多路温度压力检测系统仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
单片机源程序如下:
- #include <reg52.h>
- #include "intrins.h"
- #include <math.H>
- #define u8 unsigned char
- #define u16 unsigned int
- #define uchar unsigned char
- #define uint unsigned int
- uchar yushe_wendu=80; //温度预设值
- uchar yushe_yali=250; //压力预设值
- uint wendu; //温度值全局变量
- uchar yali1; //用于读取ADC数据
- uchar yali2; //用于读取ADC数据
- uchar yali3; //用于读取ADC数据
- uchar yali4; //用于读取ADC数据
- //运行模式
- uchar Mode=0; //=1是设置温度阀值 =2是设置压力阀值 =0是正常监控模式
- //管脚声明
- sbit Buzzer =P2^3; //蜂鸣器
- sbit Fan =P1^7;
- //定义三个设置按键
- sbit Key_SET = P2^4;
- sbit Key_ADD = P2^5;
- sbit Key_SUB = P2^6;
- sbit Key_OK = P2^7;
- sbit ds1 = P1^2;
- sbit ds2 = P1^3;
- sbit ds3 = P1^4;
- sbit ds4 = P1^5;
-
- /********************************************************************
- * 名称 : delay_1ms()
- * 功能 : 延时1ms函数
- * 输入 : q
- * 输出 : 无
- ***********************************************************************/
- void delay_ms(uint q)
- {
- uint i,j;
- for(i=0;i<q;i++)
- for(j=0;j<110;j++);
- }
- void delayUs()
- {
- _nop_();
- }
- void delayMs(uint a)
- {
- uint i, j;
- for(i = a; i > 0; i--)
- for(j = 100; j > 0; j--);
- }
- /***********************************************************************************************************
- LCD1604相关函数
- ***********************************************************************************************************/
- //LCD管脚声明 (RW引脚实物直接接地,因为本设计只用到液晶的写操作,RW引脚一直是低电平)
- sbit LCDRS = P2^0;
- sbit LCDEN = P2^2;
- sbit D0 = P0^0;
- sbit D1 = P0^1;
- sbit D2 = P0^2;
- sbit D3 = P0^3;
- sbit D4 = P0^4;
- sbit D5 = P0^5;
- sbit D6 = P0^6;
- sbit D7 = P0^7;
- //LCD延时
- void LCDdelay(uint z) //该延时大约100us(不精确,液晶操作的延时不要求很精确)
- {
- uint x,y;
- for(x=z;x>0;x--)
- for(y=10;y>0;y--);
- }
- void LCD_WriteData(u8 dat)
- {
- if(dat&0x01)D0=1;else D0=0;
- if(dat&0x02)D1=1;else D1=0;
- if(dat&0x04)D2=1;else D2=0;
- if(dat&0x08)D3=1;else D3=0;
- if(dat&0x10)D4=1;else D4=0;
- if(dat&0x20)D5=1;else D5=0;
- if(dat&0x40)D6=1;else D6=0;
- if(dat&0x80)D7=1;else D7=0;
- }
- //写命令
- void write_com(uchar com)
- {
- LCDRS=0;
- LCD_WriteData(com);
- // DAT=com;
- LCDdelay(5);
- LCDEN=1;
- LCDdelay(5);
- LCDEN=0;
- }
- //写数据
- void write_data(uchar date)
- {
- LCDRS=1;
- LCD_WriteData(date);
- // DAT=date;
- LCDdelay(5);
- LCDEN=1;
- LCDdelay(5);
- LCDEN=0;
- }
- /*------------------------------------------------
- 选择写入位置
- ------------------------------------------------*/
- void SelectPosition(unsigned char x,unsigned char y)
- {
- if (x == 0)
- {
- write_com(0x80 + y); //表示第一行
- }
-
- else if (x == 1)
- {
- write_com(0xC0 + y); //表示第二行
- }
- else if (x == 2)
- {
- write_com(0x90 + y);
- }
- else if (x == 3)
- {
- write_com(0xD0 + y);
- }
- }
- /*------------------------------------------------
- 写入字符串函数
- ------------------------------------------------*/
- void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
- {
- SelectPosition(x,y) ;
- while (*s)
- {
- write_data( *s);
- s++;
- }
- }
- void writeString(uchar * str, uchar length)
- {
- uchar i;
- for(i = 0; i < length; i++)
- {
- write_data(str[i]);
- }
- }
-
- //========================================================================
- // 函数: void LCD_Write_Char(u8 x,u8 y,u16 s,u8 l)
- // 应用: LCD_Write_Char(0,1,366,4) ;
- // 描述: 在第0行第一个字节位置显示366的后4位,显示结果为 0366
- // 参数: x:行,y:列,s:要显示的字,l:显示的位数
- // 返回: none.
