#include <reg52.h>
#include <intrins.h>
#include <string.h>
#define uint unsigned int
#define uchar unsigned char
sbit IO = P1^0
sbit SCLK = P1^1
sbit RST = P1^2
sbit RS = P2^0
sbit RW = P2^1
sbit EN = P2^2
sbit KEY1=P3^4
sbit KEY2=P3^5
sbit KEY3=P3^6
uchar *WEEK[]={"SUN","***","MON","TUS","WEN","THU","FRI","SAT"}
uchar LCD_DSY_BUFFER1[]={"DATE 00-00-00"}
uchar LCD_DSY_BUFFER2[]={"TIME 00:00:00"}
uchar DateTime[7]//秒，分，时，日，月，周，年
uchar flag,flag_1,i,miao,fen,shi,ri,yue,zhou,nian
void DelayMS(uint ms)
{
uchar i
while(ms--)
{
for(i=0i<120i++)
}
}
/*****************************************************/
//函数名称: Write_A_Byte_TO_DS1302(uchar x)
//函数功能:向1302写入一个字节
//入口参数: x
//出口参数:无
//调用子程序:无
/*****************************************************/
void Write_A_Byte_TO_DS1302(uchar x)
{
uchar i
for(i=0i<8i++)
{
IO=x&0x01
SCLK=1
SCLK=0
x>>=1
}
}
void Write_DS1302(uchar add,uchar num)
{
SCLK=0
RST=0
RST=1
Write_A_Byte_TO_DS1302(add)
Write_A_Byte_TO_DS1302(num)
RST=0
SCLK=1
}
/*****************************************************/
//函数名称:Get_A_Byte_FROM_DS1302()
//函数功能:从1302读一个字节
//入口参数: 无
//出口参数:b/16*10+b%16
//调用子程序:无
/*****************************************************/
uchar Get_A_Byte_FROM_DS1302()
{
uchar i,b=0x00
for(i=0i<8i++)
{
b |= _crol_((uchar)IO,i)
SCLK=1SCLK=0
}
return b/16*10+b%16
}
/*****************************************************/
//函数名称:Read_Data(uchar addr)
//函数功能:指定位置读数据
//入口参数: addr
//出口参数:dat
//调用子程序:Write_Abyte_1302(addr)
/*****************************************************/
uchar Read_Data(uchar addr)
{
uchar dat
RST = 0SCLK=0RST=1
Write_A_Byte_TO_DS1302(addr)
dat = Get_A_Byte_FROM_DS1302()
SCLK=1RST=0
return dat
}
/*****************************************************/
//函数名称:GetTime()
//函数功能:读取时间
//入口参数: 无
//出口参数:无
//调用子程序:无
/*****************************************************/
void GetTime()
{
uchar i,addr = 0x81
for(i=0i<7i++)
{
DateTime[i]=Read_Data(addr)addr+=2
}
}
uchar Read_LCD_State()
{
uchar state
RS=0RW=1EN=1DelayMS(1)
state=P0
EN = 0DelayMS(1)
return state
}
void LCD_Busy_Wait()
{
while((Read_LCD_State()&0x80)==0x80)
DelayMS(5)
}
void Write_LCD_Data(uchar dat) //写数据到1602
{
LCD_Busy_Wait()
RS=1RW=0EN=0P0=datEN=1DelayMS(1)EN=0
}
void Write_LCD_Command(uchar cmd)//写命令
{
LCD_Busy_Wait()
RS=0RW=0EN=0P0=cmdEN=1DelayMS(1)EN=0
}
void Init_LCD() //1602 初始化
{
Write_LCD_Command(0x38)
DelayMS(1)
Write_LCD_Command(0x01)
DelayMS(1)
Write_LCD_Command(0x06)
DelayMS(1)
Write_LCD_Command(0x0c)
DelayMS(1)
}
void Set_LCD_POS(uchar p)
{
Write_LCD_Command(p|0x80)
}
