单片机整理 文档.doc

利用独立按键实现对LED进行控制，每当按下一次键时， LED显示方式变化左移一次，用以显示按键控制的结果。#include #include unsigned char count;void delay10ms(void)unsigned char i,j;for(i=250;i0;i-)for(j=248;j0;j-);void main(void) count=0xfe; while(1) if(P0_3=0) delay10ms(); if(P0_3=0) P1=count; count=_crol_(count,1); while(P0_3=0); 2、汇编语言程序ORG 00h mov a,#0fehREL: JB P0.3,REL ;判断SP1是否按下 LCALL DELAY ;若按下，则延时10ms左右 JB P0.3,REL ;再判断SP1是否真得按下 mov p1,a rl a JNB P0.3,$ ;等待SP1释放SJMP rel ;继续对K1按键扫描DELAY: MOV R6,#20 ;延时10ms子程序L1: MOV R7,#248 DJNZ R7,$ DJNZ R6,L1 RET END利用独立按键实现对数码管的控制，每当按下一次键时， 数码管显示按键次数0-9。、C语言程序：#include unsigned char count;unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;void delay10ms(void)unsigned char i,j;for(i=250;i0;i-)for(j=248;j0;j-);void main(void)while(1) if(P0_3=0) delay10ms(); if(P0_3=0) count+; if(count=10) count=0; P1=tablecount; while(P0_3=0); 2、汇编程序ORG 00hSTART: MOV R1,#00H ;初始化R1为0， REL: JB P0.3,REL ;判断SP1是否按下 LCALL DELAY ;若按下，则延时10ms左右 JB P0.3,REL ;再判断SP1是否真得按下 MOV A,R1 MOV DPTR,#TABLE MOVC A,A+DPTR MOV P1,A INC R1JNB P0.3,$ ;等待SP1释放CJNE R1,#10,RELSJMP START ;继续对K1按键扫描DELAY: MOV R6,#20 ;延时10ms子程序L1: MOV R7,#248 DJNZ R7,$ DJNZ R6,L1 RETTABLE: DB 3FH,06H,5BH,4FH,66H,6DH DB 7DH,07H,7FH,6FH END本任务目标是用矩阵键盘控制数码管显示。 1602液晶显示C语言程序#include #define uchar unsigned char#define uint unsigned int sbit lcden=P22;sbit lcdrs=P20;sbit lcdrw=P21;uchar num;uchar code table=I LIKE MCU!;uchar code table1=;void delay(uint z) uint x,y; for (x=z;x0;x-) for(y=110;y0;y-); void write_com(uchar com) lcdrs=0; P1=com;delay(5);lcden=1;delay(5);lcden=0; void init() lcden=0; write_com(0x38); write_com(0x0c); write_com(0x0f); write_com(0x06); write_com(0x01); write_com(0x80); void write_data(uchar date) lcdrs=1; P1=date; delay(5); lcden=1; delay(5); lcden=0; void main() lcdrw=0; init (); for(num=0;num11;num+) write_data (tablenum); write_com(0x80+0x40);for(num=0;num15;num+) write_data (table1num); delay(20);while(1);如何用1602显示日期和时间C语言程序：#include /51头文件#define uchar unsigned char#define uint unsigned int /变量宏定义uchar count,s1num,shi2=0,fen2=0,shi3=10,fen3=10;/全局变量uchar shi,fen,miao,shi1,fen1,led_1,led_2;/时间变量sbit rs = P20;/数据，命令选择端（H/L） sbit rw = P21;/读，写选择端（H/L）sbit e = P22;/使能信号 /*uchar code table=2010-10-28 DATE;uchar code table1=00:00:00 TIME;/数据字符表void delay(uint z)/延时 uint x,y; for(x=z;x0;x-) for(y=110;y0;y-) ; void write_com(uchar com)/写液晶指令 rs=0; e=0; P1=com; delay(5); e=1; delay(5); e=0; void write_date(uchar date)/送液晶数据 rs=1; e=0; P1=date; delay(5); e=1; delay(5); e=0; void init() /初始化液晶设定定时器初值 uchar num; rs=0; rw=0; e=0;/锁存关闭 write_com(0x38); delay(5); write_com(0x0c); delay(5); write_com(0x06); delay(5); write_com(0x01); write_com(0x80);/第一行开始写 for(num=0;num15;num+) write_date(tablenum); delay(20); write_com(0x80+0x40);/第二行前一部分，也就是时间开始写 for(num=0;num13;num+) write_date(table1num); delay(20); TMOD=0x01;/定时器0的方式1 TH0=(65536-50000)/256;/求模 TL0=(65536-50000)%256;/取余 EA=1;/开总中断 ET0=1;/开定时器中断 TR0=1;/启动定时器 void write_sfm(uchar add, uchar date)/地址数据变量 uchar shi,ge; shi=date/10; ge=date%10; write_com(0x80+0x40+add); write_date(0x30+shi); write_date(0x30+ge); void main()/主函数 init(); while(1); void timer0() interrupt 1 /定时器0中断服程序 TH0=(65536-50000)/256;/求模 TL0=(65536-50000)%256;/求佘 count+;/变量 if(count=20)/此处为时间基准调节，20为走一秒 