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/**
******************************************************************************
* @file Examples_LL/USART/USART_SyncCommunication_FullDuplex_IT/Src/stm32f4xx_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
*
* 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 "stm32f4xx_it.h"
/** @addtogroup STM32F4xx_LL_Examples
* @{
*/
/** @addtogroup USART_SyncCommunication_FullDuplex_IT
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M4 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F4xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f4xx.s). */
/******************************************************************************/
/**
* @brief This function handles external line 13 interrupt request.
* @param None
* @retval None
*/
void USER_BUTTON_IRQHANDLER(void)
{
/* Manage Flags */
if(LL_EXTI_IsActiveFlag_0_31(USER_BUTTON_EXTI_LINE) != RESET)
{
LL_EXTI_ClearFlag_0_31(USER_BUTTON_EXTI_LINE);
/* Handle user button press in dedicated function */
UserButton_Callback();
}
}
/**
* Brief This function handles USART1 Instance interrupt request.
* Param None
* Retval None
*/
void USART1_IRQHandler(void)
{
/* Check RXNE flag value in SR register */
if(LL_USART_IsActiveFlag_RXNE(USART1) && LL_USART_IsEnabledIT_RXNE(USART1))
{
/* RXNE flag will be cleared by reading of DR register (done in call) */
/* Call function in charge of handling Character reception */
USART_CharReception_Callback();
}
if(LL_USART_IsEnabledIT_TXE(USART1) && LL_USART_IsActiveFlag_TXE(USART1))
{
/* TXE flag will be automatically cleared when writing new data in DR register */
/* Call function in charge of handling empty DR => will lead to transmission of next character */
USART_TXEmpty_Callback();
}
if(LL_USART_IsEnabledIT_TC(USART1) && LL_USART_IsActiveFlag_TC(USART1))
{
/* Clear TC flag */
LL_USART_ClearFlag_TC(USART1);
/* Call function in charge of handling end of transmission of sent character
and prepare next character transmission */
USART_CharTransmitComplete_Callback();
}
if(LL_USART_IsEnabledIT_ERROR(USART1) && LL_USART_IsActiveFlag_NE(USART1))
{
/* Call Error function */
USART_TransferError_Callback();
}
}
/**
* @brief This function handles DMA2_Stream3 interrupt request.
* @param None
* @retval None
*/
void DMA2_Stream3_IRQHandler(void)
{
if(LL_DMA_IsActiveFlag_TC3(DMA2))
{
LL_DMA_ClearFlag_TC3(DMA2);
/* Call function Transmission complete Callback */
SPI1_DMA2_TransmitComplete_Callback();
}
else if(LL_DMA_IsActiveFlag_TE3(DMA2))
{
/* Call Error function */
SPI_TransferError_Callback();
}
}
/**
* @brief This function handles DMA2_Stream2 interrupt request.
* @param None
* @retval None
*/
void DMA2_Stream2_IRQHandler(void)
{
if(LL_DMA_IsActiveFlag_TC2(DMA2))
{
LL_DMA_ClearFlag_TC2(DMA2);
/* Call function Reception complete Callback */
SPI1_DMA2_ReceiveComplete_Callback();
}
else if(LL_DMA_IsActiveFlag_TE2(DMA2))
{
/* Call Error function */
SPI_TransferError_Callback();
}
}
/**
* @}
*/
/**
* @}
*/
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