void Display_LCD_String(uchar p,uchar *s) //1602显示
{
uchar i
Set_LCD_POS(p)
for(i=0i<16i++)
{
Write_LCD_Data(s[i])
DelayMS(1)
}
}
void write_com(uchar com)
{
RS=0
P0=com
DelayMS(5)
EN=1
DelayMS(5)
EN=0
}
void write_date(uchar date)
{
RS=1
P0=date
DelayMS(5)
EN=1
DelayMS(5)
EN=0
}
void display(uchar add,uchar date)
{
uchar shi,ge
shi=date/10
ge=date%10
write_com(0x80+0x40+add)
write_date(0x30+shi)
write_date(0x30+ge)
}
void display1(uchar add,uchar date)
{
uchar shi,ge
shi=date/10
ge=date%10
write_com(0x80+add)
write_date(0x30+shi)
write_date(0x30+ge)
}
void Format_DateTime(uchar d,uchar *a)
{
a[0]=d/10+'0'
a[1]=d%10+'0'
}
uchar ZH(uchar dat)
{
uchar tmp
tmp=dat/10
dat=dat%10
dat=dat+tmp*16
return dat
}
void Keyscan()
{
flag_1=1
while(flag_1)
{
if(KEY1==0)
{
DelayMS(5)
while(!KEY1)
flag=(flag+1)%8
switch(flag)
{
case(1): Write_LCD_Command(0x0f)
Write_LCD_Command(0x80+0x40+11)
break
case(2): Write_LCD_Command(0x80+0x40+8)
break
case(3): Write_LCD_Command(0x80+0x40+5)
break
case(4): Write_LCD_Command(0x80+13)
break
case(5): Write_LCD_Command(0x80+11)
break
case(6): Write_LCD_Command(0x80+8)
break
case(7): Write_LCD_Command(0x80+5)
break
case(0): flag_1=0
Write_LCD_Command(0x0c)
//miao
Write_DS1302(0x8e,0x00)
Write_DS1302(0x80,ZH(DateTime[0]))
Write_DS1302(0x8e,0x80)
//fen
Write_DS1302(0x8e,0x00)
Write_DS1302(0x82,ZH(DateTime[1]))
Write_DS1302(0x8e,0x80)
//shi
Write_DS1302(0x8e,0x00)
Write_DS1302(0x84,ZH(DateTime[2]))
Write_DS1302(0x8e,0x80)
//ri
Write_DS1302(0x8e,0x00)
Write_DS1302(0x86,ZH(DateTime[3]))
Write_DS1302(0x8e,0x80)
// yue
Write_DS1302(0x8e,0x00)
Write_DS1302(0x88,ZH(DateTime[4]))
Write_DS1302(0x8e,0x80)
//nian
Write_DS1302(0x8e,0x00)
Write_DS1302(0x8c,ZH(DateTime[6]))
Write_DS1302(0x8e,0x80)
break
}
}
if(flag!=0)
{
if(KEY2==0)
{
DelayMS(5)
if(KEY2==0)
while(!KEY2)
if(flag==1) //miao
{
DateTime[0]++
if(DateTime[0]==60)
DateTime[0]=0
write_com(0x80+0x40+11)
display(11,DateTime[0])
}
if(flag==2) //fen
{
DateTime[1]++
if(DateTime[1]==60)
DateTime[1]=0
write_com(0x80+0x40+8)
display(8,DateTime[1])
}
if(flag==3) //shi
{
DateTime[2]++
if(DateTime[2]==24)
DateTime[2]=0
write_com(0x80+0x40+5)
display(5,DateTime[2])
}
/* if(flag==4)//zhou
{
DateTime[0]++
if(DateTime[0]==60)
DateTime[0]=0
write_com(0x80+0x40+11)
display(11,DateTime[0])
} */
if(flag==5) // ri
{
DateTime[3]++
if(DateTime[3]==30)
DateTime[3]=0
write_com(0x80+11)
display1(11,DateTime[3])
}
if(flag==6) //yue
{
DateTime[4]++
if(DateTime[4]==13)
DateTime[4]=0
write_com(0x80+8)
display1(8,DateTime[4])
}
if(flag==7)//nian
{
DateTime[6]++
if(DateTime[6]==100)