count=0; miao+; if(miao=60) miao=0; fen+; if(fen=60) fen=0; shi+; if(shi=24) shi=0; write_sfm(0,shi);/时针位置 write_sfm(3,fen);/分针位置 write_sfm(6,miao);/秒针位置 12864液晶显示 用中文12864显示“重庆文理学院”C语言程序：#include#define uint unsigned int#define uchar unsigned charuchar i,j, num=0;sbit lcdrs = P2 0 ; /代码/数据，低为代码，高为数据sbit lcden = P2 2 ; /使能信号sbit lcdrw = P2 1 ; sbit FSB=P2 3 ;uchar code hanz=重庆文理学院;void delay(uint z) /延时函数 uint x,y; for(x=z;x0;x-) for(y=100;y0;y-); void write_com(uchar com)/写指令函数 delay(10); lcdrs=0; P1=com; delay(10); lcden=1; delay(10); lcden=0; void write_data(uchar date)/写数据函数 delay(10); lcdrs=1; P1=date; delay(10); lcden=1; delay(10); lcden=0;void init()/初始化函数 write_com(0x38); write_com(0x08); write_com(0x06); write_com(0x0f);void main()FSB=1;lcdrw=0; init(); write_com(0x80);/第一行第一例开始显示汉字 for(i=0;i6;i+)/写入6个汉字 for(j=0;j2;j+)/一个汉字要进行2次写数据的操作,要写字符的话就只需要一次写数据的操作 write_data(hanznum); num+; while(1);要实现09的显示C语言程序：#include #define uchar unsigned charsbit a=P05;sbit b=P06;sbit c=P07;unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char dispcount;void delay02s(void) unsigned char i,j,k;for(i=10;i0;i-)for(j=200;j0;j-)for(k=248;k0;k-);void main(void) while(1) for(dispcount=0;dispcount10;dispcount+) a=0; b=0; c=0; P1=tabledispcount; delay02s(); 汇编语言程序：org 00haa:mov r0,#00hmov dptr,#tabclr p0.5clr p0.6clr p0.7sd:mov a,r0movc a,a+dptrlcall delaymov p1,ainc r0cjne r0,#10,sdsjmp aadelay:mov r6,#5SS:MOV R7, #200LOOP:MOV R5, #249DJNZ R5, $DJNZ R7,LOOPDJNZ R6,SSrettab:db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh end编程实现数码管的0-7数字显示。C语言程序：#include #define uchar unsigned charsbit a=P05;sbit b=P06;sbit c=P07;unsigned char code tabledu=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char code tablewe=0x1f,0x3f,0x5f,0x7f,0x9f,0xbf,0xdf,0xff;unsigned char dispcount;void delay02s(void) unsigned char i,j,k;for(i=10;i0;i-)for(j=200;j0;j-)for(k=248;k0;k-);void main(void) while(1) for(dispcount=0;dispcount8;dispcount+) P0=tablewedispcount; P1=tabledudispcount; delay02s(); 汇编语言：org 00haa:mov r0,#00hsd:mov dptr,#tab2mov a,r0movc a,a+dptrmov p0,amov a,r0mov dptr,#tab1movc a,a+dptrmov p1,alcall delayinc r0cjne r0,#8,sdsjmp aadelay:mov r6,#5SS:MOV R7,#200LOOP:MOV R5,#249DJNZ R5, $DJNZ R7,LOOPDJNZ R6,SSrettab1:db 3fh,06h,5bh,4fh,66h,6dh,7dh,07htab2:db 1fh,3fh,5fh,7fh,9fh,0bfh,0dfh,0ffhend本任务是实现0999的加1S计数显示。#include #define uchar unsigned charsbit a=P05;sbit b=P06;sbit c=P07;unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char dispcount,bai,shi,ge;unsigned int temp,aa;void display();void delay02s(void) unsigned char i,j,k;for(i=1;i0;i-)for(j=100;j0;j-)for(k=200;k0;k-);void delay05s(void) unsigned char s,m,t; for(s=2;s0;s-) for(m=200;m0;m-) for(t=250;t0;t-) ; void main(void) temp=0; while(1) delay05s(); delay05s(); temp+; display(); void display() if(temp=999) temp=0; bai=temp/100; shi=temp%100/10; ge=temp%10; a=0; b=1; c=0; P1=tablebai; delay02s(); a=1; b=0; c=0; P1=tableshi; delay02s(); a=0; b=0; c=0; P1=tablege; delay02s(); C语言程序（中断）#include #define uchar unsigned charsbit a=P05;sbit b=P06;sbit c=P07;unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char dispcount,bai,shi,ge;unsigned int temp,aa;void init();void delay02s(void) unsigned char i,j,k;for(i=10;i0;i-)for(j=20;j0;j-)for(k=24;k0;k-);void