单片机C语言程序1

0.5秒自加一，并输出；#include <reg51.h>#include <absacc.h>sbit LED_BIT =P1^6;void day1s(void){int x,y;for(x=0;x<=130;x++)for(y=0;y<=1000;y++); }void main(){while(1){int i=1,sum=0;LED_BIT =0;for(i=0;i<255;){sum=sum+i;i++;day1s();P0=sum;}}}可调速的单灯左移：#include "reg51.h"#include "absacc.h"#define zuoyi(x,y) x=x<<y int delay(int a){int b;for(;a>0;a--)for(b=1000;b>0;b--); }sbit LED_BIT = P1^6; void main(){int t=55,q=1;LED_BIT = 0;P0=0x00;while(1){if(P0){zuoyi(P0,q);delay(t);}elseP0=0x01;}}累加灯位左移：#include "reg51.h"#include "absacc.h"#define zuoyi(x) x=x<<1 void delay(){int a,b;for(a=65;a>0;a--)for(b=1000;b>0;b--);}sbit LED_BIT = P1^6;void main(){int i=0;LED_BIT = 0;P0=0x0;while(1){if(P0){zuoyi(P0);delay();i++;}else if(P0==0x0&&i==0){P0=0X1;delay();}else if(i==8){P0=0X3;delay();}else if(i==16){P0=0X7;delay();}else if(i==24){P0=0XF;delay();}else if(i==32){P0=0X1F;delay();}else if(i==40){P0=0X3F;delay();}else if(i==48){P0=0X7F;delay();}else if(i==56){P0=0XFF;delay();}else if(i==64){P0=0X0;i=0;}}}中断服务程序#include "reg51.h"#include "absacc.h"sbit BUZ_KEY=P3^3;sbit BUZ_BIT=P1^2;void delay10ms(){unsigned i,j;for(i=128;i>0;i--)for(j=10;j>0;j--);}void int1_srv(void) interrupt 1{unsigned i=0x0;delay10ms();if(BUZ_KEY==0){ while(BUZ_KEY==0);i=i^(1<<2);P1=i;}}void main(){EX1=1;ET1=1;EA=1;BUZ_BIT=0;while(1);}中断服务程序2#include "reg51.h"#include "absacc.h"sbit LED_BIT =P3^3;unsigned int x=1;unsigned int q=1000;void delay10ms(unsigned q){unsigned i,j;while(q--){for(i=128;i>0;i--)for(j=1;j>0;j--);}}void delay(){unsigned i,j;for(i=128;i>0;i--)for(j=10;j>0;j--);}void int1_srv(void) interrupt 2{delay();if(LED_BIT==0){ while(LED_BIT==0);x++;if(x<=3){q=q/10;}else if(x>3&&x<=5){q=q*10;}else{x=2;q=q/10;}}}void main(){EX1=1;ET1=1;EA=1;P2=0X00;while(1){if(P2){ P2=P2<<1;delay10ms(q);}else{P2=0x01;delay10ms(q);}}}测试数码数码管#include "reg51.h"#include "absacc.h"#define zuoyi(x) x=x<<1sbit temp1=P2^0;sbit temp2=P2^1;sbit temp3=P2^2;sbit temp4=P2^3;void delay500ms(){unsigned int i,j;for(i=131;i>0;i--)for(j=1000;j>0;j--);}void main(){temp1=1;temp2=0;temp3=0;temp4=0;P1=0X00;while(1){while(temp1==1&&temp2==0&&temp3==0&&temp4==0) {if(P1==0){P1=0X01;delay500ms();}zuoyi(P1);delay500ms();if(P1==0){break;}}temp1=0;temp2=1;temp3=0;temp4=0;while(temp1==0&&temp2==1&&temp3==0&&temp4==0) {if(P1==0){P1=0X01;delay500ms(); }zuoyi(P1);delay500ms();if(P1==0){break;}}temp1=0;temp2=0;temp3=1;temp4=0;while(temp1==0&&temp2==0&&temp3==1&&temp4==0) {if(P1==0){P1=0X01;delay500ms();}zuoyi(P1);delay500ms();if(P1==0){break;}}temp1=0;temp2=0;temp3=0;temp4=1;while(temp1==0&&temp2==0&&temp3==0&&temp4==1) {if(P1==0){P1=0X01;delay500ms();}zuoyi(P1);delay500ms();if(P1==0){break;}}temp1=1;temp2=0;temp3=0;temp4=0;P1=0X00;}}定时器0#include "reg51.h"#include "absacc.h"void main(){unsigned char shuzi[]={0xc0,//1100 0000 ,00xf9,//1111 1001 ,10xa4,//1010 0100 ,20xb0,//1011 0000 ,30x99,//1001 1001 ,40x92,//1001 0010 ,50x82,//1000 0010 ,60xf8,//1111 1000 ,70x80,//1000 0000 ,80x90,//1001 0000 ,9} ;unsigned int