智能电子钟LCD显示ds1302芯片.docx
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智能电子钟LCD显示ds1302芯片
#include
#include
#defineuintunsignedint
#defineucharunsignedchar
#defineDateP3//数码管数据口
#definecomP1
sbitDS1302_CLK=P1^7;//实时时钟时钟线引脚
sbitDS1302_IO=P2^6;//实时时钟数据线引脚
sbitDS1302_RST=P1^6;//实时时钟复位线引脚
sbitACC0=ACC^0;
sbitACC7=ACC^7;
ucharcodetable[]={0x3f,0x06,0x5b,0x4f
0x66,0x6d,0x7d,0x07,0x7f,0x6f};
charhide_sec,hide_min,hide_hour,hide_day,hide_week,
hide_month,hide_year;//秒,分,时到日,月,年位闪的计数
sbitSet=P2^0;//模式切换键
sbitUp=P2^1;//加法按钮
sbitDown=P2^2;//减法按钮
sbitout=P2^3;//立刻跳出调整模式按钮
sbitdi=P2^4;//蜂鸣器
chardone,count,temp,flag,up_flag,down_flag;
ucharTempBuffer[5],week_value[2];
voidshow_time();//显示程序
/***********************
*功能:
延时,延时时间大概为ms。
**********************/
voiddelayms(intx)
{inti,j;
for(i=110;i>0;i--)
for(j=x;j>0;j--);
}
voidbeep()
{
di=1;delayms(400);di=0;}
/*************************
*名称:
数码管显示
*************************/
xianshi(ucharshi1,ucharshi2,ucharfen1,ucharfen2,ucharmiao1,ucharmiao2)
{
Date=table[shi1];com=0xfe;delayms(10);
Date=table[shi2];com=0xfd;delayms(10);
Date=table[fen1];com=0xfb;delayms(10);
Date=table[fen2];com=0xf7;delayms(10);
Date=table[miao1];com=0xef;delayms(10);
Date=table[miao2];com=0xdf;delayms(10);
}
/***********1602液晶显示部分子程序*********/
sbitLcdRs=P2^5;
sbitLcdRw=P2^6;
sbitLcdEn=P2^7;
sfrDBPort=0x80;
//内部等待函数****************
unsignedcharLCD_Wait(void)
{LcdRs=0;
LcdRw=1;_nop_();
LcdEn=1;_nop_();
LcdEn=0;
returnDBPort;
}
//向LCD写入命令或数据******************
#defineLCD_COMMAND0//Command
#defineLCD_DATA1//Data
#defineLCD_CLEAR_SCREEN0x01//清屏
#defineLCD_HOMING0x02//光标返回原点
voidLCD_Write(bitstyle,unsignedcharinput)
{LcdEn=0;LcdRs=style;LcdRw=0;
_nop_();DBPort=input;_nop_();//注意顺序
LcdEn=1;_nop_();//注意顺序
LcdEn=0;_nop_();LCD_Wait();
}
//设置显示模式***********************
#defineLCD_SHOW0x04//显示开
#defineLCD_HIDE0x00//显示关
#defineLCD_CURSOR0x02//显示光标
#defineLCD_NO_CURSOR0x00//无光标
#defineLCD_FLASH0x01//光标闪动
#defineLCD_NO_FLASH0x00//光标不闪动
voidLCD_SetDisplay(unsignedcharDisplayMode)
{LCD_Write(LCD_COMMAND,0x08|DisplayMode);}
//设置输入模式****************************
#defineLCD_AC_UP0x02
#defineLCD_AC_DOWN0x00//default
#defineLCD_MOVE0x01//画面可平移
#defineLCD_NO_MOVE0x00//default
voidLCD_SetInput(unsignedcharInputMode)
{LCD_Write(LCD_COMMAND,0x04|InputMode);}
//初始化LCD*************************
voidLCD_Initial()
{LcdEn=0;
LCD_Write(LCD_COMMAND,0x38);//8位数据端口,2行显示,5*7点阵
LCD_Write(LCD_COMMAND,0x38);
LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR);//开启显示,无光标
LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN);//清屏
LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE);//AC递增,画面不动
}
//液晶字符输入的位置************************
voidGotoXY(unsignedcharx,unsignedchary)
{if(y==0)LCD_Write(LCD_COMMAND,0x80|x);
if(y==1)LCD_Write(LCD_COMMAND,0x80|(x-0x40));
}//将字符输出到液晶显示
voidPrint(unsignedchar*str)
{while(*str!
