51单片机基本程序

1、1第一位隔一秒闪烁一次#include<reg52.h>#define uint unsigned intsbit led1=P1A0;uint i;uint j;void main() while(1)led1=0;for(i=1000;i>0;i-)for(j=110;j>0;j-);led1=1;for(i=1000;i>0;i-)for(j=110;j>0;j-); 2复杂广告灯|#include<reg52.h>#define uint unsigned int#define uchar unsigned charuchar disco

2、de=0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F1/傀水灯0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF血流水0xAA,0x55,0xAA,0x55,0xAA,0x55,0xFF隔灯闪烁 3 次0xF0,0x0F,0xF0,0x0F,0xFFl/四盏。低四盏闪烁 2 次 0x33,0xCC,0x33,0xCC,0x33,0xCC,0xFW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=0

3、xFF;while(1)for(i=0;i<35;i+)P0=discodei;delayms(250);3 拉幕式与闭幕式广告灯#include<reg52.h>#define uint unsigned int#define uchar unsigned charuchar discode14=0x18,0x24,0x42,0x81;uchar discode24=0x7E,0x3C,0x18,0x00;void delayms(uint ms)uint i;while(ms-)for(i=0;i<120;i+);void main(void)uchar i,j;P

4、0=0xFF;while(1)for(i=0;i<4;i+)j=discode1i;P0=j;delayms(500);j=0xFF;P0=j;delayms(500);for(i=0;i<4;i+)j=discode2i;P0=j;delayms(500);4 流水灯跑马灯左移右移#include<reg52.h>#define uint unsigned int#define uchar unsigned char void delay(uint s)uint i;while(s-)for(i=0;i<120;i+);void main(void)uchar

5、i,j;P0=0xFF;while(1)j=0x01;for(i=0;i<8;i+)P0=j;delay(500);j=j<<1;P0=0xFF;delay(1000);j=0x80;for(i=0;i<8;i+)P0=j;delay(500);j=j>>1;5 千位静态显示数字#include<reg52.h>sbit SMG_q = P1A0; /定义数码管阳级控制脚（千位） sbit SMG_b = P1A1； 定义数码管阳级控制脚（百位） sbit SMG_s = P1A2; /定义数码管阳级控制脚（十位）sbit SMG_g = P1A

6、3; /定义数码管阳级控制脚（个位）void main（）SMG_q=0;P0=0xF8;while（1）;6， 4 位数码管同时静态显示#include<reg52.h>#define unchar unsigned char#define uint unsigned intsbit SMG_q = P1A0; /定义数码管阳级控制脚（千位）sbit SMG_b = P1A1; /定义数码管阳级控制脚（百位）sbit SMG_s = P1A2; /定义数码管阳级控制脚（十位）sbit SMG_g = P1A3; /定义数码管阳级控制脚（个位） unchar mun;uchar;

7、code table=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;void delay(uint);void main(void)SMG_q=0; SMG_b=0; SMG_s=0; SMG_g=0;/P1=0xf0;两种都可以实现。00while(1)for(mun=0;mun<16;mun+)P0=tablemun;delay(500);void delay(uint s)uint i;while(s-)for(i=120;i>0;i-);7.数码管动态显示#in

8、clude<reg52.h>#define uchar unsigned char#define uint unsigned intsbit q = P1A0; /定义数码管阳级控制脚(千位) sbit b = P1A1; 定义数码管阳级控制脚(百位) sbit s = P1A2; /定义数码管阳级控制脚(十位) sbit g = P1A3; /定义数码管阳级控制脚(个位) /unchar mun;uchar; code table=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,

9、0x8e;void delay(uint);void main(void)while(1)q=0;P0=table1;delay(500);q=1;b=0;P0=table2;delay(500);b=1;s=0;P0=table3;delay(500);s=1;g=0;P0=table4;delay(500);g=1;void delay(uint s)uint i;while(s-) for(i=120;i>0;i-);8.1 中断定时器0工作1LED 1s闪烁#include<reg52.h>#define uint unsigned int#define uchar

10、unsigned charsbit led1=P1A0;uchar num;void main()TMOD=0x01;TH0=(65536-45872)2/ 56;TL0=(65536-45872)%256;EA=1;ET0=1;TR0=1;while(1);void T0_time() interrupt 1TH0=(65536-45872)2/ 56;TL0=(65536-45872)%256;num+;if(num=50)num=0;led1=led1;8.2 中断定时器LED,前两位数码管59s循环计数#include<reg52.h>#define uchar unsig

