path: root/Projects/P-NUCLEO-WB55.Nucleo/Examples_LL/I2C/I2C_OneBoard_AdvCommunication_DMAAndIT_Init/Src/stm32wbxx_it.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    Examples_LL/I2C/I2C_OneBoard_AdvCommunication_DMAAndIT_Init/Src/stm32wbxx_it.c
  * @author  MCD Application Team
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics. 
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the 
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32wbxx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */

/* USER CODE END TD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
 
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* External variables --------------------------------------------------------*/

/* USER CODE BEGIN EV */

/* USER CODE END EV */

/******************************************************************************/
/*           Cortex Processor Interruption and Exception Handlers          */ 
/******************************************************************************/
/**
  * @brief This function handles Non maskable interrupt.
  */
void NMI_Handler(void)
{
  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */

  /* USER CODE END NonMaskableInt_IRQn 0 */
  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */

  /* USER CODE END NonMaskableInt_IRQn 1 */
}

/**
  * @brief This function handles Hard fault interrupt.
  */
void HardFault_Handler(void)
{
  /* USER CODE BEGIN HardFault_IRQn 0 */

  /* USER CODE END HardFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_HardFault_IRQn 0 */
    /* USER CODE END W1_HardFault_IRQn 0 */
  }
}

/**
  * @brief This function handles Memory management fault.
  */
void MemManage_Handler(void)
{
  /* USER CODE BEGIN MemoryManagement_IRQn 0 */

  /* USER CODE END MemoryManagement_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
    /* USER CODE END W1_MemoryManagement_IRQn 0 */
  }
}

/**
  * @brief This function handles Prefetch fault, memory access fault.
  */
void BusFault_Handler(void)
{
  /* USER CODE BEGIN BusFault_IRQn 0 */

  /* USER CODE END BusFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_BusFault_IRQn 0 */
    /* USER CODE END W1_BusFault_IRQn 0 */
  }
}

/**
  * @brief This function handles Undefined instruction or illegal state.
  */
void UsageFault_Handler(void)
{
  /* USER CODE BEGIN UsageFault_IRQn 0 */

  /* USER CODE END UsageFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_UsageFault_IRQn 0 */
    /* USER CODE END W1_UsageFault_IRQn 0 */
  }
}

/**
  * @brief This function handles System service call via SWI instruction.
  */
void SVC_Handler(void)
{
  /* USER CODE BEGIN SVCall_IRQn 0 */

  /* USER CODE END SVCall_IRQn 0 */
  /* USER CODE BEGIN SVCall_IRQn 1 */

  /* USER CODE END SVCall_IRQn 1 */
}

/**
  * @brief This function handles Debug monitor.
  */
void DebugMon_Handler(void)
{
  /* USER CODE BEGIN DebugMonitor_IRQn 0 */

  /* USER CODE END DebugMonitor_IRQn 0 */
  /* USER CODE BEGIN DebugMonitor_IRQn 1 */

  /* USER CODE END DebugMonitor_IRQn 1 */
}

/**
  * @brief This function handles Pendable request for system service.
  */
void PendSV_Handler(void)
{
  /* USER CODE BEGIN PendSV_IRQn 0 */

  /* USER CODE END PendSV_IRQn 0 */
  /* USER CODE BEGIN PendSV_IRQn 1 */

  /* USER CODE END PendSV_IRQn 1 */
}

/**
  * @brief This function handles System tick timer.
  */
void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */

  /* USER CODE END SysTick_IRQn 0 */
  
  /* USER CODE BEGIN SysTick_IRQn 1 */

  /* USER CODE END SysTick_IRQn 1 */
}

/******************************************************************************/
/* STM32WBxx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32wbxx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles EXTI line4 interrupt.
  */
void EXTI4_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI4_IRQn 0 */

  /* USER CODE END EXTI4_IRQn 0 */
  if (LL_EXTI_IsActiveFlag_0_31(LL_EXTI_LINE_4) != RESET)
  {
    LL_EXTI_ClearFlag_0_31(LL_EXTI_LINE_4);
    /* USER CODE BEGIN LL_EXTI_LINE_4 */
    
    /* Manage code in main.c.*/
    UserButton_Callback(); 
    /* USER CODE END LL_EXTI_LINE_4 */
  }
  /* USER CODE BEGIN EXTI4_IRQn 1 */

