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- #include<AT89X52.h>
- #include<intrins.h>
- #include<DS18B20.h>
- #define uintunsigned int
- #define ucharunsigned char //宏定義
- #define SETP1_0 //定義調(diào)整鍵
- #define DECP1_1 //定義減少鍵
- #define ADDP1_2 //定義增加鍵
- #define BEEPP3_4 //定義蜂鳴器
- #define hujiaoP1_3
- sbit HC = P1^5;//
- sbit ADCS =P3^7;
- sbit ADCLK =P3^5;
- sbit ADDI =P3^6;
- sbit ADDO =P3^6;
- bitshanshuo_st; //閃爍間隔標(biāo)志
- bitbeep_st; //蜂鳴器間隔標(biāo)志
- bit flag=0;//緊急呼叫標(biāo)志
- sbit DIAN =P2^5; //小數(shù)點
- uint abc;
- uchar x=4; //計數(shù)器
- signed charm; //溫度值全局變量
- uchar n; //溫度值全局變量
- ucharset_st=0; //狀態(tài)標(biāo)志
- signed charshangxian=30; //上限報警溫度,默認(rèn)值為30
- signed charxiaxian=5; //下限報警溫度,默認(rèn)值為5
- uchar nongdu=4;
- uchar codeLEDData[]={0x28,0xeb,0x32,0xa2,0xe1,0xa4,0x24,0xea,0x20,0xa0};
- /*****延時子程序*****/
- void Delay(uintnum)
- {
- while( --num );
- }
- /*****初始化定時器0*****/
- voidInitTimer(void)
- {
- TMOD=0x1;
- TH0=0x4c;
- TL0=0x00; //50ms(晶振11.0592M)
- }
- /*****定時器0中斷服務(wù)程序*****/
- voidtimer0(void) interrupt 1
- {
- TH0=0x4c;
- TL0=0x00;
- x++;
- }
- /*****讀取溫度*****/
- voidcheck_wendu(void)
- {
- uint a,b,c;
- c=ReadTemperature()-5;//獲取溫度值并減去DS18B20的溫漂誤差
- a=c/100; //計算得到十位數(shù)字
- b=c/10-a*10; //計算得到個位數(shù)字
- m=c/10; //計算得到整數(shù)位
- n=c-a*100-b*10; //計算得到小數(shù)位
- if(m<0){m=0;n=0;} //設(shè)置溫度顯示上限
- if(m>99){m=99;n=9;} //設(shè)置溫度顯示上限
- }
- /*****顯示開機初始化等待畫面*****/
- Disp_init()
- {
- P2 = 0xf7; //顯示-
- P0 = 0xbf;
- Delay(200);
- P0 = 0xef;
- Delay(200);
- P0 = 0xfb;
- Delay(200);
- P0 = 0xfe;
- Delay(200);
- P0 = 0xff; //關(guān)閉顯示
- }
- /*****顯示溫度子程序*****/
- Disp_Temperature() //顯示溫度
- {
- P2=LEDData[m%10]; //顯示C
- P0 = 0xbf;
- Delay(300);
- P2=LEDData[m/10]; //顯示個位
- P0 = 0xef;
- Delay(300);
- P2 =0xf7; //顯示十位
- P0 = 0xfb;
- Delay(300);
- P2=LEDData[abc]; //顯示百位
- P0 = 0xfe;
- Delay(300);
- P0 = 0xff; //關(guān)閉顯示
- }
- /*****顯示報警溫度子程序*****/
- Disp_alarm(ucharbaojing)
- {
- P2 =0x3c; //顯示C
- P0 = 0xbf;
- Delay(200);
- P2=LEDData[baojing%10]; //顯示十位
- P0 = 0xef;
- Delay(200);
- P2=LEDData[baojing/10]; //顯示百位
- P0 = 0xfb;
- Delay(200);
- if(set_st==1)P2=0x61;
- else if(set_st==2)P2=0x3d; //上限H、下限L標(biāo)示
- P0 = 0xfe;
- Delay(200);
- P0 = 0xff; //關(guān)閉顯示
- }
- Disp_nongdu(ucharbaojing)//煙霧濃度報警顯示
- {
- P2 =0xff;
- P0 = 0xbf;
- Delay(200);
- P2 =0xff;
- P0 = 0xef;
- Delay(200);
- P2 =0xff;
- P0 = 0xfb;