- // 版本: VER1.0
- // 日期: 2013-4-1
- // 备注: 最大显示65535
- //========================================================================
- void LCD_Write_Char(u8 x,u8 y,u16 s,u8 l)
- {
- SelectPosition(x,y) ;
- if(l>=5)
- write_data(0x30+s/10000%10); //万位
- if(l>=4)
- write_data(0x30+s/1000%10); //千位
- if(l>=3)
- write_data(0x30+s/100%10); //百位
- if(l>=2)
- write_data(0x30+s/10%10); //十位
- if(l>=1)
- write_data(0x30+s%10); //个位
- }
- /*1604指令简介
- write_com(0x38);//屏幕初始化
- write_com(0x0c);//打开显示 无光标 无光标闪烁
- write_com(0x0d);//打开显示 阴影闪烁
- write_com(0x0d);//打开显示 阴影闪烁
- */
- //1604初始化
- void Init1604()
- {
- uchar i=0;
- write_com(0x38);//屏幕初始化
- write_com(0x0c);//打开显示 无光标 无光标闪烁
- write_com(0x06);//当读或写一个字符是指针后一一位
- write_com(0x01);//清屏
-
- }
- void Display_1604(yali1,yali2,yali3,yali4)
- {
- LCD_Write_Char(2,3,yali1,3) ;
- LCD_Write_Char(2,13,yali2,3) ;
-
- LCD_Write_Char(3,3,yali3,3) ;
- LCD_Write_Char(3,13,yali4,3) ;
- }
- /***********************************************************************************************************
- ADC0832相关函数
- ***********************************************************************************************************/
- sbit ADCS1 =P1^0; //ADC0832 片选
- sbit ADCLK1 =P3^1; //ADC0832 时钟
- sbit ADDI1 =P3^0; //ADC0832 数据输入 /*因为单片机的管脚是双向的,且ADC0832的数据输入输出不同时进行,
- sbit ADDO1 =P3^0; //ADC0832 数据输出 /*为节省单片机引脚,简化电路所以输入输出连接在同一个引脚上
- sbit ADCS2 =P1^1; //ADC0832 片选
- sbit ADCLK2 =P3^3; //ADC0832 时钟
- sbit ADDI2 =P3^2; //ADC0832 数据输入 /*因为单片机的管脚是双向的,且ADC0832的数据输入输出不同时进行,
- sbit ADDO2 =P3^2; //ADC0832 数据输出
- sbit ADCS3 =P1^6; //ADC0832 片选
- sbit ADCLK3 =P3^5; //ADC0832 时钟
- sbit ADDI3 =P3^4; //ADC0832 数据输入 /*因为单片机的管脚是双向的,且ADC0832的数据输入输出不同时进行,
- sbit ADDO3 =P3^4; //ADC0832 数据输出
- sbit ADCS4 =P1^7; //ADC0832 片选
- sbit ADCLK4 =P3^7; //ADC0832 时钟
- sbit ADDI4 =P3^6; //ADC0832 数据输入 /*因为单片机的管脚是双向的,且ADC0832的数据输入输出不同时进行,
- sbit ADDO4 =P3^6; //ADC0832 数据输出
- //========================================================================
- // 函数: unsigned int Adc0832(unsigned char channel)
- // 应用: temp=Adc0832(0);
- // 描述: 读取0通道的AD值
- // 参数: channel:通道0和通道1选择
- // 返回: 选取通道的AD值
- // 版本: VER1.0
- // 日期: 2015-05-29
- // 备注:
- //========================================================================
- unsigned int Adc08321(unsigned char channel)
- {
- uchar i=0;
- uchar j;
- uint dat=0;
- uchar ndat=0;
- uchar Vot=0;
- if(channel==0)channel=2;
- if(channel==1)channel=3;
-
-
- ADDI1=1;
- _nop_();
- _nop_();
- ADCS1=0;//拉低CS端
- _nop_();
- _nop_();
- ADCLK1=1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK1=0;//拉低CLK端,形成下降沿1
- _nop_();
- _nop_();
- ADCLK1=1;//拉高CLK端
- ADDI1=channel&0x1;
- _nop_();
- _nop_();
- ADCLK1=0;//拉低CLK端,形成下降沿2
- _nop_();
- _nop_();
- ADCLK1=1;//拉高CLK端
