/****************************************************/
#include <reg52.h>
#include "intrins.h"
#include "1602.h"
#include "DS18B20.h"
#include "AT.h"
#define uint unsigned int
#define uchar unsigned char
sbit speaker=P2^3;
sbit P1_0=P1^0; /*P1_0~P1_3键盘*/
sbit P1_1=P1^1;
sbit P1_2=P1^2;
sbit P1_3=P1^3;
uchar i,w_num=0;
uchar n=0;
uchar a=0x87;
uchar ii=0;
uint temp,save_low,save_high;
uchar warn_mark=1,key_warn=0;//1默认启动
char zhifu[17]="T: Link:N*",low[8]="L_temp*",high[9]="H_temp*";//*结束标志
uchar code ditab[16]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x09};//温度小数位表值
uchar data temp_data[2]={0x00,0x00}; //温度数据存储
uchar display[5]={0x30,0x30,0x30},save[2]={0xD0,0x07},save_h[2]={0x90,0xfc}; //温度LCD编码
uchar sendtemp[6]={0x41,0x00,0x2e,0x00};
uchar lowtemp[5]={0x30,0x32,0x35,hightemp[5]={0x30,0x37,0x30}; //正常温度范围
/************延时函数*************/
/*********************初始化函数*********************/
void Init(void)
{
Write_Instruction(0x38);
Delay(20);
Write_Instruction(0x0c);
Delay(20);
Write_Instruction(0x06);
Delay(20);
Cls();
TMOD=0X20;
TH1=0XF3;TL1=0XF3;
SCON=0X50;
TR1=1;
//EA=1;
//ES=1;
speaker=1;//报警声默认关闭
P1=0x0f;
AT24C64_R(save,2);
save_low=save[1];
save_low=save_low<<8;
save_low=save_low|save[0];

AT24C64_R(lowtemp,5);
AT24C64_R(hightemp,5);

AT24C64_R(save_h,0x10,2); save_high=save_h[1]; save_high=save_high<<8; save_high=save_high|save_h[0];}/****************读出温度函数************************/read_temp(){ ow_reset(); //总线复位 Delay(200); write_byte(0xcc); //发命令 write_byte(0x44); //发转换命令 ow_reset(); Delay(1); write_byte(0xcc); //发命令 write_byte(0xbe); temp_data[0]=read_byte(); //读温度值的低字节 temp_data[1]=read_byte(); //读温度值的高字节 temp=temp_data[1]; temp<<=8; temp=temp|temp_data[0]; // 两字节合成一个整型变量。 return temp; //返回温度值}/****************温度值编码**************************/void work_temp(uint tem){n=0; if((tem<6348&&save_low<6348&&tem<save_low)||(tem>6348&&save_low>6348&&tem<save_low)||(tem>6348&&save_low<6348)){save_low=tem;save[0]=save_low;//&0x00ff;save[1]=(save_low>>8);//&0x00ff;AT24C64_W(save,2);}if((tem<6348&&save_high<6348&&tem>save_high)||(tem<6348&&save_high>6348)||(tem>6348&&save_high>6348&&tem>save_high)){save_high=tem;save_h[0]=save_high;//&0x00ff;save_h[1]=(save_high>>8);//&0x00ff;AT24C64_W(save_h,2);}if(tem>6348) // 温度值正负判断 {tem=65536-tem;n=1;} // 负温度求补码,标志位置1 display[4]=tem&0x0f; // 取小数部分的值 display[0]=ditab[display[4]]; // 存入小数部分显示值 display[4]=tem>>4; // 取中间八位,即整数部分的值 display[3]=display[4]/100; // 取百位数据暂存 display[1]=display[4]%100; // 取后两位数据暂存 display[2]=display[1]/10; // 取十位数据暂存 display[1]=display[1]%10; /******************符号位显示判断**************************/ display[3]=display[3]+0x30; display[2]=display[2]+0x30; display[1]=display[1]+0x30; display[0]=display[0]+0x30; if(display[3]==0x30) { display[3]=0x20; //最高位为0时不显示 if(display[2]==0x30){ display[2]=0x20; //次高位为0时不显示} } if(n) {display[3]=0x2d;} //负温度时最高位显示"-"}/****************显示温度函数************************/void showtemp(){ work_temp(read_temp()); //处理温度数据 Write_Instruction(0x82); Write_Data(display[3]); Write_Data(display[2]); Write_Data(display[1]); Write_Data(0X2E); Write_Data(display[0]); Write_Data(0xdf); Write_Data(0x43);}/****************显示报警温度范围********************/void show_high_low(){ Write_Instruction(0xc7); Write_Data(lowtemp[0]); Write_Data(lowtemp[1]); Write_Data(lowtemp[2]); Write_Data(0X2E); Write_Data(lowtemp[4]); Write_Instruction(0x87); Write_Data(hightemp[0]); Write_Data(hightemp[1]); Write_Data(hightemp[2]); Write_Data(0X2E); Write_Data(hightemp[4]); if(warn_mark==0) Write_String(0xcd," ON*"); else Write_String(0xcd,"OFF*");}/*************温度是否超出范围判断及显示*************/void show_warn_extent(){uint display4,display3,high4,low4,low3,high3;if(display[3]==0x20)display[3]=0x30;if(display[2]==0x20)display[2]=0x30;high3=hightemp[1]*100+hightemp[2]*10+hightemp[4];high4=hightemp[0]*1000+high3;low3=lowtemp[1]*100+lowtemp[2]*10+lowtemp[4];low4=lowtemp[0]*1000+low3;display3=display[2]*100+display[1]*10+display[0];display4=display[3]*1000+display3;if(hightemp[0]!=0x2d&&lowtemp[0]!=0x2d&&display[3]!=0x2d &&high4>=display4&&display4>=low4)Write_String(0xCC,"WELL*");else if(hightemp[0]!=0x2d&&lowtemp[0]==0x2d&&display[3]!=0x2d &&high4>=display4)Write_String(0xCC,"WELL*");else if(hightemp[0]!=0x2d&&lowtemp[0]==0x2d&&display[3]==0x2d &&low3>=display3)Write_String(0xCC,"WELL*");else if(hightemp[0]==0x2d&&lowtemp[0]==0x2d&&display[3]==0x2d &&high3<=display3&&display3<=low3)Write_String(0xCC,"WELL*");else{Write_String(0xCC,"WARN*");if(warn_mark==1)speaker=0;elsespeaker=1;} }void show_limits(){uchar j;Write_Instruction(0xc0);for(j=0;j<5;j++)Write_Data(lowtemp[j]);Write_Data(0x7e);for(j=0;j<5;j++)Write_Data(hightemp[j]);}void send_temp(){i=0;sendtemp[1]=display[3];sendtemp[2]=display[2];sendtemp[3]=display[1];sendtemp[5]=display[0];while(i<6){SBUF=sendtemp[i];while(!TI);TI=0;i++;}}/****************报警温度调节************************/void change_warn_temp(){ uint high_temp,low_temp; Delay(200); while(!P1_0); Cls(); Write_String(0x80,high); Write_String(0xc0,low); show_high_low(); while(1) { Write_Instruction(a+ii); Write_Instruction(0x0f); if(P1_1==0) { Delay(200); while(!P1_1); if(a==0x87) { ii++; if(ii==3) ii++; if(ii==5) { ii=0; a=0xc7;continue; } } if(a==0xc7) { ii++; if(ii==3) ii++; if(ii==5) ii=7; if(ii==8) { ii=0;a=0x87;continue; } } } if(P1_2==0) { Delay(200); while(!P1_2); if(a==0x87) { hightemp[ii]++; if(hightemp[0]==0x32) hightemp[0]=0x2d; if(hightemp[0]==0x2e) hightemp[0]=0x30; if(hightemp[0]==0x2d&&hightemp[1]==0x36) hightemp[1]=0x30; if(hightemp[0]==0x31&&hightemp[1]==0x33) hightemp[1]=0x30; if(hightemp[0]==0x2d&&hightemp[1]==0x35&&hightemp[2]==0x36) hightemp[2]=0x30; if(hightemp[ii]==0x3a) hightemp[ii]=0x30; } if(a==0xc7) { if(ii==7&&warn_mark==1) {warn_mark=0;key_warn=1; } else if(ii==7&&warn_mark==0) { warn_mark=1;key_warn=0;} else { warn_mark=1; lowtemp[ii]++; if(lowtemp[0]==0x32) lowtemp[0]=0x2d; if(lowtemp[0]==0x2e) lowtemp[0]=0x30; if(lowtemp[0]==0x2d&&lowtemp[1]==0x36) lowtemp[1]=0x30; if(lowtemp[0]==0x31&&lowtemp[1]==0x33) lowtemp[1]=0x30; if(lowtemp[0]==0x2d&&lowtemp[1]==0x35&&lowtemp[2]==0x36) lowtemp[2]=0x30; if(lowtemp[ii]==0x3a) lowtemp[ii]=0x30; if(hightemp[0]==0x2d) { lowtemp[0]=0x2d; if(lowtemp[1]<hightemp[1]) { lowtemp[1]=hightemp[1]; } if(lowtemp[2]<hightemp[2]) { lowtemp[2]=hightemp[2]; } if(lowtemp[4]<hightemp[4]) { lowtemp[4]=hightemp[4]; } } if(hightemp[0]!