周期测量与LED指示：实时数据监控与定时功能-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_55114014/article/details/123694582

未实现功能：

周期测量

LED 指示灯功能：

1) L1:通道 3 的实时电压数据大于缓存电压数据，指示灯 L1 点亮，否则熄灭。

2) L2:实时频率值大于缓存频率数据，指示灯 L2 点亮，否则熄灭。

长按 S7 按键超过 1 秒后松开按键，判定为 S7 长按键功能

//iic.c

unsigned char  pcf8591(unsigned char addr) //读数据
{
	unsigned char dat;
	
	
	IIC_Start(); 
	IIC_SendByte(0x90);
	IIC_WaitAck();
	IIC_SendByte(addr);
	IIC_WaitAck();
    IIC_Stop();
	
	IIC_Start(); 
	IIC_SendByte(0x91);
	IIC_WaitAck();
	dat=IIC_RecByte();
	IIC_SendAck(1);
   IIC_Stop();
	return dat;
	
}

void e2prom_write(unsigned char addr,dat)//写内存
{
	IIC_Start(); 
	IIC_SendByte(0xa0);
	IIC_WaitAck();
	IIC_SendByte(addr);
	IIC_WaitAck();
	IIC_SendByte(dat);
	IIC_WaitAck();
    IIC_Stop();
}
unsigned char e2prom_read(unsigned char addr) //读数据
{
	unsigned char dat;
	
	
	IIC_Start(); 
	IIC_SendByte(0xa0);
	IIC_WaitAck();
	IIC_SendByte(addr);
	IIC_WaitAck();
    IIC_Stop();
	
	IIC_Start(); 
	IIC_SendByte(0xa1);
	IIC_WaitAck();
	dat=IIC_RecByte();
	IIC_SendAck(1);
   IIC_Stop();
	return dat;
	
}

//iic.h

unsigned char  pcf8591(unsigned char addr);
void e2prom_write(unsigned char addr,dat);
unsigned char e2prom_read(unsigned char addr);

//ds1302.c

void ds1302_init(unsigned char hour,min,sec)//向时钟芯片写数据
{
	Write_Ds1302_Byte( 0x84,hour);
	Write_Ds1302_Byte( 0x82,min );
	Write_Ds1302_Byte( 0x80,sec );
}
unsigned char hour,min,sec;
void ds1302_read()//读取时间
{
	hour=Read_Ds1302_Byte ( 0x85 );
	min =Read_Ds1302_Byte ( 0x83 );
	sec =Read_Ds1302_Byte ( 0x81 );
}

//ds1302.h

void ds1302_init(unsigned char hour,min,sec);
void ds1302_read();

//main.c

#include "reg52.h"
#include "iic.h"
#include "ds1302.h"
#include "onewire.h"
unsigned char code SMG_duanma[20]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
                                   0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,
							       0xbf,0x7f,0xc8,0xc1};//01234567 89ABCDEF -. n u
unsigned char code SMG_duanma_dot[20]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,
                                   0x00,0x10};
sbit key1=P3^0;
sbit key2=P3^1;
sbit key3=P3^2;
sbit key4=P3^3;


unsigned int count_f; //计算频率
unsigned int dat_f;   //存放1s的频率
unsigned char count_t;//计算时间

unsigned char key1_flag=1,key2_flag=3,channel=3;


void delay(int n)
 
{
	while(n--)
	{}
 
}
 
 
void Init_Hc138(int n)    //译码器选择
{
  switch (n)
    {
			 case 0:
                P2=(P2 & 0x1f) | 0x00;
                break;              //什么都不选
       case 4:
                P2=(P2 & 0x1f) | 0x80;
                break;              //让Y4输出低电平
       case 5:
                P2=(P2 & 0x1f) | 0xa0;
                break;              //让Y5输出低电平
       case 6:
                P2=(P2 & 0x1f) | 0xc0;
                break;              //让Y6输出低电平
       case 7:
                P2=(P2 & 0x1f) | 0xe0;
                break;              //让Y7输出低电平
    }
}
 
void Output_P0(unsigned char channel,unsigned char dat)
{
  Init_Hc138(channel);
  P0=dat;             //P0口输出数据
}
 

void show_smg(unsigned char pos,unsigned char val)
{
	Output_P0(6,pos);				
	Output_P0(7,SMG_duanma[val]);		
	delay(500);
 
}
void show_smg_dot(unsigned char pos,unsigned char val)
{
	Output_P0(6,pos);				
	Output_P0(7,SMG_duanma_dot[val]);		
	delay(500);
 
}

void delay_pcf8591_show(int c)              //电位计
{
	 unsigned char temp;
	   temp=pcf8591(key2_flag);//3滑变4光敏
	while(c--)
	{
			show_smg(0x01,19);
			show_smg(0x02,16);
			show_smg(0x04,channel);
//			show_smg(0x08,16);
//			show_smg(0x10,16);
		  show_smg_dot(0x20,temp/100%10);
			show_smg(0x40,temp/10%10);
			show_smg(0x80,temp%10);
		
