/********************************** (C) COPYRIGHT *******************************
 * File Name          : ch32v20x_it.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2021/06/06
 * Description        : Main Interrupt Service Routines.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "ch32v20x_it.h"
#include "UART.h"

void NMI_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void HardFault_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void TIM2_IRQHandler( void )__attribute__((interrupt("WCH-Interrupt-fast")));

/*********************************************************************
 * @fn      NMI_Handler
 *
 * @brief   This function handles NMI exception.
 *
 * @return  none
 */
void NMI_Handler(void)
{
  while (1)
  {
  }
}

/*********************************************************************
 * @fn      TIM2_IRQHandler
 *
 * @brief   This function handles TIM2 exception.
 *
 * @return  none
 */
void TIM2_IRQHandler( void )
{
    /* Test IO */
    static uint8_t tog;
    tog ? (GPIOA->BSHR = GPIO_Pin_15):(GPIOA->BCR = GPIO_Pin_15);
    tog ^= 1;
    /* uart timeout counts */
    Uart.Rx_TimeOut++;
    Uart.USB_Up_TimeOut++;

    /* clear status */
    TIM2->INTFR = (uint16_t)~TIM_IT_Update;
}

/*********************************************************************
 * @fn      HardFault_Handler
 *
 * @brief   This function handles Hard Fault exception.
 *
 * @return  none
 */
void HardFault_Handler(void)
{
  while (1)
  {
  }
}