- Delay(200);
- P2=LEDData[baojing];//顯示濃度
- P0 = 0xfe;
- Delay(200);
- P0 = 0xff; //關(guān)閉顯示
- }
- /*****報警子程序*****/
- void Alarm()
- {
- if((m>=shangxian&&beep_st==1)||(m<xiaxian&&beep_st==1))BEEP=1;
- elseif(abc>=nongdu&&beep_st==1) BEEP=1;
- //else if( HC == 1)BEEP = 1; //
- else BEEP=0;
- if(x>=10){beep_st=~beep_st;x=0;}
- }
- void Alarm1()
- {
- if(x>=10){beep_st=~beep_st;x=0;}
- if(beep_st==1)BEEP=1;
- else BEEP=0;
- }
- ucharADC0832(bit mode,bit channel) //AD轉(zhuǎn)換,返回結(jié)果
- {
- uchar i,dat,ndat;
-
- ADCS = 0;//拉低CS端
- _nop_();
- _nop_();
-
- ADDI = 1; //第1個下降沿為高電平
- ADCLK = 1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK = 0;//拉低CLK端,形成下降沿1
- _nop_();
- _nop_();
-
- ADDI = mode; //低電平為差分模式,高電平為單通道模式。
- ADCLK = 1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK = 0;//拉低CLK端,形成下降沿2
- _nop_();
- _nop_();
-
- ADDI = channel; //低電平為CH0,高電平為CH1
- ADCLK = 1;//拉高CLK端
- _nop_();
- _nop_();
- ADCLK = 0;//拉低CLK端,形成下降沿3
-
- ADDI = 1;//控制命令結(jié)束(經(jīng)試驗必需)
- dat = 0;
- //下面開始讀取轉(zhuǎn)換后的數(shù)據(jù),從最高位開始依次輸出(D7~D0)
- for(i = 0;i < 8;i++)
- {
- dat <<= 1;
- ADCLK=1;//拉高時鐘端
- _nop_();
- _nop_();
- ADCLK=0;//拉低時鐘端形成一次時鐘脈沖
- _nop_();
- _nop_();
- dat |= ADDO;
- }
- ndat = 0; //記錄D0
- if(ADDO == 1)
- ndat |= 0x80;
- //下面開始繼續(xù)讀取反序的數(shù)據(jù)(從D1到D7)
- for(i = 0;i < 7;i++)
- {
- ndat >>= 1;
- ADCLK = 1;//拉高時鐘端
- _nop_();
- _nop_();
- ADCLK=0;//拉低時鐘端形成一次時鐘脈沖
- _nop_();
- _nop_();
- if(ADDO==1)
- ndat |= 0x80;
- }
- ADCS=1;//拉高CS端,結(jié)束轉(zhuǎn)換
- ADCLK=0;//拉低CLK端
- ADDI=1;//拉高數(shù)據(jù)端,回到初始狀態(tài)
- if(dat==ndat)
- return(dat);
- else
- return 0;
- }
- /*****主函數(shù)*****/
- void main(void)
- {
- uint z;
- InitTimer(); //初始化定時器
- EA=1; //全局中斷開關(guān)
- TR0=1;
- ET0=1; //開啟定時器0
- BEEP=0;
- //
- check_wendu();
- check_wendu();
- for(z=0;z<300;z++)
- {
- Disp_init();
- }
- while(1)
- {
- HC = 1;
- if( HC == 1)BEEP= 1;
- if(hujiao==0)
- {
- Delay(2000);
- do{}while(hujiao==0);
- flag=~flag;
- }
- if(SET==0)
- {
- Delay(2000);
- do{}while(SET==0);
- set_st++;x=0;shanshuo_st=1;
- if(set_st>3)set_st=0;
- }
- if(set_st==0)
- {
- abc = ADC0832(1,0); //差分模式,CH0-CH1
- abc = abc*19.607843; //轉(zhuǎn)換為實際電壓便于顯示
- abc=abc/1000%10;
- check_wendu();
- Disp_Temperature();
- if(flag==1)Alarm1();
- else Alarm(); //報警檢測
- }
- else if(set_st==1)
- {
- BEEP=0; //關(guān)閉蜂鳴器
- if(DEC==0)
- {
- Delay(2000);
- do{}while(DEC==0);
- shangxian--;
