LED 温度 ds18b20 51单片机 含 protues 仿真 课程设计

#include"reg52.h" #define uchar unsigned char #define uint unsigned int unsigned char code dispbit[]={0x05,0x04,0x03,0x02,0x01,0x00}; unsigned char code dispcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; sbit RS_LCD=P2^0; sbit EN_LCD=P2^1; sbit dot=P0^7; sbit DQ_DS18B20=P1^0; uchar tk=0x04,tg=5; uint TEMP_H=0,TEMP_L=0,TEMPERATURE=0,SIGN=0,DECIMAL=0,TEMP1=0,SIGN1=0,DEC1=0; uchar flag=0,SHI=0,GE=0,BAI=0XFF; uchar code DECP[16]={0,0,1,0,2,3,0,4,5,0,6,0,7,8,0,9}; uchar code DECN[16]={0,0,9,8,0,7,0,6,5,0,4,3,0,2,0,1}; void DELAY(uint POSTPONE) { while(POSTPONE--); } //****************************************** LED SEGMENT ************************************************** void LED_DIS() { if(SIGN) { P2=0X00; P0=0XBF; P0=0XFF; } else if(BAI==0XF9){ P2=0X00; P0=0XF9; P0=0XFF; } P2=0x01; P0=dispcode[SHI]; P0=0xff; P2=0x02; P0=dispcode[GE]&0x7f; P0=0xff; P2=0x03; P0=dispcode[DECIMAL]; P0=0xff; P2=0x04; P0=0X9C; P0=0xff; P2=0x05; P0=0XC6; P0=0xff; } //****************************************** LED END ****************************************************** /* //******************************************* LCD SEGMENT ************************************************* void WR_LCD_COM(uint LCD_COM) { RS_LCD=0; P0=LCD_COM; EN_LCD=1; DELAY(100); EN_LCD=0; } void WR_LCD_DATA(uint LCD_DATA) { RS_LCD=1; P0=LCD_DATA; EN_LCD=1; DELAY(100); EN_LCD=0; } void WR_LCD_POINT(uchar LCD_ADD,uchar LCD_DATA) //LCD指定位置写数据 { WR_LCD_COM(LCD_ADD); WR_LCD_DATA(LCD_DATA); } void WR_LCD_NUM(uchar LCD_ADD, uchar NUM) { WR_LCD_COM(LCD_ADD); WR_LCD_DATA(NUM/10+48); WR_LCD_DATA(NUM%10+48); } void WR_LCD_SENTENCE(uchar ADD_LCD,uchar COUNT,uchar *SEN) { uchar i; WR_LCD_COM(ADD_LCD); for(i=COUNT;i>0;i--) { WR_LCD_DATA(*SEN); SEN++; } } WR_LCD_TEMPERATURE() { if(flag==100) { if(TEMP1!=TEMPERATURE||SIGN!=SIGN||DEC1!=DECIMAL) { TEMP1=TEMPERATURE; SIGN1=SIGN; DEC1=DECIMAL; if(SIGN) WR_LCD_POINT(0X80+0X49,'-'); else if(TEMP1>99) { WR_LCD_POINT(0X80+0X49,'1'); TEMPERATURE%=100; } else WR_LCD_POINT(0X80+0X49,' '); WR_LCD_NUM(0X80+0X4A,TEMPERATURE); WR_LCD_POINT(0X80+0X4C,'.'); WR_LCD_POINT(0X80+0X4D,DECIMAL+48); WR_LCD_POINT(0X80+0X4E,0XDF); WR_LCD_POINT(0X80+0X4F,'C'); } } else { flag++; if(flag==1) WR_LCD_SENTENCE(0X80+0X49,7,"READ "); else if(flag==25) WR_LCD_SENTENCE(0X80+0X49,7,"READ. "); else if(flag==50) WR_LCD_SENTENCE(0X80+0X49,7,"READ.. "); else if(flag==75) WR_LCD_SENTENCE(0X80+0X49,7,"DONE..."); } } //********************************************* LCD END ********************************************************** */ //************************************************** DS18B20 SEGMENT ********************************************** char INIT_DS18B20() { uchar DQ; DQ_DS18B20=0; DELAY(65); DQ_DS18B20=1; DELAY(4); DQ=DQ_DS18B20; DELAY(11); return DQ; } void START_DS18B20() { char i=0; while(!i) { if(!INIT_DS18B20()) i=1; // else WR_LCD_SENTENCE(0X80+0X40+9,5,"ERROR"); } } void WR_DS18B20(uchar COM_DS18B20) { uchar i; for(i=8;i>0;i--) { DQ_DS18B20=0; COM_DS18B20>>=1; DQ_DS18B20=CY; DELAY(6); DQ_DS18B20=1; } } RE_DS18B20() { uchar i,j,TEMP; for(j=2;j>0;j--) { for(i=8;i>0;i--) { DQ_DS18B20=0; DQ_DS18B20=1; DELAY(3); TEMP>>=1; if(DQ_DS18B20) TEMP|=0X80; DELAY(5); } if(j==1) TEMP_H=TEMP; else TEMP_L=TEMP; } } void RE_TEMPERATURE() { START_DS18B20(); WR_DS18B20(0XCC); WR_DS18B20(0X44); START_DS18B20(); WR_DS18B20(0XCC); WR_DS18B20(0XBE); RE_DS18B20(); TEMPERATURE=TEMP_H*256+TEMP_L; DECIMAL=DECP[TEMP_L&0X0F]; SIGN=TEMP_H/16; if(SIGN) { TEMPERATURE=~TEMPERATURE*0.0625; DECIMAL=DECN[TEMP_L&0X0F]; if(DECIMAL==0) TEMPERATURE+=1; } else TEMPERATURE*=0.0625; TEMP1=TEMPERATURE; if(TEMP1>99) { TEMP1%=100; BAI=0XF9; } else BAI=0XFF; SHI=TEMP1/10; GE=TEMP1%10; } //************************************************** DS18B20 END ************************************************** /* void init() { EN_LCD=0; WR_LCD_COM(0x38); WR_LCD_COM(0x0C); WR_LCD_COM(0x06); WR_LCD_COM(0X01); WR_LCD_COM(0x80); } */ void main() { // init(); P2=0X00; P0=0XFF; EA=1; ET0=1; TMOD=0X01; TH0=0X3c; TL0=0xb0; TR0=1; flag=100; while(flag--) RE_TEMPERATURE(); while(1) { LED_DIS(); } } void timer() interrupt 1 { RE_TEMPERATURE(); }