='\0')
{LCD_Write(LCD_DATA,*str);str++;}}
/***********DS1302时钟部分子程序*********/
typedefstruct__SYSTEMTIME__
{
unsignedcharSecond;
unsignedcharMinute;
unsignedcharHour;
unsignedcharWeek;
unsignedcharDay;
unsignedcharMonth;
unsignedcharYear;
unsignedcharDateString[11];
unsignedcharTimeString[9];
}SYSTEMTIME;//定义的时间类型
SYSTEMTIMECurrentTime;
#defineAM(X)X
#definePM(X)(X+12)//转成24小时制
#defineDS1302_SECOND0x80//时钟芯片的寄存器位置,存放时间
#defineDS1302_MINUTE0x82
#defineDS1302_HOUR0x84
#defineDS1302_WEEK0x8A
#defineDS1302_DAY0x86
#defineDS1302_MONTH0x88
#defineDS1302_YEAR0x8C
voidDS1302InputByte(unsignedchard)
{//实时时钟写入一字节(内部函数)
unsignedchari;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;ACC=ACC>>1;}}
unsignedcharDS1302OutputByte(void)
{//实时时钟读取一字节(内部函数)
unsignedchari;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;}
return(ACC);}
voidWrite1302(unsignedcharucAddr,unsignedcharucDa)
{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;
}
unsignedcharRead1302(unsignedcharucAddr)
{//读取DS1302某地址的数据
unsignedcharucData;
DS1302_RST=0;
DS1302_CLK=0;
DS1302_RST=1;
DS1302InputByte(ucAddr|0x01);//地址,命令
ucData=DS1302OutputByte();//读1Byte数据
DS1302_CLK=1;
DS1302_RST=0;
return(ucData);}
voidDS1302_GetTime(SYSTEMTIME*Time)
{//获取时钟芯片的时钟数据到自定义的结构型数组
unsignedcharReadValue;
ReadValue=Read1302(DS1302_SECOND);
Time->Second=((ReadValue&0x70)>>4)*10+(ReadValue&0x0F);
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&0x70)>>4)*10+(ReadValue&0x0F);}
voidDateToStr(SYSTEMTIME*Time)
{//将时间年,月,日,星期数据转换成液晶显示字符串,放到数组里DateString[]
if(hide_year<2)
{Time->DateString[0]='2';
Time->DateString[1]='0';
Time->DateString[2]=Time->Year/10+'0';
Time->DateString[3]=Time->Year%10+'0';}
else{Time->DateString[0]='';Time->DateString[1]='';
Time->DateString[2]='';Time->DateString[3]='';}
Time->DateString[4]='/';
if(hide_month<2)
{Time->DateString[5]=Time->Month/10+'0';
Time->DateString[6]=Time->Month%10+'0';}
else{Time->DateString[5]='';Time->DateString[6]='';}
Time->DateString[7]='/';
if(hide_day<2)
{Time->DateString[8]=Time->Day/10+'0';
Time->DateString[9]=Time->Day%10+'0';}
else{Time->DateString[8]='';Time->DateString[9]='';}
if(hide_week<2){
//星期的数据另外放到week_value[]数组里,,因为等一下要在最后显视
week_value[0]=Time->Week%10+'0';
}
else{week_value[0]='';}
week_value[1]='\0';
Time->DateString[10]='\0';//字符串末尾加'\0',判断结束字符
}
voidTimeToStr(SYSTEMTIME*Time)
{if(hide_hour<2)
{Time->TimeString[0]=Time->Hour/10+'0';
Time->TimeString[1]=Time->Hour%10+'0';}
else{Time->TimeString[0]='';Time->TimeString[1]='';}
Time->TimeString[2]=':
';
if(hide_min<2){Time->TimeString[3]=Time->Minute/10+'0';
Time->TimeString[4]=Time->Minute%10+'0';}
else{Time->TimeString[3]='';Time->TimeString[4]='';}
Time->TimeString[5]=':
';
if(hide_sec<2)
{Time->TimeString[6]=Time->Second/10+'0';
Time->TimeString[7]=Time->Second%10+'0';}
else{Time->TimeString[6]='';Time->TimeString[7]='';}
Time->DateString[8]='\0';}
voidInitial_DS1302(void)//时钟芯片初始化
{unsignedcharSecond=Read1302(DS1302_SECOND);
if(Second&0x80)//判断时钟芯片是否关闭
{Write1302(0x8e,0x00);//写入允许
Write1302(0x8c,0x07);//
Write1302(0x88,0x07);Write1302(0x86,0x25);
Write1302(0x8a,0x07);Write1302(0x84,0x23);Write1302(0x82,0x59);
Write1302(0x80,0x55);Write1302(0x8e,0x80);//禁止写入
}
}
voidDelay1ms(unsignedintcount)
{unsignedinti,j;
for(i=0;ifor(j=0;j<20;j++);}
/*延时子程序*/
voidmdelay(uintdelay)
{uinti;for(;delay>0;delay--){for(i=0;i<62;i++)//1ms延时.
