简单温度控制完整程序

1、简单温度控制完整程序#include<reg52*h>#include<intrins.h>#defineucharunsignedchar#defineuintunsignedintsbitrs=P3A4;sbitrw=P3A5;sbitep=P3A7;unsignedintsetl=30?set2=10;unsignedcharflag=O;'sbitDQ=P1A7;定义通信端口sbitfengmingqi=P1A1;sbitjidianqi=PlA5;.codeiltiiarmayuan=,0,l,2,3,4y5,6r,r7,8r,r9,;codeucha

2、raa=nwenduis:1*）；codeucharbb=f1sheding:WpedefbitBOOL;unsignedchark,dat_wr8,dat_rd8;voidputchar(ucharweizhi,ucharda);3>voiddelay(uchar);voidlcd_wcmd(uchar);BOOLlcd_bz();voidlcd_pos(uchar);voidlcd_wdat(uchar);voiddisplay(uchar,uchar*);voidlcdinit();voidlongdelay(uchars);voidkeyscan(void);BOOLlcd_bz

3、()/测试LCD忙碌状态BOOLresult;rs=0;rw=1;result=(BOOL)(P2&0x80);:外孑：k.&Tep=0;returnresult;voidlcd_wcmd(ucharcmd)/写入指令数据到LCDwhile(lcdbz();rs=0;rw=0;ep=0;P2=cmd;ep=1；ep=0；voidlcd_pos(ucharpos)设定显示位置RC:4,Cg%'J：/Olcdwcmd(posI0x811);)voidlcdwdat(uchardat)写入字符显示数据到LCDwhile(lcd_bz();Oft、ep=1；ep=0;voidl

4、edJnit()/LCD初始化设定lcd_wcmd(0x38);/functionset'delay；lcd_wcmd(0x38);/functionsetdelay;Icd_wcmd(0x08);/displayon/offdelay;lcd_wcmd(0x01);清除LCD的显示内容delay(1);lcd_wcmd(0x06);/entrymodesetdelay(1);lcd_wcmd(0x0c);/entrymodesetdelay(l);/*函数名称：display()功能:在LCD上显示数组的数据说明：先写显示地址，后写显示数据调用：lcd_wcmd(),lcd_pos(

5、)入口参数：pos写入的位置，q指向要写入的数据所在的数组返回值:无*/voiddisplay(ucharpos,uchar*q)uchari;/lcd_wcmd(0x01);/clear/delay(lO);lcd_pos(pos);for(i=0;i<9;i+)kd_wdat(*q);q+;0Zflongdelay(2);voidputchar(ucharweizhi,ucharda)(delay(2);lcd_pos(weizhi);lcd_wdat(da);延时函数void delay(uchar ms)/延时子程序uchari;while(ms-)for(i=0;i<25

6、0;i+);voiddelayl(uchara)：w(while(a-);)voiddelay2(unsignedinti)延时函数(while(i-);)voidInit_DS18B20(void)(unsignedcharx=0;'DQ=1;/DQ复位delay2(8);稍做延时DQ=0;单片机将DQ拉低delay2(80);精确延时大于480us©DQ=1;拉高总线delay2(10);；x=DQ;稍做延时后如果x=0则初始化成功x=l则初始化失败V.8.sOif.delay2(5);DQ=1;/return(x);)4UiiUf8it|iwt>4&mU.

7、E*Jrj>>ggwrjw<Jw<J>rp><p>CMr|wrj*J>,<jwrjwr1*Jwrj*sIjp3%jJjp,必Tjr1#<T%1>，!>JrSjpy|<|<J*JW<1-<J<JJWFj<JiJW<J<1<JW<J<JW<|<J><Jli2mTi«ftfif*Jwrpirj*rjw<Jwrjwf读一个字节unsignedcharReadOneChar(void)unsignedchari=0;uns

8、ignedchardat=0;for(i=8;i>0;i-)DQ=1;delay2(5);DQ=0;/给脉冲信号dat»=l;*DQ=1;/给脉冲信号if(DQ)datl=0x80;delay2(5);DQ=1；return(dat);工1A：.>H：4工.°°A：-二>u：工.”：A：.,y<J#vf>31>%Lf%2/i7,kLf<1<2%1><&»%K>%2>7,2*<S2#J*J*rp-*J>rjv<prjvr1*J*<pq>*pr不rj

9、v<prf>rj>*jv<prjv<J%rj>q><p<prrjv*j%rjv<prjv<Jjjvrj><1«&2(<t>mbi<V>4bjut:M*"产«ki«f>a&ial>dUfrtA*“产6&i«£«*jwrjrjwwj*rjwrj*J*rjw*J*rjwfmivmjwrjJwrjrj*rjw*J*rjwfmivK*Jwrjwrjwwjwrj*rjw<pi./.A0,4.%T

10、jRkI7hT|jp%14lp.7/%f/i7/t<Ji#Jli、Jr写一个字节voidWriteOneChar(unsignedchardat)°°.,°°一，.，-3k,。、b°-；°八r'/unsignedchari=0;for(i=8;i>0;i«)p"au|DQ=1；delay2(5);DQ=0;DQ=dat&OxOl;delay2(5);DQ=1；dat»=l;,七)delay(5);)mfi，Jrpk<pivfwrj>«Mwrjwrjw<

11、;jjwf读取温度unsignedintReadTemperature(void)unsignedinta=0;unsignedintb=0;unsignedintt=0;Init_DS18B20();WriteOneChar(OxCC);/跳过读序号列号的操WriteOneChar(Ox44);/启动温度转换delay2(200);Init_DS18B20();WriteOneChar(OxCC);跳过读序号列号的操。V作WriteOneChar(OxBE);读取温度寄存器等(共可读9个寄存器)前两个就是温度a=ReadOneChar();读低八位数据b=ReadOneChar();位读最高四位，一共十二/b«=4;/b+=(a&0xf0)»4;/b与a组成最高的八位c,算时舍去了最低四位，只保留5到12位(c*2*2*2*2*0.0625=c*l=c),所以c的值就是实测温度t=b+a;return(t);)main()(uintbai9shi,ge;floatv;intj;unsignedinti;fengmingqi=l;jidianqi=l;delay(lO);lcd_init();/初始化LCD