main(void) void init(); temp=0; while(1) aa+; if(aa=20) aa=0; temp+; if(temp=999) temp=0; bai=temp/100; shi=temp%100/10; ge=temp%10; a=0; b=1; c=0; P1=tablebai; delay02s(); a=1; b=0; c=0; P1=tableshi; delay02s(); a=0; b=0; c=0; P1=tablege; delay02s(); void init() TMOD=0X01; TH0=65536-50000/256; TL0=65536-50000%256; EA=1; ET0=1; TR0=1; void timer0() interrupt 1 TH0=65536-50000/256; TL0=65536-50000%256;1Hz的闪烁程序设计C语言程序：#include sbit light=P10;void delay05s(void) unsigned char i,j,k; for(i=5;i0;i-) for(j=200;j0;j-) for(k=250;k0;k-) ; void main(void) while(1) light=0; delay05s(); light=1; delay05s(); 汇编语言程序：org 00hLS:setb p1.0Lcall delayclr P1.0Lcall delaysjmp lSdelay:mov R6,#5SS:MOV R7, #200loop:mov R1,#245SD:DJNZ R1, SDDJNZ R7,loopDJNZ R6,SSretend跑马灯C语言程序：#include reg51.h#include intrins.hvoid delay05s(void) unsigned char i,j,k; for(i=5;i0;i-) for(j=200;j0;j-) for(k=250;k0;k-) ; void main() unsigned char OutData=0xfe;for(;)P1=OutData;OutData=_crol_(OutData,1); /循环左移delay05s(); 汇编语言ORG 00HSTART: MOV A,#0FEHLOOP: MOV P1,A LCALL DELAY RL A SJMP loopdelay:mov R6,#5SS:MOV R7, #200lp:mov R1,#245SD:DJNZ R1, SDDJNZ R7,lpDJNZ R6,SSRETEND8个LED指示灯从左到右，从右到左依次循环点亮。1、#include reg51.h#include intrins.h#define uchar unsigned char#define uint unsigned intuchar j,k;void mDelay(unsigned int Delay) unsigned int i;for(;Delay0;Delay-) for(i=0;i124;i+);void main() unsigned char OutData=0xfe; while(1) for(j=0;j7;j+)P1=OutData; OutData=_crol_(OutData,1); /循环左移 mDelay(1000); /*延时1000 毫秒*/ for(k=0;k0;Delay-) for(i=0;i0;l-) P1=OutData; mDelay(1000); P1=0xff; mDelay(1000); void main() OutData=0xfe; while(1) for(j=0;j7;j+) OutData=_crol_(OutData,1); FLASH(); for(k=0;k7;k+) OutData=_cror_(OutData,1); FLASH(); 0999显示#include #define uchar unsigned charsbit a=P05;sbit b=P06;sbit c=P07;unsigned char codetable=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char dispcount,bai,shi,ge;unsigned int temp,aa=1;void init();void delay02s(void) unsigned char i,j,k;for(i=5;i0;i-)for(j=20;j0;j-)for(k=24;k0;k-);void main() init(); temp=0; while(1) aa+; if(aa=20) aa=0; temp+; if(temp=999) temp=0; bai=temp/100; shi=temp%100/10; ge=temp%10; a=0; b=1; c=0; P1=tablebai; delay02s(); a=1; b=0; c=0; P1=tableshi; delay02s(); a=0; b=0; c=0; P1=tablege; delay02s(); void init() TMOD=0X01; TH0=65536-50000/256; TL0=65536-50000%256; EA=1; ET0=1; TR0=1; void timer0() interrupt 1 TH0=65536-50000/256; TL0=65536-50000%256;数字钟sbit key2=P02;sbit key1=P01;sbit key0=P00;uchar code tab1=0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7d,0x07,0x7f,0x6f,0x00,0x40,0x80;uchar code tab2=0x1f,0x3f,0x5f,0x7f,0x9f,0xbf,0xdf,0xff;uchar sec, min, hour, count; void delay(uint z) uint x,y; for(x=z;x0;x-) for(y=110;y0;y-);void init() TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1;void timer0() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256; count+; if(count=20) count=0;sec+; if(sec=60) sec=0;min+; if(min=60) min=0;hour+; if(hour=24) hour=0; void display() uchar s ; for(s=0;s=10;s+) P1=tab1hour/10; P0=tab27; delay(2); P1=tab1hour%10; P0=tab26; delay(2); P1=tab111; P0=tab25; delay(2); P1=tab1min/10; P0=tab24; delay(2); P1=tab1min%10; P0=tab23; delay(2); P1=tab111; P0=tab22; delay(2); P1=tab1sec/10; P0=tab21; delay(2); P1=tab1sec%10; P0=tab20; delay(