- ADDI1=(channel>>1)&0x1;
- _nop_();
- _nop_();
- ADCLK1=0;//拉低CLK端,形成下降沿3
- ADDI1=1;//控制命令结束
- _nop_();
- _nop_();
- dat=0;
- for(i=0;i<8;i++)
- {
- dat|=ADDO1;//收数据
- ADCLK1=1;
- _nop_();
- _nop_();
- ADCLK1=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- dat<<=1;
- if(i==7)dat|=ADDO1;
- }
- for(i=0;i<8;i++)
- {
- j=0;
- j=j|ADDO1;//收数据
- ADCLK1=1;
- _nop_();
- _nop_();
- ADCLK1=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- j=j<<7;
- ndat=ndat|j;
- if(i<7)ndat>>=1;
- }
- ADCS1=1;//拉低CS端
- ADCLK1=0;//拉低CLK端
- ADDO1=1;//拉高数据端,回到初始状态
- dat<<=8;
- dat|=ndat;
- return(dat); //return ad data
- }
- //2
- unsigned int Adc08322(unsigned char channel)
- {
- uchar i=0;
- uchar j;
- uint dat=0;
- uchar ndat=0;
- uchar Vot=0;
- if(channel==0)channel=2;
- if(channel==1)channel=3;
-
-
- ADDI2=1;
- _nop_();
- _nop_();
- ADCS2=0;//拉低CS端
- _nop_();
- _nop_();
- ADCLK2=1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK2=0;//拉低CLK端,形成下降沿1
- _nop_();
- _nop_();
- ADCLK2=1;//拉高CLK端
- ADDI2=channel&0x1;
- _nop_();
- _nop_();
- ADCLK2=0;//拉低CLK端,形成下降沿2
- _nop_();
- _nop_();
- ADCLK2=1;//拉高CLK端
- ADDI2=(channel>>1)&0x1;
- _nop_();
- _nop_();
- ADCLK2=0;//拉低CLK端,形成下降沿3
- ADDI2=1;//控制命令结束
- _nop_();
- _nop_();
- dat=0;
- for(i=0;i<8;i++)
- {
- dat|=ADDO2;//收数据
- ADCLK2=1;
- _nop_();
- _nop_();
- ADCLK2=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- dat<<=1;
- if(i==7)dat|=ADDO2;
- }
- for(i=0;i<8;i++)
- {
- j=0;
- j=j|ADDO2;//收数据
- ADCLK2=1;
- _nop_();
- _nop_();
- ADCLK2=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- j=j<<7;
- ndat=ndat|j;
- if(i<7)ndat>>=1;
- }
- ADCS2=1;//拉低CS端
- ADCLK2=0;//拉低CLK端
- ADDO2=1;//拉高数据端,回到初始状态
- dat<<=8;
- dat|=ndat;
- return(dat); //return ad data
- }
- //23
- unsigned int Adc08323(unsigned char channel)
- {
- uchar i=0;
- uchar j;
- uint dat=0;
- uchar ndat=0;
- uchar Vot=0;
- if(channel==0)channel=2;
- if(channel==1)channel=3;
-
- ADDI3=1;
- _nop_();
- _nop_();
- ADCS3=0;//拉低CS端
- _nop_();
- _nop_();
- ADCLK3=1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK3=0;//拉低CLK端,形成下降沿1
- _nop_();
- _nop_();
- ADCLK3=1;//拉高CLK端
- ADDI3=channel&0x1;
- _nop_();
- _nop_();
- ADCLK3=0;//拉低CLK端,形成下降沿2
- _nop_();
- _nop_();
- ADCLK3=1;//拉高CLK端
- ADDI3=(channel>>1)&0x1;
- _nop_();
- _nop_();
- ADCLK3=0;//拉低CLK端,形成下降沿3
- ADDI3=1;//控制命令结束
- _nop_();
- _nop_();
- dat=0;
- for(i=0;i<8;i++)
- {
- dat|=ADDO3;//收数据
- ADCLK3=1;
- _nop_();
- _nop_();
- ADCLK3=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- dat<<=1;
- if(i==7)dat|=ADDO3;
- }
- for(i=0;i<8;i++)
- {
- j=0;
- j=j|ADDO3;//收数据
- ADCLK3=1;
- _nop_();
- _nop_();
- ADCLK3=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- j=j<<7;
- ndat=ndat|j;
- if(i<7)ndat>>=1;
- }
- ADCS3=1;//拉低CS端
