单片机的温度测量和显示【仿真】"/>
51单片机的温度测量和显示【仿真】
#include <REG52.H>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit DS1302_CLK = P1^7; //实时时钟时钟线引脚
sbit DS1302_IO = P1^6; //实时时钟数据线引脚
sbit DS1302_RST = P1^5; //实时时钟复位线引脚sbit wireless_1 = P3^0;
sbit wireless_2 = P3^1;
sbit wireless_3 = P3^2;
sbit wireless_4 = P3^3;sbit ACC0 = ACC^0 //累加器定义
sbit ACC7 = ACC^7;char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; //秒,分,时到日,月,年位闪的计数sbit Set = P2^0; //模式切换键
sbit Up = P2^1; //加法按钮
sbit Down = P2^2; //减法按钮
sbit out = P2^3; //立刻跳出调整模式按钮sbit DQ = P1^0; //温度传送数据IO口
char done,count,temp,flag,up_flag,down_flag;
uchar temp_value; //温度值
uchar TempBuffer[5],week_value[2];void show_time(); //液晶显示程序
/***********1602液晶显示部分子程序****************///Port Definitions**********************************************************
sbit LcdRs = P2^5;
sbit LcdRw = P2^6;
sbit LcdEn = P2^7;
sfr DBPort = 0x80; //P0=0x80,P1=0x90,P2=0xA0,P3=0xB0.数据端口//内部等待函数**************************************************************************
unsigned char LCD_Wait(void)
{LcdRs=0;LcdRw=1; _nop_();LcdEn=1; _nop_();LcdEn=0;return DBPort;
}
//向LCD写入命令或数据************************************************************
#define LCD_COMMAND 0 // Command
#define LCD_DATA 1 // Data
#define LCD_CLEAR_SCREEN 0x01 // 清屏0000 0001
#define LCD_HOMING 0x02 // 光标返回原点0000 0010
void LCD_Write(bit style, unsigned char input)
{LcdEn=0;LcdRs=style;LcdRw=0; _nop_();DBPort=input; _nop_();//注意顺序LcdEn=1; _nop_();//注意顺序LcdEn=0; _nop_();LCD_Wait();
}//设置显示模式************************************************************
#define LCD_SHOW 0x04 //显示开0000 0100
#define LCD_HIDE 0x00 //显示关 0000 0000 #define LCD_CURSOR 0x02 //显示光标0000 0010
#define LCD_NO_CURSOR 0x00 //无光标 0000 0000 #define LCD_FLASH 0x01 //光标闪动 0000 0001
#define LCD_NO_FLASH 0x00 //光标不闪动void LCD_SetDisplay(unsigned char DisplayMode)
{LCD_Write(LCD_COMMAND, 0x08|DisplayMode);
}//设置输入模式************************************************************
#define LCD_AC_UP 0x02
#define LCD_AC_DOWN 0x00 // default#define LCD_MOVE 0x01 // 画面可平移
#define LCD_NO_MOVE 0x00 //defaultvoid LCD_SetInput(unsigned char InputMode)
{LCD_Write(LCD_COMMAND, 0x04|InputMode);//00000100与inputMode进行按位与运算
}//初始化LCD************************************************************
void LCD_Initial()
{LcdEn=0;LCD_Write(LCD_COMMAND,0x38); //8位数据端口,2行显示,5*7点阵LCD_Write(LCD_COMMAND,0x38);LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); //开启显示, 无光标LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); //清屏LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); //AC递增, 画面不动
}//液晶字符输入的位置************************
void GotoXY(unsigned char x, unsigned char y)
{if(y==0)LCD_Write(LCD_COMMAND,0x80|x);if(y==1)LCD_Write(LCD_COMMAND,0x80|(x-0x40));
}//将字符输出到液晶显示
void Print(unsigned char *str)
