-drive switch */
__HAL_PWR_OVERDRIVESWITCHING_DISABLE();
/* Get tick */
tickstart = HAL_GetTick();
while(__HAL_PWR_GET_FLAG(PWR_FLAG_ODSWRDY))
{
if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Disable the Over-drive */
__HAL_PWR_OVERDRIVE_DISABLE();
/* Get tick */
tickstart = HAL_GetTick();
while(__HAL_PWR_GET_FLAG(PWR_FLAG_ODRDY))
{
if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Enters in Under-Drive STOP mode.
*
* @note This mode can be selected only when the Under-Drive is already active
*
* @note This mode is enabled only with STOP low power mode.
* In this mode, the 1.2V domain is preserved in reduced leakage mode. This
* mode is only available when the main regulator or the low power regulator
* is in low voltage mode
*
* @note If the Under-drive mode was enabled, it is automatically disabled after
* exiting Stop mode.
* When the voltage regulator operates in Under-drive mode, an additional
* startup delay is induced when waking up from Stop mode.
*
* @note In Stop mode, all I/O pins keep the same state as in Run mode.
*
* @note When exiting Stop mode by issuing an interrupt or a wakeup event,
* the HSI RC oscillator is selected as system clock.
*
* @note When the voltage regulator operates in low power mode, an additional
* startup delay is incurred when waking up from Stop mode.
* By keeping the internal regulator ON during Stop mode, the consumption
* is higher although the startup time is reduced.
*
* @param Regulator specifies the regulator state in STOP mode.
* This parameter can be one of the following values:
* @arg PWR_MAINREGULATOR_UNDERDRIVE_ON: Main Regulator in under-drive mode
* and Flash memory in power-down when the device is in Stop under-drive mode
* @arg PWR_LOWPOWERREGULATOR_UNDERDRIVE_ON: Low Power Regulator in under-drive mode
* and Flash memory in power-down when the device is in Stop under-drive mode
* @param STOPEntry specifies if STOP mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_SLEEPENTRY_WFI: enter STOP mode with WFI instruction
* @arg PWR_SLEEPENTRY_WFE: enter STOP mode with WFE instruction
* @retval None
*/
HAL_StatusTypeDef HAL_PWREx_EnterUnderDriveSTOPMode(uint32_t Regulator, uint8_t STOPEntry)
{
uint32_t tempreg = 0;
uint32_t tickstart = 0;
/* Check the parameters */
assert_param(IS_PWR_REGULATOR_UNDERDRIVE(Regulator));
assert_param(IS_PWR_STOP_ENTRY(STOPEntry));
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Enable the Under-drive Mode ---------------------------------------------*/
/* Clear Under-drive flag */
__HAL_PWR_CLEAR_ODRUDR_FLAG();
/* Enable the Under-drive */
__HAL_PWR_UNDERDRIVE_ENABLE();
/* Get tick */
tickstart = HAL_GetTick();
/* Wait for UnderDrive mode is ready */
while(__HAL_PWR_GET_FLAG(PWR_FLAG_UDRDY))
{
if((HAL_GetTick() - tickstart ) > PWR_UDERDRIVE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Select the regulator state in STOP mode ---------------------------------*/
tempreg = PWR->CR1;
/* Clear PDDS, LPDS, MRLUDS and LPLUDS bits */
tempreg &= (uint32_t)~(PWR_CR1_PDDS | PWR_CR1_LPDS | PWR_CR1_LPUDS | PWR_CR1_MRUDS);
/* Set LPDS, MRLUDS and LPLUDS bits according to PWR_Regulator value */
tempreg |= Regulator;
/* Store the new value */
PWR->CR1 = tempreg;
/* Set SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Select STOP mode entry --------------------------------------------------*/
if(STOPEntry == PWR_SLEEPENTRY_WFI)
{
/* Request Wait For Interrupt */
__WFI();
}
else
{
/* Request Wait For Event */
__WFE();
}
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
return HAL_OK;
}
/**
* @brief Returns Voltage Scaling Range.
