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基于ds18b20的简单单片机数字时钟
#include <REGX52.H>
#include <stdio.h>
#include "key.h"
#include "EEPROM.h"
#include "LCD1602.h"
#include "DS1302.h"
#include "SPEAKER.H"
bit TimeReadFlag,FlashFlag;
void Delay_ms(unsigned int Cnt);
void SystemInit(void);
void SetAlarm( AlarmTypeDef *Alarm );
void DisTime( RealTimeTypeDef *Time );
void TimeFlash( unsigned char flash );
void SetTime(void);
bit Is_LeapYear(unsigned int year);
unsigned char Get_Week(unsigned int Year,unsigned char Month,unsigned char Date);
unsigned char Get_DateMax(unsigned int Year,unsigned char Month);
unsigned char KeyNum;
unsigned int KeyUpCnt,KeyDownCnt;
unsigned char code DateMaxTab[13] = {
0,31,28,31,30,31,30,31,31,30,31,30,31,
};
void main()
{
SystemInit();
RealTime.Year_H = 20;
while(1)
{
if( TimeReadFlag )
{
GetTime( &RealTime );
TimeReadFlag = 0;
DisTime( &RealTime );
//Õûμ㱨ê±
if( RealTime.Min==59 && RealTime.Sec>=56 )
{
RCAP2H = 64614/256; //500Hz
RCAP2L = 64614%256;
RCAP1 = 15536; //50ms
Jiepai = 2;
JpCount = 0;
Mp = 1;
TR1 = 1;
TR2 = 1;
}
else if( RealTime.Min==0 && RealTime.Sec==0 )
{
RCAP2H = 65075/256; //1000Hz
RCAP2L = 65075%256;
RCAP1 = 15536; //50ms
Jiepai = 10;
JpCount = 0;
Mp = 1;
TR1 = 1;
TR2 = 1;
}
}
if( KeyNum==0x13 )
{
while(KeyNum==0x13);
SetTime();
}
}
}
void Delay_ms(unsigned int Cnt)
{
unsigned int t;
while(Cnt--)
{
t = 100;
while(--t);
}
}
void SystemInit()
{
TMOD = 0x11;
TH0 = (65536-10000)/256;
TL0 = (65536-10000)%256;
ET0 = 1;
ET1 = 1;
ET2 = 1;
EA = 1;
TR0 = 1;
PT2 = 1;
DS1302_Init();
LCD_initial();
}
/***********************************
ÏÔê¾ê±¼ä
***********************************/
void DisTime( RealTimeTypeDef *Time )
{
char cStr[20];
sprintf(cStr,"%04d-%02d-%02d %1d",Time->Year,(int)Time->Month,(int)Time->Date,(int)Time->Day);
LCD1602_write_string(0,0,cStr);
sprintf(cStr,"%02d:%02d:%02d",(int)Time->Hour,(int)Time->Min,(int)Time->Sec);
LCD1602_write_string(1,4,cStr);
}
/***********************************
ÏÔê¾éá˸
flash 0￡o2»éá˸
1￡oD¡ê±éá˸ 2￡o·Öéá˸ 3￡oÃëéá˸ 8￡oðoÅéá˸
4￡oÄêéá˸ 5￡oÔÂéá˸ 6￡oèÕÆúéá˸ 7￡oDÇÆúéá˸
***********************************/
void TimeFlash( unsigned char flash )
{
switch( flash )
{
case 1: LCD1602_write_string(1,4," "); break;
case 2: LCD1602_write_string(1,7," "); break;
case 3: LCD1602_write_string(1,10," "); break;
case 4: LCD1602_write_string(0,0," "); break;
case 5: LCD1602_write_string(0,5," "); break;
case 6: LCD1602_write_string(0,8," "); break;
case 7: LCD1602_write_string(0,15," "); break;
case 8: LCD1602_write_char(1,6,' ');
LCD1602_write_char(1,9,' ');
default:break;
}
}
/****************************************************************************
* Ãû 3Æ￡ou8 Is_Leap_Year(u16 year)
* 1| Äü￡oÅD¶ÏêÇ·ñêÇèòÄê
* èë¿ú2Îêy￡oyear
* 3ö¿ú2Îêy￡o1:êÇèòÄê￡»0:·ÇèòÄê
* Ëμ Ã÷￡o
* μ÷ó÷½·¨￡oÎT
****************************************************************************/
bit Is_LeapYear(unsigned int year)
