单片机C语言程序经典实例.doc

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1、发光二极管间隔1s流动，8位数码管间隔2s显示0-F#include#include#define uint unsigned int#define uchar unsigned charuchar temp,aa,num;sbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint z);void main()num=0;aa=0;TMOD=0x01;TH0=(65536-5

2、0000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;temp=0xfe;P1=temp;dula=1;P0=table0;dula=0;wela=1;P0=0xc0;wela=0;while(1)delay(1000);temp=_crol_(temp,1);P1=temp;/*if(aa=40)aa=0;num+;if(num=16)num=0;dula=1;P0=tablenum;dula=0;*/void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void timer0() in

3、terrupt 1 TH0=(65536-50000)/256;TL0=(65536-50000)%256;aa+;if(aa=40)aa=0;num+;if(num=16)num=0;dula=1;P0=tablenum;dula=0;6位数码管显示123456：#include#include#define uint unsigned int#define uchar unsigned charuchar temp,aa,numdu,numwe;sbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6

4、d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;uchar code tablewe=0xfe,0xfd,0xfb,0xf7,0xef,0xdf;/void delay(uint z);void main()numdu=0;numwe=0;aa=0;TMOD=0x01;TH0=(65536-5000)/256;TL0=(65536-5000)%256;EA=1;ET0=1;TR0=1;while(1)/delay(1000);/temp=_crol_(temp,1);/P1=temp;if(aa=1)aa=0;numdu+;if(numd

5、u=7)numdu=1;dula=1;P0=tablenumdu;dula=0;wela=1;P0=tablewenumwe;wela=0;numwe+;if(numwe=6)numwe=0;/*void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);*/void timer0() interrupt 1 TH0=(65536-5000)/256;TL0=(65536-5000)%256;aa+;三位数码管间隔1s显示从000加到100，循环#include#define uint unsigned int#define uchar

6、unsigned charuchar temp,aa,bai,shi,ge;sbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void display(uchar bai,uchar shi,uchar ge);void delay(uint z);void init();void main()init();/初始化子程序while(1)if(aa=20) aa=0;temp+;if(temp=1

7、00) temp=0; bai=temp/100;shi=temp%100/10;ge=temp%10; display(bai,shi,ge);void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void display(uchar bai,uchar shi,uchar ge) dula=1;P0=tablebai;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(1);dula=1;P0=tableshi;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0;delay

8、(1);dula=1;P0=tablege;dula=0;P0=0xff;wela=1;P0=0xfb;wela=0;delay(1);void init()wela=0;dula=0;temp=0;TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;void timer0() interrupt 1TH0=(65536-50000)/256;TL0=(65536-50000)%256;aa+;Lesson5_1：#include #include #define uchar unsigned char#

9、define uint unsigned intsbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x76,0x79,0x38,0x3f,0;uchar temp,t0,t1,bai,shi,ge,flag,flag1;uint shu;void init();void display(uchar,uchar,uchar,uchar,uchar,uchar);void delay(uint z)u

10、int t1,y;for(t1=z;t10;t1-)for(y=110;y0;y-);void main()init();while(1)if(flag1!=1)display(7,6,5,bai,shi,ge);elsedisplay(16,17,18,18,19,20);void init()shu=432;temp=0xfe;P1=temp;TMOD=0x11;TH0=(65536-50000)/256;TL0=(65536-50000)%256;TH1=(65536-50000)/256;TL1=(65536-50000)%256;EA=1;ET0=1;ET1=1;TR0=1;TR1=

11、1;void timer0() interrupt 1TH0=(65536-50000)/256;TL0=(65536-50000)%256;t0+;if(flag!=1)if(t0=10)t0=1;temp=_crol_(temp,1);P1=temp;elseif(t0%4=0)P1=P1;if(t0=60)TR0=0;P1=0xff;flag1=1;void timer1() interrupt 3TH1=(65536-50000)/256;TL1=(65536-50000)%256;t1+;if(t1=2)t1=0;shu-;bai=shu/100;shi=shu%100/10;ge=