* @retval VOS bit field (PWR_REGULATOR_VOLTAGE_SCALE1, PWR_REGULATOR_VOLTAGE_SCALE2 or
* PWR_REGULATOR_VOLTAGE_SCALE3)PWR_REGULATOR_VOLTAGE_SCALE1
*/
uint32_t HAL_PWREx_GetVoltageRange(void)
{
return (PWR->CR1 & PWR_CR1_VOS);
}
/**
* @brief Configures the main internal regulator output voltage.
* @param VoltageScaling specifies the regulator output voltage to achieve
* a tradeoff between performance and power consumption.
* This parameter can be one of the following values:
* @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output range 1 mode,
* typical output voltage at 1.4 V,
* system frequency up to 216 MHz.
* @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output range 2 mode,
* typical output voltage at 1.2 V,
* system frequency up to 180 MHz.
* @arg PWR_REGULATOR_VOLTAGE_SCALE3: Regulator voltage output range 2 mode,
* typical output voltage at 1.00 V,
* system frequency up to 151 MHz.
* @note To update the system clock frequency(SYSCLK):
* - Set the HSI or HSE as system clock frequency using the HAL_RCC_ClockConfig().
* - Call the HAL_RCC_OscConfig() to configure the PLL.
* - Call HAL_PWREx_ConfigVoltageScaling() API to adjust the voltage scale.
* - Set the new system clock frequency using the HAL_RCC_ClockConfig().
* @note The scale can be modified only when the HSI or HSE clock source is selected
* as system clock source, otherwise the API returns HAL_ERROR.
* @note When the PLL is OFF, the voltage scale 3 is automatically selected and the VOS bits
* value in the PWR_CR1 register are not taken in account.
* @note This API forces the PLL state ON to allow the possibility to configure the voltage scale 1 or 2.
* @note The new voltage scale is active only when the PLL is ON.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_PWREx_ControlVoltageScaling(uint32_t VoltageScaling)
{
uint32_t tickstart = 0;
assert_param(IS_PWR_REGULATOR_VOLTAGE(VoltageScaling));
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Check if the PLL is used as system clock or not */
if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL)
{
/* Disable the main PLL */
__HAL_RCC_PLL_DISABLE();
/* Get Start Tick */
tickstart = HAL_GetTick();
/* Wait till PLL is disabled */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
{
if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Set Range */
__HAL_PWR_VOLTAGESCALING_CONFIG(VoltageScaling);
/* Enable the main PLL */
__HAL_RCC_PLL_ENABLE();
/* Get Start Tick */
tickstart = HAL_GetTick();
/* Wait till PLL is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
{
if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Get Start Tick */
tickstart = HAL_GetTick();
while((__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY) == RESET))
{
if((HAL_GetTick() - tickstart ) > PWR_VOSRDY_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
else
{
return HAL_ERROR;
}
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_PWR_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/

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@ -0,0 +1,770 @@
/**
******************************************************************************
* @file stm32f7xx_hal_uart_ex.c
* @author MCD Application Team
* @brief Extended UART HAL module driver.
* This file provides firmware functions to manage the following extended
* functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
* + Initialization and de-initialization functions
* + Peripheral Control functions
*
*
******************************************************************************
* @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
==============================================================================
##### UART peripheral extended features #####
==============================================================================
(#) Declare a UART_HandleTypeDef handle structure.
(#) For the UART RS485 Driver Enable mode, initialize the UART registers
by calling the HAL_RS485Ex_Init() API.
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @defgroup UARTEx UARTEx
* @brief UART Extended HAL module driver
* @{
*/
#ifdef HAL_UART_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup UARTEx_Private_Functions UARTEx Private Functions
* @{
*/
#if defined(USART_CR1_UESM)
static void UARTEx_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection);
#endif /* USART_CR1_UESM */
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup UARTEx_Exported_Functions UARTEx Exported Functions
* @{
*/
/** @defgroup UARTEx_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Extended Initialization and Configuration Functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
in asynchronous mode.
