单片机课程设计-温度控制器.doc

单片机系统设计作品名称温度控制器姓名刘欢材料清单温度传感器，缓冲器，12864液晶屏，时钟芯片DS1302，模数转换器ADC0808,单片机AT89C52作品简介1.说明：社会在不断进步，人们对电子产品的设计要求越来越高。温度在工业控制中起着很重要的作用，如何用单片机设计这一系统并使它发挥出应有的功能显得尤为关键。2.介绍：DS1302具有掉电记忆功能，可以准确的记录时间，保证时间的准确性。用ADC0808模数转换器进行模拟量到数字量之间的转换，并在12864液晶屏上显示出来。利用74LS244三态输出，作为地址驱动器、时钟驱动器、总线驱动器和定向发送器等3.功能：此系统具有体积小，功耗低，抗干扰性强，工作温度范围宽等优点。能够准确测定当前温度，根据不同的场所可以设定温度不同的上限和下限值，以便达到控制的要求。设计说明开机启动界面可以看到当前的测量值，设置值以及时间和日期。所用器件较少，电路连接清晰明了，便于观察。时钟芯片DS1302及数模转换器ADC0808，其中数模转换器是一个比较重要的部分要 设 计 说 明部分。现在看到的这个窗口是温度控制器的显示窗口，用户可以根据地点要求很方便的观测到当前的温度变化。通过此系统的按键可以进入温度和时间日期的设置界面，按键有确定，退出，上下，左右几个键，操作方便，可以根据相应的要求此系统进行调整来达到用户要求值。进行设置的按键以及74LS244缓冲器，如对12864屏中所显示的数据及工业控制所要求的参数进行相应的设置，来完成工业控制的要求。这是温度控制器在工作时的指示灯，可以看到它是亮的，说明此系统工作正常。温度控制器整体布局连接，经过连接调试之后成功运行。下面是实现此系统功能的程序：/设计程序/#include /宏定义/#define uchar unsigned char/定义uchar为无符号字符#define uint unsigned int/定义uint为无符号整形#define ENT 0 /定义确定键为0#define ESC 1 /定义退出键为1#define L 2 /定义左移键为2#define R 3 /定义右移键为3#define UP 4 /定义上移键为4#define DOWN 5 /定义下移键为5#define ADD 6 /定义加移键为6#define SUB 7 /定义减移键为7/位定义/sbit wr=P20;sbit rd=P21;sbit ce=P22;sbit cd=P23;sbit rst=P24;sbit tsclk=P26;sbit tdio=P27;sbit tce=P25;sbit ad_st=P34;sbit ad_oe=P33;sbit ad_eoc=P32;sbit LED=P35;sbit KEY_OE=P36;sbit ad_c=P37;/包含函数声明/void delay(uint t); /延时函数void init_12864(); /初始化函数void write_data(uchar dat); /写数据函数void write_cmd1(uchar cmd); /写命令函数void write_cmd2(uchar dat,uchar cmd); void write_cmd3(uchar data1,uchar data2,uchar cmd);uchar read_status(); /读状态函数void check_status(); /检查状态函数void clear_screen(); /清屏函数void display_char(uchar x,uchar y,uchar ch); /显示字符函数void display_dat(uchar x,uchar y,uchar ch); /显示数据函数void display_uint(uchar x,uchar y,uint dat);void display_uint3(uchar x,uchar y,uint dat);void display_int(uchar x,uchar y,int dat);void display_float(uchar x,uchar y,float dat,uchar dp);void setfs(void);/设置方式函数void setsj(void);/设置时间函数uchar fs,set,key;float cl;uchar year,mon,day,hour,min,sec; /定义年月日时分秒uchar gbn,setbuf3,sbuf8; /定义光标及光标位置void dispiay_time(void); void display_mainbt(void);void display_setbt(void);void display_maindat(void);void display_setdat(void);void display_setbt1(void);void display_setdat1(void);void write_t(uchar add,uchar date);uchar read_t(uchar add);uchar adzh(uchar add);uchar read_key(void);/汉字代码/ uchar code HZ02032=0x40,0x00,0x27,0xF0,0x24,0x10,0x07,0xF0,0x94,0x10,0x54,0x10,0x17,0xF0,0x20,0x00, /温0x2F,0xFC,0xC9,0x24,0x49,0x24,0x49,0x24,0x49,0x24,0x49,0x24,0x5F,0xFE,0x40,0x00, 