106、基于51单片机时钟温度显示电路图及proteus仿真及程序

#include<reg52.h> #include "intrins.h" //包含 左移、右移及空指令 #define uchar unsigned char #define uint unsigned int sbit dsclk=P1^4; //1302时钟线 sbit dsio=P1^3; //1302数据线 sbit dsce=P1^2; //1302复位、片选线 //sbit gaobao=P1^0; //sbit xiaxian=P1^1; sbit led1=P1^0; sbit led2=P1^1; //sbit jdq=P1^0; sbit beep=P1^5; sbit s1=P3^0; //设置 sbit s2=P3^1; //向上 sbit s3=P3^2; //向下 sbit s4=P3^3; //确定 sbit s5=P1^6; //停止j2 sbit dq=P2^0; //18B20 sbit ACC0=ACC^0; sbit ACC7=ACC^7; sbit rs=P2^4; //1602寄存选择，1数据0指令 sbit rw=P2^5; //1602读写线，1读，0写 sbit en=P2^6; //1602使能端，下降沿使能 float tt; //温度带小数变量 bit zf=0; //温度正负标志 bit dw; //温控标志 bit flag5=0; uchar s1num,year,month,day,week;//s1按下次数，年月日天星期 uchar sec,min,hour; //秒分时 uchar t0num; //T0中断次数 uchar year1602,month1602,day1602,hour1602,min1602,sec1602; uchar yc,mc,dc,hc,fc,sc; //年月日时分秒定时参数 uchar who,wmo,wso,whc,wmc,wsc; //时分秒周循环定时参数 bit w1,w2,w3,w4,w5,w6,w7; //周循环定时参数 char ontemp,offtemp;//温度设定参数 void gbtz(uchar date); void stoptime(); void key1scan(); //选择模式 按键1 void timeset(); //关于1302 void twobcd(); //时间转换 void timemode(); //温度上下限设置 void tempmode(); //温度上下限控制 void addkey(uchar addnum); //加1 void deckey(uchar decnum); //减1 void initime(); //初始化时间为10-12-31 void read1302ram(); void temptest(); uchar weeknum(uchar y,uchar m,uchar d); void delay(uint z)//1ms { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void write_com(uchar com) //写1602指令 { rs=0; //选择指令寄存器 rw=0; //写 P0=com; //传指令到单片机P0口 delay(5); en=1; //使能端高脉冲 delay(5); en=0; //下降沿写指令到1602 } void write_date(uchar date)//写1602数据 { rs=1; //选择数据寄存器 rw=0; //写 P0=date; //传指令到P0口 delay(5); en=1; //使能端高脉冲 delay(5); en=0; //使能端下降沿写数据到时1602 } uchar read1602_date(uchar add) { uchar zhi; write_com(add); rs=1; rw=1; en=1; delay(5); zhi=P0; delay(5); en=0; return zhi; } void ini1602()//初始化1602 { write_com(0x38);//设置16*2显示，5*7点阵，8位数据口 write_com(0x0c);//开显示，不显示光标，光标不闪烁 write_com(0x06);//读写字符后地址指针加1，光标加1 write_com(0x01);//数据指针清0，显示清0 } void write1302_byte(uchar add,uchar date) { //1302指定地址写数据 uchar i; dsce=0; dsclk=0; dsce=1; ACC=add; for(i=8;i>0;i--) { dsio=ACC0; //sbit dsclk=1; dsclk=0; ACC=ACC>>1; } ACC=date; for(i=8;i>0;i--) { dsio=ACC0; //sbit dsclk=1; dsclk=0; ACC=ACC>>1; } dsclk=1; dsce=0; } uchar read1302_byte(uchar add) { //1302指定地址读数据 uchar i; dsce=0; dsclk=0; dsce=1; ACC=add; for(i=8;i>0;i--) { dsio=ACC0; //sbit dsclk=1; dsclk=0; ACC=ACC>>1; } for(i=8;i>0;i--) { ACC=ACC>>1; ACC7=dsio; dsclk=1; dsclk=0; } dsclk=1; dsce=0; return(ACC); } void lock_1302(uchar t)//1302写保护 { if(t==1) write1302_byte(0x8e,0x80);//开写保护 if(t==0) write1302_byte(0x8e,0x7f);//去写保护 } void initime() //初始化时间10-12-31 23：59 周5 { //长按s4才启动 lock_1302(0); //去写保护 write1302_byte(0x80,0x55); //sec write1302_byte(0x82,0x59); //min write1302_byte(0x84,0x23); //hour write1302_byte(0x86,0x31); //day write1302_byte(0x88,0x12); //month write1302_byte(0x8a,0x04); //week write1302_byte(0x8c,0x10); //year write1302_byte(0xc0,0); //ontemp write1302_byte(0xc2,0); //offtemp write1302_byte(0xc4,0); //yc write1302_byte(0xc6,0); //mc write1302_byte(0xc8,0); //dc write1302_byte(0xca,0); //hc write1302_byte(0xcc,0); //fc