STM32F0xx_StdPeriph_Examples/RTC/RTC_LSI/stm32f0xx_it.c

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/**
  ******************************************************************************
  * @file    RTC/RTC_LSI/stm32f0xx_it.c 
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    24-July-2014
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and 
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_it.h"

/** @addtogroup STM32F0xx_StdPeriph_Examples
  * @{
  */

/** @addtogroup RTC_LSI
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern __IO uint32_t CaptureNumber, PeriodValue;
uint32_t IC1ReadValue1 = 0, IC1ReadValue2 =0;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M0 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 SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_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)
{
}

/******************************************************************************/
/*                 STM32F0xx Peripherals Interrupt Handlers                   */
/******************************************************************************/
/**
  * @brief  This function handles TIM14 global interrupt request.
  * @param  None
  * @retval None
  */
void TIM14_IRQHandler(void)
{
  if (TIM_GetITStatus(TIM14, TIM_IT_CC1) != RESET)
  {
    /* Clear TIM14 Capture Compare 1 interrupt pending bit */
    TIM_ClearITPendingBit(TIM14, TIM_IT_CC1);
    
    if(CaptureNumber == 0)
    {
      /* Get the Input Capture value */
      IC1ReadValue1 = TIM_GetCapture1(TIM14);
      CaptureNumber = 1;
    }
    else if(CaptureNumber == 1)
    {
       /* Get the Input Capture value */
       IC1ReadValue2 = TIM_GetCapture1(TIM14); 
       TIM_ITConfig(TIM14, TIM_IT_CC1, DISABLE);

       /* Capture computation */
       if (IC1ReadValue2 > IC1ReadValue1)
       {
         PeriodValue = (IC1ReadValue2 - IC1ReadValue1);
       }
       else
       {
         PeriodValue = ((0xFFFF - IC1ReadValue1) + IC1ReadValue2);
       }
       /* capture of two values is done */
       CaptureNumber = 2;
    }
  }
}

/**
  * @brief  This function handles RTC Wakeup global interrupt request.
  * @param  None
  * @retval None
  */
void RTC_IRQHandler(void)
{
  if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
  {
    RTC_TimeTypeDef RTC_TimeStructure;
    /* Toggle on LED1 */
    STM_EVAL_LEDToggle(LED1);
    
    /* Set the time to 00h 00mn 00s AM */
    RTC_TimeStructure.RTC_H12     = RTC_H12_AM;
    RTC_TimeStructure.RTC_Hours   = 0x00;
    RTC_TimeStructure.RTC_Minutes = 0x00;
    RTC_TimeStructure.RTC_Seconds = 0x00;  
  
    RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure);
    
    RTC_ClearITPendingBit(RTC_IT_ALRA);
    EXTI_ClearITPendingBit(EXTI_Line17);
  } 
}

/******************************************************************************/
/*                 STM32F0xx 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_stm32f0xx.s).                                               */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/