单片机程序源代码.docx

1、单片机程序源代码第二章任务一：闪烁广告灯的设计利用89c51单片机的端口控制两个LED（D0和D1），编写程序，实现两个LED互闪。 #include #define uint unsigned int #define uchar unsigned char sbit LED1=P00; sbit LED2=P01; void delayms(uint ms) uint i; while(ms-) for(i=0;iD3-D4-D5 -D6-D7 ，然后再点亮D7-D6-D5-D4 -D3-D2-D1-D0，重复循环。#include#include #define uint unsigned

2、 int#define uchar unsigned charuint i;uchar temp;uint a8=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;void delayms(uint ms) while(ms-) uint j; for(j=0;j120;j+); void main() while(1) P0=0xfe; while(P0!=0x7f) /P1=temp; /delayms(500); P0=_crol_(P0,1); delayms(250); temp=0x7f; while(P0!=0xfe) P0=temp; delaym

3、s(500); temp=_cror_(temp,1); 任务三：拉幕式与闭幕式广告灯的设计利用89c51单片机的P0端口实现8个LED D0D7的拉幕式与闭幕式广告灯设计。拉幕式： 开始D0D7全灭，延时片刻后首先D3和D4亮，其次是 D2和D5亮，再是D1和D6亮，最后是D0和D7亮。闭幕式：开始D0D7全亮，延时片刻后首先D0和D7灭，其次是 D1和D6灭，再是D2和D5灭，最后是D3和D4灭。#include#define uint unsigned int#define uchar unsigned charuchar code table=0xe7,0xc3,0x81,0x00;v

4、oid delay(uint x) uint i,j; for(i=x;i0;i-) for(j=120;j0;j-);void main() uint i; while(1) P1=0xff; delay(500); for(i=0;i0;i-) P1=tablei-1; delay(500); 任务四：复杂广告灯的设计利用89c51单片机的端口实现8个LED（D0D7）复杂广告灯的控制，要求显示规律为：正向流水-反向流水-隔灯闪烁3次-高四盏、低四盏闪烁2次-隔两盏闪烁3次，再重复循环。 #include #define uint unsigned int #include void de

5、layms(uint ms) uint i; while(ms-) for(i=0;i110;i+); void main() uint i,j,xx2=0xaa,0xff,yy2=0xf0,0x0f,zz2=0xb6,0xff; unsigned char aa; while(1) aa=0xfe; for(i=0;i7;i+) P0=aa; aa=_crol_(aa,1); delayms(500); for(i=0;i8;i+) P0=aa; aa=_cror_(aa,1); delayms(500); for(i=0;i3;i+) for(j=0;j2;j+) P0=xxj; dela

6、yms(500); for(i=0;i2;i+) for(j=0;j2;j+) P0=yyj ; delayms(500); for(i=0;i3;i+) for(j=0;j2;j+) P0=zzj ; delayms(500); 任务五：单个LED数码管显示设计使用89c51的P0口作为输出口，外接LED数码管，编写程序，使数码管循环显示从09的加1计数。#include #define uint unsigned int #define uchar unsigned char uchar table10= 0XC0,0XF9,0XA4,0XB0, 0X99,0X92,0X82,0XF8,

7、0X80,0X90;uint key=0;void int_int() EA=1; IT0=1; EX0=1;void count_num() interrupt 0 if(key=9)key=0; else key+;void main() int_int(); while(1) P0=tablekey; 任务六：多个LED数码管显示设计使用单片机P0和P2口作为输出口，外接一个8位LED数码管，编写程序，使数码管显示“872AF635”。#include#include#define uint unsigned int#define uchar unsigned chardelay(ms)

8、 while(ms-) int i; for(i=0;i110;i+); main() uchar a16=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e; uchar b8=0x08,0x07,0x02,0x0a,0x0f,0x06,0x03,0x05,j; uint i; while(1) j=0x01; for(i=0;i8;i+) P2=j; P0=abi; j=_crol_(j,1); delay(3); 任务七：查询式按键设计将8个按键从18进行编号，如果其中一个键被按下

9、，则在LED数码管上显示相应的键值。#include#define uint unsigned int#define uchar unsigned charmain() uchar a16=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e; P0=0xff; while(P0!=0xff) switch(P0) case 0xfe: P2=a1; break; case 0xfd: P2=a2; break; case 0xfb: P2=a3; break; case 0xf7: P2

10、=a4; break; case 0xef: P2=a5; break; case 0xdf: P2=a6; break; case 0xbf: P2=a7; break; case 0x7f: P2=a8; 任务八：LED数码管显示矩阵键盘按键的设计设计一个4*4的矩阵键盘，以P1.0P1.3作为行线，以P1.4P1.7作为列线。要求：未按下按键时，LED数码管显示“-”，按下按键时，在数码管上显示相应的键值。#include#define uchar unsigned char#define uint unsigned intuchar table17=0xbf,0xc0,0xf9,0xa

11、4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;uint num=0;void delay(uint x) uchar i,j;for(i=x;i0;i-) for(j=120;j0;j-);keyscan() uint temp; temp=P2; temp&=0x0f; if(temp=0x0e) P2=0xf0; temp=P2; temp&=0xf0; switch(temp) case 0xe0:num=1;break; case 0xd0:num=2;break; case 0xb0:num=3;

12、break; case 0x70:num=4; if(temp=0x0d) P2=0xf0; temp=P2; temp&=0xf0; switch(temp) case 0xe0:num=5;break; case 0xd0:num=6;break; case 0xb0:num=7;break; case 0x70:num=8; if(temp=0x0b) P2=0xf0; temp=P2; temp&=0xf0; switch(temp) case 0xe0:num=9;break; case 0xd0:num=10;break; case 0xb0:num=11;break; case