{while(*str!='\0'){LCD_Write(LCD_DATA,*str);str++;}
}/***********DS1302时钟部分子程序******************/
typedef struct __SYSTEMTIME__
{unsigned char Second;unsigned char Minute;unsigned char Hour;unsigned char Week;unsigned char Day;unsigned char Month;unsigned char Year;unsigned char DateString[11];unsigned char TimeString[9];
}SYSTEMTIME; //定义的时间类型
SYSTEMTIME CurrentTime;#define AM(X) X
#define PM(X) (X+12) // 转成24小时制
#define DS1302_SECOND 0x80 //时钟芯片的寄存器位置,存放时间
#define DS1302_MINUTE 0x82
#define DS1302_HOUR 0x84
#define DS1302_WEEK 0x8A
#define DS1302_DAY 0x86
#define DS1302_MONTH 0x88
#define DS1302_YEAR 0x8Cvoid DS1302InputByte(unsigned char d) //实时时钟写入一字节(内部函数)
{ unsigned char i;ACC = d;for(i=8; i>0; i--){DS1302_IO = ACC0; //相当于汇编中的 RRCDS1302_CLK = 1;DS1302_CLK = 0;ACC = ACC >> 1; }
}unsigned char DS1302OutputByte(void) //实时时钟读取一字节(内部函数)
{ unsigned char i;for(i=8; i>0; i--){ACC = ACC >>1; //相当于汇编中的 RRC ACC7 = DS1302_IO;DS1302_CLK = 1;DS1302_CLK = 0;} return(ACC);
}void Write1302(unsigned char ucAddr, unsigned char ucDa) //ucAddr: DS1302地址, ucData: 要写的数据
{DS1302_RST = 0;DS1302_CLK = 0;DS1302_RST = 1;DS1302InputByte(ucAddr); // 地址，命令 DS1302InputByte(ucDa); // 写1Byte数据DS1302_CLK = 1;DS1302_RST = 0;
}unsigned char Read1302(unsigned char ucAddr) //读取DS1302某地址的数据
{unsigned char ucData;DS1302_RST = 0;DS1302_CLK = 0;DS1302_RST = 1;DS1302InputByte(ucAddr|0x01); // 地址，命令 ucData = DS1302OutputByte(); // 读1Byte数据DS1302_CLK = 1;DS1302_RST = 0;return(ucData);
}void DS1302_GetTime(SYSTEMTIME *Time) //获取时钟芯片的时钟数据到自定义的结构型数组
{unsigned char ReadValue;ReadValue = Read1302(DS1302_SECOND);Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MINUTE);Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_HOUR);Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_DAY);Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_WEEK);Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MONTH);Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_YEAR);Time->Year = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
}void DateToStr(SYSTEMTIME *Time) //将时间年,月,日,星期数据转换成液晶显示字符串,放到数组里DateString[]
{ if(hide_year<2) //这里的if,else语句都是判断位闪烁,<2显示数据,>2就不显示,输出字符串为 2007/07/22{ Time->DateString[0] = '2';Time->DateString[1] = '0'; Time->DateString[2] = Time->Year/10 + '0';Time->DateString[3] = Time->Year%10 + '0';}else{ Time->DateString[0] = ' ';Time->DateString[1] = ' '; Time->DateString[2] = ' ';Time->DateString[3] = ' ';}Time->DateString[4] = '/';if(hide_month<2){Time->DateString[5] = Time->Month/10 + '0';Time->DateString[6] = Time->Month%10 + '0';}else{Time->DateString[5] = ' ';Time->DateString[6] = ' ';}Time->DateString[7] = '/';if(hide_day<2){Time->DateString[8] = Time->Day/10 + '0';Time->DateString[9] = Time->Day%10 + '0';}else{Time->DateString[8] = ' ';Time->DateString[9] = ' '; }if(hide_week<2){week_value[0] = Time->Week%10 + '0'; //星期的数据另外放到 week_value[]数组里,跟年,月,日的分开存放,因为等一下要在最后显示}else{week_value[0] = ' ';}week_value[1] = '\0';Time->DateString[10] = '\0'; //字符串末尾加 '\0' ,判断结束字符