(+) For the asynchronous mode the parameters below can be configured:
(++) Baud Rate
(++) Word Length
(++) Stop Bit
(++) Parity: If the parity is enabled, then the MSB bit of the data written
in the data register is transmitted but is changed by the parity bit.
(++) Hardware flow control
(++) Receiver/transmitter modes
(++) Over Sampling Method
(++) One-Bit Sampling Method
(+) For the asynchronous mode, the following advanced features can be configured as well:
(++) TX and/or RX pin level inversion
(++) data logical level inversion
(++) RX and TX pins swap
(++) RX overrun detection disabling
(++) DMA disabling on RX error
(++) MSB first on communication line
(++) auto Baud rate detection
[..]
The HAL_RS485Ex_Init() API follows the UART RS485 mode configuration
procedures (details for the procedures are available in reference manual).
@endverbatim
Depending on the frame length defined by the M1 and M0 bits (7-bit,
8-bit or 9-bit), the possible UART formats are listed in the
following table.
Table 1. UART frame format.
+-----------------------------------------------------------------------+
| M1 bit | M0 bit | PCE bit | UART frame |
|---------|---------|-----------|---------------------------------------|
| 0 | 0 | 0 | | SB | 8 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 0 | 1 | | SB | 7 bit data | PB | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 1 | 0 | | SB | 9 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 1 | 1 | | SB | 8 bit data | PB | STB | |
|---------|---------|-----------|---------------------------------------|
| 1 | 0 | 0 | | SB | 7 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 1 | 0 | 1 | | SB | 6 bit data | PB | STB | |
+-----------------------------------------------------------------------+
* @{
*/
/**
* @brief Initialize the RS485 Driver enable feature according to the specified
* parameters in the UART_InitTypeDef and creates the associated handle.
* @param huart UART handle.
* @param Polarity Select the driver enable polarity.
* This parameter can be one of the following values:
* @arg @ref UART_DE_POLARITY_HIGH DE signal is active high
* @arg @ref UART_DE_POLARITY_LOW DE signal is active low
* @param AssertionTime Driver Enable assertion time:
* 5-bit value defining the time between the activation of the DE (Driver Enable)
* signal and the beginning of the start bit. It is expressed in sample time
* units (1/8 or 1/16 bit time, depending on the oversampling rate)
* @param DeassertionTime Driver Enable deassertion time:
* 5-bit value defining the time between the end of the last stop bit, in a
* transmitted message, and the de-activation of the DE (Driver Enable) signal.
* It is expressed in sample time units (1/8 or 1/16 bit time, depending on the
* oversampling rate).
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime,
uint32_t DeassertionTime)
{
uint32_t temp;
/* Check the UART handle allocation */
if (huart == NULL)
{
return HAL_ERROR;
}
/* Check the Driver Enable UART instance */
assert_param(IS_UART_DRIVER_ENABLE_INSTANCE(huart->Instance));
/* Check the Driver Enable polarity */
assert_param(IS_UART_DE_POLARITY(Polarity));
/* Check the Driver Enable assertion time */
assert_param(IS_UART_ASSERTIONTIME(AssertionTime));
/* Check the Driver Enable deassertion time */
assert_param(IS_UART_DEASSERTIONTIME(DeassertionTime));
if (huart->gState == HAL_UART_STATE_RESET)
{
/* Allocate lock resource and initialize it */
huart->Lock = HAL_UNLOCKED;
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
UART_InitCallbacksToDefault(huart);
if (huart->MspInitCallback == NULL)
{
huart->MspInitCallback = HAL_UART_MspInit;
}
/* Init the low level hardware */
huart->MspInitCallback(huart);
#else
/* Init the low level hardware : GPIO, CLOCK, CORTEX */
HAL_UART_MspInit(huart);
#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */
}
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
/* Set the UART Communication parameters */
if (UART_SetConfig(huart) == HAL_ERROR)
{
return HAL_ERROR;
}
if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
{
UART_AdvFeatureConfig(huart);
}
/* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */
SET_BIT(huart->Instance->CR3, USART_CR3_DEM);
/* Set the Driver Enable polarity */
MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, Polarity);
/* Set the Driver Enable assertion and deassertion times */
temp = (AssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS);
temp |= (DeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS);
MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT | USART_CR1_DEAT), temp);
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
return (UART_CheckIdleState(huart));
}
/**
* @}
*/
/** @defgroup UARTEx_Exported_Functions_Group3 Peripheral Control functions
* @brief Extended Peripheral Control functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..] This section provides the following functions:
(+) HAL_UARTEx_EnableClockStopMode() API enables the UART clock (HSI or LSE only) during stop mode
(+) HAL_UARTEx_DisableClockStopMode() API disables the above functionality
(+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address
detection length to more than 4 bits for multiprocessor address mark wake up.
