万年历

实验四：电子时钟设计一、 实验目的1、 熟悉Proteus 仿真软件，了解软件的结构组成和功能；2、 掌握单片机原理图的绘制方法；3、 了解汇编语言的程序设计方法；4、 熟悉Keil u Vision4编译软件；二、 实验要求1、 设计一个电子时钟，并且能够实现分秒实现的和调节。

2、 设计出硬件电路。

3、 设计出软件编程方法，并写出程序。

4、 用汇编语言或C 语言实现程序设计。

三、 实验电路与程序1、 连接图D 714D 613D 512D 411D 310D 29D 18D 07E 6R W 5R S 4V S S 1V D D 2V E E3LCD1LM016LXTAL218XTAL119ALE 30EA 31PSEN29RST9P0.0/AD039P0.1/AD138P0.2/AD237P0.3/AD336P0.4/AD435P0.5/AD534P0.6/AD633P0.7/AD732P1.0/T21P1.1/T2EX 2P1.2/ECI 3P1.3/CEX04P1.4/CEX15P1.5/CEX26P1.6/CEX37P1.7/CEX48P3.0/RXD 10P3.1/TXD 11P3.2/INT012P3.3/INT113P3.4/T014P3.7/RD 17P3.6/WR 16P3.5/T115P2.7/A1528P2.0/A821P2.1/A922P2.2/A1023P2.3/A1124P2.4/A1225P2.5/A1326P2.6/A1427U1AT89C51RD2X111.0592MHzC122pFC222pFR11.0kRST5SCLK 7I/O 6X12X23VCC18VCC21U2DS1302X232.768KHz B13VC40.1uFR210kRV110K234567891RP110K2、 结果图D 714D 613D 512D 411D 310D 29D 18D 07E 6R W 5R S 4V S S 1V D D 2V E E3LCD1LM016LXTAL218XTAL119ALE 30EA 31PSEN29RST9P0.0/AD039P0.1/AD138P0.2/AD237P0.3/AD336P0.4/AD435P0.5/AD534P0.6/AD633P0.7/AD732P1.0/T21P1.1/T2EX 2P1.2/ECI 3P1.3/CEX04P1.4/CEX15P1.5/CEX26P1.6/CEX37P1.7/CEX48P3.0/RXD 10P3.1/TXD 11P3.2/INT012P3.3/INT113P3.4/T014P3.7/RD 17P3.6/WR 16P3.5/T115P2.7/A1528P2.0/A821P2.1/A922P2.2/A1023P2.3/A1124P2.4/A1225P2.5/A1326P2.6/A1427U1AT89C51RD2X111.0592MHzC122pFC222pFC310uFR11.0kRST5SCLK7I/O6X12X23VCC18VCC21U2DS1302X232.768KHz B13VC40.1uFR210kRV110K234567891RP110K3、 代码#include<reg52.h>#define uint unsigned int #define uchar unsigned charuchar a,miao,shi,fen,ri,yue,nian,week,flag,temp,key1n; #define yh 0x80 //第一行的初始位置 #define er 0x80+0x40 //第二行初始位置 //sbit cs1=P3^7; //sbit ledk=P2^5; //sbit dula=P2^6; //sbit wela=P2^7; sbit wr=P1^1; sbit rs=P1^0; sbit en=P2^5;sbit SCLK=P2^1; // 6 P1.1 sbit IO=P2^0; // 7 P1.0 sbit RST=P2^4; //时钟 5 P1.2 sbit ACC0=ACC^0; sbit ACC7=ACC^7; sbit key=P3^7;sbit key1=P3^0; //key1键为功能键sbit key2=P3^1; //key2为数字增大键sbit key3=P3^2; //key3为数字减小键uchar code tab1[]={"2015- - FRI"};uchar code tab2[]={" : : "};void delay(uint xms)//延时函数{uint x,y;for(x=xms;x>0;x--)for(y=110;y>0;y--);}/******************液晶写入************************/void write_1602com(uchar com)//液晶写入指令函数{rs=0;//置为写入命令P0=com;//送入数据delay(1);en=1;//拉高使能端delay(1);en=0;//完成高脉冲}void write_1602dat(uchar dat){rs=1;//置为写入数据P0=dat;//送入数据delay(1);en=1;delay(1);en=0;}/*********************over***********************//********************ds1302****************************/ void write_byte(uchar dat){ACC=dat;RST=1;for(a=8;a>0;a--){IO=ACC0;SCLK=0;SCLK=1;ACC=ACC>>1;}}uchar read_byte(){RST=1;for(a=8;a>0;a--){ACC7=IO;SCLK=1;SCLK=0;ACC=ACC>>1;}return (ACC);}void write_1302(uchar