- ADCLK3=0;//拉低CLK端
- ADDO3=1;//拉高数据端,回到初始状态
- dat<<=8;
- dat|=ndat;
- return(dat); //return ad data
- }
-
- //23
- unsigned int Adc08324(unsigned char channel)
- {
- uchar i=0;
- uchar j;
- uint dat=0;
- uchar ndat=0;
- uchar Vot=0;
- if(channel==0)channel=2;
- if(channel==1)channel=3;
-
- ADDI4=1;
- _nop_();
- _nop_();
- ADCS4=0;//拉低CS端
- _nop_();
- _nop_();
- ADCLK4=1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK4=0;//拉低CLK端,形成下降沿1
- _nop_();
- _nop_();
- ADCLK4=1;//拉高CLK端
- ADDI4=channel&0x1;
- _nop_();
- _nop_();
- ADCLK4=0;//拉低CLK端,形成下降沿2
- _nop_();
- _nop_();
- ADCLK4=1;//拉高CLK端
- ADDI4=(channel>>1)&0x1;
- _nop_();
- _nop_();
- ADCLK4=0;//拉低CLK端,形成下降沿3
- ADDI4=1;//控制命令结束
- _nop_();
- _nop_();
- dat=0;
- for(i=0;i<8;i++)
- {
- dat|=ADDO4;//收数据
- ADCLK4=1;
- _nop_();
- _nop_();
- ADCLK4=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- dat<<=1;
- if(i==7)dat|=ADDO4;
- }
- for(i=0;i<8;i++)
- {
- j=0;
- j=j|ADDO4;//收数据
- ADCLK4=1;
- _nop_();
- _nop_();
- ADCLK4=0;//形成一次时钟脉冲
- _nop_();
- _nop_();
- j=j<<7;
- ndat=ndat|j;
- if(i<7)ndat>>=1;
- }
- ADCS4=1;//拉低CS端
- ADCLK4=0;//拉低CLK端
- ADDO4=1;//拉高数据端,回到初始状态
- dat<<=8;
- dat|=ndat;
- return(dat); //return ad data
- }
-
- // else if(num==4)
- // {
- // //if(channel==0)channel=2;
- // // if(channel==1)channel=3;
- // ADDI4=1;
- // _nop_();
- // _nop_();
- // ADCS4=0;//拉低CS端
- // _nop_();
- // _nop_();
- // ADCLK4=1;//拉高CLK端
- // _nop_();
- // _nop_();
- // ADCLK4=0;//拉低CLK端,形成下降沿1
- // _nop_();
- // _nop_();
- // ADCLK4=1;//拉高CLK端
- // ADDI4=channel&0x1;
- // _nop_();
- // _nop_();
- // ADCLK4=0;//拉低CLK端,形成下降沿2
- // _nop_();
- // _nop_();
- // ADCLK4=1;//拉高CLK端
- // ADDI4=(channel>>1)&0x1;
- // _nop_();
- // _nop_();
- // ADCLK4=0;//拉低CLK端,形成下降沿3
- // ADDI4=1;//控制命令结束
- // _nop_();
- // _nop_();
- // dat=0;
- // for(i=0;i<8;i++)
- // {
- // dat|=ADDO4;//收数据
- // ADCLK4=1;
- // _nop_();
- // _nop_();
- // ADCLK4=0;//形成一次时钟脉冲
- // _nop_();
- // _nop_();
- // dat<<=1;
- // if(i==7)dat|=ADDO4;
- // }
- // for(i=0;i<8;i++)
- // {
- // j=0;
- // j=j|ADDO4;//收数据
- // ADCLK4=1;
- // _nop_();
- // _nop_();
- // ADCLK4=0;//形成一次时钟脉冲
- // _nop_();
- // _nop_();
- // j=j<<7;
- // ndat=ndat|j;
- // if(i<7)ndat>>=1;
- // }
- // ADCS4=1;//拉低CS端
- // ADCLK4=0;//拉低CLK端
- // ADDO4=1;//拉高数据端,回到初始状态
- // dat<<=8;
- // dat|=ndat;
- // return(dat); //return ad data
- //
- // }
- // else;
- //
- // //return(dat); //return ad data
- // }
- /***********************************************************************************************************
- DS18B20相关函数
- ***********************************************************************************************************/
- /***********************************************************************************************************
