51单片机基本程序

1、51单片机基本程序1第一位隔一秒闪烁一次#include0;i-) for(j=l 10;j0;j-); ledl = l; for(i=1000;i0;i-) for(j=l10;j0;j-); 12复杂广告灯#include#define uint unsigned int#define uchar unsigned charuchar discode=0 xFE,0 xFD,0 xFB,0 xF7,0 xEF,0 xDE0 xBF,0 x7E正向流水灯0 xBE0 xDE0 xEE0 xF7,0 xFB,0 xFD0 xFE,0 xFE反 向流 水灯_0 xAA,0 x55QxAA,0

2、x55QxAA,0 x55,0 xFF隔灯闪烁3次0 xF0,0 x0F,0 xF0,0 x0F,0 xFFy/高四盏。低四盏闪烁2次0 x33,0 xCC,0 x33,0 xCC,0 x33,0 xCC,0 xFF 隔两盏闪烁3次；void delayms(uint ms)uint i;while(ms)for(i=0;i 120;i+);void main(void)uchar i;P0二OxFF;while(l)for(i=0;i35 ;i+)PO=discodei;delayms(250);51单片机基本程序)3拉幕式与闭幕式广告灯#include#define uint unsign

3、ed int#define uchar unsigned charuchar discode l4=0 x 18,0 x24,0 x42,0 x81); uchar discode24= 0 x7E,0 x3C,0 x 18,0 x00;void delayms(uint ms)uint i;while(ms)for(i=0;i 120;i+);void niain(void)uchar ij;P0=0 xFF;while(l) for(i=0;i4;i+)j=discodeli;P0=j； delayms(500);j=0 xFF;PO=j;delayms(500);for(i=0;i4;i

4、+)j=discode2i;PO=j;delayms(500);)4流水灯跑马灯左移右移#include #define uint unsigned int #define ucharunsigned char void delay(uint s)uint i;51单片机基本程序while(s) for(i=0;i 120;i+);)void main(void)uchar ij;P0=0 xFF; while(l)j=OxOl; for(i=0;i&i+)PO=j； delay(500);j=jl;P0=0 xFF; delay(lOOO); j=Ox8O;for(i=0;i&

5、;i+)PO二j; delay(5OO);j=jh)15千位静态显示数字51单片机基本程序#includesbit SMG_qP1AO;定义数码管阳级控制脚sbit SMG_b =PIT; 定义数码管阳级控制脚sbitSMG_s = PlA2;定义数码管阳级控制脚sbitSMG_g = PP3;定义数码管阳级控制脚voidmain（）SMG_q=O;P0=0 xF8; while(l);6, 4位数码管同时静态显示#include#define unchar unsigned char#define uint unsigned intsbit SMG_q = PlA0;定义数码管阳级控制脚（千

6、位）sbit SMG_b = PlAl;定义数码管阳级控制脚（百位）sbit SMG_s = PlA2;定义数码管阳级控制脚（十位）sbitSMG二PM3;定义数码管阳级控制脚（个位）unchar mun;uchar; code table=0 xc0,0 xf9.0 xa4,0 xb0,0 x99,0 x92,0 x82,Oxf&0 x80,0 x90,0 x88,0 x83,0 xc6,0 xa 1,0 x86,0 x8e;void delay(uint);void niain(void)SMG_q=0; SMG_b=0; SMG_s=0; SMG_g=0;/Pl=0 xf0;两种

7、都可攻实现while(l)for(mun=0;mun0;i);（千位）（百位）51单片机基本程序7数码管动态显示#include#define uchar unsigned char#define uint unsigned intsbitq = PlAO;定义数码管阳级控制脚(千位)sbitb = pri；定义数码管阳级控制脚(白位)sbits = PlA2;定义数码管阳级控制脚(十位)sbitg = PP3;定义数码管阳级控制脚(个位)/unchar mun;uchar; code table=0 xc0,0 xf9,0 xa4,0 xb0,0 x99,0 x92,0 x82,Oxf&am

8、p;0 x80,0 x90,0 x88,0 x83,0 xc6,0 xa 1,0 x86,0 x8e);void delay(uint);void niain(void)while(l)q=0；P0=tablel;delay(500);q=l；b=0;P0=table2; delay(500); b=l;s=0;P0=table3; delay(500); s=l;g=0;P0=table4; delay(500); g=l；)void delay(uint s)uint i;while(s)for(i=120;i0;i);8.1中断定时器0工作1LED Is闪烁#include#define

9、 uint unsigned int#define uchar unsigned char51单片机基本程序sbit ledl=PlA0;uchar num;void main()TMOD=0 x01;TH0=(65536-45872)/256;TL0=(65536-45872)%256;EA=1;ETO=1;TRO=1;while(l);void T0_time() internipt 1TH0=(65536-45872)/256;TL0=(65536-45872)%256;num+;if(num=50)num=O;ledl=-ledl;8.2中断定时器LED,前两位数码管59s循环计数#i