#if defined(USART_CR1_UESM)
(+) HAL_UARTEx_StopModeWakeUpSourceConfig() API defines the wake-up from stop mode
trigger: address match, Start Bit detection or RXNE bit status.
(+) HAL_UARTEx_EnableStopMode() API enables the UART to wake up the MCU from stop mode
(+) HAL_UARTEx_DisableStopMode() API disables the above functionality
#endif
[..] This subsection also provides a set of additional functions providing enhanced reception
services to user. (For example, these functions allow application to handle use cases
where number of data to be received is unknown).
(#) Compared to standard reception services which only consider number of received
data elements as reception completion criteria, these functions also consider additional events
as triggers for updating reception status to caller :
(+) Detection of inactivity period (RX line has not been active for a given period).
(++) RX inactivity detected by IDLE event, i.e. RX line has been in idle state (normally high state)
for 1 frame time, after last received byte.
(++) RX inactivity detected by RTO, i.e. line has been in idle state
for a programmable time, after last received byte.
(+) Detection that a specific character has been received.
(#) There are two mode of transfer:
(+) Blocking mode: The reception is performed in polling mode, until either expected number of data is received,
or till IDLE event occurs. Reception is handled only during function execution.
When function exits, no data reception could occur. HAL status and number of actually received data elements,
are returned by function after finishing transfer.
(+) Non-Blocking mode: The reception is performed using Interrupts or DMA.
These API's return the HAL status.
The end of the data processing will be indicated through the
dedicated UART IRQ when using Interrupt mode or the DMA IRQ when using DMA mode.
The HAL_UARTEx_RxEventCallback() user callback will be executed during Receive process
The HAL_UART_ErrorCallback()user callback will be executed when a reception error is detected.
(#) Blocking mode API:
(+) HAL_UARTEx_ReceiveToIdle()
(#) Non-Blocking mode API with Interrupt:
(+) HAL_UARTEx_ReceiveToIdle_IT()
(#) Non-Blocking mode API with DMA:
(+) HAL_UARTEx_ReceiveToIdle_DMA()
@endverbatim
* @{
*/
#if defined(USART_CR3_UCESM)
/**
* @brief Keep UART Clock enabled when in Stop Mode.
* @note When the USART clock source is configured to be LSE or HSI, it is possible to keep enabled
* this clock during STOP mode by setting the UCESM bit in USART_CR3 control register.
* @note When LPUART is used to wakeup from stop with LSE is selected as LPUART clock source,
* and desired baud rate is 9600 baud, the bit UCESM bit in LPUART_CR3 control register must be set.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Set UCESM bit */
ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_UCESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief Disable UART Clock when in Stop Mode.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Clear UCESM bit */
ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_UCESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
#endif /* USART_CR3_UCESM */
/**
* @brief By default in multiprocessor mode, when the wake up method is set
* to address mark, the UART handles only 4-bit long addresses detection;
* this API allows to enable longer addresses detection (6-, 7- or 8-bit
* long).