- if(shangxian<xiaxian)shangxian=xiaxian;
- }
- if(ADD==0)
- {
- Delay(2000);
- do{}while(ADD==0);
- shangxian++;
- if(shangxian>99)shangxian=99;
- }
- if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
- if(shanshuo_st) {Disp_alarm(shangxian);}
- }
- elseif(set_st==2)
- {
- BEEP=0; //關(guān)閉蜂鳴器
- if(DEC==0)
- {
- Delay(2000);
- do{}while(DEC==0);
- xiaxian--;
- if(xiaxian<0)xiaxian=0;
- }
- if(ADD==0)
- {
- Delay(2000);
- do{}while(ADD==0);
- xiaxian++;
- if(xiaxian>shangxian)xiaxian=shangxian;
- }
- if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
- if(shanshuo_st) {Disp_alarm(xiaxian);}
- }
- elseif(set_st==3)
- {
- BEEP=0; //關(guān)閉蜂鳴器
- if(DEC==0)
- {
- Delay(2000);
- do{}while(DEC==0);
- if(nongdu>0)
- nongdu--;
- if(nongdu<1)nongdu=0;
- }
- if(ADD==0)
- {
- Delay(2000);
- do{}while(ADD==0);
- nongdu++;
- if(nongdu>5)nongdu=5;
- }
- if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
- if(shanshuo_st) {Disp_nongdu(nongdu);}
- }
- }
- }
- #include<AT89X52.h>
- #define DQP3_3 //定義DS18B20總線I/O
- /*****延時子程序*****/
- voidDelay_DS18B20(int num)
- {
- while(num--) ;
- }
- /*****初始化DS18B20*****/
- voidInit_DS18B20(void)
- {
- unsigned charx=0;
- DQ = 1; //DQ復(fù)位
- Delay_DS18B20(8); //稍做延時
- DQ = 0; //單片機將DQ拉低
- Delay_DS18B20(80); //精確延時,大于480us
- DQ = 1; //拉高總線
- Delay_DS18B20(14);
- x = DQ; //稍做延時后,如果x=0則初始化成功,x=1則初始化失敗
- Delay_DS18B20(20);
- }
- /*****讀一個字節(jié)*****/
- unsigned charReadOneChar(void)
- {
- unsigned chari=0;
- unsigned chardat = 0;
- for(i=8;i>0;i--)
- {
- DQ = 0; // 給脈沖信號
- dat>>=1;
- DQ = 1; // 給脈沖信號
- if(DQ)
- dat|=0x80;
- Delay_DS18B20(4);
- }
- return(dat);
- }
- /*****寫一個字節(jié)*****/
- voidWriteOneChar(unsigned char dat)
- {
- unsigned chari=0;
- for (i=8;i>0; i--)
- {
- DQ = 0;
- DQ = dat&0x01;
- Delay_DS18B20(5);
- DQ = 1;
- dat>>=1;
- }
- }
- /*****讀取溫度*****/
- unsigned intReadTemperature(void)
- {
- unsigned chara=0;
- unsigned charb=0;
- unsigned intt=0;
- float tt=0;
- Init_DS18B20();
- WriteOneChar(0xCC);//跳過讀序號列號的操作
- WriteOneChar(0x44);//啟動溫度轉(zhuǎn)換
- Init_DS18B20();
- WriteOneChar(0xCC);//跳過讀序號列號的操作
- WriteOneChar(0xBE);//讀取溫度寄存器
- a=ReadOneChar(); //讀低8位
- b=ReadOneChar(); //讀高8位
- t=b;
- t<<=8;
- t=t|a;
- tt=t*0.0625;
- t=tt*10+0.5; //放大10倍輸出并四舍五入
- return(t);
- }
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C程序.docx
2018-5-7 19:04 上傳
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