	}
}

 
void delay_shijian_show(int c)               //时间
{
		ds1302_read();
	while(c--)
	{
			show_smg(0x01,hour/16);
			show_smg(0x02,hour%16);
			show_smg(0x04,16);
			show_smg(0x08,min/16);
			show_smg(0x10,min%16);
		  show_smg(0x20,16);
			show_smg(0x40,sec/16);
			show_smg(0x80,sec%16);
	}
}
unsigned int temp = 0;
void delay_wendu_show(int c)                   //温度
{
		
	while(c--)
	{
			show_smg(0x01,temp/10);
			show_smg(0x02,temp%10);
			show_smg(0x04,16);
			show_smg(0x08,16);
			show_smg(0xf0,16);
	}
}
 
void rd_ds18b20()
{
	unsigned char lsb,msb;
	
  
 
	init_ds18b20();
	Write_DS18B20(0xcc);
	Write_DS18B20(0x44); 
 
 
	
	init_ds18b20();
	Write_DS18B20(0xcc);
	Write_DS18B20(0xbe); 
	
	lsb=Read_DS18B20();
	msb=Read_DS18B20();
	
	temp=msb;
	temp=(temp<<8)|lsb;
	temp>>=4;
	/*
	if((temp&0xf800)==0x0000)
	{
		temp>>=4;
		temp=temp*10;
		temp=temp+(lsb&0x0f)*0.625;
		
	}                 //小数部分
	*/
}
 
void timer_init()
{
	//定时器0计数
 
	TH0=0xff;
	TL0=0xff;
	
	//定时器1计时
	TH1=(65535-50000+1)/256;
	TH1=(65535-50000+1)%256;
	
	TMOD=0x16;
	ET0=1;
	ET1=1;
	TR0=1;
	TR1=1;
	
	EA=1;
	
	
}
void service_timer0() interrupt 1
{
	count_f++;
}
 
void service_timer1() interrupt 3
{
	TH1=(65535-50000+1)/256;
	TH1=(65535-50000+1)%256;
	
	count_t++;
	if(count_t==20)
	{
		dat_f=count_f;
		count_f=0;
		count_t=0;
	}
	

}
long int zhouqi,zhouqi_t;

void delay_frequency_show(int c)                //555测频率
{
	while(c--)
	{
		
			  show_smg(0x01,15);
		    show_smg(0x06,16);
		if(dat_f>9999)
		{
			show_smg(0x08,dat_f/10000);
		}
		if(dat_f>999)
		{
			show_smg(0x10,(dat_f/1000)%10);
		}
		if(dat_f>99)
		{
			show_smg(0x20,(dat_f/100)%10);
		}
		if(dat_f>9)
		{
			show_smg(0x40,(dat_f/10)%10);
		}
		
			show_smg(0x80,dat_f%10);
		
	}
}

void delay_zhouqi_show(int c)                //zhoqui
{
	zhouqi=dat_f;
	zhouqi_t=1000000/zhouqi;
	while(c--)
	{
		
			  show_smg(0x01,18);
		    show_smg(0x06,16);
		
		
			show_smg(0x40,zhouqi_t/10);
		
		
			show_smg(0x80,zhouqi_t%10);
		
	}
}
 
void Initsystem()     //关闭无关设备
{
	  Output_P0(4,0xff);
      Output_P0(5,0x00);
	  Output_P0(0,0x00);
}
 
void key_proc()
{
	
	if(key1==0)
		{
			delay(5000);
			if(key1==0)
			{
					delay(5000);
				switch (key1_flag)
				{
					case 1:key1_flag=2;
					
					break;
					case 2:key1_flag=3;
					break;
					case 3:key1_flag=1;
					break;
				}
			while(key1==0);
      }
	  }
		
		if(key2==0)
		{
			delay(5000);
			if(key2==0)
			{
					delay(5000);
				switch (key2_flag)
				{
					case 3:key2_flag=4;
					       channel=1;
					
					break;
					case 4:key2_flag=3;
					       channel=3;
					break;
				}
			while(key2==0);
      }
	  }
		if(key3==0)
		{
			delay(5000);
			if(key3==0)
			{
				e2prom_write(0,pcf8591(3));
			}
			while(key3==0);
    }
		if(key4==0)
		{
			delay(5000);
			if(key4==0)
			{
				e2prom_write(1,dat_f);
			}
			while(key4==0);
    }
	  }

void display_proc()
{
	if(key1_flag!=0)
			{
				if(key1_flag==1)
				{
				
			delay_frequency_show(20);
				Output_P0(4,0xfb);
			 P2=(P2 & 0x1f);
				}
				if(key1_flag==2)
				{
			delay_zhouqi_show(20);
				Output_P0(4,0xf7);
			 P2=(P2 & 0x1f);
				}
				if(key1_flag==3)
        {		
						delay_pcf8591_show(20);
					Output_P0(4,0xef);
			 P2=(P2 & 0x1f);
			  }
		
		}
}
void led_proc()
{
	unsigned char temp_voltage;
	unsigned char real_voltage;
	unsigned int temp_frequency;
	real_voltage=pcf8591(3);
	temp_voltage=e2prom_read(0);
	temp_frequency=e2prom_read(1);
	if(real_voltage>temp_voltage)
	{
		Output_P0(4,0xfe);
			 
	}
	if(dat_f>temp_frequency)
	{
		Output_P0(4,0xfd);
			 
	}
	
}
void main()
{
	Initsystem();  //系统初始化
	timer_init();  //定时器初始化
 
		while(1)
	{
//		led_proc();
		key_proc();
		display_proc();
		
	}
}

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