}void TimeToStr(SYSTEMTIME *Time) //将时,分,秒数据转换成液晶显示字符放到数组 TimeString[];
{ if(hide_hour<2){Time->TimeString[0] = Time->Hour/10 + '0';Time->TimeString[1] = Time->Hour%10 + '0';}else{Time->TimeString[0] = ' ';Time->TimeString[1] = ' ';}Time->TimeString[2] = ':';if(hide_min<2){Time->TimeString[3] = Time->Minute/10 + '0';Time->TimeString[4] = Time->Minute%10 + '0';}else{Time->TimeString[3] = ' ';Time->TimeString[4] = ' ';}Time->TimeString[5] = ':';if(hide_sec<2){Time->TimeString[6] = Time->Second/10 + '0';Time->TimeString[7] = Time->Second%10 + '0';}else{Time->TimeString[6] = ' ';Time->TimeString[7] = ' ';}Time->DateString[8] = '\0';
}void Initial_DS1302(void) //时钟芯片初始化
{ unsigned char Second=Read1302(DS1302_SECOND);if(Second&0x80) //判断时钟芯片是否关闭 {Write1302(0x8e,0x00); //写入允许Write1302(0x8c,0x12); //以下写入初始化时间 日期:12/05/14.星期: 1. 时间: 23:59:55Write1302(0x88,0x05);Write1302(0x86,0x14);Write1302(0x8a,0x01);Write1302(0x84,0x23);Write1302(0x82,0x59);Write1302(0x80,0x55);Write1302(0x8e,0x80); //禁止写入} }/***********ds18b20子程序*************************//***********ds18b20延迟子函数（晶振12MHz ）*******/void delay_18B20(unsigned int i)
{while(i--);
}/**********ds18b20初始化函数**********************/void Init_DS18B20(void)
{unsigned char x=0;DQ = 1; //DQ复位delay_18B20(8); //稍做延时DQ = 0; //单片机将DQ拉低delay_18B20(80); //精确延时 大于 480usDQ = 1; //拉高总线delay_18B20(14);x=DQ; //稍做延时后 如果x=0则初始化成功 x=1则初始化失败delay_18B20(20);
}/***********ds18b20读一个字节**************/ unsigned char ReadOneChar(void)
{uchar i=0;uchar dat = 0;for (i=8;i>0;i--){DQ = 0; // 给脉冲信号dat>>=1;DQ = 1; // 给脉冲信号if(DQ)dat|=0x80;delay_18B20(4);}return(dat);
}/*************ds18b20写一个字节****************/ void WriteOneChar(uchar dat)
{unsigned char i=0;for (i=8; i>0; i--){DQ = 0;DQ = dat&0x01;delay_18B20(5);DQ = 1;dat>>=1;}
}/**************读取ds18b20当前温度************/void ReadTemp(void)
{unsigned char a=0;unsigned char b=0;unsigned char t=0;Init_DS18B20();WriteOneChar(0xCC); // 跳过读序号列号的操作WriteOneChar(0x44); // 启动温度转换delay_18B20(100); // this message is wery importantInit_DS18B20();WriteOneChar(0xCC); //跳过读序号列号的操作WriteOneChar(0xBE); //读取温度寄存器等（共可读9个寄存器） 前两个就是温度delay_18B20(100);a=ReadOneChar(); //读取温度值低位b=ReadOneChar(); //读取温度值高位temp_value=b<<4;temp_value+=(a&0xf0)>>4;
}
void temp_to_str() //温度数据转换成液晶字符显示
{TempBuffer[0]=temp_value/10+'0'; //十位TempBuffer[1]=temp_value%10+'0'; //个位TempBuffer[2]=0xdf; //温度符号TempBuffer[3]='C';TempBuffer[4]='\0';
}
void Delay1ms(unsigned int count)
{unsigned int i,j;for(i=0;i<count;i++)for(j=0;j<120;j++);
}/*延时子程序*/
void mdelay(uint delay)
