11.6：完善多任务和消息队列机制。

2025-11-06 16:32:17 +08:00
commit 5f408b4ece
337 changed files with 257102 additions and 0 deletions
--- a/STM32/Environment_Node/Drivers/DHT11.c
+++ b/STM32/Environment_Node/Drivers/DHT11.c
@@ -0,0 +1,129 @@
+#include "DHT11.h"
+			
+//<2F><>λDHT11
+void vDht11Rst(void)	   
+{                 
+  vDht11Mode(OUT); 	//SET OUTPUT
+  DHT11_Low; 	      //<2F><><EFBFBD><EFBFBD>DQ
+  vTaskDelay(20);    	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>18~30ms
+  DHT11_High; 			//DQ=1 
+  vDelayUs(13);     	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>10~35us
+}
+
+//<2F>ȴ<EFBFBD>DHT11<31>Ļ<EFBFBD>Ӧ
+//<2F><><EFBFBD><EFBFBD>1:δ<><CEB4><EFBFBD>⵽DHT11<31>Ĵ<EFBFBD><C4B4><EFBFBD>
+//<2F><><EFBFBD><EFBFBD>0:<3A><><EFBFBD><EFBFBD>
+uint8_t vDht11Check(void) 	   
+{   
+  uint8_t retry=0;
+  vDht11Mode(IN);//SET INPUT	 
+  while (GPIO_ReadInputDataBit(DHT11_GPIO_PORT,DHT11_GPIO_PIN)&&retry<100)//DHT11<31><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>40~80us
+  {
+    retry++;
+    vDelayUs(1);
+  };	 
+  if(retry>=100)return 1;
+  else retry=0;
+    while (!GPIO_ReadInputDataBit(DHT11_GPIO_PORT,DHT11_GPIO_PIN)&&retry<100)//DHT11<31><31><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD><EFBFBD>ٴ<EFBFBD><D9B4><EFBFBD><EFBFBD><EFBFBD>40~80us
+  {
+    retry++;
+    vDelayUs(1);
+  };
+  if(retry>=100)return 1;	    
+  return 0;
+}
+
+//<2F><>DHT11<31><31>ȡһ<C8A1><D2BB>λ
+//<2F><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>1/0
+uint8_t vDht11ReadBit(void) 			 
+{
+  uint8_t retry=0;
+  while(GPIO_ReadInputDataBit(DHT11_GPIO_PORT,DHT11_GPIO_PIN)&&retry<100)//<2F>ȴ<EFBFBD><C8B4><EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ
+  {
+    retry++;
+    vDelayUs(1);
+  }
+  retry=0;
+  while(!GPIO_ReadInputDataBit(DHT11_GPIO_PORT,DHT11_GPIO_PIN)&&retry<100)//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ
+  {
+    retry++;
+    vDelayUs(1);
+  }
+  vDelayUs(40);//<2F>ȴ<EFBFBD>40us
+  if(GPIO_ReadInputDataBit(DHT11_GPIO_PORT,DHT11_GPIO_PIN))return 1;
+  else return 0;		   
+}
+
+//<2F><>DHT11<31><31>ȡһ<C8A1><D2BB><EFBFBD>ֽ<EFBFBD>
+//<2F><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+uint8_t vDht11ReadByte(void)    
+{        
+  uint8_t i,dat;
+  dat=0;
+  for (i=0;i<8;i++) 
+  {
+    dat<<=1; 
+    dat|=vDht11ReadBit();
+  }						    
+  return dat;
+}
+
+//<2F><>DHT11<31><31>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+//temp:<3A>¶<EFBFBD>ֵ(<28><>Χ:0~50<35><30>)
+//humi:ʪ<><CAAA>ֵ(<28><>Χ:20%~90%)
+//<2F><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>0,<2C><><EFBFBD><EFBFBD>;1,<2C><>ȡʧ<C8A1><CAA7>
+uint8_t vDht11ReadData(uint8_t *pucTemp,uint8_t *pucHumi)    
+{        
+  uint8_t ucBuffer[5];
+  uint8_t i;
+  vDht11Rst();
+  if(vDht11Check()==0)
+  {
+    for(i=0;i<5;i++)//<2F><>ȡ40λ<30><CEBB><EFBFBD><EFBFBD>
+    {
+      ucBuffer[i]=vDht11ReadByte();
+    }
+    if((ucBuffer[0]+ucBuffer[1]+ucBuffer[2]+ucBuffer[3])==ucBuffer[4])
+    {
+      *pucHumi=ucBuffer[0];
+      *pucTemp=ucBuffer[2];
+    }
+  }
+  else return 1;
+  return 0;	    
+}
+
+//<2F><>ʼ<EFBFBD><CABC>DHT11<31><31>IO<49><4F> DQ ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD>DHT11<31>Ĵ<EFBFBD><C4B4><EFBFBD>
+//<2F><><EFBFBD><EFBFBD>1:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+//<2F><><EFBFBD><EFBFBD>0:<3A><><EFBFBD><EFBFBD>    	 
+uint8_t vDht11Init(void)
+{	 
+  GPIO_InitTypeDef  GPIO_InitStructure;	
+  RCC_APB2PeriphClockCmd(DHT11_GPIO_CLK, ENABLE);	 //ʹ<><CAB9>PA<50>˿<EFBFBD>ʱ<EFBFBD><CAB1>
+  GPIO_InitStructure.GPIO_Pin = DHT11_GPIO_PIN;				 //PG11<31>˿<EFBFBD><CBBF><EFBFBD><EFBFBD><EFBFBD>
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ 	GPIO_Init(DHT11_GPIO_PORT, &GPIO_InitStructure);				 //<2F><>ʼ<EFBFBD><CABC>IO<49><4F>
+  GPIO_SetBits(DHT11_GPIO_PORT,DHT11_GPIO_PIN);						 //PG11 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+  vDht11Rst();  //<2F><>λDHT11
+  return vDht11Check();//<2F>ȴ<EFBFBD>DHT11<31>Ļ<EFBFBD>Ӧ
+} 
+
+void vDht11Mode(uint8_t ucMode)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+  
+  if(ucMode)
+  {
+    GPIO_InitStructure.GPIO_Pin = DHT11_GPIO_PIN;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
+  }
+  else
+  {
+    GPIO_InitStructure.GPIO_Pin =  DHT11_GPIO_PIN;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  }
+  GPIO_Init(DHT11_GPIO_PORT, &GPIO_InitStructure);
+}