10、nclude0;i)for(j=l 10;j0;j-);1void TO_time()interrupt ITH0=(65536-45872)/256;TL0=(65536-45872)%256;numl+;if(numl=50)num 1=0;ledl=-ledl;)51单片机基本程序void Tl_time()interrupt 3TH 1=(65536-45872)/256;TLl=(65536-45872)%256;num2+;if(num2=20)num2=0;num+;if(num=60)nuni=0;shi=nuni/10:ge=num%10;)灯的壳灭。9.1独立键盘使用#in

11、clude#define uchar unsigned char#define uint unsigned intsbit kl=P3A4;独立键盘，kl k2 k3 k4分别接，p34.p35 p36 p37.sbit k2=P3A5;sbit k3=P3A6;sbit k4=P3A7;sbit d=PlA2;sbit c=PlA3;uchar code table=0 xc0,0 xf9.0 xa4,0 xb0,0 x99,0 x92,0 x82,Oxf&0 x80,0 x90,0 x88,0 x83,0 xc6,0 xa 1,0 x86,0 x8e);void delayms(u

12、int);uchar numtO.num;void display(uchar numdis)显示59s的常用方式 uchar shi.ge;shi=numdis/10;ge二numdis% 10;51单片机基本程序Pl=Oxff;控制十位数字Pl=Oxfd;PO=tableshi;delayms(lO);Pl=0 x00;Pl=Oxff;控制个位数字Pl=Oxfe;PO=tablege;delayms(lO);Pl=0 x00;void delayms(uint xms)简单的延时程序uint ij;for(i=xms;i0;i)for(j=l 10;j0;j-);) void init()

13、初始化函数TMOD=0 x01;TH0=(65536-45872)/256;TL0=(65536-45872)%256;EA=1;ETO=1;void keyscan()控制键盘的程序if(kl=o)delayms( 10);去抖动延时if(kl=O)num+;if(num=60)nuni=0;while(!kl);等待按键释放51单片机基本程序1if(k2=0)delayms(lO);if(k2=0)if(num=0)nuni=60;num;while(!k2);if(k3=0)delayms(lO);if(k3=0)nuni=0;while(!k3);if(k4=0)delayms(lO)

14、;if(k4=0)while(!k4);TR0=TR0;void main()主函数init();1,先初始化数据init()while(l)keyscan();键盘选择？display(num);显示两位数字函数)51单片机基本程序void TO_time()internipt 1/中断服务程序TH0=(65536-45872)/256;TL0=(65536-45872)%256;numtO+;if(numt0=20) /Is的判断numtO=O;num+;if(num=60)num=0;)9.2矩阵键盘使用#include#define uchar unsigned char #defin

15、e uint unsigned int uchar code table=0 xc0,0 xf9.0 xa4,0 xb0,0 x99,0 x92,0 x82,0 xf&0 x80,0 x90,0 x88,0 x83,0 xc6,0 xa 1,0 x86,0 x8e);void delayms(uint xms)uint ij;for(i=xms;i0;i)for(j=110;j0;j-);void display(uchar num)P0=tablenum;Pl=0 xf0;void jianpan()uchar temp,key;P3=0 xfe;temp=P3;temp=temp&

16、amp;0 xf0;if(temp!=Oxfe) /llll 1高位没有零，(没有键按下)delayms(lO);temp=P3;随时可能有键按下temp=tenip&OxfO;51单片机基本程序if(temp!=Oxfe)temp=P3;switch(temp)case Oxee:key=O;break;case Oxde:key=l;break;case Oxbe:key=2;break;case 0 x7e:key=3;break;while(temp!=OxfO)等待键盘释放temp二P3; tempnemp&0 xfO;) display(key);P3=Oxfd;t

17、emp二P3;tempnemp&OxfO;if(temp!=Oxfe) /222222高位没有零，(没有键按下)delayms(lO);temp=P3;tempnemp&OxfO;if(temp!=Oxfe)tenip=P3;switch(temp)case Oxed:key=4;break;case Oxdd:key=5;break;case Oxbd:51单片机基本程序key=6;break;case Ox7d:key=7;break;while(temp!=OxfO)temp=P3; temp=temp&OxfO;display(key);P3=0 xfb;tem

18、p=P3;temp=temp&OxfO;if(temp!=Oxfe) 11333333高位没有零，(没有键按下)delayms(lO);tenip=P3;tenip=tenip&OxfO;if(temp!=Oxfe)temp=P3;switch(temp)case Oxeb:key=8;break;case Oxdb:key=9;break;case Oxbb:key=10;break;case Ox7b:key=l 1;break;while(temp!=OxfO)temp二P3;temp=temp&OxfO;)display(key);51单片机基本程序P3=Oxf7;temp二P3;temp二temp&OxfO;if(temp!=Oxfe)44444高位没有零，(没有键按下)delayms(lO);51单片