DateTime[6]=0
write_com(0x80+5)
display1(5,DateTime[6])
}
}
}
if(flag!=0)
{
if(KEY3==0)
{
DelayMS(5)
if(KEY3==0)
while(!KEY3)
if(flag==1) //miao
{
DateTime[0]--
if(DateTime[0]==-1)
DateTime[0]=0
write_com(0x80+0x40+11)
display(11,DateTime[0])
}
if(flag==2) //fen
{
DateTime[1]--
if(DateTime[1]==-1)
DateTime[1]=0
write_com(0x80+0x40+8)
display(8,DateTime[1])
}
if(flag==3) //shi
{
DateTime[2]--
if(DateTime[2]==-1)
DateTime[2]=0
write_com(0x80+0x40+5)
display(5,DateTime[2])
}
/* if(flag==4)//zhou
{
DateTime[0]++
if(DateTime[0]==60)
DateTime[0]=0
write_com(0x80+0x40+11)
display(11,DateTime[0])
} */
if(flag==5) // ri
{
DateTime[3]--
if(DateTime[3]==-1)
DateTime[3]=0
write_com(0x80+11)
display1(11,DateTime[3])
}
if(flag==6) //yue
{
DateTime[4]--
if(DateTime[4]==-1)
DateTime[4]=0
write_com(0x80+8)
display1(8,DateTime[4])
}
if(flag==7)//nian
{
DateTime[6]--
if(DateTime[6]==-1)
DateTime[6]=0
write_com(0x80+5)
display1(5,DateTime[6])
}
}
}
}
}
void main()
{
Init_LCD()
while(1)
{
EA=1
EX0=1
GetTime()
Format_DateTime(DateTime[6],LCD_DSY_BUFFER1+5) //年
Format_DateTime(DateTime[4],LCD_DSY_BUFFER1+8) //月
Format_DateTime(DateTime[3],LCD_DSY_BUFFER1+11)//日
strcpy(LCD_DSY_BUFFER1+13,WEEK[DateTime[5]]) //周 串拷贝 包含于STRING.H
Format_DateTime(DateTime[2],LCD_DSY_BUFFER2+5) //时
Format_DateTime(DateTime[1],LCD_DSY_BUFFER2+8) //分
Format_DateTime(DateTime[0],LCD_DSY_BUFFER2+11) //秒
Display_LCD_String(0x00,LCD_DSY_BUFFER1)
Display_LCD_String(0x40,LCD_DSY_BUFFER2)
}
}
void int0() interrupt 0
{
Keyscan()
}
#include <reg51.h>typedef unsigned int uint
typedef unsigned char uchar
sbit DS1302_SDA=P1^0
sbit DS1302_SCK=P1^1
sbit DS1302_RST=P1^2
sbit KEY1=P3^0
sbit KEY2=P3^1
sbit KEY3=P3^2
sbit KEY4=P3^3
sbit BEEP=P3^7
uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}
uchar Display_Buffer[]={0x00,0x00,0xbf,0x00,0x00,0xbf,0x00,0x00}
uchar Display_Buffer1[]={0x00,0x00,0xbf,0x00,0x00,0xbf,0x00,0x00}
uchar Bit_CODE[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}
uchar Current_Time[7]
uchar alarm_clock[7]
char Flag=0
char T_OR_A=0
uchar w=0,u=0,v
void delay_ms(uint x)
{
uchar i
while(x--)for(i=0i<120i++)
}
void WriteAByteToDS1302(uchar x)
{
uchar i
for(i=0i<8i++)
{
DS1302_SDA=x&0x01
DS1302_SCK=1
DS1302_SCK=0
x>>=1
}
}
uchar GetAByteFromDS1302(void)
{
uchar i,b=0X00,t
for(i=0i<8i++)
{
b>>=1
t=DS1302_SDA
b|=t<<7
DS1302_SCK=1
DS1302_SCK=0
}
return (b/16*10+b%16)
}
void ResetDS1302(void)
{
DS1302_RST=0
DS1302_SCK=0
DS1302_RST=1
}
uchar ReadData(uchar addr)
{
uchar dat
ResetDS1302()
WriteAByteToDS1302(addr)
dat=GetAByteFromDS1302()
