×
嵌入式 > 技术百科 > 详情

DS1302控制代码

发布时间：2020-06-20 发布时间：
|
两天的成果， 
/*************************************/
#include
#define uint unsigned int
#define uchar unsigned char
uchar year,month,day,week,hours,minutes,seconds;
uchar flag1302,cnt;
/*************************************
控制按键
*************************************/
sbit K1=P1^0;
sbit K2=P1^2;
sbit K3=P1^4;
/*************************************
控制LCD液晶显示
*************************************/
sbit lcdwrite=P2^5;
sbit lcddatecommand=P2^6;
sbit lcde=P2^7;
/*************************************
控制DS1302时钟
*************************************/
sbit SCK=P3^6;
sbit RST=P3^5;
sbit SDA=P3^4;
/*************************************
延时子函数
*************************************/
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
{
for(y=0;y<=112;y++)
{
}
}
}
/*************************************
LCD写命令函数
*************************************/
void write_command(uchar command)
{
lcddatecommand=0; //开启写命令
lcdwrite=0; //只写不读
P0=command;
delay(1);
lcde=1; //形成使能E高脉冲
delay(1);
lcde=0;             //使能E拉低
}
/*************************************
LCD写数据函数
*************************************/
void write_date(uchar date)
{
lcddatecommand=1; //开启写数据
lcdwrite=0; //只写不读
P0=date;
delay(1);
lcde=1;              //形成使能E高脉冲
delay(1);
lcde=0;              //使能E拉低
}
/*************************************
LCD屏幕初始化
*************************************/
void lcdInit()
{
lcde=0;
write_command(0x38);//设置16*2显示，5*7点阵，8位数据接口
write_command(0x0c);//设置开显示，不显示光标
write_command(0x06);// 写一个字符后地址指针加1
write_command(0x01);//显示清0，数据指针清0
}
/*************************************
DS1302写字节函数
*************************************/
void write_1302byte(uchar date)
{
uchar i;
for(i=0;i<8;i++)
{
SCK=0;
SDA=date&0x01;
date=date>>1;
SCK=1;//将电平置为已知状态
}
}
/*************************************
DS1302读字节函数
*************************************/
uchar read_1302byte(uchar address)
{
uchar i,temp;
temp=0x00;
RST=0;
delay(1);
SCK=0;
delay(1);
RST=1;
delay(1);
write_1302byte(address);
for(i=0;i<8;i++)
{
if(SDA==1)
{
temp=temp|0x80;     //每次传输低字节
}
temp=temp>>1;
SCK=1;
delay(1);
SCK=0;
delay(1);
}
return temp;
}
/*************************************
往DS1302中写数据
*************************************/
void write_1302(uchar address,uchar date)
{
RST=0;
delay(1);
SCK=0;
delay(1);
RST=1;
delay(1);
write_1302byte(address);
write_1302byte(date);
RST=0;
}
/*************************************
往DS1302中读取数据
*************************************/
uchar read_1302(uchar address)
{
uchar date;
RST=0;
SCK=0;
RST=1;
write_1302byte(address);
date=read_1302byte(address);
SCK=1;
RST=0;
return date;
}
/*************************************
初始化时间
*************************************/
void Init_1302()
{
write_1302(0x8e,0x00); //写入不保护指令 