add,uchar dat) {RST=0;SCLK=0;RST=1;write_byte(add);write_byte(dat);SCLK=1;RST=0;}uchar read_1302(uchar add){uchar temp;RST=0;SCLK=0;RST=1;write_byte(add);temp=read_byte();SCLK=1;RST=0;return(temp);}uchar BCD_Decimal(uchar bcd){uchar Decimal;Decimal=bcd>>4;return(Decimal=Decimal*10+(bcd&=0x0F));}void ds1302_init(){RST=0;SCLK=0;write_1302(0x80,miao|0x00);//允许写}void write_sfm(uchar add,uchar dat)//写时分秒{uchar gw,sw;gw=dat%10;sw=dat/10;write_1602com(er+add);write_1602dat(0x30+sw);write_1602dat(0x30+gw);}void write_nyr(uchar add,uchar dat){uchar gw,sw;gw=dat%10;sw=dat/10;write_1602com(yh+add);write_1602dat(0x30+sw);write_1602dat(0x30+gw);}void write_week(uchar week)//写星期函数{write_1602com(yh+0x0d);switch(week){case 1:write_1602dat('M');//delay(5);write_1602dat('O');//delay(5);write_1602dat('N');break;case 2:write_1602dat('T');//delay(5);write_1602dat('U');//delay(5);write_1602dat('E');break;case 3:write_1602dat('W');//delay(5);write_1602dat('E');//delay(5);write_1602dat('D');break;case 4:write_1602dat('T');//delay(5);write_1602dat('H');//delay(5);write_1602dat('U');break;case 5:write_1602dat('F');//delay(5);write_1602dat('R');//delay(5);write_1602dat('I');break;case 6:write_1602dat('S');//delay(5);write_1602dat('T');//delay(5);write_1602dat('A');break;case 7:write_1602dat('S');//delay(5);write_1602dat('U');//delay(5);write_1602dat('N');break;}}void lcd_init()//液晶初始化函数{ wr=0;write_1602com(0x38);//设置液晶工作模式write_1602com(0x0c);//开显示不显示光标write_1602com(0x06);//整屏不移动，指针加一write_1602com(0x01);write_1602com(yh+2);//字符写入的位置for(a=0;a<14;a++){write_1602dat(tab1[a]);//delay(3);}write_1602com(er+4);for(a=0;a<8;a++){write_1602dat(tab2[a]);//delay(3);}}void keyscan(){key=0;if(key1==0)//key1为功能键{delay(5);if(key1==0){while(!key1);key1n++;if(key1n==9)key1n=1;switch(key1n){case 1: TR0=0;//关闭定时器//TR1=0;write_1602com(er+0x0b);//写入光标位置write_1602com(0x0f);//设置光标为闪烁temp=(miao)/10*16+(miao)%10;write_1302(0x8e,0x00);write_1302(0x80,0x80|temp);//miaowrite_1302(0x8e,0x80);break;case 2: write_1602com(er+8);//fen//write_1602com(0x0f);break;case 3: write_1602com(er+5);//shi//write_1602com(0x0f);break;case 4: write_1602com(yh+0x0f);//week //write_1602com(0x0f);break;case 5: write_1602com(yh+0x0b);//ri//write_1602com(0x0f);break;case 6: write_1602com(yh+0x08);//yue //write_1602com(0x0f);break;case 7: write_1602com(yh+0x05);//nian //write_1602com(0x0f);break;case 8:write_1602com(0x0c);//设置光标不闪烁TR0=1;//打开定时器temp=(miao)/10*16+(miao)%10;write_1302(0x8e,0x00);write_1302(0x80,0x00|temp);//miaowrite_1302(0x8e,0x80);break;}}}if(key1n!=0)//当key1按下以下。