  /* USER CODE END EXTI4_IRQn 1 */
}

/**
  * @brief This function handles DMA1 channel2 global interrupt.
  */
void DMA1_Channel2_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel2_IRQn 0 */
if(LL_DMA_IsActiveFlag_TC2(DMA1))
  {
    LL_DMA_ClearFlag_GI2(DMA1);
    Transfer_Complete_Callback();
  }
  else if(LL_DMA_IsActiveFlag_TE2(DMA1))
  {
    Transfer_Error_Callback();
  }
  /* USER CODE END DMA1_Channel2_IRQn 0 */
  
  /* USER CODE BEGIN DMA1_Channel2_IRQn 1 */

  /* USER CODE END DMA1_Channel2_IRQn 1 */
}

/**
  * @brief This function handles DMA1 channel3 global interrupt.
  */
void DMA1_Channel3_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel3_IRQn 0 */
if(LL_DMA_IsActiveFlag_TC3(DMA1))
  {
    LL_DMA_ClearFlag_GI3(DMA1);
    Transfer_Complete_Callback();
  }
  else if(LL_DMA_IsActiveFlag_TE3(DMA1))
  {
    Transfer_Error_Callback();
  }
  /* USER CODE END DMA1_Channel3_IRQn 0 */
  
  /* USER CODE BEGIN DMA1_Channel3_IRQn 1 */

  /* USER CODE END DMA1_Channel3_IRQn 1 */
}

/* USER CODE BEGIN 1 */

/******************************************************************************/
/*                 STM32WBxx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32wbxx.s).                                               */
/******************************************************************************/


/**
  * Brief   This function handles I2C1 (Slave) event interrupt request.
  * Param   None
  * Retval  None
  */
void I2C1_EV_IRQHandler(void)
{
  /* Check ADDR flag value in ISR register */
  if(LL_I2C_IsActiveFlag_ADDR(I2C1))
  {
    /* Verify the Address Match with the OWN Slave address */
    if(LL_I2C_GetAddressMatchCode(I2C1) == SLAVE_OWN_ADDRESS)
    {
      /* Verify the transfer direction, a write direction, Slave enters receiver mode */
      if(LL_I2C_GetTransferDirection(I2C1) == LL_I2C_DIRECTION_WRITE)
      {
        /* Clear ADDR flag value in ISR register */
        LL_I2C_ClearFlag_ADDR(I2C1);

        /* Enable Receive Interrupt */
        LL_I2C_EnableIT_RX(I2C1);
      }
      else if(LL_I2C_GetTransferDirection(I2C1) == LL_I2C_DIRECTION_READ)
      {
        /* Clear ADDR flag value in ISR register */
        LL_I2C_ClearFlag_ADDR(I2C1);

        /* Enable Transmit Interrupt */
        LL_I2C_EnableIT_TX(I2C1);
      }
    }
    else
    {
      /* Clear ADDR flag value in ISR register */
      LL_I2C_ClearFlag_ADDR(I2C1);
        
      /* Call Error function */
      Error_Callback();
    }
  }
  /* Check NACK flag value in ISR register */
  else if(LL_I2C_IsActiveFlag_NACK(I2C1))
  {
    /* End of Transfer */
    LL_I2C_ClearFlag_NACK(I2C1);
  }
  /* Check RXNE flag value in ISR register */
  else if(LL_I2C_IsActiveFlag_RXNE(I2C1))
  {
    /* Call function Slave Reception Callback */
    Slave_Reception_Callback();
  }
  /* Check TXIS flag value in ISR register */
  else if(LL_I2C_IsActiveFlag_TXIS(I2C1))
  {
    /* Call function Slave Ready to Transmit Callback */
    Slave_Ready_To_Transmit_Callback();
  }
  /* Check STOP flag value in ISR register */
  else if(LL_I2C_IsActiveFlag_STOP(I2C1))
  {
    /* End of Transfer */
    LL_I2C_ClearFlag_STOP(I2C1);
    
    /* Check TXE flag value in ISR register */
    if(!LL_I2C_IsActiveFlag_TXE(I2C1))
    {
      /* Flush TX buffer */
      LL_I2C_ClearFlag_TXE(I2C1);
    }

    /* Call function Slave Complete Callback */
    Slave_Complete_Callback();
  }
  /* Check TXE flag value in ISR register */
  else if(!LL_I2C_IsActiveFlag_TXE(I2C1))
  {
    /* Do nothing */
    /* This Flag will be set by hardware when the TXDR register is empty */
    /* If needed, use LL_I2C_ClearFlag_TXE() interface to flush the TXDR register  */
  }
  else
  {
    /* Call Error function */
    Error_Callback();
  }
}

/**
  * Brief   This function handles I2C1 (Slave) error interrupt request.
  * Param   None
  * Retval  None
  */
void I2C1_ER_IRQHandler(void)
{
  /* Call Error function */
  Error_Callback();
}


/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/