- DS18B20相关函数
- ***********************************************************************************************************/
- void ds1Init()
- {
-
- unsigned int i;
- ds1 = 0;
- i = 100;
- while(i>0) i--;
- ds1 = 1;
- i = 4;
- while(i>0) i--;
- }
-
- void ds1Wait()
- {
- unsigned int i;
- while(ds1);
- while(~ds1);
- i = 4;
- while(i > 0) i--;
- }
- void ds2Init()
- {
-
- unsigned int i;
- ds2 = 0;
- i = 100;
- while(i>0) i--;
- ds2 = 1;
- i = 4;
- while(i>0) i--;
- }
-
- void ds2Wait()
- {
- unsigned int i;
- while(ds2);
- while(~ds2);
- i = 4;
- while(i > 0) i--;
- }
- void ds3Init()
- {
-
- unsigned int i;
- ds3 = 0;
- i = 100;
- while(i>0) i--;
- ds3 = 1;
- i = 4;
- while(i>0) i--;
- }
-
- void ds3Wait()
- {
- unsigned int i;
- while(ds3);
- while(~ds3);
- i = 4;
- while(i > 0) i--;
- }
- void ds4Init()
- {
-
- unsigned int i;
- ds4 = 0;
- i = 100;
- while(i>0) i--;
- ds4 = 1;
- i = 4;
- while(i>0) i--;
- }
-
- void ds4Wait()
- {
- unsigned int i;
- while(ds4);
- while(~ds4);
- i = 4;
- while(i > 0) i--;
- }
- //************************************功能函数
- bit readBit1()
- {
- unsigned int i;
- bit b;
- ds1 = 0;
- i++;
- ds1 = 1;
- i++; i++;
- b = ds1;
- i = 8;
- while(i>0) i--;
- return b;
- }
- unsigned char readByte1()
- {
- unsigned int i;
- unsigned char j, dat;
- dat = 0;
- for(i=0; i<8; i++)
- {
- j = readBit1();
-
- dat = (j << 7) | (dat >> 1);
- }
- return dat;
- }
- void writeByte1(unsigned char dat)
- {
- unsigned int i;
- unsigned char j;
- bit b;
- for(j = 0; j < 8; j++)
- {
- b = dat & 0x01;
- dat >>= 1;
-
- if(b)
- {
- ds1 = 0; i++; i++;
- ds1 = 1;
- i = 8; while(i>0) i--;
- }
- else
- {
- ds1 = 0;
- i = 8; while(i>0) i--;
- ds1 = 1;
- i++; i++;
- }
- }
- }
- //2
- bit readBit2()
- {
- unsigned int i;
- bit b;
- ds2 = 0;
- i++;
- ds2 = 1;
- i++; i++;
- b = ds2;
- i = 8;
- while(i>0) i--;
- return b;
- }
- unsigned char readByte2()
- {
- unsigned int i;
- unsigned char j, dat;
- dat = 0;
- for(i=0; i<8; i++)
- {
- j = readBit2();
-
- dat = (j << 7) | (dat >> 1);
- }
- return dat;
- }
- void writeByte2(unsigned char dat)
- {
- unsigned int i;
- unsigned char j;
- bit b;
- for(j = 0; j < 8; j++)
- {
- b = dat & 0x01;
- dat >>= 1;
-
- if(b)
- {
- ds2 = 0; i++; i++;
- ds2 = 1;
- i = 8; while(i>0) i--;
- }
- else
- {
- ds2 = 0;
- i = 8; while(i>0) i--;
- ds2 = 1;
- i++; i++;
- }
- }
- }
- //3
- bit readBit3()
- {
- unsigned int i;
- bit b;
- ds3 = 0;
- i++;
- ds3 = 1;
- i++; i++;
- b = ds3;
- i = 8;
- while(i>0) i--;
- return b;
- }
- unsigned char readByte3()
- {
- unsigned int i;
- unsigned char j, dat;
- dat = 0;
- for(i=0; i<8; i++)
- {
- j = readBit3();
-
- dat = (j << 7) | (dat >> 1);
- }
- return dat;
- }
