基于AT89C+1602+DS1302+DS18B20的电子时钟带按键调整Word文档下载推荐.docx
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//DS1302片选
sbitDIO=P3^1;
//DS1302数据信号
sbitSCLK=P3^0;
//DS1302时钟信号
sbitkey0=P3^2;
//功能键
sbitkey1=P3^3;
//增大键
sbitkey2=P3^4;
//减小键
sbitbeep=P1^0;
//蜂鸣器
sbitACC7=ACC^7;
sbitACC0=ACC^0;
unsignedcharREAD_1302(unsignedcharaddr);
charhour,minute,second,week,day,month,year,tem;
unsignedcharnum,flag,count,wendu;
unsignedcharstr1[]="
20--"
;
unsignedcharstr2[]="
:
"
voiddelay(unsignedcharz);
voidINITIAL_1302();
voidWRITE_1302(unsignedcharaddr,unsignedchardate);
voidLCD_WRITE_COM(unsignedcharcom);
voidLCD_WRITE_DATA(unsignedchardate);
voidLCD_WRITE_SFM(unsignedcharaddr,unsignedchardate);
voidLCD_WRITE_NYR(unsignedcharaddr,unsignedchardate);
voidLCD_WRITE_WEEK(unsignedcharweek);
voidLCD_INITIAL();
voidkeyscan();
voidINITIAL_TEMER0();
voidw1602c(ucharcom);
voidw1602d(uchardata01);
voidwrite_temp(ucharadd,uchardate);
voidmain()
{
LCD_INITIAL();
//液晶初始化
INITIAL_1302();
//DS1302初始化
INITIAL_TEMER0();
//定时器初始化
beep=0;
//蜂鸣器长响一次
delay(1000);
beep=1;
while
(1)
{
keyscan();
//按键扫描
if(flag==0)//当标志位为0,允许读取DS1302数据,将数据送入液晶显示
second=READ_1302(0x81);
LCD_WRITE_SFM(8,second);
minute=READ_1302(0x83);
LCD_WRITE_SFM(5,minute);
hour=READ_1302(0x85);
LCD_WRITE_SFM(2,hour);
week=READ_1302(0x8b);
LCD_WRITE_WEEK(week);
day=READ_1302(0x87);
LCD_WRITE_NYR(9,day);
month=READ_1302(0x89);
LCD_WRITE_NYR(6,month);
year=READ_1302(0x8d);
LCD_WRITE_NYR(3,year);
wendu=ReadTemperature();
//将18b2头文件运行返回的函数结果送到变量wendu中,用于显示
write_temp(11,wendu);
//显示温度,从第二行第12个字符后开始显示
}
}
/**********************1602部份************************************/
voiddelay(unsignedcharz)//1602de延时函数
unsignedcharx,y;
for(x=z;
x>
0;
x--)
for(y=110;
y>
y--);
voidLCD_WRITE_COM(unsignedcharcom)//1602四线控制,将数据高四位和低四位分两次写入
LCD_RS=0;
LCD_E=1;
delay
(1);
P1=(P1&
0x0f)|(com&
0xf0);
//将com的高四位送到P1的高四位,并保持P1的低四位不变
delay
(2);
LCD_E=0;
delay(5);
com<
<
=4;
//将com的原低四位移到高四位,准备送到P1的高四位
voidLCD_WRITE_DATA(unsignedchardate)
LCD_RS=1;
0x0f)|(date&
date<
voidLCD_WRITE_SFM(unsignedcharaddr,unsignedchardate)
unsignedcharshi,ge;
shi=date/10;
ge=date%10;
LCD_WRITE_COM(0x80+0x40+addr);
LCD_WRITE_DATA(0x30+shi);
LCD_WRITE_DATA(0x30+ge);
voidLCD_WRITE_NYR(unsignedcharaddr,unsignedchardate)
charshi,ge;
LCD_WRITE_COM(0x80+addr);
voidLCD_WRITE_WEEK(unsignedcharweek)
LCD_WRITE_COM(0x80+12);
switch(week)
case1:
LCD_WRITE_DATA('
M'
);
delay(5);
O'
LCD_WRITE_DATA('
N'
1'
break;
case2:
T'
U'
E'
2'
case3:
W'
D'
3'
case4:
H'
4'
case5:
F'
R'
I'
5'
case6:
S'
A'
6'
case7:
7'
voidLCD_INITIAL()
unsignedchari;
LCD_WRITE_COM(0x28);
//0x28=00101000,将液晶设置为16*2显示,5*7点阵,4位数据口
//显示方式设置
LCD_WRITE_COM(0x0c);
//设置开显示,不显光标
LCD_WRITE_COM(0x06);
//默认(0x06)写入新数据后光标右移屏幕不移动
LCD_WRITE_COM(0x01);
//显示清0,数据指针清0
LCD_WRITE_COM(0x80);
for(i=0;
i<
16;
i++)
LCD_WRITE_DATA(str1[i]);
LCD_WRITE_COM(0x80+0x40);
//液晶第二行显示
9;
LCD_WRITE_DATA(str2[i]);
/***************************1302部分*****************************************/
voidWRITE_1302(unsignedcharaddr,unsignedchardate)
RST=0;
SCLK=0;
RST=1;
for(i=8;
i>
i--)
SCLK=0;
ACC=addr;
DIO=ACC0;
addr>
>
=1;
SCLK=1;
ACC=date;
date>
unsignedcharREAD_1302(unsignedcharaddr)
unsignedchari,date1,date2;
ACC7=DIO;
ACC>
date1=ACC;
date2=date1/16;
date1=date1%16;
date1=date1+date2*10;
return(date1);
voidINITIAL_1302()
WRITE_1302(WRITE_SECOND,READ_1302(READ_SECOND)&
0x7f);
//启动DS1302
/**************************键盘扫描部分***********************************/
voidkeyscan()
if(key0==0)//确认功能键按下
delay(20);
if(key0==0)//去抖
{beep=0;
delay(200);
while(!