{;}}}
voidoutkey()//跳出调整模式,返回默认显示
{ucharSecond;if(out==0){mdelay(8);count=0;
hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;
Second=Read1302(DS1302_SECOND);
Write1302(0x8e,0x00);//写入允许
Write1302(0x80,Second&0x7f);
Write1302(0x8E,0x80);//禁止写入
done=0;while(out==0);}}
///////////////////////////////////////////////////////////////////////////////
voidUpkey()//升序按键
{Up=1;if(Up==0)
{
mdelay(8);
switch(count)
{case1:
temp=Read1302(DS1302_SECOND);//读取秒数
temp=temp+1;//秒数加1
up_flag=1;//数据调整后更新标志
if((temp&0x7f)>0x59)//超过59秒,清零
temp=0;break;
case2:
temp=Read1302(DS1302_MINUTE);//读取分数
temp=temp+1;//分数加1
up_flag=1;
if(temp>0x59)//超过59分,清零
temp=0;break;
case3:
temp=Read1302(DS1302_HOUR);//读取小时数
temp=temp+1;//小时数加1
up_flag=1;
if(temp>0x23)//超过23小时,清零
temp=0;break;
case4:
temp=Read1302(DS1302_WEEK);//读取星期数
temp=temp+1;//星期数加1
up_flag=1;
if(temp>0x7)
temp=1;
break;
case5:
temp=Read1302(DS1302_DAY);//读取日数
temp=temp+1;//日数加1
up_flag=1;
if(temp>0x31)
temp=1;
break;
case6:
temp=Read1302(DS1302_MONTH);//读取月数
temp=temp+1;//月数加1
up_flag=1;
if(temp>0x12)
temp=1;
break;
case7:
temp=Read1302(DS1302_YEAR);//读取年数
temp=temp+1;//年数加1
up_flag=1;
if(temp>0x85)
temp=0;
break;
default:
break;}
while(Up==0);}}
///////////////////////////////////////////////////////////////////////////////
voidDownkey()//降序按键
{Down=1;if(Down==0)
{mdelay(8);
switch(count)
{case1:
temp=Read1302(DS1302_SECOND);//读取秒数
temp=temp-1;//秒数减1
down_flag=1;//数据调整后更新标志
if(temp==0x7f)//小于0秒,返回59秒
temp=0x59;
break;
case2:
temp=Read1302(DS1302_MINUTE);//读取分数
temp=temp-1;//分数减1
down_flag=1;
if(temp==-1)
temp=0x59;//小于0秒,返回59秒
break;
case3:
temp=Read1302(DS1302_HOUR);//读取小时数
temp=temp-1;//小时数减1
down_flag=1;
if(temp==-1)
temp=0x23;
break;
case4:
temp=Read1302(DS1302_WEEK);//读取星期数
temp=temp-1;//星期数减1
down_flag=1;
if(temp==0)
temp=0x7;;
break;
case5:
temp=Read1302(DS1302_DAY);//读取日数
temp=temp-1;//日数减1
down_flag=1;
if(te