- void writeByte3(unsigned char dat)
- {
- unsigned int i;
- unsigned char j;
- bit b;
- for(j = 0; j < 8; j++)
- {
- b = dat & 0x01;
- dat >>= 1;
-
- if(b)
- {
- ds3 = 0; i++; i++;
- ds3 = 1;
- i = 8; while(i>0) i--;
- }
- else
- {
- ds3 = 0;
- i = 8; while(i>0) i--;
- ds3 = 1;
- i++; i++;
- }
- }
- }
- //4
- bit readBit4()
- {
- unsigned int i;
- bit b;
- ds4 = 0;
- i++;
- ds4 = 1;
- i++; i++;
- b = ds4;
- i = 8;
- while(i>0) i--;
- return b;
- }
- unsigned char readByte4()
- {
- unsigned int i;
- unsigned char j, dat;
- dat = 0;
- for(i=0; i<8; i++)
- {
- j = readBit4();
-
- dat = (j << 7) | (dat >> 1);
- }
- return dat;
- }
- void writeByte4(unsigned char dat)
- {
- unsigned int i;
- unsigned char j;
- bit b;
- for(j = 0; j < 8; j++)
- {
- b = dat & 0x01;
- dat >>= 1;
-
- if(b)
- {
- ds4 = 0; i++; i++;
- ds4 = 1;
- i = 8; while(i>0) i--;
- }
- else
- {
- ds4 = 0;
- i = 8; while(i>0) i--;
- ds4 = 1;
- i++; i++;
- }
- }
- }
- //发送转换命令
- void sendChangeCmd(unsigned char num)
- {
- if(num==1)
- {
- ds1Init();
- ds1Wait();
- delayMs(1);
- writeByte1(0xcc);
- writeByte1(0x44);
- }
- else if(num==2)
- {
- ds2Init();
- ds2Wait();
- delayMs(1);
- writeByte2(0xcc);
- writeByte2(0x44);
- }
- else if(num==3)
- {
- ds3Init();
- ds3Wait();
- delayMs(1);
- writeByte3(0xcc);
- writeByte3(0x44);
- }
- else if(num==4)
- {
- ds4Init();
- ds4Wait();
- delayMs(1);
- writeByte4(0xcc);
- writeByte4(0x44);
- }
- else;
-
- }
- void sendReadCmd(unsigned char num)
- {
- if(num==1)
- {
- ds1Init();
- ds1Wait();
- delayMs(1);
- writeByte1(0xcc);
- writeByte1(0xbe);
- }
- else if(num==2)
- {
- ds2Init();
- ds2Wait();
- delayMs(1);
- writeByte2(0xcc);
- writeByte2(0xbe);
- }
- else if(num==3)
- {
- ds3Init();
- ds3Wait();
- delayMs(1);
- writeByte3(0xcc);
- writeByte3(0xbe);
- }
- else if(num==4)
- {
- ds4Init();
- ds4Wait();
- delayMs(1);
- writeByte4(0xcc);
- writeByte4(0xbe);
- }
- else;
-
- }
- int getTmpValue(unsigned char num)
- {
- unsigned int tmpvalue;
- int value;
- float t;
- unsigned char low, high;
- sendReadCmd(num);
-
- if(num==1)
- {
- low = readByte1();
- high = readByte1();
- }
- else if(num==2)
- {
- low = readByte2();
- high = readByte2();
- }
- else if(num==3)
- {
- low = readByte3();
- high = readByte3();
- }
- else if(num==4)
- {
- low = readByte4();
- high = readByte4();
- }
- else;
- tmpvalue = high;
- tmpvalue <<= 8;
- tmpvalue |= low;
- value = tmpvalue;
-
- \
- t = value * 0.0625;
- \
- value = t * 100 + (value > 0 ? 0.5 : -0.5); //大于0加0.5, 小于0减0.5
- return value;
- }
- void display(int v, unsigned char num)
- {
- unsigned char count;
- unsigned char datas[] = {0, 0, 0, 0, 0};
- unsigned int tmp = abs(v);
- datas[0] = tmp / 10000;
- datas[1] = tmp % 10000 / 1000;
- datas[2] = tmp % 1000 / 100;
