TEST/TEST_Prj/stm32_std_proprj/Demo/USER/main.c

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "stm32f10x.h"
#include "stdio.h"
#include "key.h"
#include "usart.h"
#include "drive_dht11.h"
#include "bh1750.h"

#include "CCS811.h"
#include "CCS811_IIC.h"

u8 humi=0;//湿度值
u8 temp=0;//温度值
u8 buffer[10]={0}; 
u16 GzVal=0;  //实际光照值
char ShowBuf[16]={0};


void TIMER3_Int_Init(u16 arr,u16 psc)
{
	 TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStrue;
 	 NVIC_InitTypeDef NVIC_InitStructure;

	 TIM_TimeBaseInitStrue.TIM_Period=arr;
	 TIM_TimeBaseInitStrue.TIM_Prescaler=psc;
	 TIM_TimeBaseInitStrue.TIM_CounterMode=TIM_CounterMode_Up;
	 TIM_TimeBaseInitStrue.TIM_ClockDivision=TIM_CounterMode_Up;
   RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
   TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStrue);
   
   TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE);//使能TIM3更新中断

   //中断优先级NVIC设置
		NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;  //TIM3中断
		NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
		NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;  //从优先级3级
		NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
		NVIC_Init(&NVIC_InitStructure);  //初始化NVIC寄存器
	
		TIM_Cmd(TIM3, ENABLE);  //使能TIMx	

}




u16 GetTimer=0;//采集时间计数器 我用P=U2/R 半波整流



void TIM3_IRQHandler(void)//中断服务程序 
{
   if(TIM_GetITStatus(TIM3,TIM_IT_Update)==SET)//SET为1 
	 {
		     GetTimer++;//采集计数器
         TIM_ClearITPendingBit(TIM3,TIM_IT_Update);		//清除TIM3的更新中断标志

				 
		  
	 }
}



u8 GetFlag=0;


uint8_t  sendBuff[16]={0};

int main(void)
{	 

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置中断优先级分组为组2：2位抢占优先级，2位响应优先级
	delay_init();	    	 //延时函数初始化	  
 	LED_Init();		  			//初始化与连接的硬件接口
	uart_init(115200);
	delay_ms(1000);
	TIMER3_Int_Init(10000,71);//定时器初始化 //10ms进一次中断
	BH1750_Init();
 	while(1)
	{	 	

       
		if(GetTimer>100)//1S
     {  		
			        GetTimer=0;
	           if(dht11_read_data(buffer) == 0)//读取温湿度
						{
									humi = buffer[0] + buffer[1] / 10;//取湿度值
									temp = buffer[2] + buffer[3] / 10;//取温度值
						}		
						GzVal = Dispose();		
		
					printf("wsdgzcheck_X%dH%dD%dZ\r\n",temp,humi,GzVal);//发送到上位机app
									
					
			}
		 
	

			
	} 
}