Question

跪求单片机c51一个多功能时钟设计。要闹钟。调整时间、秒表、就行了。急求。。。C语言编写

Answer 1

//给你发一个数码管输出的可调节时钟的程序，<DS1302.H>在最后
#include <at89x52.h>
#include <DS1302.h>
//定义共阳极字型码0123456789-
unsigned char code dispcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf};
unsigned char time[]={0,0,0,0,0,0,0,0};//用来储存时间
unsigned char date[]={0,0,0,0,0,0,0,0};//用来储存日期
SYSTEMTIME time1; //在ds1302.h文件中已经定义了一个名字为SYSTEMTIME的结构体,在这里我们定义一个变量名
//为time的SYSTEMTIME结构体
void delay(unsigned char i) //延时子程序
{
unsigned char j;
while((i--)!=0)
{
for(j=123;j>0;j--);
}
}
unsigned char button_time(n,x,y) //时钟调整子程序
unsigned char n,x,y;
{
if(P1_7==0)
{
delay(50);
if(P1_7==0)
{
n++;
if(n==x)
n=0;
while(P1_7==0);
}
}

if(P1_5==0)
{
delay(50);
if(P1_5==0)
{
if(n==0)
n=y;
else
n--;
while(P1_5==0);
}
}
return n;
}

unsigned char button_date(n,x,y) //日期调整子程序
unsigned char n,x,y;
{
if(P1_7==0)
{
delay(50);
if(P1_7==0)
{
n++;
if(n==x)
n=1;
while(P1_7==0);
}
}

if(P1_5==0)
{
delay(50);
if(P1_5==0)
{
if(n==1)
n=y;
else
n--;
while(P1_5==0);
}
}
return n;
}

void display(second10,second1,minute10,minute1,hour10,hour1) //显示子程序
unsigned char second10,second1,minute10,minute1,hour10,hour1;
{
P2=0xfe;
P0=dispcode[second10];//显示秒的十位
delay(1);

P2=0xfd;
P0=dispcode[second1]; //显示秒的个位
delay(1);

P2=0xfb;
P0=dispcode[10]; //显示"-"
delay(1);

P2=0xf7;
P0=dispcode[minute10];//显示分的十位
delay(1);

P2=0xef;
P0=dispcode[minute1]; //显示分的个位
delay(1);

P2=0xdf;
P0=dispcode[10]; //显示"-"
delay(1);

P2=0xbf;
P0=dispcode[hour10]; //显示时的十位
delay(1);

P2=0x7f;
P0=dispcode[hour1]; //显示时的个位
delay(1);
}

void main()
{
unsigned char flag;
Initial_DS1302(); //初始化DS1302这个时钟芯片,
while(1)
{
DS1302_GetTime(&time1); //读取时间参数
time[5]=(time1.Second)%10; //把秒的个位数据存入time[5]
time[4]=(time1.Second)/10; //把秒的十位数据存入time[4]
time[3]=(time1.Minute)%10; //把分的个位数据存入time[3]
time[2]=(time1.Minute)/10; //把分的十位数据存入time[2]
time[1]=(time1.Hour)%10; //把时的个位数据存入time[1]
time[0]=(time1.Hour)/10; //把时的十位数据存入time[0]
date[5]=(time1.Day)%10;
date[4]=(time1.Day)/10;
date[3]=(time1.Month)%10;
date[2]=(time1.Month)/10;
date[1]=(time1.Year)%10;
date[0]=(time1.Year)/10;

if(P1_4==0) //如果按下Time Start键一下,时钟开始正常显示时间,再按一下,显示日期
{
delay(50);
if(P1_4==0)
{
flag++;
if(flag>1)
{
flag=0;
}
}
while(P1_4==0);
}
if(P1_6==0) //如果按下Time Set键一下,开始显示日期,再按一下进入日期跟时钟的调节模式
{
delay(50);
if(P1_6==0)
{
flag++;
if(flag>7)
{
flag=0;
}
}
while(P1_6==0);
}