12、shu%10;if(shu=398)TR0=0;TH0=(65536-50000)/256;TL0=(65536-50000)%256;TR0=1;flag=1;t0=0;P1=0xff;TR1=0;void display(uchar aa,uchar bb,uchar cc,uchar ba,uchar sh,uchar g) dula=1;P0=tableaa;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(1); dula=1;P0=tablebb;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0;delay(1); dul

13、a=1;P0=tablecc;dula=0;P0=0xff;wela=1;P0=0xfb;wela=0;delay(1); dula=1;P0=tableba;dula=0;P0=0xff;wela=1;P0=0xf7;wela=0;delay(1);dula=1;P0=tablesh;dula=0;P0=0xff;wela=1;P0=0xef;wela=0;delay(1);dula=1;P0=tableg;dula=0;P0=0xff;wela=1;P0=0xdf;wela=0;delay(1);Lesson5_2：键盘#include#define uint unsigned int#d

14、efine uchar unsigned charsbit d1=P10;sbit dula=P26;sbit wela=P27;sbit key1=P34;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;uchar num;void delay(uint z) uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void main() wela=1;P0=0xfe;wela=0;P3=0xff;while(1) if(k

15、ey1=0)delay(5);if(key1=0)d1=0;num+;if(num=10)num=0;while(!key1);delay(5);while(!key1);elsed1=1;dula=1;P0=tablenum;dula=0;Lesson5_3：键盘#include#define uint unsigned int#define uchar unsigned charsbit dula=P26;sbit wela=P27;sbit key1=P34;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6

16、f,0x77,0x7c,0x39,0x5e,0x79,0x71,0;uchar num,temp,num1;void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);uchar keyscan();void display(uchar aa);void main()num=17;dula=1;P0=0;dula=0;wela=1;P0=0xc0;wela=0;while(1)display(keyscan();void display(uchar aa)dula=1;P0=tableaa-1;dula=0;uchar keyscan()

17、P3=0xfe;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xee:num=1;break;case 0xde:num=2;break;case 0xbe:num=3;break;case 0x7e:num=4;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfd;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5

18、);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xed:num=5;break;case 0xdd:num=6;break;case 0xbd:num=7;break;case 0x7d:num=8;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfb;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switc

19、h(temp)case 0xeb:num=9;break;case 0xdb:num=10;break;case 0xbb:num=11;break;case 0x7b:num=12;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xf7;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xe7:num=13;break;case 0xd7:num=14;break

20、;case 0xb7:num=15;break;case 0x77:num=16;break;while(temp!=0xf0) temp=P3;temp=temp&0xf0;return num;Lesson6_1：A/D D/A#includesbit csda=P32;sbit wr=P36;void main() csda=0;wr=0;P0=0;while(1);Lesson6_1：A/D D/A#include#define uchar unsigned char#define uint unsigned intsbit wr=P36;sbit rd=P37;void delay(

21、uint z)uint t1,y;for(t1=z;t10;t1-)for(y=110;y0;y-);void init();void start();void main()init();while(1)start();delay(20);rd=0; delay(10);rd=1;delay(10);void init()P0=0;void start()wr=1;wr=0;wr=1; Lessom7_1：串口 #includeunsigned char flag,a;void main()TMOD=0x20;/设置定时器1为工作方式2TH1=0xfd;TL1=0xfd;TR1=1;REN=1

22、;SM0=0;SM1=1;EA=1;ES=1;while(1)/*if(RI=1)RI=0;P1=SBUF;*/if(flag=1)ES=0;flag=0;SBUF=1;/28;while(!TI);TI=0;SBUF=2;/28;while(!TI);TI=0;SBUF=3;/28;while(!TI);TI=0;ES=1;void ser() interrupt 4RI=0;/P1=SBUF;a=SBUF;flag=1;Lesson8_1：#include#define uchar unsigned char#define uint unsigned intuchar code table

23、=I LIKE MCU!;sbit lcden=P34;sbit lcdrs=P35;sbit dula=P26;sbit wela=P27;uchar num;void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void write_com(uchar com)lcdrs=0;P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_data(uchar date)lcdrs=1;P0=date;delay(5);lcden=1;delay(5);lcden=0;void init(