13、0x70:num=12; if(temp=0x07) P2=0xf0; temp=P2; temp&=0xf0; switch(temp) case 0xe0:num=13;break; case 0xd0:num=14;break; case 0xb0:num=15;break; case 0x70:num=16; return num;void display(uint num) if(num=0) P0=0xbf; P0=tablenum ;main() uint temp; while(1) P2=0x0f; temp=P2; if(temp!=0x0f) keyscan(); dis

14、play(num); （2）#include#define uchar unsigned char#define uint unsigned intsbit LED1=P20;sbit LED2=P21;uchar num;uchar code LED_code= 0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;/数码管字形码编码void delay(uint x) uchar i,j; for(i=x;i0;i-) for(j=120;j0;j-);/延时函数void disp

15、lay(uchar num) P0=LED_codenum;/数码管显示函数void keyscan()/键盘扫描函数 uchar temp;P1=0xfe;/key1-key4第一行按下 temp=P1; temp&=0xf0; if(temp!=0xf0) delay(10);/消除抖动 temp=P1; temp&=0xf0; if(temp!=0xf0) temp=P1; switch(temp) case 0xee: num=1; break; case 0xde: num=2; break; case 0xbe: num=3; break; case 0x7e: num=4; br

16、eak; while(temp!=0xf0)/等待按键释放 temp=P1; temp&=0xf0; P1=0xfd;/key5-key8第二行按下 temp=P1; temp&=0xf0; if(temp!=0xf0) delay(10);/消除抖动 temp=P1; temp&=0xf0; if(temp!=0xf0) temp=P1; switch(temp) case 0xed: num=5; break; case 0xdd: num=6; break; case 0xbd: num=7; break; case 0x7d: num=8; break; while(temp!=0xf

17、0)/等待按键释放 temp=P1; temp&=0xf0; P1=0xfb;/key9-key12第三行按下 temp=P1; temp&=0xf0; if(temp!=0xf0) delay(10);/消除抖动 temp=P1; temp&=0xf0; if(temp!=0xf0) temp=P1; switch(temp) case 0xeb: num=9; break; case 0xdb: num=10; break; case 0xbb: num=11; break; case 0x7b: num=12; break; while(temp!=0xf0)/等待按键释放 temp=P

18、1; temp&=0xf0; P1=0xf7;/key13-key16第四行按下 temp=P1; temp&=0xf0; if(temp!=0xf0) delay(10);/消除抖动 temp=P1; temp&=0xf0; if(temp!=0xf0) temp=P1; switch(temp) case 0xe7: num=13; break; case 0xd7: num=14; break; case 0xb7: num=15; break; case 0x77: num=16; break; while(temp!=0xf0)/等待按键释放 temp=P1; temp&=0xf0;

19、 void main() while(1) keyscan(); if(num=0) P0=0xbf; else display(num-1); 任务九：简单拨号键盘的设计使用4*4的矩阵式键盘及8位共阳极LED数码管设计一个简单拨号键盘，要求在初始状态时，8位数码管均显示“-”，每按下一个后，原8位LED数码管显示的内容向左移动1位。#include#include#define uint unsigned int #define uchar unsigned charuchar keycount=0,num;uchar code LED1_code= 0xc0,0xf9,0xa4,0xb0

20、, 0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;/数码管字形码编码uchar LED2_duan8=0xbf,0xbf,0xbf,0xbf,0xbf,0xbf,0xbf,0xbf;/8段共阳数码管编码uchar LED2_wei8= 0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01;void delay(uint x) uchar i,j;for(i=x;i0;i-) for(j=120;j0;j-);void display() uchar i; /P2=0x80; for(i=0;i

21、8;i+) P2=LED2_weii; P0=LED2_duan7-i; delay(1); void keyscan() uchar temp; P3=0xfe; temp=P3; temp&=0xf0; if(temp!=0xf0) delay(10); temp=P3; temp&=0xf0; if(temp!=0xf0) temp=P3; switch(temp) case 0xee:keycount+;num=0;break; case 0xde:keycount+;num=1;break; case 0xbe:keycount+;num=2;break; case 0x7e:key

22、count+;num=3;break; while(temp!=0xf0) temp=P3; temp&=0xf0; P3=0xfd; temp=P3; temp&=0xf0; if(temp!=0xf0) delay(10); temp=P3; temp&=0xf0; if(temp!=0xf0) temp=P3; switch(temp) case 0xed:keycount+;num=4;break; case 0xdd:keycount+;num=5;break; case 0xbd:keycount+;num=6;break; case 0x7d:keycount+;num=7;br

23、eak; while(temp!=0xf0) temp=P3; temp&=0xf0; P3=0xfb; temp=P3; temp&=0xf0; if(temp!=0xf0) delay(10); temp=P3; temp&=0xf0; if(temp!=0xf0) temp=P3; switch(temp) case 0xeb:keycount+;num=8;break; case 0xdb:keycount+;num=9;break; case 0xbb:keycount+;num=10;break; case 0x7b:keycount+;num=11;break; while(te

24、mp!=0xf0) temp=P3; temp&=0xf0; P3=0xf7; temp=P3; temp&=0xf0; if(temp!=0xf0) delay(10); temp=P3; temp&=0xf0; if(temp!=0xf0) temp=P3; switch(temp) case 0xe7:keycount+;num=12;break; case 0xd7:keycount+;num=13;break; case 0xb7:keycount+;num=14;break; case 0x77:keycount+;num=15;break; while(temp!=0xf0) temp=P3; temp&=0xf0; void main() uchar i; while(1) display(); keyscan(); if(keycount!=0) for(i=0;i7;i+) LED2_duani=LED2_duani+1; LED2_duan7=LED1_codenum; keycount=0; 第五章