write1302_byte(0xce,0); //sc write1302_byte(0xd0,0); //w1 write1302_byte(0xd2,0); //w2 write1302_byte(0xd4,0); //w3 write1302_byte(0xd6,0); //w4 write1302_byte(0xd8,0); //w5 write1302_byte(0xda,0); //w6 write1302_byte(0xdc,0); //w7 write1302_byte(0xe0,0); //who write1302_byte(0xe2,0); //wmo write1302_byte(0xe4,0); //wso write1302_byte(0xe6,0); //whc write1302_byte(0xe8,0); //wmc write1302_byte(0xea,0); //wsc write1302_byte(0xec,0); //dw,温控标志 lock_1302(1); //开写保护 } void gettime() { year=read1302_byte(0x8d); //1302读时间 week=read1302_byte(0x8b); month=read1302_byte(0x89); day=read1302_byte(0x87); hour=read1302_byte(0x85); min=read1302_byte(0x83); sec=read1302_byte(0x81); } void disptime() { uchar shi,ge; //BCD 十位个位 gettime(); write_com(0x80+3); //1602首行 write_date('2'); //写一个字符 write_date('0'); shi=((year>>4)&0x0f); ge=(year&0x0f); write_date(0x30+shi); write_date(0x30+ge); write_date('-'); shi=((month>>4)&0x01); ge=(month&0x0f); write_date(0x30+shi); write_date(0x30+ge); write_date('-'); shi=((day>>4)&0x03); ge=(day&0x0f); write_date(0x30+shi); write_date(0x30+ge); write_com(0x80+0x40); //第二行 shi=((hour>>4)&0x03); ge=(hour&0x0f); write_date(0x30+shi); write_date(0x30+ge); write_date(':'); shi=((min>>4)&0x07); ge=(min&0x0f); write_date(0x30+shi); write_date(0x30+ge); write_date(':'); shi=((sec>>4)&0x07); ge=(sec&0x0f); write_date(0x30+shi); write_date(0x30+ge); } void t0() interrupt 1 //定时器0中断入口函数 { TH0=(65536-50000)/256;// T0定时器初值 TL0=(65536-50000)%256;// if(s4==0) { t0num++; if(t0num>100)//修改此参数更改长按s4初始化1302时间 { t0num=0; TR0=0; //T0停止 while(s4==0); initime(); //初始化1302 } } else TR0=0; //T0停止 } void init0() { TMOD=0X01; //T0，方式1 ，16位定时器 TH0=(65536-50000)/256;//50MS T0定时器初值 TL0=(65536-50000)%256; EA=1; //开总中断 ET0=1; //T0 暂停 } void delay1(uchar count) //微秒级及延时 { while(count>0) count--; } void reset(void) //初始化1820 { dq=0; delay1(100); dq=1; delay1(200); } bit read_bit(void) //1820读1位 { bit temp; dq=0; _nop_(); dq=1; _nop_(); temp=dq; delay1(200); return temp; } uchar read1820_byte(void) //1820读1字节 { uchar i,byte=0; bit j; for(i=0;i<8;i++) { byte=_cror_(byte ,1);//byte=byte>>1; j=read_bit(); //读1位 if(j==0) byte=byte|0x00; else byte=byte|0x80;//从高位开始写入byte } return byte; } void write1820_byte(uchar command) //1820写1字节 { uchar i; for(i=0;i<8;i++) { if((command & 0x01)==0) //command最低位为0 { dq=0; delay1(8); //写0 dq=1; _nop_(); } else { dq=0; _nop_(); dq=1; delay1(8);//写1 } command=_cror_(command,1); //command=command>>1 移除最低1位 } } void tmpchange(void) // begin change { reset(); //1820初始化 write1820_byte(0xcc); //跳过检测1820 ROM 直接操作1820 RAM write1820_byte(0x44); //启动1820进行温度转换 } uint tmp() //读取温度 { uint temp; //温度整数变量，16位 float tt;//带小数温度 uchar a,b;//温度低位、高位 reset(); write1820_byte(0xcc); //跳过检测1820 ROM 直接操作1820 RAM write1820_byte(0xbe); //读取温度寄存器的温度值 a=read1820_byte();//读低八位 b=read1820_byte();//读高八位 temp=b; temp<<=8; //注意temp为16位整形 temp=temp|a; //合并高低位 if(temp>>11!=0) //判断是否是负数 if(b>(b&0x7f)) { zf=1; temp=~temp;//补码取反加1 转换为原码 temp=temp+1; } else zf=0; tt=temp*0.0625;//tt最小单位0.0625度 temp=tt*10+0.5;//十分位变个位，舍掉百分位，转为整型 return temp; } void display_temp() {