switch(flag)
{
case 0:display(time[0],time[1],time[2],time[3],time[4],time[5]); //调用子函数display,把存入数组time的数据给显示出来
break;

case 1:display(date[0],date[1],date[2],date[3],date[4],date[5]); //调用子函数display,把存入数组date的数据给显示出来
break;

case 2:time1.Year=button_date(time1.Year,100,99); //调整年
DS1302_SetTime(0x8c,time1.Year);
display(date[0],date[1],10,10,10,10);
break;

case 3:time1.Month=button_date(time1.Month,13,12); //调整月
DS1302_SetTime(0x88,time1.Month);
display(10,10,date[2],date[3],10,10);
break;

case 4:time1.Day=button_date(time1.Day,32,31); //调整日
DS1302_SetTime(0x86,time1.Day);
display(10,10,10,10,date[4],date[5]);
break;

case 5:time1.Hour=button_time(time1.Hour,24,23); //调整时
DS1302_SetTime(0x84,time1.Hour);
display(time[0],time[1],10,10,10,10);
break;

case 6:time1.Minute=button_time(time1.Minute,60,59); //调整分
DS1302_SetTime(0x82,time1.Minute);
display(10,10,time[2],time[3],10,10);
break;

case 7:time1.Second=button_time(time1.Second,60,59); //调整秒
DS1302_SetTime(0x80,time1.Second);
display(10,10,10,10,time[4],time[5]);
break;
}
}
}
//DS1302.H

#ifndef _REAL_TIMER_DS1302_2003_7_21_
#define _REAL_TIMER_DS1302_2003_7_21_
#include <at89x52.h>
sbit DS1302_CLK = P1^0; //实时时钟时钟线引脚
sbit DS1302_IO = P1^1; //实时时钟数据线引脚
sbit DS1302_RST = P1^2; //实时时钟复位线引脚
sbit ACC0 = ACC^0;
sbit ACC7 = ACC^7;

typedef struct __SYSTEMTIME__
{
unsigned char Second;
unsigned char Minute;
unsigned char Hour;
unsigned char Week;
unsigned char Day;
unsigned char Month;
unsigned char Year;
unsigned char DateString[9];
unsigned char TimeString[9];
}SYSTEMTIME; //定义的时间类型

#define AM(X) X
#define PM(X) (X+12) // 转成24小时制
#define DS1302_SECOND 0x80 //秒寄存器
#define DS1302_MINUTE 0x82 //分寄存器
#define DS1302_HOUR 0x84
#define DS1302_WEEK 0x8A
#define DS1302_DAY 0x86
#define DS1302_MONTH 0x88
#define DS1302_YEAR 0x8C
#define DS1302_RAM(X) (0xC0+(X)*2) //用于计算 DS1302_RAM 地址的宏

void DS1302InputByte(unsigned char d) //实时时钟写入一字节(内部函数)
{
unsigned char i;
ACC = d;
for(i=8; i>0; i--)
{
DS1302_IO = ACC0; //相当于汇编中的 RRC
DS1302_CLK = 1;
DS1302_CLK = 0; //发一个高跳变到低的脉冲
ACC = ACC >> 1;
}
}

unsigned char DS1302OutputByte(void) //实时时钟读取一字节(内部函数)
{
unsigned char i;
for(i=8; i>0; i--)
{
ACC = ACC >>1; //相当于汇编中的 RRC
ACC7 = DS1302_IO;
DS1302_CLK = 1;
DS1302_CLK = 0; //发一个高跳变到低的脉冲
}
return(ACC);
}

void Write1302(unsigned char ucAddr, unsigned char ucDa) //ucAddr: DS1302地址, ucData: 要写的数据
{
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr); // 地址，命令
DS1302InputByte(ucDa); // 写1Byte数据
DS1302_CLK = 1;
DS1302_RST = 0; //RST 0->1->0,CLK 0->1
}