{ uint i;for(;delay>0;delay--){for(i=0;i<62;i++) //1ms延时.{;}}
}void outkey() //跳出调整模式,返回默认显示
{ uchar Second;if(out==0||wireless_1==1) { mdelay(8); count=0;hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;Second=Read1302(DS1302_SECOND);Write1302(0x8e,0x00); //写入允许Write1302(0x80,Second&0x7f);Write1302(0x8E,0x80); //禁止写入done=0; while(out==0);while(wireless_1==1);}
}
void Upkey()//升序按键
{ Up=1;if(Up==0||wireless_2==1){mdelay(8);switch(count){case 1:temp=Read1302(DS1302_SECOND); //读取秒数temp=temp+1; //秒数加1up_flag=1; //数据调整后更新标志if((temp&0x7f)>0x59) //超过59秒,清零temp=0; break;case 2:temp=Read1302(DS1302_MINUTE); //读取分数temp=temp+1; //分数加1up_flag=1;if(temp>0x59) //超过59分,清零temp=0;break;case 3:temp=Read1302(DS1302_HOUR); //读取小时数temp=temp+1; //小时数加1up_flag=1;if(temp>0x23) //超过23小时,清零temp=0;break;case 4:temp=Read1302(DS1302_WEEK); //读取星期数temp=temp+1; //星期数加1up_flag=1;if(temp>0x7) temp=1;break;case 5:temp=Read1302(DS1302_DAY); //读取日数temp=temp+1; //日数加1up_flag=1;if(temp>0x31)temp=1;break;case 6:temp=Read1302(DS1302_MONTH); //读取月数temp=temp+1; //月数加1up_flag=1;if(temp>0x12)temp=1;break;case 7:temp=Read1302(DS1302_YEAR); //读取年数temp=temp+1; //年数加1up_flag=1;if(temp>0x85)temp=0;break;default:break;}while(Up==0);while(wireless_2==1);}
}void Downkey()//降序按键
{ Down=1;if(Down==0||wireless_3==1){mdelay(8);switch(count){case 1:temp=Read1302(DS1302_SECOND); //读取秒数temp=temp-1; //秒数减1down_flag=1; //数据调整后更新标志if(temp==0x7f) //小于0秒,返回59秒temp=0x59;break;case 2:temp=Read1302(DS1302_MINUTE); //读取分数temp=temp-1; //分数减1down_flag=1;if(temp==-1)temp=0x59; //小于0秒,返回59秒break;case 3:temp=Read1302(DS1302_HOUR); //读取小时数temp=temp-1; //小时数减1down_flag=1;if(temp==-1)temp=0x23;break;case 4:temp=Read1302(DS1302_WEEK); //读取星期数temp=temp-1; //星期数减1down_flag=1;if(temp==0)temp=0x7;;break;case 5:temp=Read1302(DS1302_DAY); //读取日数temp=temp-1; //日数减1down_flag=1;if(temp==0)temp=31;break;case 6:temp=Read1302(DS1302_MONTH); //读取月数temp=temp-1; //月数减1down_flag=1;if(temp==0)temp=12;break;case 7:temp=Read1302(DS1302_YEAR); //读取年数temp=temp-1; //年数减1down_flag=1;if(temp==-1)temp=0x85;break;default:break;}while(Down==0);while(wireless_3==1);}
}void Setkey()//模式选择按键
{Set=1;if(Set==0||wireless_4==1){mdelay(8);count=count+1; //Setkey按一次,count就加1done=1; //进入调整模式while(Set==0);while(wireless_4==1);}}void keydone()//按键功能执行
{ uchar Second;if(flag==0) //关闭时钟,停止计时{ Write1302(0x8e,0x00); //写入允许temp=Read1302(0x80);Write1302(0x80,temp|0x80);Write1302(0x8e,0x80); //禁止写入flag=1;}Setkey(); //扫描模式切换按键switch(count){case 1:do //count=1,调整秒{outkey(); //扫描跳出按钮Upkey(); //扫描加按钮Downkey(); //扫描减按钮if(up_flag==1||down_flag==1) //数据更新，重新写入新的数据{Write1302(0x8e,0x00); //写入允许Write1302(0x80,temp|0x80); //写入新的秒数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}