key0);
//释放
num++;
switch(num)
flag=1;
//修改时间,禁止从DS1302读数据
TR0=0;
//定时器关
LCD_WRITE_COM(0x0f);
//光标开始闪烁
LCD_WRITE_COM(0x80+3);
//第一次按下,光标定位到年位置
break;
case2:
LCD_WRITE_COM(0x80+6);
//第二次按下,光标定位到月位置
break;
case3:
LCD_WRITE_COM(0x80+9);
//第三次按下,光标定位到日位置
case4:
//第四次按下,光标定位到星期位置
case5:
LCD_WRITE_COM(0x80+0x40+2);
//第五次按下,光标定位到时位置
case6:
LCD_WRITE_COM(0x80+0x40+5);
//第六次按下,光标定位到分位置
case7:
LCD_WRITE_COM(0x80+0x40+8);
//第七次按下,光标定位到秒位置
break;
case8:
num=0;
//第八次按下,记录清零
LCD_WRITE_COM(0x0c);
//不显示光标
WRITE_1302(WRITE_PROTECT,0x00);
//允许写操作
WRITE_1302(0x80,(second/10*16)+second%10);
//将调节后的秒写入DS1302
WRITE_1302(0x82,(minute/10*16)+minute%10);
//将调节后的分写入DS1302
WRITE_1302(0x84,(hour/10*16)+hour%10);
//将调节后的时写入DS1302
WRITE_1302(0x8a,(week/10*16)+week%10);
//将调节后的星期写入DS1302
WRITE_1302(0x86,(day/10*16)+day%10);
//将调节后的日写入DS1302
WRITE_1302(0x88,(month/10*16)+month%10);
//将调节后的月写入DS1302
WRITE_1302(0x8c,(year/10*16)+year%10);
//将调节后的年写入DS1302
WRITE_1302(WRITE_PROTECT,0x80);
//开写保护
flag=0;
//时间修改完毕,允许液晶从DS1302读数据
TR0=1;
}
if(num!
=0)
if(key1==0)//确认增大键按下
if(key1==0)//增大键确实按下
{
beep=0;
while(!
key1);
switch(num)
{
case1:
year++;
//调节年
if(year==100)year=0;
LCD_WRITE_NYR(3,year);
//将调节后的年送入液晶显示
LCD_WRITE_COM(0x80+3);
//光标回到指定处
break;
case2:
month++;
//调节月
if(month==13)month=0;
LCD_WRITE_NYR(6,month);
//将调节后的月送入液晶显示
LCD_WRITE_COM(0x80+6);
case3:
day++;
//调节日
if(day==32)day=0;
LCD_WRITE_NYR(9,day);
//将调节后的日送入液晶显示
LCD_WRITE_COM(0x80+9);
case4:
week++;
if(week==8)week=0;
LCD_WRITE_WEEK(week);
//将调节后的星期送入液晶显示
LCD_WRITE_COM(0x80+12);
case5:
hour++;
if(hour==24)hour=0;
LCD_WRITE_SFM(2,hour);
//将调节后的小时送入液晶显示
LCD_WRITE_COM(0x80+0x40+2);
case6:
minute++;
if(minute==60)minute=0;
LCD_WRITE_SFM(5,minute);
//将调节后的分送入液晶显示
LCD_WRITE_COM(0x80+0x40+5);
case7:
second++;
if(second==60)second=0;
LCD_WRITE_SFM(8,second);
//将调节后的秒送入液晶显示
LCD_WRITE_COM(0x80+0x40+8);
default:
}
}
if(key2==0)//确认减小键按下
if(key2==0)//减小键确实按下
key2);
year--;
if(year==-1)year=99;
LCD_WRITE_NYR(3,year);
LCD_WRITE_COM(0x80+3);
month--;
if(month==-1)month=12;
LCD_WRITE_NYR(6,month);
LCD_WRITE_COM(0x80+6);
day--;
if(day==-1)day=31;
LCD_WRITE_NYR(9,day);
LCD_WRITE_COM(0x80+9);
week--;
//调节星期
if(week==0)week=7;
LCD_WRITE_WEEK(week);
LCD_WRITE_COM(0x80+12);
hour--;
//调节时
if(hour==-1)hour=23;
LCD_WRITE_SFM(2,hour);
LCD_WRITE_COM(0x80+0x40+2);
minute--;
//调节分
if(minute==-1)minute=59;
LCD_WRITE_SFM(5,minute);
LCD_WRITE_COM(0x80+0x40+5);
second--;
//调节秒
if(second==-1)second=59;
LCD_WRITE_SFM(8,second);
LCD_WRITE_COM(0x80+0x40+8);
default:
}
/*********