- datas[3] = tmp % 100 / 10;
- datas[4] = tmp % 10;
- if(num==1)
- {
- write_com(0x80+2);
- if(v < 0)
- {
- writeString("-", 1);
- }
- else
- {
- writeString("+", 1);
- }
- if(datas[0] != 0)
- {
- write_data('0'+datas[0]);
- }
- for(count = 1; count != 4; count++)
- {
- write_data('0'+datas[count]);
- if(count == 2)
- {
- write_data('.');
- }
- }
- }
- else if(num==2)
- {
- write_com(0x80+11);
- if(v < 0)
- {
- writeString("-", 1);
- }
- else
- {
- writeString("+", 1);
- }
- if(datas[0] != 0)
- {
- write_data('0'+datas[0]);
- }
- for(count = 1; count != 4; count++)
- {
- write_data('0'+datas[count]);
- if(count == 2)
- {
- write_data('.');
- }
- }
- }
- else if(num==3)
- {
- write_com(0xc0+2);
- if(v < 0)
- {
- writeString("-", 1);
- }
- else
- {
- writeString("+", 1);
- }
- if(datas[0] != 0)
- {
- write_data('0'+datas[0]);
- }
- for(count = 1; count != 4; count++)
- {
- write_data('0'+datas[count]);
- if(count == 2)
- {
- write_data('.');
- }
- }
- }
- else if(num==4)
- {
- write_com(0xC0+11);
- if(v < 0)
- {
- writeString("-", 1);
- }
- else
- {
- writeString("+", 1);
- }
- if(datas[0] != 0)
- {
- write_data('0'+datas[0]);
- }
- for(count = 1; count != 4; count++)
- {
- write_data('0'+datas[count]);
- if(count == 2)
- {
- write_data('.');
- }
- }
- }
- }
- /**//*****************************DS18B20*******************************/
-
- /***********************************************************************************************************
- 按键检测相关函数
- ***********************************************************************************************************/
- //按键
- sbit Key1=P1^6; //设置键
- sbit Key2=P1^7; //加按键
- sbit Key3=P3^2; //减按键
- #define KEY_SET 1 //设置
- #define KEY_ADD 2 //加
- #define KEY_MINUS 3 //减
- //========================================================================
- // 函数: u8 Key_Scan()
- // 应用: temp=u8 Key_Scan();
- // 描述: 按键扫描并返回按下的键值
- // 参数: NONE
- // 返回: 按下的键值
- // 版本: VER1.0
- // 日期: 2015-05-29
- // 备注: 该函数带松手检测,按下键返回一次键值后返回0,直至第二次按键按下
- //========================================================================
- u8 Key_Scan()
- {
- static u8 key_up=1;//按键按松开标志
- if(key_up&&(Key1==0||Key2==0||Key3==0))
- {
- delay_ms(10);//去抖动
- key_up=0;
- if(Key1==0) return 1;
- else if(Key2==0)return 2;
- else if(Key3==0)return 3;
- }
- else if(Key1==1&&Key2==1&&Key3==1)
- key_up=1;
- return 0;// 无按键按下
- }
- unsigned char table1[] = "T1";
- unsigned char table2[] = "T2";
- unsigned char table3[] = "T3";
- unsigned char table4[] = "T4";
- unsigned char table5[] = "P1";
- unsigned char table6[] = "P2";
- unsigned char table7[] = "P3";
- unsigned char table8[] = "P4";
- void main (void)
- {
- u8 key;
-
- Init1604(); //调用初始化显示函数