0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x2F,0xFC,0x22,0x20,0x23,0xE0, /度0x20,0x00,0x27,0xF8,0x22,0x10,0x21,0x20,0x20,0xC0,0x41,0x30,0x46,0x0E,0x98,0x04,0x10,0x00,0x10,0x20,0x10,0x10,0xFD,0xFE,0x11,0x04,0x10,0x50,0x14,0x8C,0x19,0x04,/控0x30,0x00,0xD1,0xFC,0x10,0x20,0x10,0x20,0x10,0x20,0x10,0x20,0x53,0xFE,0x20,0x00,0x24,0x04,0x34,0x04,0x24,0x24,0x3F,0xA4,0x44,0x24,0x04,0x24,0x7F,0xA4,0x04,0x24,/制0x3F,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x24,0x84,0x27,0x84,0x05,0x14,0x04,0x08,0x3E,0x7C,0x22,0x44,0x22,0x44,0x3E,0x7C,0x01,0x10,0x01,0x08,0xFF,0xFC,0x06,0xC0,/器0x18,0x30,0xE0,0x0E,0x3E,0xFC,0x22,0x88,0x22,0x88,0x22,0x88,0x3E,0xF8,0x00,0x00,0x40,0x02,0x27,0xC2,0x24,0x42,0x84,0x52,0x45,0x52,0x55,0x52,0x15,0x52,0x25,0x52,/测0x25,0x52,0x25,0x52,0xC5,0x52,0x41,0x02,0x42,0x82,0x42,0x42,0x44,0x4A,0x48,0x04,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x00,0x00,0xFF,0xFE,0x11,0x10,/量0x1F,0xF0,0x11,0x10,0x1F,0xF0,0x01,0x00,0x1F,0xF8,0x01,0x00,0xFF,0xFE,0x00,0x00,0x40,0x00,0x21,0xF0,0x31,0x10,0x21,0x10,0x01,0x10,0x01,0x10,0xE2,0x0E,0x25,0xF8, /设0x21,0x08,0x21,0x08,0x20,0x90,0x20,0x90,0x28,0x60,0x30,0x90,0x23,0x0E,0x0C,0x04,0x3F,0xF8,0x24,0x48,0x24,0x48,0x3F,0xF8,0x01,0x00,0x7F,0xFC,0x02,0x00,0x1F,0xF0, /置0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /:0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0x40,0x97,0xF8,0x94,0x08,0xA0,0x00,0xA3,0xF0,0x90,0x00,0x90,0x00,0x97,0xF8,0x91,0x20,0xE1,0x20,0x82,0x20,0x84,0x28,0x88,0x18;/显示汉字函数/void display_HZ(uchar x,uchar y,uchar *hz)/x 0-3 y 0-7uchar i,j=0;for(i=0;i16;i+) write_cmd3(j/2)4)|(y*2),x,0x24);/地址指针设置.低地址，高地址，命令 write_cmd2(hzj+,0xc0); write_cmd2(hzj+,0xc0);void display_HZchar(uchar x,uchar y,uchar *hz)/x 0-3 y 0-7uchar i,j=0;for(i=0;i8;i+) write_cmd3(j)|(y),x,0x24);/地址指针设置.低地址，高地址，命令 write_cmd2(hzj+,0xc0);void main()uchar i,j,t=0;uchar ad_dat;uint dat;float v;/定时器设置/SCON=0X50; /串行口控制寄存器，工作方式2TMOD=0X20; /工作方式寄存器，工作方式2PCON=0X00; /电源控制寄存器，波特率不加倍TH1=253; /装初值，高八位TL1=253;/装初值，低八位TR1=1;/启动定时器1ad_oe=0;KEY_OE=1;fs=0;set=25;init_12864();/初始化函数display_mainbt(); display_maindat(); while(1) for(i=0;i100;i+) key=read_key(); /读键if(key8) break; if(key=0) fs=1;clear_screen();/清屏display_setbt();/设置gbn=0; if(key=1) fs=2;clear_screen();display_setbt1();gbn=0; switch(fs) case 0:display_maindat();break;case 1:setfs();break;case 2:setsj();break;default:break; /显示字符函数，处在x y处显示chvoid display_char(uchar x,uchar y,uchar ch)/x 0-7 y 0-15write_cmd3(x*2)4)+y),0x00,0x24);/地址指针位置write_cmd2(ch-32,0xc0);/t6963c字符表与ASCII差32void display_dat(uchar x,uchar y,uchar ch)/x 0-7 y 0-15write_cmd3(x*2)4)+y),0x00,0x24);/地址指针位置write_cmd2(ch+16,0xc0);/t6963c字符表与ASCII差32void display_uint(uchar x,uchar y,uint dat) /x，y在屏中位置及显示的数据 display_dat(x,y,dat/10000); display_dat(x,y+1,(dat%10000)/1000); display_dat(x,y+2,(dat%1000)/100); display_dat(x,y+3,(dat%100)/10); display_dat(x,y+4,dat%10);void display_uint3(uchar x,uchar y,uint