* @note Addresses detection lengths are: 6-bit address detection in 7-bit data mode,
* 7-bit address detection in 8-bit data mode, 8-bit address detection in 9-bit data mode.
* @param huart UART handle.
* @param AddressLength This parameter can be one of the following values:
* @arg @ref UART_ADDRESS_DETECT_4B 4-bit long address
* @arg @ref UART_ADDRESS_DETECT_7B 6-, 7- or 8-bit long address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength)
{
/* Check the UART handle allocation */
if (huart == NULL)
{
return HAL_ERROR;
}
/* Check the address length parameter */
assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength));
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
/* Set the address length */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength);
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* TEACK and/or REACK to check before moving huart->gState to Ready */
return (UART_CheckIdleState(huart));
}
#if defined(USART_CR1_UESM)
/**
* @brief Set Wakeup from Stop mode interrupt flag selection.
* @note It is the application responsibility to enable the interrupt used as
* usart_wkup interrupt source before entering low-power mode.
* @param huart UART handle.
* @param WakeUpSelection Address match, Start Bit detection or RXNE/RXFNE bit status.
* This parameter can be one of the following values:
* @arg @ref UART_WAKEUP_ON_ADDRESS
* @arg @ref UART_WAKEUP_ON_STARTBIT
* @arg @ref UART_WAKEUP_ON_READDATA_NONEMPTY
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t tickstart;
/* check the wake-up from stop mode UART instance */
assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
/* check the wake-up selection parameter */
assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent));
/* Process Locked */
__HAL_LOCK(huart);
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
#if defined(USART_CR3_WUS)
/* Set the wake-up selection scheme */
MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent);
#endif /* USART_CR3_WUS */
if (WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS)
{
UARTEx_Wakeup_AddressConfig(huart, WakeUpSelection);
}
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* Init tickstart for timeout management */
tickstart = HAL_GetTick();
/* Wait until REACK flag is set */
if (UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
{
status = HAL_TIMEOUT;
}
else
{
/* Initialize the UART State */
huart->gState = HAL_UART_STATE_READY;
}
/* Process Unlocked */
__HAL_UNLOCK(huart);
return status;
}
/**
* @brief Enable UART Stop Mode.
* @note The UART is able to wake up the MCU from Stop 1 mode as long as UART clock is HSI or LSE.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Set UESM bit */
ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_UESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief Disable UART Stop Mode.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Clear UESM bit */
ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_UESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
#endif /* USART_CR1_UESM */
/**
* @brief Receive an amount of data in blocking mode till either the expected number of data
* is received or an IDLE event occurs.
* @note HAL_OK is returned if reception is completed (expected number of data has been received)
* or if reception is stopped after IDLE event (less than the expected number of data has been received)
* In this case, RxLen output parameter indicates number of data available in reception buffer.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @param RxLen Number of data elements finally received
* (could be lower than Size, in case reception ends on IDLE event)
* @param Timeout Timeout duration expressed in ms (covers the whole reception sequence).