- // LCD_Write_String(0,0,"NOW T:00.0 P:000");
- // LCD_Write_String(1,0,"NOW T:00.0 P:000");
- // LCD_Write_String(2,0,"NOW T:00.0 P:000");
-
- write_com(0x80);
- writeString(table1, 2);
- write_com(0x89);
- writeString(table2, 2);
- write_com(0xc0);
- writeString(table3, 2);
- write_com(0xc9);
- writeString(table4, 2);
-
- write_com(0x90);
- writeString(table5, 2);
- write_com(0x99);
- writeString(table6, 2);
- write_com(0xd0);
- writeString(table7, 2);
- write_com(0xd9);
- writeString(table8, 2);
- delay_ms(1000);
- while (1) //主循环
- {
- key=Key_Scan(); //按键扫描
- yali1=Adc08321(0); //读取烟雾值
- delay_ms(10);
- yali2=Adc08322(0); //读取烟雾值
- delay_ms(10);
- yali3=Adc08323(0); //读取烟雾值
- delay_ms(10);
- yali4=Adc08324(0); //读取烟雾值
- delay_ms(10);
- // yali2=Adc0832(0,2); //读取烟雾值
- write_com(0xc0);
- display(getTmpValue(1),1);
- sendChangeCmd(1);
-
- write_com(0xc0);
- display(getTmpValue(2),2);
- sendChangeCmd(2);
-
- write_com(0xc0);
- display(getTmpValue(3),3);
- sendChangeCmd(3);
-
- write_com(0xc0);
- display(getTmpValue(4),4);
- sendChangeCmd(4);
-
- if(key==KEY_SET)
- {
- Mode++;
- }
-
- switch(Mode) //判断模式的值
- {
- case 0: //监控模式
- {
- Display_1604(yali1,yali2,yali3,yali4); //显示预设温度,预设烟雾,温度值,烟雾值
- if(yali1>=yushe_yali) //烟雾值大于等于预设值时
- {
- Fan=0;
- Buzzer=0; //蜂鸣器报警
- }
- else //烟雾值小于预设值时
- {
- Fan=1;
- }
- if(wendu>=(yushe_wendu*10)) //温度大于等于预设温度值时(为什么是大于预设值*10:因为我们要显示的温度是有小数点后一位,是一个3位数,25.9°C时实际读的数是259,所以判断预设值时将预设值*10)
- {
- Buzzer=0; //打开蜂鸣器报警
- }
- else //温度值小于预设值时
- {
- }
- if((yali1<yushe_yali)&&(wendu<(yushe_wendu*10))) //当烟雾小于预设值并且温度也小于预设值时 (&&:逻辑与,左右两边的表达式都成立(都为真,也就是1)时,该if语句才成立)
- {
- Buzzer=1; //停止报警
- }
- break;
- }
- case 1://预设温度模式
- {
- SelectPosition(0,5) ; //指定位置
- write_com(0x0d); //阴影闪烁
- if(key==KEY_ADD) //加键按下
- {
- yushe_wendu++; //预设温度值(阀值)加1
- if(yushe_wendu>=120) //当阀值加到大于等于99时
- yushe_wendu=120; //阀值固定为99
- LCD_Write_Char(0,6,yushe_wendu,2) ;//显示预设温度
- }
- if(key==KEY_MINUS) //减键按下
- {
- if(yushe_wendu<=1) //当温度上限值减小到1时
- yushe_wendu=1; //固定为1
- yushe_wendu--; //预设温度值减一,最小为0
- LCD_Write_Char(0,6,yushe_wendu,2) ;//显示预设温度
- }
- break; //执行后跳出switch
- }
- case 2: //预设烟雾模式
- {
- SelectPosition(0,12) ; //指定位置
- write_com(0x0d); //打开显示 无光标 光标闪烁
- if(key==KEY_ADD) //加键按下
- {
- if(yushe_yali>=255) //当阀值加到大于等于255时
- yushe_yali=254; //阀值固定为254
- yushe_yali++; //预设烟雾值(阀值)加1,最大为255
- LCD_Write_Char(0,13,yushe_yali,3) ;//显示预设烟雾
- }
- if(key==KEY_MINUS) //减键按下
- {
- if(yushe_yali<=1) //当烟雾上限值减小到1时
- yushe_yali=1; //固定为1
- yushe_yali--; //预设温度值减一,最小为0
- LCD_Write_Char(0,13,yushe_yali,3) ;//显示预设烟雾
- }
- break;
- }
- default :
- {
- write_com(0x38);//屏幕初始化
- write_com(0x0c);//打开显示 无光标 无光标闪烁
- Mode=0; //恢复正常模式
- break;
- }
- }
-
- }
- }
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