11、ned char#define uint unsigned int sbit led1=P0A0;uchar code table= 0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void delay(uint);void display(uchar,uchar);uchar num,num1,num2,shi,ge;void main(void)TMOD=0x11;TH0=(65536-45872)2/56;TL0=(65536-45872)%256;TH1=(65536-

12、45872)2/56;TL1=(65536-45872)%256;EA=1;ET0=1;ET1=1;TR0=1;TR1=1;while(1) display(shi,ge);void display(uchar shi,uchar ge) P1=0xff;P1=0xfd;P0=tableshi;delay(10);P1=0x00;P1=0xff;P1=0xfe;P0=tablege;delay(10);P1=0x00;void delay(uint s)uint i,j;for(i=s;i>0;i-) for(j=110;j>0;j-);void T0_time()interrup

13、t 1TH0=(65536-45872)2/56;TL0=(65536-45872)%256;num1+;if(num1=50)num1=0;led1=led1;void T1_time()interrupt 3TH1=(65536-45872)2/56;TL1=(65536-45872)%256;num2+;if(num2=20)num2=0;num+;if(num=60)num=0;shi=num/10;ge=num%10;/ 灯的亮灭。 。 。 。9.1 独立键盘使用#include<reg52.h>#define uchar unsigned char#define uin

14、t unsigned intsbit k1=P3A4;/ 独立键盘，k1 k2 k3 k4 分别接，p34.p35 p36 p37.sbit k2=P3A5;sbit k3=P3A6;sbit k4=P3A7；sbit d=P1A2;sbit c=P1A3;uchar code table=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void delayms(uint);uchar numt0,num;void display(uchar numdis) / 显示 59s 的常

15、用方式 uchar shi,ge;shi=numdis/10;ge=numdis%10;P1=0xff; / 控制十位数字P1=0xfd;P0=tableshi;delayms(10);P1=0x00;P1=0xff; / 控制个位数字P1=0xfe;P0=tablege;delayms(10);P1=0x00;void delayms(uint xms) / 简单的延时程序uint i,j;for(i=xms;i>0;i-) for(j=110;j>0;j-);void init() / 初始化函数TMOD=0x01;TH0=(65536-45872)2/56;TL0=(6553

16、6-45872)%256;EA=1;ET0=1;void keyscan()if(k1=0)delayms(10);if(k1=0)num+;if(num=60)num=0;while(!k1);/ 控制键盘的程序/ 去抖动延时/ 等待按键释放if(k2=0)delayms(10);if(k2=0)if(num=0) num=60;num-;while(!k2);if(k3=0)delayms(10);if(k3=0)num=0;while(!k3);if(k4=0)delayms(10);if(k4=0)while(!k4);TR0=TR0;void main() / 主函数init();

17、/1,先初始化数据init()while(1)keyscan(); / 键盘选择？display(num); / 显示两位数字函数void T0_time()interrupt 1/ 中断服务程序TH0=(65536-45872)2/56;TL0=(65536-45872)%256;numt0+;if(numt0=20)/1s 的判断numt0=0;num+;if(num=60)num=0;9.2矩阵键盘使用#include<reg52.h>#define uchar unsigned char#define uint unsigned int uchar code table=0

18、xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void delayms(uint xms)uint i,j;for(i=xms;i>0;i-) for(j=110;j>0;j-);void display(uchar num)P0=tablenum;P1=0xf0;void jianpan()uchar temp,key;P3=0xfe;temp=P3;temp=temp&0xf0;if(temp!=0xfe) /11111 高位没有零， (没有键按下)dela

19、yms(10);temp=P3; / 随时可能有键按下temp=temp&0xf0;if(temp!=0xfe)temp=P3;switch(temp)case 0xee:key=0;break;case 0xde:key=1;break;case 0xbe:key=2;break;case 0x7e:key=3;break;while(temp!=0xf0) / 等待键盘释放temp=P3;temp=temp&0xf0;display(key);P3=0xfd;temp=P3;temp=temp&0xf0;if(temp!=0xfe) /222222 高位没有零， (没有键按下)delayms(10);temp=P3;temp=temp&0xf0;if(temp!=0xfe)temp=P3;switch(temp)case 0xed:key=4;break;case 0xdd:key=5;break;case 0xbd:key=6;break;case 0x7d:key=7;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;di