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- #include <reg52.h>
- #include "XPT2046.h"
- #define uchar unsigned char
- #define uint unsigned int
- uchar a;
- sbit lcden=P2^7; //LDC1602读写使能
- sbit rs=P2^6; //LCD1602寄存器
- sbit rw=P2^5; //LCD1602读写
- sbit s1=P3^0; //时钟暂停
- sbit s2=P3^1; //时间减
- sbit s3=P3^3; //时间加
- sbit k3=P3^2; //中断开关,按下后跳到电压表
- sbit LSA=P2^2; //三八译码器A口
- sbit LSB=P2^3; //三八译码器B口
- sbit LSC=P2^4; //三八译码器C口
- int disp[4];
- int code smgduan[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //数码管0到9
- int code xiaoshu[10]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef};
- uchar count,s1num;
- char miao,shi,fen;
- uchar code table[]=" 2019-1-11 TIME ";
- uchar code table1[]=" 00:00:00";
- uchar code table2[]="student id:1840740128";
- void delay(uint z) //延时
- {
- uint x,y;
- for(x=z;x>0;x--)
- for(y=110;y>0;y--);
- }
- void write_com(uchar com)
- {
- rs=0;
- lcden=0;
- P0=com;
- delay(5);
- lcden=1;
- delay(5);
- lcden=0;
- }
- void write_date(uchar date)
- {
- rs=1;
- lcden=0;
- P0=date;
- delay(5);
- lcden=1;
- delay(5);
- lcden=0;
- }
- void init()
- {
- uchar num;
- lcden=0;
- rw=0;
- write_com(0x38);
- write_com(0x0c);
- write_com(0x06);
- write_com(0x01);
- write_com(0x80);
- for(num=0;num<15;num++)
- {
- write_date(table[num]);
- delay(5);
- }
- write_com(0x80+0x40);
- for(num=0;num<12;num++)
- {
- write_date(table1[num]);
- delay(5);
- }
- TMOD=0x01;
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- EA=1;
- ET0=1;
- TR0=1;
- }
- void write_sfm(uchar add,uchar date)
- {
- uchar shi,ge;
- shi=date/10;
- ge=date%10;
- write_com(0x80+0x40+add);
- write_date(0x30+shi);
- write_date(0x30+ge);
- }
- void keyscan()
- {
- if(s1==0)
- {
- delay(5);
- if(s1==0)
- { s1num++;
- while(!s1);
- if(s1num==1)
- {
- TR0=0;
- write_com(0x80+0x40+10);
- write_com(0x0f);
- }
- }
- if(s1num==2)
- {
- write_com(0x80+0x40+7);
- }
- if(s1num==3)
- {
- write_com(0x80+0x40+4);
- }
- if(s1num==4)
- {
- s1num=0;
- write_com(0x0c);
- TR0=1;
- }
-
- }
- if(s1num!=0)
- {
- if(s2==0)
- {
- delay(5);
- if(s2==0)
- {
- while(!s2);
- if(s1num==1)
- {
- miao++;
- if(miao==60)
- miao=0;
- write_sfm(10,miao);
- write_com(0x80+0x40+10);
-
-
- }
- if(s1num==2)
- {
- fen++;
- if(fen==60)
- fen=0;
- write_sfm(7,fen);
- write_com(0x80+0x40+7);
- }
- if(s1num==3)
- {
- shi++;
- if(shi==24)
- shi=0;
- write_sfm(4,shi);
- write_com(0x80+0x40+4);
- }
- }
- }
- if(s3==0)
- {
- delay(5);
- if(s3==0)
- {
- while(!s3);
- if(s1num==1)
- {
- miao--;
- if(miao==-1)
- miao=59;
- write_sfm(10,miao);
- write_com(0x80+0x40+10);
- }
- if(s1num==2)
- {
- fen--;
- if(fen==-1)
- fen=59;
- write_sfm(7,fen);
- write_com(0x80+0x40+7);
- }
- if(s1num==3)
- {
- shi--;
- if(shi==-1)
- shi=23;
- write_sfm(4,shi);
- write_com(0x80+0x40+4);
- }
- }
- }
- }
- }
- void timer0() interrupt 1 //定时器中断
- {
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- count++;
- if(count==18)
- {
- count=0;
- miao++;
- if(miao==60)
- {
- miao=0;
- fen++;
- if(fen==60)
- {
- fen=0;
- shi++;
- if(shi==24)
- {
- shi=0;
- }
- write_sfm(4,shi);
- }
- write_sfm(7,fen);
- }
- write_sfm(10,miao);
-
- }
- }
- void datapros()
- {
- int temp;
- static int i;
- if(i==50)
- {
- i=0;
- temp = Read_AD_Data(0xE4); // AIN3 外部输入
- }
- i++;
- disp[3]=xiaoshu[temp/1000];//千位
- disp[2]=smgduan[temp%1000/100];//百位
- disp[1]=smgduan[temp%1000%100/10];//个位
- disp[0]=smgduan[temp%1000%100%10];
- }
- //数码管显示函数
- void DigDisplay()
- {
- int i;
- for(i=0;i<4;i++)
- {
- switch(i) //位选,选择点亮的数码管,
- {
- case(0):
- LSA=0;LSB=0;LSC=0; break;//显示第0位
- case(1):
- LSA=1;LSB=0;LSC=0; break;//显示第1位
- case(2):
- LSA=0;LSB=1;LSC=0; break;//显示第2位
- case(3):
- LSA=1;LSB=1;LSC=0; break;//显示第3位
- }
- P0=disp[i];//发送数据
- delay(1); //间隔一段时间扫描
- P0=0x00;//消隐
- }
- }
- void dianyabiao()
- {
- datapros(); //数据处理函数
- DigDisplay();//数码管显示函数
- }
- void shumaguan()
- {
-
- }
- void main()
- {
- a=0;
- IT0=0; //中断触发方式为低电平触发,IT0=1则为下边沿触发
- EX0=1; //打开外部中断0
- EA=1; //打开中断总开关
- init();
- while(1)
- {
- switch(a%2)
- {
- case 1:dianyabiao();break;
- case 0:keyscan();break;
- }
- }
- }
- void INTERR(void) interrupt 0
- {
- if(k3==0)
- {
- while(1)
- {
- delay(100);
- if(k3==1)
- {
- break;
- }
- }
- a++;
- delay(300);
- }
- }
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改AD.zip
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