“國信長天杯”第三屆全國電子專業(yè)人才設(shè)計(jì)與技能大賽-單片機(jī)設(shè)計(jì)與開發(fā)項(xiàng)目預(yù)賽總程序、流程圖、電路圖

一、總程序#include<reg52.h>#include<intrins.h>#defineucharunsignedchar#defineuintunsignedintsbitkey4=P3^3;sbitkey5=P3^2;sbitkey6=P3^1;sbitkey7=P3^0;sbitPWM=P3^4;//直流電機(jī)控制輸出voiddelayms(uintz){uinti,j;for(i=0;i<z;i++)for(j=0;j<112;j++);}uchartable_du[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//0--9uchartable_we[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};//0--7ucharwendu[6];signedcharwendu_H,wendu_L,wendu_now;前溫度值//上限值、下限值、當(dāng)ucharcnt;#include"24C02.h"#include"18B20.h"/*數(shù)碼管顯示*/voiddisplay(){if(wendu_L<0)wendu_L=-wendu_L;wendu[0]=wendu_H%100/10;wendu[1]=wendu_H%10;wendu[2]=wendu_L%100/10;wendu[3]=wendu_L%10;P2=0x00;文件使用試用版本創(chuàng)建P0=0xff;P0=table_du[wendu[0]];P2|=0xe0;P2&=0x1f;P0=table_we[0];P2|=0xc0;P2&=0x3f;delayms(1);P0=table_du[wendu[1]];P2|=0xe0;P2&=0x1f;P0=table_we[1];P2|=0xc0;P2&=0x3f;delayms(1);P0=table_du[wendu[2]];P2|=0xe0;P2&=0x1f;P0=table_we[2];P2|=0xc0;P2&=0x3f;delayms(1);P0=table_du[wendu[3]];P2|=0xe0;P2&=0x1f;P0=table_we[3];P2|=0xc0;P2&=0x3f;delayms(1);P0=table_du[wendu[4]];P2|=0xe0;P2&=0x1f;P0=table_we[6];P2|=0xc0;P2&=0x3f;delayms(1);文件使用試用版本創(chuàng)建P0=table_du[wendu[5]];P2|=0xe0;P2&=0x1f;P0=table_we[7];P2|=0xc0;P2&=0x3f;delayms(1);}/*開繼電器*/voidrelay(){P0=0x10;P2=0xa0;P2=0x00;}/*按鍵檢測(cè)*/voidkeyscan1(){if(key4==0){/*加上限*/delayms(2);if(key4==0){wendu_H++;if(wendu_H>99)wendu_H=99;write_24C02(0x00,wendu_H);}while(!key4);}elseif(key5==0)/*加下限*/{delayms(2);if(key5==0){wendu_L++;if(wendu_L>wendu_H)wendu_L=wendu_H;write_24C02(0x01,wendu_L);}while(!key5);}文件使用試用版本創(chuàng)建elseif(key6==0)/*減上限*/{delayms(2);if(key6==0){wendu_H--;if(wendu_H<wendu_L)wendu_H=wendu_L;write_24C02(0x00,wendu_H);}while(!key6);}elseif(key7==0)/*減下限*/{delayms(2);if(key7==0){wendu_L--;if(wendu_L<0)wendu_H=0;write_24C02(0x01,wendu_L);}while(!key7);}}/*溫度控制*/voidjiance(){if(wendu_now>wendu_H){TR0=1;}elseif((wendu_now<wendu_H)&&(wendu_now>wendu_L)){TR0=0;PWM=1;}if(wendu_now<wendu_L){relay();}elseif((wendu_now<wendu_H)&&(wendu_now>wendu_L)){P0=0x00;P2=0xa0;P2=0x00;}}文件使用試用版本創(chuàng)建voidmain(){P0=0x00;//清uln2003P2=0xa0;P2=0x00;P0=0xff;//清數(shù)碼管P2=0xe0;P2=0x00;P0=0xff;//清流水燈P2=0x80;P2=0x00;TMOD=0x01;TH0=(65536-100)/256;TH0=(65536-100)%256;ET0=1;//TR0=1;EA=1;wendu_H=read_24C02(0x00);wendu_L=read_24C02(0x01);while(1){keyscan1();Read_temperature();jiance();display();}}/*定時(shí)器0中斷服務(wù)函數(shù)*/voidtimer0()interrupt1{TH0=(65536-100)/256;TH0=(65536-100)%256;cnt++;if(cnt==3){PWM=0;文件使用試用版本創(chuàng)建}if(cnt==10){cnt=0;PWM=1;}}//#include"18B20.h"sbitDQ=P1^4;voiddelay(uinti){while(i--);}voidDS18B20_init(void){DQ=1;delay(8);DQ=0;delay(80);DQ=1;delay(10);delay(5);}ucharDS18B20_read_char(void){uchardat=0;uchari=0;for(i=8;i>0;i--){DQ=0;dat>>=1;DQ=1;if(DQ)dat|=0x80;delay(5);}return(dat);文件使用試用版本創(chuàng)建}voidDS18B20_write_char(uchardat){uchari=0;for(i=8;i>0;i--){DQ=0;DQ=dat&0x01;delay(5);DQ=1;dat>>=1;}delay(5);}voidRead_temperature(void){uchara=0;uintb=0;uintt=0;ucharTempH;DS18B20_init();DS18B20_write_char(0xCC);DS18B20_write_char(0x44);delay(200);DS18B20_init();DS18B20_write_char(0xCC);DS18B20_write_char(0xBE);a=DS18B20_read_char();b=DS18B20_read_char();t=b;t=(t<<8)|a;TempH=t>>4;wendu_now=TempH;wendu[4]=TempH%100/10;wendu[5]=TempH%10;}//#include"24C02.h"文件使用試用版本創(chuàng)建#definesomenop{_nop_();_nop_();_nop_();_nop_();_nop_();}sbitSDA=P2^1;sbitSCL=P2^0;voidstart(){SDA=1;_nop_();SCL=1;somenop;SDA=0;somenop;SCL=0;}voidstop(){SDA=0;_nop_();SCL=1;somenop;SDA=1;}voidack(){SDA=1;somenop;SCL=1;somenop;SCL=0;SDA=1;somenop;}voidwaitack(){SDA=1;somenop;SCL=1;somenop;if(SDA){文件使用試用版本創(chuàng)建SCL=0;stop();}elseSCL=0;}/*先送一個(gè)字節(jié)的高位*/voidsendbyte(uchardat){uchari;for(i=0;i<8;i++){if(dat&0x80)SDA=1;elseSDA=0;somenop;SCL=1;dat<<=1;somenop;SCL=0;}}ucharreadbyte(){uchari;uchardat;for(i=0;i<8;i++){SCL=1;somenop;dat<<=1;if(SDA)dat|=0x01;SCL=0;somenop;}returndat;}voidwrite_24C02(ucharadd,uchardat){start();文件使用試用版本創(chuàng)建sendbyte(0xa0);waitack();sendbyte(add);waitack();sendbyte(dat);waitack();stop();}