unsigned char Read1302(unsigned char ucAddr) //读取DS1302某地址的数据
{
unsigned char ucData;
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1; //enable
DS1302InputByte(ucAddr|0x01); // 地址，命令
ucData = DS1302OutputByte(); // 读1Byte数据
DS1302_CLK = 1; //RST 0->1->0,CLK 0->1
DS1302_RST = 0;
return(ucData);
}

void DS1302_SetProtect(bit flag) //是否写保护
{
if(flag)
Write1302(0x8E,0x10); //WP=1,不能写入
else
Write1302(0x8E,0x00);//WP=0,可以写入
}

void DS1302_SetTime(unsigned char Address, unsigned char Value) // 设置时间函数
{
DS1302_SetProtect(0);
Write1302(Address, ((Value/10)<<4 | (Value%10))); //高4位为十位，低4位为个位
}

void DS1302_GetTime(SYSTEMTIME *Time)
{
unsigned char ReadValue;
ReadValue = Read1302(DS1302_SECOND);
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);//转换成10进制的秒
ReadValue = Read1302(DS1302_MINUTE);
Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_HOUR);
Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_DAY);
Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_WEEK);
Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_MONTH);
Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_YEAR);
Time->Year = ((ReadValue&0xf0)>>4)*10 + (ReadValue&0x0F);
}
/*
void DateToStr(SYSTEMTIME *Time)
{
Time->DateString[0] = Time->Year/10 + '0'; //数字类型转化为字符类型
Time->DateString[1] = Time->Year%10 + '0';
Time->DateString[2] = '-';
Time->DateString[3] = Time->Month/10 + '0';
Time->DateString[4] = Time->Month%10 + '0';
Time->DateString[5] = '-';
Time->DateString[6] = Time->Day/10 + '0';
Time->DateString[7] = Time->Day%10 + '0';
Time->DateString[8] = '\0';
}

void TimeToStr(SYSTEMTIME *Time)
{
Time->TimeString[0] = Time->Hour/10 + '0'; //数字类型转化为字符类型
Time->TimeString[1] = Time->Hour%10 + '0';
Time->TimeString[2] = ':';
Time->TimeString[3] = Time->Minute/10 + '0';
Time->TimeString[4] = Time->Minute%10 + '0';
Time->TimeString[5] = ':';
Time->TimeString[6] = Time->Second/10 + '0';
Time->TimeString[7] = Time->Second%10 + '0';
Time->DateString[8] = '\0';
}
*/
void Initial_DS1302(void)
{
unsigned char Second=Read1302(DS1302_SECOND);
if(Second&0x80) //如果第七为1（表明没有启动), 则启动时钟
DS1302_SetTime(DS1302_SECOND,0);
}

/********************************************************************************
void BurstWrite1302(unsigned char *pWClock) //往DS1302写入时钟数据(多字节方式)
{
unsigned char i;
Write1302(0x8e,0x00); // 控制命令,WP=0,写操作?
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(0xbe); // 0xbe:时钟多字节写命令
for (i = 8; i>0; i--) //8Byte = 7Byte 时钟数据 + 1Byte 控制
{
DS1302InputByte(*pWClock); // 写1Byte数据
pWClock++;
}
DS1302_CLK = 1;
DS1302_RST = 0;
}

void BurstRead1302(unsigned char *pRClock) //读取DS1302时钟数据(时钟多字节方式)
{
unsigned char i;
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(0xbf); // 0xbf:时钟多字节读命令
for (i=8; i>0; i--)
{
*pRClock = DS1302OutputByte(); // 读1Byte数据
pRClock++;
}
DS1302_CLK = 1;
DS1302_RST = 0;
}

void DS1302_TimeStop(bit flag) // 是否将时钟停止
{
unsigned char Data;
Data=Read1302(DS1302_SECOND);
DS1302_SetProtect(0);
if(flag)
Write1302(DS1302_SECOND, Data|0x80);//停止
else
Write1302(DS1302_SECOND, Data&0x7F);不停止
}
********************************************************************************/
#endif