关于按键中断的问题

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楼主

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楼主 | 2020-4-27 07:14 | 只看该作者回帖奖励

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LED, se, TI, include, BSP

#include &quot;stm32f10x_it.h&quot;
#include &quot;bsp_led.h&quot;
#include &quot;bsp_exti.h&quot;
extern char i;

//中断服务函数
void KEY1_IRQHandler(void)
{
      if(EXTI_GetITStatus(KEY1_INT_EXTI_LINE) != RESET)
      {
            switch(i)
            {
                     case 0: LED_RED;    break; //红
                     case 1: LED_GREEN; break; //绿
                     case 2: LED_BLUE; break; //蓝
                     case 3: LED_YELLOW;  break;    //黄(红+绿)
                     case 4: LED_PURPLE;  break;    //紫(红+蓝)
                     case 5: LED_CYAN; break; //青(绿+蓝)
                     case 6: LED_WHITE; break; //白(红+绿+蓝)
                  default:  LED_RGBOFF;  break; //黑(全部关闭)
            }
            i=(i++)%7;
            EXTI_ClearITPendingBit(KEY1_INT_EXTI_LINE);
      }
}

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