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 * All rights reserved.
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 * this list of conditions and the disclaimer below.
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/**
 * @file n32g031_it.c
 * @author ..\readme.txt
 * @version v1.0.0
 *
 * @copyright Copyright (c) 2019, ..\readme.txt Technologies Inc. All rights reserved.
 */
#include "n32g031_it.h"
#include "main.h"
#include "bsp_key.h"

/** @addtogroup N32G031_StdPeriph_Template
 * @{
 */

__IO uint32_t ControlFlag = 0;

extern void Delay(__IO uint32_t nCount);

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
 * @brief  This function handles NMI exception.
 */
void NMI_Handler(void)
{
}

/**
 * @brief  This function handles Hard Fault exception.
 */
void HardFault_Handler(void)
{
    /* Go to infinite loop when Hard Fault exception occurs */
    while (1)
    {
    }
}

/**
 * @brief  This function handles SVCall exception.
 */
void SVC_Handler(void)
{
}

/**
 * @brief  This function handles PendSV_Handler exception.
 */
void PendSV_Handler(void)
{
}

/**
 * @brief  This function handles SysTick Handler.
 */
void SysTick_Handler(void)
{
}

/******************************************************************************/
/*                 N32G031 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_n32g031.s).                                                 */
/******************************************************************************/

/**
 * @brief  This function handles External interrupt Line 0 request.
 */
void EXTI4_15_IRQHandler(void)
{
    Delay(0x2FFFFF);
    if (ControlFlag == 2)
    {
        ControlFlag = 0;
    }

    if (ControlFlag == 0)
    {
        /* Flush DAT register and clear the USARTz RXNE flag */
        USART_ReceiveData(USARTz);
        /* Enable the USARTz mute mode*/
        USART_EnableRcvWakeUp(USARTz, ENABLE);

        ControlFlag = 1;
    }
    else if (ControlFlag == 1)
    {
        /* Send the address mark (0x102) to wakeup USARTz */
        USART_SendData(USARTy, 0x102);
        /* Wait while USARTy TXE = 0 */
        while (USART_GetFlagStatus(USARTy, USART_FLAG_TXDE) == RESET)
        {
        }

        ControlFlag = 2;
    }

    /* Clear Key Button EXTI Line Pending Bit */
    EXTI_ClrITPendBit(KEY1_INT_EXTI_LINE);
}

/**
 * @brief  This function handles PPP interrupt request.
 */
/*void PPP_IRQHandler(void)
{
}*/

/**
 * @}
 */