dat) display_dat(x,y,(dat%1000)/100); display_dat(x,y+1,(dat%100)/10); display_dat(x,y+2,dat%10);void display_int(uchar x,uchar y,int dat) if(dat0) dat=-dat;display_char(x,y,-); display_dat(x,y+1,dat/10000); display_dat(x,y+2,(dat%10000)/1000); display_dat(x,y+3,(dat%1000)/100); display_dat(x,y+4,(dat%100)/10); display_dat(x,y+5,dat%10);void display_float(uchar x,uchar y,float dat,uchar dp) /测量值显示的数据 uint n; switch(dp) case 0: n=dat; display_dat(x,y+1,n/1000); display_dat(x,y+2,(n%1000)/100); display_dat(x,y+3,(n%100)/10); display_dat(x,y+4,n%10); break; case 1: n=dat*10; display_dat(x,y+1,n/1000); display_dat(x,y+2,(n%1000)/100); display_dat(x,y+3,(n%100)/10); display_char(x,y+4,.); display_dat(x,y+5,n%10); break; case 2: n=dat*100; display_dat(x,y+1,n/1000); display_dat(x,y+2,(n%1000)/100); display_char(x,y+3,.); display_dat(x,y+4,(n%100)/10); display_dat(x,y+5,n%10); break; case 3: n=dat*1000; display_dat(x,y+1,n/1000); display_char(x,y+2,.); display_dat(x,y+3,(n%1000)/100); display_dat(x,y+4,(n%100)/10); display_dat(x,y+5,n%10); break; void delay(uint t)uint i,j;for(i=0;it;i+) for(j=0;j5;j+);void init_12864()rst=0;delay(10);rst=1;wr=1;rd=1;ce=1;cd=1;rst=1;check_status();write_cmd3(0x00,0x00,0x21);/光标指针设置check_status();write_cmd3(0x00,0x00,0x42);/图形区首地址check_status();write_cmd3(16,0x00,0x43);/图形区宽度check_status();write_cmd1(0x80);/显示方式设置，正常显示check_status();/write_cmd1(0x94);/文本显示状态设置 1 0 1 0 N3 N2 N1 N0 文本显示，光标不显示，不闪烁/write_cmd1(0x98);/图形方式显示，不显示字母，只打点write_cmd1(0x9c); /文本图形check_status();write_cmd1(0xa1);/光标形状设置1 0 1 0 0 N2 N1 N0check_status(); void clear_screen()uint i;write_cmd3(0x00,0x00,0x24);/地址指针设置check_status();write_cmd1(0xb0);/数据自动写，每写一次，地址指针自动加一check_status();for(i=0;i8192;i+) / check_status(); write_data(0X00);check_status();write_cmd1(0xb2);/数据自动写结束void write_data(uchar dat)rd=1; /读数据置高电平cd=0; /P23为低电平ce=0; / P22为低电平wr=0; /写命令为低电平 P0=dat;/把读到的数据送到P0口delay(10); /延时10mswr=1; /写命令为高电平，开始工作ce=1; /接收数据cd=1; /接收数据void write_cmd1(uchar cmd)rd=1;cd=1;ce=0;wr=0;P0=cmd;delay(10);wr=1;ce=1;cd=0;/先送参数，再送指令void write_cmd2(uchar dat,uchar cmd)check_status();write_data(dat);check_status();write_cmd1(cmd);void write_cmd3(uchar data1,uchar data2,uchar cmd)check_status();write_data(data1);check_status();write_data(data2);check_status();write_cmd1(cmd);uchar read_status()uchar status;rd=0;wr=1;ce=0;cd=1;status=P1;return status;void check_status()uchar s;while(s&0x80)!=0x80) s=read_status();/等待位1，2置为。命令读写准备好。