用外部中断与定时器实现了按键的长按、短按、双击功能。附代码。短按实现多个功能请教

只看该作者 · 2017-9-12 18:02

我用外部中断与定时器实现了按键的长按、短按、双击功能。附代码。长按对应一个功能，双击对应一个功能，短按想对应三四个功能，按一下标志位=1，执行一次功能，再按一下，标志位变为2，执行另一个功能，麻烦给看看怎么实现？

只看该作者 · 2017-9-12 18:02

void TIM2_IRQHandler(void)
{
// if ( TIM_GetITStatus(TIM2 , TIM_IT_Update) != RESET )
// {
// TIM_ClearITPendingBit(TIM2 , TIM_FLAG_Update);
//       Time_Press++;
// }

if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
{
      if(Key_Press == 1)  //·￠éú°′?ü°′??ê??t
      {
         if(GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_13) == 0 ) //°′?ü3?D?°′??
         {
            if(Time_Press <= 800)
               {
                  Time_Press++;
               }
               else  //°′?ü°′??μ?2000ms?í?D??3¤°′ê??t3éá￠￡?éú3é3¤°′±ê??
               {
               Time_Press = 0;
               Key_Press_Short = 0;  //??3y?ì°′±ê??
               Key_Press_Long = 1; //3¤°′±ê??????
               Key_Press = 0;       //??°′?ü°′??±ê??
               }
         }
      else  //°′?üì§?e
      {
            if(Time_Press > 20)  //°′??ê±??′óóú50mséú3éμ￥?÷±ê??
            {
               Time_Press = 0;
               Key_Press_Short = 1;
               Key_Press_Long = 0;
               Key_Press = 0;

Time_Press_Short_Flag++;
Time_Press_Short_Flag%=4;

               if((Time_Press_Double >100) && (Time_Press_Double <500)) //?àà?é?′?μ￥?÷ê±???ú100-500ms????￡??òè??a·￠éúá??÷ê??t
               {
                     Key_Press_Double = 1;
                     Key_Press_Short = 0;
   Time_Press_Short_Flag = Time_Press_Short_Flag - 1;
               }
               Time_Press_Double_Flag = 1;

printf("SF is %d\n",Time_Press_Short_Flag);
            }
            else
               {
                     Time_Press=0;
                     Key_Press_Short = 0;
                     Key_Press_Long = 0;
                     Key_Press = 0;
               }
      }

      }
if(Time_Press_Double_Flag)

      Time_Press_Double++;

if(Time_Press_Double > 500)
   {
      Time_Press_Double = 0;
      Time_Press_Double_Flag = 0;
   }

}

      TIM_ClearITPendingBit(TIM2 , TIM_FLAG_Update);

}