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen,
uint32_t Timeout)
{
uint8_t *pdata8bits;
uint16_t *pdata16bits;
uint16_t uhMask;
uint32_t tickstart;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
__HAL_LOCK(huart);
huart->ErrorCode = HAL_UART_ERROR_NONE;
huart->RxState = HAL_UART_STATE_BUSY_RX;
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
/* Init tickstart for timeout management */
tickstart = HAL_GetTick();
huart->RxXferSize = Size;
huart->RxXferCount = Size;
/* Computation of UART mask to apply to RDR register */
UART_MASK_COMPUTATION(huart);
uhMask = huart->Mask;
/* In case of 9bits/No Parity transfer, pRxData needs to be handled as a uint16_t pointer */
if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
{
pdata8bits = NULL;
pdata16bits = (uint16_t *) pData;
}
else
{
pdata8bits = pData;
pdata16bits = NULL;
}
__HAL_UNLOCK(huart);
/* Initialize output number of received elements */
*RxLen = 0U;
/* as long as data have to be received */
while (huart->RxXferCount > 0U)
{
/* Check if IDLE flag is set */
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE))
{
/* Clear IDLE flag in ISR */
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
/* If Set, but no data ever received, clear flag without exiting loop */
/* If Set, and data has already been received, this means Idle Event is valid : End reception */
if (*RxLen > 0U)
{
huart->RxState = HAL_UART_STATE_READY;
return HAL_OK;
}
}
/* Check if RXNE flag is set */
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE))
{
if (pdata8bits == NULL)
{
*pdata16bits = (uint16_t)(huart->Instance->RDR & uhMask);
pdata16bits++;
}
else
{
*pdata8bits = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
pdata8bits++;
}
/* Increment number of received elements */
*RxLen += 1U;
huart->RxXferCount--;
}
/* Check for the Timeout */
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
huart->RxState = HAL_UART_STATE_READY;
return HAL_TIMEOUT;
}
}
}
/* Set number of received elements in output parameter : RxLen */
*RxLen = huart->RxXferSize - huart->RxXferCount;
/* At end of Rx process, restore huart->RxState to Ready */
huart->RxState = HAL_UART_STATE_READY;
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Receive an amount of data in interrupt mode till either the expected number of data
* is received or an IDLE event occurs.
* @note Reception is initiated by this function call. Further progress of reception is achieved thanks
* to UART interrupts raised by RXNE and IDLE events. Callback is called at end of reception indicating
* number of received data elements.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
{
HAL_StatusTypeDef status;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
__HAL_LOCK(huart);
/* Set Reception type to reception till IDLE Event*/
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
status = UART_Start_Receive_IT(huart, pData, Size);
/* Check Rx process has been successfully started */
if (status == HAL_OK)
{
if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE)
{
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_IDLEIE);
}
else
{
/* In case of errors already pending when reception is started,
Interrupts may have already been raised and lead to reception abortion.
(Overrun error for instance).
In such case Reception Type has been reset to HAL_UART_RECEPTION_STANDARD. */
status = HAL_ERROR;
}
}
return status;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Receive an amount of data in DMA mode till either the expected number
* of data is received or an IDLE event occurs.
* @note Reception is initiated by this function call. Further progress of reception is achieved thanks
* to DMA services, transferring automatically received data elements in user reception buffer and
* calling registered callbacks at half/end of reception. UART IDLE events are also used to consider
* reception phase as ended. In all cases, callback execution will indicate number of received data elements.
* @note When the UART parity is enabled (PCE = 1), the received data contain
* the parity bit (MSB position).
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
{
HAL_StatusTypeDef status;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
__HAL_LOCK(huart);
/* Set Reception type to reception till IDLE Event*/
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
status = UART_Start_Receive_DMA(huart, pData, Size);
/* Check Rx process has been successfully started */
if (status == HAL_OK)
{
if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE)
{
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_IDLEIE);
}
else
{
/* In case of errors already pending when reception is started,
Interrupts may have already been raised and lead to reception abortion.
(Overrun error for instance).
In such case Reception Type has been reset to HAL_UART_RECEPTION_STANDARD. */
status = HAL_ERROR;
}
}
return status;
}
else
{
return HAL_BUSY;
}
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup UARTEx_Private_Functions
* @{
*/
#if defined(USART_CR1_UESM)
/**
* @brief Initialize the UART wake-up from stop mode parameters when triggered by address detection.
* @param huart UART handle.
* @param WakeUpSelection UART wake up from stop mode parameters.
* @retval None
*/
static void UARTEx_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength));
/* Set the USART address length */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength);
/* Set the USART address node */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS));
}
#endif /* USART_CR1_UESM */
/**
* @}
*/
#endif /* HAL_UART_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/