电子万年历程序

SCLK_0();
_nop_(); _nop_(); _nop_();
SCLK_1();
dat>>=1;
}
}
/*从DS1302读出一字节*/
uchar Get_Byte_FROM_DS1302()
{
uchar i,dat = 0x00;
uchar AlarmClock[]={10,8};
//延时ms
void delay_ms(uint t)
{ uint i,j;
while(t--)
for(i=0;i<100;i++)
for(j=0;j<33;j++)
;}
//延时us
}
/*从DS1302指定位置写数据*/
void Write_Data(uchar addr, uchar dat)
{
uchar temp;
temp = (((dat/10)<<4)|(dat%10));
RST_0();
SCLK_0();
_nop_(); _nop_(); _nop_();
#define SCLK_1() SCLK=1
#define SCLK_0() SCLK=0
#define RST_1() RST=1
#define RST_0() RST=0
//LCD数据端口定义
#define LCD_Data P3
sbit BF=P3^7;
for( i=0; i<2; i++)
Write_Data( RAM+2*i, AlarmClock[i]);
Write_Data(0x8E,0x80);
}
//-----------------------------------------------------------------
RST_1();
Write_Byte_TO_DS1302(addr);
Write_Byte_TO_DS1302(temp);
RST_0();
}
/*从dS1302指定位置读数据*/
uchar Read_Data(uchar addr)
{ uchar dat;
RST_0();
AlarmClock[i] = Read_Data( RAM+1+2*i);
}
uchar Clock_On() //闹钟开始
{
if ((DateTime[2]== AlarmClock[1])&& ( DateTime[1]== AlarmClock[0] ) )//比较时
return 1;
// 向RAM中读数据
//-----------------------------------------------------------------
void Read_RAM_Clock()
{
uchar i;
for( i=0; i<2; i++) //读取RAM地址 1，3~31
void delay_5us(uint t)
{
while(t--)
_nop_();
}
/* 向DS1302写入一字节*/
void Write_Byte_TO_DS1302(uchar dat)
{uchar i;
for(i=0; i<8; i++)
{
IO=(bit)(dat&0x01);
#define DI_1() p0_0=1;
#define DI_0() p0_0=0;
//DS1302端口数据读写(方向)
#define DATA_IO_RD() IO=1
//DS1302控制引脚操作定义
#define WR_IO_0() IO=0
#define WR_IO_1() IO=1
else if(y == 1)
Write_LCD_Command(0xC0 | x);}
/* LCD初始化*/
void Initialize_LCD()
{ Write_LCD_Command( 0x38); delay_5us(150);//8位，双行，5*7
Write_LCD_Command( 0x01); delay_5us(150);//清屏
sbit p2_6=P2^6;
sbit ALARM_OPEN=P0^7;
sbit p0_0=P0^0;
//按键定义
#define KEY_SET() p2_3==0
#define KEY_UP() p2_4==0
#define KEY_DOWN() p2_5==0
#define BUZZER_0() p2_6==0
sbit RS=P1^4;
sbit RW=P1^3;
sbit EN=P1^2;
//LCD控制引脚操作定义
#define RS_1() RS=1
#define RS_0() RS=0
#define RW_1() RW=1
#define RW_0() RW=0
#define EN_1() EN=1
{ uchar i=0;
if(y == 0)
Write_LCD_Command(0x80| x);
else if(y == 1)
Write_LCD_Command(0xC0 | x);
SCLK_0();
_nop_(); _nop_(); _nop_();
RST_1();
Write_Byte_TO_DS1302(addr);
DATA_IO_RD();
dat = Get_Byte_FROM_DS1302();
RST_0();return dat;
}
/*读取当前日期*/
Write_LCD_Command( 0x06); delay_5us(155);//字符进入，屏幕不动，字符后移
Write_LCD_Command( 0x0c); delay_5us(155);//显示开，关光标
}
/* 显示字符串*/
void LCD_ShowString(uchar x, uchar y,char *str)
for(i =0; i<7; i++) //依次读取秒，分，时，日，月，周，年
{Write_Data((0x80 + 2*i),DateTime[i]);
}Write_Data(0x8E,0x80);
}
//-----------------------------------------------------------------
void GetDateTime()
{uchar i,addr = 0x81;
for(i =0; i<7; i++) //依次读取秒，分，时，日，月，周，年
{DateTime[i] =Read_Data( addr); //_nop_();_nop_(); _nop_();
addr += 2;
#define EN_0() EN=0
//0,1,2,3,4,5,6分别对应周日,周一至周六
//uchar *WEEK[] = {"MON","TUS","WEN","THU","FRI","SAT","SUN"};
//所读取/设置的日期时间秒，分，时，日，月，周，年
uchar DateTime[]={35,10,8,01,7,7,11};
#include <reg52.H> //调用外函数//
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include<intrins.h> //包含_nop_()函数定义的头文件
#define RAM 0xC0 //片内RAM地址
//DS1302引脚定义
sbit RST=P1^5;
sbit IO=P1^7;
sbit SCLK=P1^6;
sbit p2_3=P2^3;
sbit p2_4=P2^4 ;
sbit p2_5=P2^5 ;
RS_1();RW_0();
delay_5us(1);
LCD_Data = dat;
EN_1();
delay_5us(5);
EN_0();}
/*设置显示位置*/
void Set_LCD_POS(uchar x,uchar y)
{if(y == 0)
Write_LCD_Command(0x80 | x);
for(i=0; i<8; i++)
{ dat>>=1;
DATA_IO_RD();
SCLK_1();
_nop_();
SCLK_0();
if(IO)
dat|= 0x80;
}
return dat /16 *10 +dat%16 ;