[$group]
元件库-传感器.$pname$
[$last_ver_update_time]
2021-04-03
[$min_need_ver]
2.1
[$p_list]

[$short_show_UIname]

[$code_area_type]
codes,exe_per_1ms,init_code
[$blocks_type]
line

[$name]
 

[$引脚占用列表，用于提示冲突]
[($_xgm$data),type=pin]|.DHT11温湿度传感器已占用data引脚
 




[$寄存器占用列表，用于提示冲突，但=>后的值没变则不提示冲突]
[($_xgm$timer),type=num]|DHT11积木里已占用此定时器号:[($_xgm$timer),type=num]


[$中断函数号占用列表，用于提示冲突]





[$interrupt_1]


 


[$thread_do]

 
[$run]



[$cs]


[$function_ref_define_in_headfile]
@@file=DHT11.h


#define  dataPin_$rnd_varname_pre$ [($_xgm$data),type=pin]

 
 extern float rec_data_$rnd_varname_pre$[];

 extern  u16 ccc_max_count;

  extern  u16 ccc_max_count2;
 
 
void call_back_from_5us_timer_$rnd_varname_pre$();



[$init_code_for_define_area_once]
@@file=DHT11.c


[$init_code_for_define_area]
@@file=DHT11.c

 

#include "io.h"

#include "protothread.h"
#include "app_process.h"
#include "sys/timer.h"
#include "Extline_Lib.h" 
#include "Lib_base.h"  //考虑PROCESS2_WAIT_UNTIL宏

   
  
  
  
#define  dataPin_$rnd_varname_pre$ [($_xgm$data),type=pin]

 u16 ccc_max_count=0;
 
 u16 ccc_max_count2=0;
 
 float rec_data_$rnd_varname_pre$[2];


void D_OUT_$rnd_varname_pre$()
{


#get_P口_to_PxM1_PxM0_set_code(group_xml,rand1,block_name,ref_complier,extinfo,"[($_xgm$data),type=pin]","1","DHT11温湿度传感器data信号")%


}


void D_IN_$rnd_varname_pre$()
{


#get_P口_to_PxM1_PxM0_set_code(group_xml,rand1,block_name,ref_complier,extinfo,"[($_xgm$data),type=pin]","0","DHT11温湿度传感器data信号")%   //old= "0"


}



 

extern unsigned long  ptTicks2;



void delay_10us_$rnd_varname_pre$(u16 time1)
{


   u32 ccc=0;
       //18 40 80
     do { ccc++; } while (ccc<=time1* 3 *#get_1us_delay_num_stm32f10x(group_xml,rand1,block_name,ref_complier,extinfo)% );



  /*
    u32 ssss=ptTicks2;
    ccc_max_count2=0;
	
	
    do {  } while (ptTicks2<=(u32)(ssss+ time1/10) && ccc_max_count2<=4 );//timer_jinque_5us_ccc_$rnd_varname_pre$ 每10us加一
	
	*/
	
	
	
}



  struct timer timer_at_$rnd_varname_pre$;
  
 

//主机发送开始信号
char DHT11_Start_$rnd_varname_pre$(struct pt *process_pt)
{ PT_BEGIN(process_pt);



	D_OUT_$rnd_varname_pre$(); //输出模式
	
	
	  //先拉高
	
	  IO_Write(dataPin_$rnd_varname_pre$ ,1) ;
	  
	  
	     delay_10us_$rnd_varname_pre$(12);
	
	
	
	
	
	
	
	  IO_Write(dataPin_$rnd_varname_pre$ ,0) ;
	   
	
	timer_set2(&timer_at_$rnd_varname_pre$,  100*20 );//old=20ms

    timer_restart2(&timer_at_$rnd_varname_pre$);
		 
		 PROCESS2_WAIT_UNTIL(process_pt , timer_expired2(&timer_at_$rnd_varname_pre$)!=0);
	
	
	
	
	
	
	  IO_Write(dataPin_$rnd_varname_pre$ ,1) ; //拉高电平20~40us
	  
	 
	  delay_10us_$rnd_varname_pre$(30);//old=30us,DHT11官网查询到了V1.3版本的数据手册:需要拉高10-20us
	
	
	
	
	
	D_IN_$rnd_varname_pre$(); //输入模式
	
	
	
	
	
	
	
	
	
	
	PT_END(process_pt);
}







#define max_waitccc 20 
 


//获取一个字节
char DHT11_Rec_Byte_$rnd_varname_pre$(void)
{
	unsigned char i = 0;
	unsigned char data;
	
	 
	TT_disable_100us_Task_scan_for_other(1);//如果已经执行到这行，说明已经不在任何中断里了？？（线程体执行时间大于260us时），所以void SysTick_Handler(void) 里 if(TT_disable_100us_Task_scan_for_other_Flag==0){不成立
	
	data=0;
	
	 
	
	
		u32 count_high_v_times=0;
		
		
		
		
		
	
	
	for(i=0;i<8;i++) //1个数据就是1个字节byte，1个字节byte有8位bit
	{
	
	     ccc_max_count=0;
	
	
	
		while( IO_Read(dataPin_$rnd_varname_pre$) == 0&&ccc_max_count<=max_waitccc){;} 
		
		//-----------------------------
	
		count_high_v_times=0;
	
		
	     ccc_max_count=0;
		 
		while( IO_Read(dataPin_$rnd_varname_pre$) == 1&&ccc_max_count<=max_waitccc){
		
		    delay_10us_$rnd_varname_pre$(10);
		   count_high_v_times++;
		
		
		
