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LED 闪烁代码

程序员文章站 2024-03-25 12:55:34
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/*
************************************************************
*	函数名称:	Led1_StateRefresh
*
*	函数功能:	LED1 闪烁,
*
*	入口参数:	ledState:0:不闪烁 ;1:1s闪烁一次 ;2:1s闪烁两次
*
*	返回参数:	无
*
*	说明:		 100ms 调用一次,开关间隔100ms	
************************************************************
*/
static void Led1_StateRefresh(uint8_t ledState)  
{  
#define LED_PERIID_TIME       10    // period 1.0s  
#define LED_LIGHTING_TIME     1     // lighting last time  
#define LED_CYCLE_TIME        1     // one times
      
    static int32_t s_LedCycleTime = LED_PERIID_TIME;  
    static int32_t s_Cnt = LED_LIGHTING_TIME * LED_CYCLE_TIME * 2;      
  
    if(s_LedCycleTime > 0){  
        s_LedCycleTime --;  
        if(s_Cnt > 0){  
            if(s_Cnt % (LED_LIGHTING_TIME * 2) == 0){  
                Led1_Set(LED_ON);
            }else{  
                Led1_Set(LED_OFF);
            }  
            s_Cnt --;  
        }else{  
            Led1_Set(LED_OFF);
        }  
    }else{  
        s_LedCycleTime = LED_PERIID_TIME;  
        s_Cnt = LED_LIGHTING_TIME * ledState * 2;  
        Led1_Set(LED_OFF);
    }  
}

相关标签: LED 闪烁