GD32F3x0_Firmware_Library/Examples/USART/Deepsleep_wakeup/gd32f3x0_it.c

/*!
    \file  gd32f3x0_it.c
    \brief interrupt service routines
*/

/*
    Copyright (C) 2017 GigaDevice

    2017-06-06, V1.0.0, firmware for GD32F3x0
*/


#include "gd32f3x0_it.h"
#include "gd32f3x0_eval.h"

__IO uint8_t counter0 = 0x00;
__IO uint8_t counter1 = 0;
extern void LED_Spark(void);

/*!
    \brief      this function handles NMI exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void NMI_Handler(void)
{
}

/*!
    \brief      this function handles HardFault exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void HardFault_Handler(void)
{
    /* if Hard Fault exception occurs, go to infinite loop */
    while (1);
}

/*!
    \brief      this function handles MemManage exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void MemManage_Handler(void)
{
    /* if Memory Manage exception occurs, go to infinite loop */
    while (1);
}

/*!
    \brief      this function handles BusFault exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void BusFault_Handler(void)
{
    /* if Bus Fault exception occurs, go to infinite loop */
    while (1);
}

/*!
    \brief      this function handles UsageFault exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void UsageFault_Handler(void)
{
    /* if Usage Fault exception occurs, go to infinite loop */
    while (1);
}

/*!
    \brief      this function handles SVC exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void SVC_Handler(void)
{
}

/*!
    \brief      this function handles DebugMon exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void DebugMon_Handler(void)
{
}

/*!
    \brief      this function handles PendSV exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void PendSV_Handler(void)
{
}

/*!
    \brief      this function handles SysTick exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void SysTick_Handler(void)
{  
    if (counter1 == 20){
        LED_Spark();
        /* Reset Counter */
        counter1 = 0;
    }else{
        /* increment Counter */
        counter1++; 
    }
}

/*!
    \brief      this function handles USART wakeup from deepsleep interrupt request
    \param[in]  none
    \param[out] none
    \retval     none
*/
void USART0_IRQHandler(void)
{
    if (SET == usart_interrupt_flag_get(EVAL_COM1, USART_INT_FLAG_WU)){ 
        usart_flag_clear(EVAL_COM1, USART_FLAG_WU);
        counter0 = 0x01;
    }
}