#include #define uint unsigned int sbit led1=P1^0; 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 #define uint unsigned int #define uchar unsigned char uchar discode[]={ 0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F,//正向流水灯 0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF,//反向流水灯 0xAA,0x55,0xAA,0x55,0xAA,0x55,0xFF,//隔灯闪烁3次 0xF0,0x0F,0xF0,0x0F,0xFF,//高四盏。低四盏闪烁2次 0x33,0xCC,0x33,0xCC,0x33,0xCC,0xFF//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=0xFF; while(1) { for(i=0;i<35;i++) { P0=discode[i]; delayms(250); } } } 3拉幕式与闭幕式广告灯 #include #define uint unsigned int #define uchar unsigned char uchar discode1[4]={0x18,0x24,0x42,0x81}; uchar discode2[4]={0x7E,0x3C,0x18,0x00}; void delayms(uint ms) { uint i; while(ms--) { for(i=0;i<120;i++); } } void main(void) { uchar i,j; P0=0xFF; while(1) { for(i=0;i<4;i++) { j=discode1[i]; P0=~j; delayms(500); } j=0xFF; P0=~j; delayms(500); for(i=0;i<4;i++) { j=discode2[i]; P0=~j; delayms(500); } } } 4流水灯跑马灯左移右移 #include #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 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 sbit SMG_q = P1^0; //定义数码管阳级控制脚（千位） sbit SMG_b = P1^1; //定义数码管阳级控制脚（百位） sbit SMG_s = P1^2; //定义数码管阳级控制脚（十位） sbit SMG_g = P1^3; //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 #define unchar unsigned char #define uint unsigned int sbit SMG_q = P1^0; //定义数码管阳级控制脚（千位） sbit SMG_b = P1^1; //定义数码管阳级控制脚（百位） sbit SMG_s = P1^2; //定义数码管阳级控制脚（十位） sbit SMG_g = P1^3; //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, 0xc6,0xa1,0x86,0x8e}; 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。。 while(1) { for(mun=0;mun<16;mun++) { P0=table[mun]; delay(500); } } } void delay(uint s) { uint i; while(s--) for(i=120;i>0;i--); } 7.数码管动态显示 #include #define uchar unsigned char #define uint unsigned int sbit q = P1^0; //定义数码管阳级控制脚（千位） sbit b = P1^1; //定义数码管阳级控制脚（百位） sbit s = P1^2; //定义数码管阳级控制脚（十位） sbit g = P1^3; //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, 0xc6,0xa1,0x86,0x8e}; void delay(uint); void main(void) { while(1) { q=0; P0=table[1]; delay(500); q=1; b=0; P0=table[2]; delay(500); b=1; s=0; P0=table[3]; delay(500); s=1; g=0; P0=table[4]; 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 #define uint unsigned int #define uchar unsigned char sbit led1=P1^0; uchar num; void main() { TMOD=0x01; TH0=(65536-45872)/256; TL0=(65536-45872)%256; EA=1; ET0=1; TR0=1; while(1); } void T0_time() interrupt 1 { TH0=(65536-45872)/256; 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 #define uchar unsigned char #define uint unsigned int sbit led1=P0^0; 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)/256; TL0=(65536-45872)%256; TH1=(65536-45872)/256; 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=table[shi]; delay(10); P1=0x00; P1=0xff; P1=0xfe; P0=table[ge]; 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()interrupt 1 { TH0=(65536-45872)/256; TL0=(65536-45872)%256; num1++; if(num1==50) { num1=0; led1=~led1; } } void T1_time()interrupt 3 { TH1=(65536-45872)/256; 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键盘使用 #include #define uchar unsigned char #define uint unsigned int sbit k1=P3^4; //键盘，k1 k2 k3 k4分别接，p34.p35 p36 p37. sbit k2=P3^5; sbit k3=P3^6; sbit k4=P3^7; sbit d=P1^2; sbit c=P1^3; 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的常用方式 { uchar shi,ge; shi=numdis/10; ge=numdis%10; P1=0xff; //控制十位数字 P1=0xfd; P0=table[shi]; delayms(10); P1=0x00; P1=0xff; //控制个位数字 P1=0xfe; P0=table[ge]; 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)/256; TL0=(65536-45872)%256; EA=1; ET0=1; } void keyscan() //控制键盘的程序 { if(k1==0) { delayms(10); //去抖动延时 if(k1==0) { num++; if(num==60) num=0; while(!k1); //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(); //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)/256; 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 #define uchar unsigned char #define uint unsigned int uchar code table[]={ 0xc0,0xf9,0xa4,0xb0, 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=table[num]; 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） { delayms(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; } display(key); } } P3=0xfb; temp=P3; temp=temp&0xf0; if(temp!=0xfe) //333333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 0xeb: key=8; break; case 0xdb: key=9; break; case 0xbb: key=10; break; case 0x7b: key=11; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } display(key); } } P3=0xf7; temp=P3; temp=temp&0xf0; if(temp!=0xfe) //44444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 0xe7: key=12; break; case 0xd7: key=13; break; case 0xb7: key=14; break; case 0x77: key=15; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } display(key); } } } void main(void) { P1=0x0f; //打开数码管选通开关 while(1) { jianpan(); //扫描键盘程序 } }
