/**
  ******************************************************************************
  * @file    PWR/STANDBY/stm32f2xx_it.c 
  * @author  MCD Application Team
  * @version V1.2.0
  * @date    13-April-2012
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and peripherals
  *          interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2012 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 "stm32f2xx_it.h"
#include "stm322xg_eval.h"

/** @addtogroup STM32F2xx_StdPeriph_Examples
  * @{
  */

/** @addtogroup PWR_STANDBY
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
RTC_AlarmTypeDef  RTC_AlarmStructure;
extern RTC_TimeTypeDef   RTC_TimeStructure;

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

/******************************************************************************/
/*            Cortex-M3 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 PendSV_Handler exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
void SysTick_Handler(void)
{
  /* Toggle LED1 */
  STM_EVAL_LEDToggle(LED1);
}

/******************************************************************************/
/*                 STM32F2xx 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_stm32f2xx.s).                                               */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/
 
/**
  * @brief  This function handles External lines 9 to 5 interrupt request.
  * @param  None
  * @retval None
  */
void EXTI15_10_IRQHandler(void)
{
  if(EXTI_GetITStatus(KEY_BUTTON_EXTI_LINE) != RESET)
  {
   
    /* Clear the SEL Button EXTI line pending bit */
    EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE);

    /* Disable the Alarm A */
    RTC_AlarmCmd(RTC_Alarm_A, DISABLE);

    RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);

    /* Set the alarm to current time + 5s */
    RTC_AlarmStructure.RTC_AlarmTime.RTC_H12     = RTC_TimeStructure.RTC_H12;
    RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours   = RTC_TimeStructure.RTC_Hours;
    RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = RTC_TimeStructure.RTC_Minutes;
    RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = (RTC_TimeStructure.RTC_Seconds + 0x5) % 60;
    RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
    RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
    RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay | RTC_AlarmMask_Hours | RTC_AlarmMask_Minutes;
    RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
  
    /* Enable RTC Alarm A Interrupt: this Interrupt will wake-up the system from
       STANDBY mode (RTC Alarm IT not enabled in NVIC) */
    RTC_ITConfig(RTC_IT_ALRA, ENABLE);
  
    /* Enable the Alarm A */
    RTC_AlarmCmd(RTC_Alarm_A, ENABLE);

    /* Clear RTC Alarm Flag */ 
    RTC_ClearFlag(RTC_FLAG_ALRAF);

    /* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
    PWR_EnterSTANDBYMode();
  }
}

/**
  * @}
  */ 

/**
  * @}
  */ 