cnt=0,i=0;TMOD =0X01; //16位定时器模式TH0 =(65535 - 10000)>>8; //取初值高八位TL0 =(65535 - 10000) &0XFF;//取初值第八位TR0 =1;//启动定时器0while(1){P2 =0x0F;for(cnt=0;cnt<100;cnt++){while(TF0 == 0);TF0 = 0;TH0 =(65535 - 10000)>>8; //取初值高八位TL0 =(65535 - 10000) &0XFF;//取初值第八TR0 =1;}}}#include "reg51.h"#include "absacc.h"unsigned int cnt=0;void jishi_srv(void) interrupt 1{TH0 = (65535 - 10000)>>8; //取初值高八位TL0 = (65535 - 10000) &0XFF;//取初值第八位cnt++;if(cnt>100){cnt = 0;P1 =P1<<1;P2 =P2<<1;if(P1==0){P1=0x01;}if(P2==0X10){P2 =0X01;}}}void main(){P1 = 0X01;P2 = 0X01;TMOD =0X01; //16位定时器模式TH0 = (65535 - 10000)>>8; //取初值高八位TL0 = (65535 - 10000) &0XFF;//取初值第八位ET0 =1;EA =1;TR0 = 1;while(1);}#include "reg51.h"#include "absacc.h"unsigned int speed=10;unsigned int dir = 0;unsigned int cnt = 0;sbit TEMP_BIT= P3^2;void delay10ms(void){ unsigned i,j;for(i=128;i>0;i--)for(j=10;j>0;j--);}void zhong_srv(void) interrupt 0{delay10ms();if(TEMP_BIT== 0){ while(TEMP_BIT== 0);dir++;if(dir<=10){speed--;}else if(dir>10&&dir<=20){speed++;}if(dir>20){dir =0;}}}void jishi_srv(void) interrupt 1{TH0 = (65535 - 10000)>>8; //取初值高八位TL0 = (65535 - 10000) &0XFF;//取初值第八位cnt++;if(cnt >= speed*10){cnt=0;P1 =P1<<1;if(P1==0){P1=0x01;}}}void main(){P1 = 0X01;TMOD =0X01; //16位定时器模式TH0 = (65535 - 10000)>>8; //取初值高八位TL0 = (65535 - 10000) &0XFF;//取初值第八位ET0 =1;EX0 = 1;EA =1;TR0 = 1;IT0 = 1;while(1);}矩阵键盘实验#include "reg51.h"#include "absacc.h"void main(void){while(1){unsigned char key_h,key_v,key_temp,key_val;P2=0X00;key_val =0;for(key_h=4;key_h<8;key_h++){P2 = (1<<key_h); //对应行拉高电平P3 |= (1<<1);P3 &= ~(1<<1);P3 &=~(1<<2);P2 |= 0X0F;key_temp =P2&0X0F;P3 |=(1<<2);if(key_temp)//有按键按下{for(key_v=0;key_v<4;key_v++){if(key_temp &(1<<key_v))//第key_v为一{key_val =(key_h -4)*4 +(key_v) +1;break;}}}if(key_val)break;}P0 =key_val;}}矩阵键盘显示程序#include "reg51.h"#include "absacc.h"unsigned int cnt=0;unsigned char key_h,key_v,key_temp,key_val,last_key_val; unsigned char msg_buf[10]={0,1,2,3,4,5,6,7,8,9}; unsigned char code shuzi[]={0xc0,//1100 0000 ,00xf9,//1111 1001 ,10xa4,//1010 0100 ,20xb0,//1011 0000 ,30x99,//1001 1001 ,40x92,//1001 0010 ,50x82,//1000 0010 ,60xf8,//1111 1000 ,70x80,//1000 0000 ,80x90,//1001 0000 ,9} ; //存储在FLASH 区中void jishi_srv(void) interrupt 1{P2=0X00;TH0 = (65535 - 4000)>>8; //取初值高八位TL0 = (65535 - 4000) &0XFF;//取初值第八位P1=P1^0X03;if(P1==0X01){P1|=(1<<7);P0 =shuzi[msg_buf[0]] ;P1&=~(1<<7);}else{P1|=(1<<7);P0 =shuzi[msg_buf[1]] ;P1&=~(1<<7);}key_val =0;for(key_h=4;key_h<8;key_h++){P2 = (1<<key_h); //对应行拉高电平P3 |= (1<<1);P3 &= ~(1<<1);P3 &=~(1<<2);P2 |= 0X0F;key_temp =P2&0X0F;P3 |=(1<<2);if(key_temp)//有按键按下{for(key_v=0;key_v<4;key_v++){if(key_temp &(1<<key_v))//第key_v为一{key_val =(key_h -4)*4 +(key_v) +1;break;}}}if(key_val)break;}if(last_key_val!=key_val){last_key_val = key_val;}else{if(last_key_val){msg_buf[0] = key_val %10;msg_buf[1] = (key_val /10)%10;}}}void main(){P1 = 0X01;TMOD =0X01; //16位定时器模式TH0 = (65535 - 4000)>>8; //取初值高八位TL0 = (65535 - 4000) &0XFF;//取初值第八位ET0 =1;EA =1;TR0 = 1;P1 =0x01;while(1);}。