RT-Thread一般讨论

5 调用rt_thread_delay后线程被挂起，无法再次执行

发布于 2021-12-03 14:34:02 浏览：1467 订阅该版

参照官方手册做了一个bootloader。下载boot和app后 应用线程执行了几个时间片就被挂起不在执行了，只有空闲线程和shell在执行。未添加bootloader之前是正常的。不知道什么原因引起。如下ps命令查看结果
![image.png](https://oss-club.rt-thread.org/uploads/20211203/259114335e98c945619e2a94b8bdd2c1.png)
![image.png](https://oss-club.rt-thread.org/uploads/20211203/d5aa87d25c3bb01ba286bfe0e151a5e1.png)

main线程入口，ps查看状态为挂起，但是指示灯正常闪烁
```
int main(void)
{
    /* set LED0 pin mode to output */
    rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);\
		
	fal_init(); 
	rt_kprintf("The current version of APP firmware is %s\n", APP_VERSION);
	
    //Sys_Init();
	app_thread_init();	
    while (1)
    {
        LED_Working(1);
        rt_thread_delay(500);
        LED_Working(0);
        rt_thread_delay(500);
    }
}
```
断点调试发现各线程也能进去，但是SPI读不到数据了，如下AD采样使用SPI通信。bootloader之前能读到数据，现在全为0
AD采集线程入口
```
	
	while(1)
    {

/*获取4个通道AD采样值，自动扫描4通道，分别存储，都为0判定为采样异常*/
		for(i=0;i<11;i++)
		{
			CH1_Temp =  Get_MAN_Ch_n_Mode_Data();//获取通道1的值
			if( (CH1_Temp > 32000u) &&(CH1_Temp < 0xffff))	
			ADS_CH1_Value[i]= CH1_Temp;
			
			CH2_Temp =  Get_MAN_Ch_n_Mode_Data();//获取通道2的值
			if( (CH2_Temp > 32000u) &&(CH2_Temp < 0xffff))		
			ADS_CH2_Value[i]= CH2_Temp;	
			
			CH3_Temp =  Get_MAN_Ch_n_Mode_Data();//获取通道3的值
			if( (CH3_Temp > 32000u) &&(CH3_Temp < 0xffff))	
			ADS_CH3_Value[i]= CH3_Temp;

CH4_Temp =  Get_MAN_Ch_n_Mode_Data();//获取通道4的值
			if( (CH4_Temp > 32000u) &&(CH4_Temp < 0xffff))		
			ADS_CH4_Value[i]= CH4_Temp;	
#if 1			
			if((CH1_Temp == 0xffff) ||
					(CH2_Temp == 0xffff) ||
					(CH3_Temp == 0xffff) ||
					(CH4_Temp == 0xffff))
			{
					ADS8688_Init_Mult();
			}
#endif			
		}
		if((i == SAMPLE_NUM)) 
	    {
	        AdcValue_CH1 = MedianFilting(ADS_CH1_Value,10u);
	        AdcValue_CH2 = MedianFilting(ADS_CH2_Value,10u);
	        AdcValue_CH3 = MedianFilting(ADS_CH3_Value,10u);
				  AdcValue_CH4 = MedianFilting(ADS_CH4_Value,10u);
				  i = 0;
			//rt_kprintf(" channel4 ADC value :%d \n",  AdcValue_CH4);
	    }

if(	(AdcValue_CH1 != 0xffff) ||
			(AdcValue_CH2 != 0xffff) ||
			(AdcValue_CH3 != 0xffff) ||
			(AdcValue_CH4 != 0xffff))
		{
			if(AdcValue_CH1 > 33000u)
				AdcValue_Used = AdcValue_CH1;
			else if(AdcValue_CH2 > 33000u)
				AdcValue_Used = AdcValue_CH2;
			else if(AdcValue_CH3 > 33000u)
				AdcValue_Used = AdcValue_CH3;		
			else if(AdcValue_CH4 > 33000u)
				AdcValue_Used = AdcValue_CH4;			
		}
		else
		{
			/* AD采样值均为0，采样异常*/
			RELAY_Control(OFF); //是否断开继电器？
			//show_error(ERROR_ADC);
			//return;

}
		rt_thread_delay(5);
	}
```