write_1302(0x80,(14/10)<<4|(14%10));//14秒钟
write_1302(0x82,(7/10)<<4|(7%10)); //7分钟
write_1302(0x84,(3/10)<<4|(3%10)); //3小时
write_1302(0x86,(6/10)<<4|(6%10));  //6日
write_1302(0x88,(6/10)<<4|(6%10)); //6月
write_1302(0x8A,(4/10)<<4|(4%10)); //周四
write_1302(0x8C,(13/10)<<4|(13%10));//13年
write_1302(0x90,0xa5); //打开充电功能，选择2K电阻充电方式
write_1302(0x8e,0x80); //写保护
}
/*************************************
时钟显示
*************************************/
void DisplayHours(uchar hours)
{
uchar shi,ge;
shi=hours/10;
ge=hours%10;
write_command(0x06);
write_command(0x80+0x40);
write_date(shi+48);
write_date(ge+48);
write_date(':');
}
/*************************************
分钟显示
*************************************/
void DisplayMinutes(uchar minutes)
{
uchar shi,ge;
shi=minutes/10;
ge=minutes%10;
write_command(0x06);
write_command(0x80+0x43);
write_date(shi+48);
write_date(ge+48);
write_date(':');
}[page]
/*************************************
秒钟显示
*************************************/
void DisplaySeconds(uchar seconds)
{
uchar shi,ge;
shi=seconds/10;
ge=seconds%10;
write_command(0x06);
write_command(0x80+0x46);
write_date(shi+48);
write_date(ge+48);
}
/*************************************
年份显示
*************************************/
void DisplayYear(uchar years)
{
uchar shi,ge;
shi=years/10;
ge=years%10;
write_command(0x06);
write_command(0x80+0x00);
write_date(shi+48);
write_date(ge+48);
write_date('-');
}
/*************************************
月份显示
*************************************/
void DisplayMonth(uchar month)
{
uchar shi,ge;
shi=month/10;
ge=month%10;
write_command(0x06);
write_command(0x80+0x03);
write_date(shi+48);
write_date(ge+48);
write_date('-');
}
/*************************************
日显示
*************************************/
void DisplayDay(uchar day)
{
uchar shi,ge;
shi=day/10;
ge=day%10;
write_command(0x06);
write_command(0x80+0x06);
write_date(shi+48);
write_date(ge+48);
}
/*************************************
礼拜显示
*************************************/
void DisplayWeek(uchar week)
{
uchar i;
i=week;
write_command(0x06);
write_command(0x80+0x09);
switch(i)
{
case 1:write_date('M');write_date('O');write_date('N');
  break;
case 2:write_date('T');write_date('H');write_date('E');
  break;
case 3:write_date('W');write_date('E');write_date('D');
  break;
case 4:write_date('T');write_date('H');write_date('U');
  break;
case 5:write_date('F');write_date('R');write_date('I');
      break;
case 6:write_date('S');write_date('A');write_date('T');
  break;
case 7:write_date('S');write_date('U');write_date('N');
          break;
}
}
/*************************************
读取日期
*************************************/
void read_date()
{
uchar ReadValue;
    ReadValue = read_1302(0x81);   
    seconds=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
 