数据读写准备好void write_t(uchar add,uchar date)uchar temp,t;tce=0;tsclk=0;tce=1;temp=add;for(t=0;t1;temp=date; /把数据送给tempfor(t=8;t0;t-)if(temp&0x01)=1)tdio=1;elsetdio=0;tsclk=1;delay(1);tsclk=0;temp=temp1;tce=0;uchar read_t(uchar add)uchar temp,t;tce=0;tsclk=0;tce=1;temp=add;/把地址送给tempfor(t=0;t1;temp=0;for(t=0;t1;tce=0;return(temp);uchar adzh(uchar add) /检测温度传感器接收到的数据函数 uchar ad_dat; ad_st=1; delay(1); ad_st=0; while(!ad_eoc); ad_oe=1; delay(1); P1=0xff; ad_dat=P1; ad_oe=0; return(ad_dat);uchar read_key(void)/读键 uchar i,n,key1; ad_oe=0; key1=P1; n=0; for(i=0;i1;/键号右移一位n+;/每次循环n自动加1 ad_oe=1; return(n); void display_time(void)sec=read_t(0x81); /读秒命令min=read_t(0x83); /读分命令hour=read_t(0x85); /读小时命令day=read_t(0x87); /读天命令mon=read_t(0x89); /读月命令year=read_t(0x8d); /读年命令/显示年月日时分秒/display_dat(6,6,2);display_dat(6,7,0);display_dat(6,8,year/16);display_dat(6,9,year%16);display_char(6,10,-);display_dat(6,11,mon/16);display_dat(6,12,mon%16);display_char(6,13,-);display_dat(6,14,day/16);display_dat(6,15,day%16);display_dat(7,8,hour/16);display_dat(7,9,hour%16);display_char(7,10,:);display_dat(7,11,min/16);display_dat(7,12,min%16);display_char(7,13,:);display_dat(7,14,sec/16);display_dat(7,15,sec%16);/void display_mainbt(void) uchar ad_dat; float v; write_cmd1(0x9C); display_HZ(1,0,HZ05); display_HZ(1,1,HZ06); display_HZ(2,0,HZ07); display_HZ(2,1,HZ08); display_char(3,4,:); display_char(5,4,:);void display_maindat(void) /显示主函数数据 uchar ad_dat; uchar buf6; uchar i; float v; ad_dat=adzh(0); v=ad_dat; cl=(v/255)*5; display_float(3,5,cl,1); display_char(3,11,c); display_uint3(5,6,set); display_char(5,9,c); if(vset) LED=1;else LED=0; display_time(); buf0=cl/100+0x30;/ASSIC码转化为数字 i=cl/10; buf1=i%10+0x30; i=cl; buf2=i%10+0x30; buf3=.; i=cl*10; buf4=i%10+0x30; buf5= ; for(i=0;i0) gbn-; /如果光标位置大于0，则光标左移 break; case R: if(gbn2) gbn+; /如果光标位置小于2，则光标右移 break; case UP:break; case DOWN:break; case ADD: if(setbufgbn0) setbufgbn-; /如果此时光标位置的数据大于0，那么数据进行减操作break; default:break; if(escset=1) break; display_setdat(); if(key7) break; delay(1); void display_setbt1(void)/在第x行，第y列显示年月日时分秒的数据 write_cmd1(0x9f);display_dat(4,4,year/16);display_dat(4,5,year%16);display_char(4,6,-);display_dat(4,7,mon/16);display_dat(4,8,mon%16);display_char(4,9,-);display_dat(4,10,day/16);display_dat(4,11,day%16);display_dat(5,4,hour/16);display_dat(5,5,hour%16);display_char(5,6,:);display_dat(5,7,min/16);display_dat(5,8,min%16);display_char(5,9,:);display_dat(5,10,sec/16);display_dat(5,11,sec%16); sbuf0=year/16; /年的十位 sbuf1=year%16; /年的个位 sbuf2=-; sbuf3=mon/16;/月的十位 sbuf4=mon%16;/月的个位 sbuf5=-; sbuf6=day/16;/天的十位 sbuf7=day%16;/天的个位void display_setdat1(void) /显示数据设置及位置 display_dat(4,4,sbuf0); display_dat(4,5,sbuf1); display_dat(4,6,sbuf2); display_dat(4,7,sbuf3); display_dat(4,8,sbuf4); display_dat(4,9,sbuf5); display_dat(4,10,sbuf6); display_dat(4,11,sbuf7); write_cmd3(4+gbn,4,0x21);void setsj(void) uchar escset; escset=0; gbn=0; while(1) key=read_key(); /检测是否有键按下