hide_sec++; //位闪计数if(hide_sec>3)hide_sec=0;show_time(); //液晶显示数据}while(count==2);break; case 2:do //count=2,调整分{hide_sec=0;outkey();Upkey();Downkey();if(temp>0x60)temp=0;if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x82,temp); //写入新的分数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}hide_min++;if(hide_min>3)hide_min=0;show_time();}while(count==3);break;case 3:do //count=3,调整小时{hide_min=0; outkey();Upkey();Downkey();if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x84,temp); //写入新的小时数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}hide_hour++;if(hide_hour>3)hide_hour=0;show_time();}while(count==4);break;case 4:do //count=4,调整星期{hide_hour=0; outkey();Upkey();Downkey();if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x8a,temp); //写入新的星期数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}hide_week++;if(hide_week>3)hide_week=0;show_time();}while(count==5);break;case 5:do //count=5,调整日{hide_week=0; outkey();Upkey();Downkey();if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x86,temp); //写入新的日数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}hide_day++;if(hide_day>3)hide_day=0;show_time();}while(count==6);break;case 6:do //count=6,调整月{hide_day=0; outkey();Upkey();Downkey();if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x88,temp); //写入新的月数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}
hide_month++;if(hide_month>3)hide_month=0;show_time();}while(count==7);break;case 7:do //count=7,调整年{hide_month=0; outkey();Upkey();Downkey();if(up_flag==1||down_flag==1){Write1302(0x8e,0x00); //写入允许Write1302(0x8c,temp); //写入新的年数Write1302(0x8e,0x80); //禁止写入up_flag=0;down_flag=0;}hide_year++;if(hide_year>3)hide_year=0;show_time();}while(count==8);break;case 8: count=0;hide_year=0; //count8, 跳出调整模式,返回默认显示状态Second=Read1302(DS1302_SECOND);Write1302(0x8e,0x00); //写入允许Write1302(0x80,Second&0x7f);Write1302(0x8E,0x80); //禁止写入done=0;break; //count=7,开启中断,标志位置0并退出default:break;}}void show_time() //液晶显示程序
{DS1302_GetTime(&CurrentTime); //获取时钟芯片的时间数据TimeToStr(&CurrentTime); //时间数据转换液晶字符DateToStr(&CurrentTime); //日期数据转换液晶字符ReadTemp(); //开启温度采集程序temp_to_str(); //温度数据转换成液晶字符GotoXY(12,1); //液晶字符显示位置Print(TempBuffer); //显示温度GotoXY(0,1);Print(CurrentTime.TimeString); //显示时间GotoXY(0,0);Print(CurrentTime.DateString); //显示日期GotoXY(15,0);Print(week_value); //显示星期GotoXY(11,0);Print("Week"); //在液晶上显示 字母 weekDelay1ms(400); //扫描延时
}main()
{flag=1; //时钟停止标志LCD_Initial(); //液晶初始化Init_DS18B20( ) ; //DS18B20初始化Initial_DS1302(); //时钟芯片初始化up_flag=0;down_flag=0;done=0; //进入默认液晶显示wireless_1=0;wireless_2=0;wireless_3=0;wireless_4=0;while(1){ while(done==1)keydone(); //进入调整模式while(done==0){ show_time(); //液晶显示数据flag=0; Setkey(); //扫描各功能键} }
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51单片机的温度测量和显示【仿真】
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