		}
		
		
		
		data <<= 1; //左移
		
		//if( count_high_v_times>=18*#get_1us_delay_num_stm32f10x(group_xml,rand1,block_name,ref_complier,extinfo)% ) //如果过了30us还是高电平的话就是数据1
		if(count_high_v_times>=3)
		{
			data |= 1; //数据+1
		}
		
		
		
	 
		
		//ccc_max_count=0;
	
		//while( IO_Read(dataPin_$rnd_varname_pre$) == 1&&ccc_max_count<=max_waitccc ){;} //加大到840ms后比400ms稳定， 高电平变低电平，等待高电平结束
		
		
		
		
		
	}
	
	
	
	
	TT_disable_100us_Task_scan_for_other(0);
	
	
	return data;
}

//获取数据


struct pt pt_DHT11_Start_$rnd_varname_pre$;







u8 Drv_Dht11_ConnectCheck_$rnd_varname_pre$ ()
{
    u8 tempVar = 0;   // 定义临时变量
	
	
	
	
	
	TT_disable_100us_Task_scan_for_other(1);
	
	
	
	
 
    while ((IO_Read(dataPin_$rnd_varname_pre$) == 1) && tempVar < 10)   // DHT11会拉低40~80us
    {
        tempVar++;
        delay_10us_$rnd_varname_pre$(10);
    };
	
	
	
	
	
    if(tempVar >= 10)
		{
	       TT_disable_100us_Task_scan_for_other(0);
			return 1;
		}
    else
		{
			tempVar = 0;
		}
		
		
		
		
    while ((IO_Read(dataPin_$rnd_varname_pre$)==0 ) && tempVar < 10)   // DHT11拉低后会再次拉高40~80us
    {
        tempVar++;
        delay_10us_$rnd_varname_pre$(10);
    };
    if(tempVar >= 10)
		{
		
		
	        TT_disable_100us_Task_scan_for_other(0);
			return 1;
		}
		
		
		
		
		
		
		tempVar=0;
		
		
    while ((IO_Read(dataPin_$rnd_varname_pre$)==1 ) && tempVar < 10)   // 等待拉高完毕
    {
        tempVar++;
        delay_10us_$rnd_varname_pre$(10);
    };
    if(tempVar >= 10)
		{
	       TT_disable_100us_Task_scan_for_other(0);
			return 1;
		}
		
		
		
		
		
	TT_disable_100us_Task_scan_for_other(0);
    return 0;
}
 
















char DHT11_REC_Data_$rnd_varname_pre$(struct pt *process_pt)
{


   PT_BEGIN(process_pt);



	  static unsigned char R_H,R_L,T_H,T_L=0;
	  static unsigned char RH,RL,TH,TL,CHECK=0;
	   
	
	
	 
	 
	 
	
	 call_PT_2_func_without_pm(DHT11_Start_$rnd_varname_pre$,&pt_DHT11_Start_$rnd_varname_pre$);
	
	 
	  
	
	
	if(  Drv_Dht11_ConnectCheck_$rnd_varname_pre$() == 0 ) //判断DHT11是否响应
	//if(IO_Read(dataPin_$rnd_varname_pre$)==0)
	{
	
	 
	  
		
		R_H = DHT11_Rec_Byte_$rnd_varname_pre$();
		R_L = DHT11_Rec_Byte_$rnd_varname_pre$();
		T_H = DHT11_Rec_Byte_$rnd_varname_pre$();
		T_L = DHT11_Rec_Byte_$rnd_varname_pre$();
		CHECK = DHT11_Rec_Byte_$rnd_varname_pre$(); //接收5个数据
		
	 
		 
	  
		
		
		if((u8)(R_H + R_L + T_H + T_L) == CHECK) //和检验位对比，判断校验接收到的数据是否正确
		{
			RH = R_H;
			RL = R_L;
			TH = T_H;
			TL = T_L;
			
			
			      if(RL>=10){
				  
				  rec_data_$rnd_varname_pre$[0] = (float)RH+(float)RL/100.00;
				  
				  }else{
				rec_data_$rnd_varname_pre$[0] = (float)RH+(float)RL/10.00;
	             }
				
				
			      if(TL>=10){
				
	            rec_data_$rnd_varname_pre$[1] = (float)TH+(float)TL/100.00;
	          
			    }else{
				
				
		        rec_data_$rnd_varname_pre$[1] = (float)TH+(float)TL/10.00;
	          
				
				
				}
			  
			  
	
			
			
		}
		
		
		
	}
	
	
 
	  
	   
	timer_set(&timer_at_$rnd_varname_pre$,  80 );//每次测量需要留出时间间隔，如果短时间（几百毫秒内）多次测量，就会出现这种情况。保证2秒以上的测量间隔，就不会出现这种情况

    timer_restart(&timer_at_$rnd_varname_pre$);
		 
		 PROCESS2_WAIT_UNTIL(process_pt , timer_expired(&timer_at_$rnd_varname_pre$)!=0);
	
	 
	
	 

	
		 
	PT_END(process_pt);
}
















[$init_code_for_init_val]
 
#get_P口_to_PxM1_PxM0_set_code(group_xml,rand1,block_name,ref_complier,extinfo,"[($_xgm$data),type=pin]","1","DHT11温湿度传感器data信号")%

  IO_Write(dataPin_$rnd_varname_pre$ ,1) ;
	  
	  



[$timer0_1ms_code]
ccc_max_count++;
  
ccc_max_count2++;




[$toolbox_block_code]

<block type="drv_DHT11_init2">
  
  


 </block>







[$replace_map]
$_xgm$data = $field$data,mytype|pin, ptype|TIMES