24、)dula=0;wela=0;lcden=0;write_com(0x38);write_com(0x0e);write_com(0x06);write_com(0x01);write_com(0x80+0x10);void main()init();for(num=0;num11;num+)write_data(tablenum);delay(20);/write_com(1);write_com(0x80+0x53);for(num=0;num13;num+)write_data(table1num);delay(20);for(num=0;num16;num+)write_com(0x1

25、8);delay(20);while(1);Lesson9_1：IIC总线#include#define uchar unsigned charsbit sda=P20;sbit scl=P21;uchar a;void delay() ; void start() /开始信号sda=1;delay();scl=1;delay();sda=0;delay();void stop() /停止sda=0;delay();scl=1;delay();sda=1;delay();void respons() /应答uchar i;scl=1;delay();while(sda=1)&(i250)i+;

26、scl=0;delay();void init()sda=1;delay();scl=1;delay();void write_byte(uchar date)uchar i,temp;temp=date;for(i=0;i8;i+)temp=temp1;scl=0; delay();sda=CY;delay();scl=1;delay();/scl=0; / delay();scl=0;delay();sda=1;delay();uchar read_byte()uchar i,k;scl=0;delay();sda=1;delay();for(i=0;i8;i+)scl=1;delay()

27、;k=(k0;a-) for(b=100;b0;b-);void write_add(uchar address,uchar date)start();write_byte(0xa0);respons();write_byte(address);respons();write_byte(date);respons();stop();uchar read_add(uchar address)uchar date;start();write_byte(0xa0);respons();write_byte(address);respons();start();write_byte(0xa1);res

28、pons();date=read_byte();stop();return date;void main()init();write_add(23,0xaa);delay1(100);P1=read_add(23);while(1);Lesson10_1：#include#define uchar unsigned char #define uint unsigned intsbit dula=P26;sbit wela=P27;sbit rs=P35;sbit lcden=P34;sbit s1=P30;sbit s2=P31;sbit s3=P32;sbit rd=P37;uchar co

29、unt,s1num;char miao,shi,fen;uchar code table= 2007-7-30 MON;uchar code table1= 00:00:00;void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void write_com(uchar com)rs=0;lcden=0;P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_date(uchar date)rs=1;lcden=0;P0=date;delay(5);lcden=1;delay(5);l

30、cden=0;void init()uchar num;dula=0;wela=0;lcden=0;/fen=59;/miao=53;/shi=23;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_com(0x80);for(num=0;num15;num+)write_date(tablenum);delay(5);write_com(0x80+0x40);for(num=0;num12;num+)write_date(table1num);delay(5);TMOD=0x01;TH0=(65536-

31、50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;void write_sfm(uchar add,uchar date)uchar shi,ge;shi=date/10;ge=date%10;write_com(0x80+0x40+add);write_date(0x30+shi);write_date(0x30+ge);void keyscan()rd=0;if(s1=0)delay(5);if(s1=0)s1num+;while(!s1);if(s1num=1)TR0=0;write_com(0x80+0x40+10);write_com

32、(0x0f);if(s1num=2)write_com(0x80+0x40+7);if(s1num=3)write_com(0x80+0x40+4);if(s1num=4)s1num=0;write_com(0x0c);TR0=1;if(s1num!=0)if(s2=0)delay(5);if(s2=0)while(!s2);if(s1num=1)miao+;if(miao=60)miao=0;write_sfm(10,miao); write_com(0x80+0x40+10);if(s1num=2)fen+;if(fen=60)fen=0;write_sfm(7,fen); write_c

33、om(0x80+0x40+7);if(s1num=3)shi+;if(shi=24)shi=0;write_sfm(4,shi);write_com(0x80+0x40+4);if(s3=0)delay(5);if(s3=0)while(!s3);if(s1num=1)/*if(miao=0)miao=59;write_sfm(10,miao);write_com(0x80+0x40+10);*/miao-;if(miao=-1)miao=59;write_sfm(10,miao); write_com(0x80+0x40+10);if(s1num=2)fen-;if(fen=-1)fen=59;write_sfm(7,fen);write_com(0x80+0x40+7);if(s1num=3)