STM8L151C8 MCU learning routine (6) - External interrupt rising edge trigger

STM8L_6_EXIT：

1.User: Project and main files

2.Hardware：EXIT,CLK,LED,Delay

3.STM8L15x_StdPeriph_Driver: STM8 comes with library files

4.Debug: The hex file is stored in the EXE folder

5.Function: External interrupt rising edge trigger, flip LED

/**

******************************************************************************

* @file    main.c

* @author  Alex——Xiaobai

* @version V1.0

* @date    2019.5.1

* @brief    External interruption lighting

* @store    has a Proteus simulation store

* @Link    https://shop484534014.taobao.com/

* @Email 844545015@qq.com

******************************************************************************

* @attention All Rights Reserved  

**/

#include "stm8l15x.h"

#include "LED.h"

#include "Delay.h"

#include "CLK.h"

#include "EXIT.h"

void main(void)

{

    CLK_HSI_Config(CLK_SYSCLKDiv_1);    //HSI 1分频 16MHz

    LED_Init();                         //LED FLash

    EXIT_Init();

    enableInterrupts();

    while(1)

    {

    }

}

INTERRUPT_HANDLER(EXTI3_IRQHandler,11)

{

    /* In order to detect unexpected events during development,

       it is recommended to set a breakpoint on the following instruction.

    */

    if(GPIO_ReadInputDataBit(KEY_IOPORT,GPIO_Pin_3) == RESET) //If there is another pin 3, such as PA3, you can use if again to determine whether PA3 is 0 to distinguish PD3

    {

        Delay(0x7FFF); //nearly 10ms

        if(GPIO_ReadInputDataBit(KEY_IOPORT,GPIO_Pin_3) == RESET)

        {

            LED0_Toggle();

        }

    }    

    EXTI_ClearITPendingBit(EXTI_IT_Pin3);

}