=0x2d) { if(lowtemp[0]>=0x30) { if(lowtemp[0]>hightemp[0]) { lowtemp[0]=0x2d; } if(lowtemp[1]>hightemp[1]&&lowtemp[0]==hightemp[0]) { lowtemp[1]=0x30; } if(lowtemp[2]>hightemp[2]&&lowtemp[1]==hightemp[1]&&lowtemp[0]==hightemp[0]) { lowtemp[2]=0x30; } if(lowtemp[4]>hightemp[4]&&lowtemp[2]==hightemp[2]&&lowtemp[1]==hightemp[1]&&lowtemp[0]==hightemp[0]) { lowtemp[4]=0x30; } } } } } show_high_low(); } if(P1_0==0) { Delay(200); while(!P1_0); if(hightemp[0]>=0x30) { high_temp=hightemp[0]*1000+hightemp[1]*100+hightemp[2]*10+hightemp[4]; low_temp=lowtemp[0]*1000+lowtemp[1]*100+lowtemp[2]*10+lowtemp[4]; if(low_temp>high_temp) { lowtemp[0]=hightemp[0]; lowtemp[1]=hightemp[1]; lowtemp[2]=hightemp[2]; lowtemp[4]=hightemp[4]; } } else { lowtemp[0]=hightemp[0]; high_temp=hightemp[1]*100+hightemp[2]*10+hightemp[4]; low_temp=lowtemp[1]*100+lowtemp[2]*10+lowtemp[4]; if(high_temp>low_temp) { lowtemp[1]=hightemp[1]; lowtemp[2]=hightemp[2]; lowtemp[4]=hightemp[4]; } } Cls(); AT24C64_W(lowtemp,5); AT24C64_W(hightemp,5); if(warn_mark==1) { SBUF=0X41; while(!TI); TI=0; SBUF=0X4F; while(!TI); TI=0; } else { SBUF=0X41; while(!TI); TI=0; SBUF=0X4E; while(!TI); TI=0; } ii=0;a=0x87; Write_Instruction(0x0c); Write_String(0x80,zhifu); show_limits(); break; } }}void warn_start(){ Delay(200); while(!P1_1); warn_mark=1; SBUF=0X41; while(!TI); TI=0; SBUF=0X4f; while(!TI); TI=0;}void warm_stop(){ Delay(200); while(!P1_1); warn_mark=0; SBUF=0X41; while(!TI); TI=0; SBUF=0X4E; while(!TI); TI=0;}void data_handle_or_send(){ uchar receive; RI=0; Write_Instruction(0x8f); Write_Data(0x59); receive=SBUF; if(receive==65) { send_temp(); } else if(receive==79) { warn_mark=1; } else if(receive==78) { warn_mark=0; } else {Write_Instruction(0x8f);Write_Data(0x4e); }}void show_save_high_low(){ Write_String(0x80,"The Low :*"); work_temp(save_low); //处理温度数据 //Write_Instruction(0x80); Write_Data(display[3]); Write_Data(display[2]); Write_Data(display[1]); Write_Data(0X2E); Write_Data(display[0]); Write_Data(0xdf); Write_Data(0x43); Write_String(0xc0,"The High:*"); work_temp(save_high); //处理温度数据 Write_Data(display[3]); Write_Data(display[2]); Write_Data(display[1]); Write_Data(0X2E); Write_Data(display[0]); Write_Data(0xdf); Write_Data(0x43);}void re_save_high_low(){ save[0]=0xD0; save[1]=0x07; AT24C64_W(save,2); save_low=save[1]; save_low=save_low<<8; save_low=save_low|save[0]; save_h[0]=0x90; save_h[1]=0xfc; AT24C64_W(save_h,2); save_high=save_h[1]; save_high=save_high<<8; save_high=save_high|save_h[0];}/***********************主函数***********************/void main(void){ Init();//初始化 Write_String(0x80,"Please wait.....*"); ow_reset(); //开机先转换一次 write_byte(0xcc); //Skip ROM跳过读序列号 write_byte(0x44); //发转换命令 Delay(50000); Delay(50000); Write_String(0x80,zhifu); show_limits(); while(1) { showtemp(); show_warn_extent(); if(P1_0==0) change_warn_temp(); if(P1_1==0) { if(warn_mark==1) warm_stop(); else warn_start(); } if(RI) { data_handle_or_send(); } if(P1_2==0) { Delay(300);while(!P1_2); show_save_high_low(); while(P1_2); Delay(300);while(!P1_2); Cls(); Write_String(0x80,zhifu); show_limits(); SBUF=0X41; while(!TI); TI=0; SBUF=0X4F; while(!TI); TI=0; } if(P1_3==0) { Delay(300);while(!P1_3); re_save_high_low(); } }}//void int4()interrupt 4//{//data_handle_or_send();//}