    ReadValue = read_1302(0x83);  
    minutes=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
 
    ReadValue = read_1302(0x85);  
    hours=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); 
 
    ReadValue = read_1302(0x87);  
    day=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); 
 
    ReadValue = read_1302(0x89);  
    month=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
 
    ReadValue = read_1302(0x8d);  
    year=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); 
 
ReadValue=read_1302(0x8b);                     
    week=ReadValue&0x07;
 
    DisplaySeconds(seconds);           
    DisplayMinutes(minutes);        
    DisplayHours(hours);             
    DisplayDay(day);                
    DisplayMonth(month);            
    DisplayYear(year);          
DisplayWeek(week); 
}
/*************************************
修改日期
*************************************/
void change()
{
uchar temp,nian,yue,ri,zhou,shi,fen,miao;
if(K1==0)
{
delay(5);
if(K1==0)//证明功能键确实按下
{
cnt++;//计数器，计算按下的次数
write_1302(0x8e,0x00);//关闭写保护
}
}
/*******************************************
修改年份
*******************************************/
if(cnt==1)
{
temp=read_1302(0x8d);
nian=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
nian++;
if(nian>=100)
{
nian=0;
}
write_1302(0x8e,0x00);
write_1302(0x8c,(nian/10)<<4|(nian%10));
DisplayYear(nian);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
nian--;
if(nian==-1)
{
nian=99;
}
write_1302(0x8e,0x00);
write_1302(0x8c,(nian/10)<<4|(nian%10));
DisplayYear(nian);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改月份
*******************************************/
if(cnt==2)
{
temp=read_1302(0x89);
yue=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
yue++;
if(yue>=12)
{
yue=1;
}
write_1302(0x8e,0x00);
write_1302(0x88,(yue/10)<<4|(yue%10));
DisplayMonth(yue);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
yue--;
if(yue==0)
{
yue=12;
}
write_1302(0x8e,0x00);
write_1302(0x88,(yue/10)<<4|(yue%10));
DisplayMonth(yue);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改天数
*******************************************/
if(cnt==3)
{
temp=read_1302(0x87);
ri=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
ri++;
if(ri>=32)
{
ri=1;
}
write_1302(0x8e,0x00);
write_1302(0x86,(ri/10)<<4|(ri%10));
DisplayDay(ri);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
ri--;
if(ri==0)
{
ri=31;
}
write_1302(0x8e,0x00);
write_1302(0x86,(ri/10)<<4|(ri%10));
DisplayDay(ri);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改周
*******************************************/
if(cnt==4)
{
temp=read_1302(0x8B);
zhou=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
zhou++;
if(zhou>=8)
{
zhou=1;
}
write_1302(0x8e,0x00);
write_1302(0x8a,(zhou/10)<<4|(zhou%10));
DisplayWeek(zhou);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
zhou--;
if(zhou==-1)
{
zhou=7;
}
write_1302(0x8e,0x00);
write_1302(0x8a,(zhou/10)<<4|(zhou%10));
DisplayWeek(zhou);
write_1302(0x8e,0x80);
}
}
}[page]
/*******************************************
修改小时
*******************************************/
if(cnt==5)
{
temp=read_1302(0x85);
shi=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
shi++;
if(shi>=24)
{
shi=0;
}
write_1302(0x8e,0x00);
write_1302(0x84,(shi/10)<<4|(shi%10));
DisplayHours(shi);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
shi--;
if(shi==-1)
{
shi=23;
}
write_1302(0x8e,0x00);
write_1302(0x84,(shi/10)<<4|(shi%10));
DisplayHours(shi);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改分钟
*******************************************/
if(cnt==6)
{
temp=read_1302(0x83);
fen=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
fen++;
if(fen>=60)
{
fen=0;
}
write_1302(0x8e,0x00);
write_1302(0x82,(fen/10)<<4|(fen%10));
DisplayMinutes(fen);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
fen--;
if(fen==-1)
{
fen=59;
}
write_1302(0x8e,0x00);
write_1302(0x82,(fen/10)<<4|(fen%10));
DisplayMinutes(fen);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改秒钟
*******************************************/
if(cnt==7)
{
temp=read_1302(0x81);
miao=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
miao++;
if(miao>=60)
{
miao=0;
}
write_1302(0x8e,0x00);
write_1302(0x80,(miao/10)<<4|(miao%10));
DisplaySeconds(miao);
write_1302(0x8e,0x80);
}
}
if(K3==0)
{
delay(5);
if(K3==0)//K3键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
miao--;
if(miao==-1)
{
miao=59;
}
write_1302(0x8e,0x00);
write_1302(0x80,(miao/10)<<4|(miao%10));
DisplaySeconds(miao);
write_1302(0x8e,0x80);
}
}
}
if(cnt==8)
{
cnt=0;
}
}
/*************************************
主函数
*************************************/
void main()
{
lcdInit();
flag1302=read_1302(0x81);
if(flag1302&0x80)//秒钟的最高位为1才需要初始化
{
Init_1302();
}
while(1)
{
change();
read_date();
}
}
 

『本文转载自网络,版权归原作者所有,如有侵权请联系删除』

上一篇:DS1302用1602显示加按键调时 下一篇:DS12887在数据采集与监控中的应用

相关推荐

热门文章 更多
DAC811KP的技术参数

技术

硬件开发 EMC IC封装设计 射频RF 单片机IMCU 信号完整性 FPGA 电源 PCB设计 物联网 PCB工艺 PCBA

阅读

电子汇 最新资讯 EDA365原创吧

资源

公开课 研讨会 在线计算器

互动

论坛 外包
电巢APP下载电巢APP下载
关于我们 ｜ 手机版 ｜ EDA365电子论坛网 (粤ICP备18020198号)
GMT, 2020-03-13 09:00 , Processed in 0.109375 second(s), 13 queries , Gzip On.