{
if(year%4==0) //±ØDëÄü±»4Õû3y
{
if(year%100==0)
{
if(year%400==0)return 1;//èç1ûòÔ00½áÎ2,»1òaÄü±»400Õû3y
else return 0;
}
else return 1;
}
else return 0;
}
/****************************************************************************
* Ãû 3Æ￡ou8 Get_Week(u16 Year,u16 Month,u16 Date)
* 1| Äü￡oóÃ2ìàÕ￡¨Zeller￡©1«ê½¼ÆËãDÇÆú¼¸
w=y+[y/4]+[c/4]-2c+[26￡¨m+1￡©/10]+d-1
è»oów¶Ô7è¡óà¡￡
1«ê½ÖDμÄ·ûoÅo¬òåèçÏÂ￡¬w￡oDÇÆú￡»c￡oêà¼í￡»y￡oÄê￡¨á½Î»êy￡©￡»m￡oÔÂ￡¨m′óóúμèóú3￡¬D¡
óúμèóú14￡¬¼′Ôú2ìàÕ1«ê½ÖD￡¬Ä3ÄêμÄ1¡￠2ÔÂòa¿′×÷éÏò»ÄêμÄ13¡￠14ÔÂà′¼ÆËã￡¬±èèç2003Äê1ÔÂ1
èÕòa¿′×÷2002ÄêμÄ13ÔÂ1èÕà′¼ÆËã￡©￡»d￡oèÕ￡»[ ]′ú±íè¡Õû￡¬¼′Ö»òaÕûêy2¿·Ö¡￡
* èë¿ú2Îêy￡oYear:Äê; Month:ÔÂ; Date:èÕ¡￡
* 3ö¿ú2Îêy￡oDÇÆú¼¸ 1~6′ú±íDÇÆúò»~DÇÆúáù￡¬0′ú±íDÇÆúìì
* Ëμ Ã÷￡o
* μ÷ó÷½·¨￡oÎT
****************************************************************************/
unsigned char Get_Week(unsigned int Year,unsigned char Month,unsigned char Date)
{
int W,Y,C,M,D;
unsigned char day;
C = Year/100;
Y = Year%100;
M = Month;
if(M<3){M+=12;Y--;}
D = Date;
W = Y + Y/4 + C/4 - 2*C + 26*(M+1)/10 + D - 1;
while(W<0) W += 7;
day = W%7;
if(day==0) day = 7;
return day;
}
unsigned char Get_DateMax(unsigned int Year,unsigned char Month)
{
unsigned char DateMax = 0;
DateMax = DateMaxTab[ Month ];
if( Month==2 )
{
if( Is_LeapYear( Year ) ) DateMax++;
}
return DateMax;
}
void SetTime(void)
{
unsigned char tmpIndex=0,tmp[14];
unsigned char temp;
DisTime( &RealTime );
LCD_write_cmd(0x0F);
LCD1602_SetCursors(0,0);
while( tmpIndex<14 )
{
if( KeyNum==0x13 )
{
while(KeyNum==0x13);
break;
}
if( KeyNum<='9' && KeyNum >='0')// num
{
tmp[ tmpIndex ] = KeyNum-'0';
LCD_write_data( KeyNum );
tmpIndex++;
switch( tmpIndex )
{
case 4: LCD1602_SetCursors( 0,5 );break;
case 6: LCD1602_SetCursors( 0,8 );break;
case 8: LCD1602_SetCursors( 1,4 );break;
case 10: LCD1602_SetCursors( 1,7 );break;
case 12: LCD1602_SetCursors( 1,10 );break;
default: break;
}
while( KeyNum!=0xff );
}
}
if(tmpIndex == 14)
{
RealTime.Year = tmp[0]*1000+tmp[1]*100+tmp[2]*10+tmp[3];
if((tmp[4]*10+tmp[5])<=12 && (tmp[4]*10+tmp[5])>=1)
RealTime.Month = tmp[4]*10+tmp[5];
temp = DateMaxTab[RealTime.Month] +Get_DateMax(RealTime.Year,RealTime.Month);
if((tmp[6]*10+tmp[7])<=temp && (tmp[6]*10+tmp[7])>=1)
RealTime.Date = tmp[6]*10+tmp[7];
if((tmp[8]*10+tmp[9])<24 && (tmp[8]*10+tmp[9])>=0)
RealTime.Hour = tmp[8]*10+tmp[9];
if((tmp[10]*10+tmp[11])<60 && (tmp[10]*10+tmp[11])>=0)
RealTime.Min = tmp[10]*10+tmp[11];
if((tmp[12]*10+tmp[13])<60 && (tmp[12]*10+tmp[13])>=0)
RealTime.Sec = tmp[12]*10+tmp[13];
RealTime.Day = Get_Week( RealTime.Year , RealTime.Month , RealTime.Date );
WriteTime( &RealTime );
RealTime.Year_H = RealTime.Year/100;
}
LCD_write_cmd(0x0C);
}
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DS1302.zip
370.71 KB, 下载次数: 4, 下载积分: 黑币 -5
基于ds1802的简单数字时钟
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