DS1302_SCK=0
DS1302_RST=0
return dat
}
void WriteDS1302(uchar addr,uchar dat)
{
ResetDS1302()
WriteAByteToDS1302(addr)
WriteAByteToDS1302(dat)
DS1302_SCK=0
DS1302_RST=0
}
void SetDS1302(void)
{
uchar i
WriteDS1302(0x8e,0x00)
for(i=0i<7i++)
{
WriteDS1302(0x80+i*2,(Current_Time[i]/10<<4)|(Current_Time[i]%10))
}
WriteDS1302(0x8e,0x80)
}
void GetTime(void)
{
uchar i,addr=0x81
for(i=0i<7i++)
{
Current_Time[i]=ReadData(addr)
addr+=2
}
}
void time0Init(void)
{
TMOD=0x01
TH0=(65536-50000)/256
TL0=(65536-50000)%256
EA=1
ET0=1
TR0=1
}
void ScanKey(void)
{
if(KEY1==0)
{
delay_ms(10)
if(KEY1==0)
{
while(!KEY1)
w=w++
if(w==5)w=1
switch(w)
{
case 1:Flag=1break
case 2:Flag=1 break
case 3:Flag=1 break
case 4:SetDS1302()
Flag=0
break
}
}
}
if(w!=0)
{
if(KEY2==0)
{
delay_ms(10)
if(KEY2==0)
{
while(!KEY2)
switch(w)
{
case 1:Current_Time[0]++break
case 2:Current_Time[1]++break
case 3:Current_Time[2]++break
}
}
}
if(KEY3==0)
{
delay_ms(10)
if(KEY3==0)
{
while(!KEY3)
switch(w)
{
case 1:Current_Time[0]--break
case 2:Current_Time[1]--break
case 3:Current_Time[2]--break
}
}
}
}
if(KEY4==0)
{
delay_ms(10)
if(KEY4==0)
{
while(!KEY4)
u++
if(u==5)u=1
switch(u)
{
case 1:T_OR_A=1
break
case 2:break
case 3:break
case 4:T_OR_A=0break
}
}
}
if(u!=0)
{
if(KEY2==0)
{
delay_ms(10)
if(KEY2==0)
{
while(!KEY2)
switch(u)
{
case 1:alarm_clock[0]++break
case 2:alarm_clock[1]++break
case 3:alarm_clock[2]++break
}
}
}
if(KEY3==0)
{
delay_ms(10)
if(KEY3==0)
{
while(!KEY3)
switch(u)
{
case 1:alarm_clock[0]--break
case 2:alarm_clock[1]--break
case 3:alarm_clock[2]--break
}
}
}
}
}
void Play(uchar t)
{
uchar i
for(i=0i<100i++)
{
BEEP = ~BEEP
delay_ms(t)
}
BEEP = 0
}
void main(void)
{
//uchar i
SetDS1302()
time0Init()
//GetTime()
while(1)
{
if(Flag==0)
GetTime()
Display_Buffer[0]=DSY_CODE[Current_Time[2]/10]
Display_Buffer[1]=DSY_CODE[Current_Time[2]%10]
Display_Buffer[3]=DSY_CODE[Current_Time[1]/10]
Display_Buffer[4]=DSY_CODE[Current_Time[1]%10]
Display_Buffer[6]=DSY_CODE[Current_Time[0]/10]
Display_Buffer[7]=DSY_CODE[Current_Time[0]%10]
//Display_Buffer[0]=DSY_CODE[Current_Time[2]/10]
ScanKey()
Display_Buffer1[0]=DSY_CODE[alarm_clock[2]/10]
Display_Buffer1[1]=DSY_CODE[alarm_clock[2]%10]
Display_Buffer1[3]=DSY_CODE[alarm_clock[1]/10]
Display_Buffer1[4]=DSY_CODE[alarm_clock[1]%10]
Display_Buffer1[6]=DSY_CODE[alarm_clock[0]/10]
Display_Buffer1[7]=DSY_CODE[alarm_clock[0]%10]
if((Current_Time[2]==alarm_clock[2])&&(Current_Time[1]==alarm_clock[1])&&(Current_Time[0]==alarm_clock[0]))//闹钟
Play(1)
}
}
void tiemr0() interrupt 1
{
//if(flag1) j++
uchar i,j
TH0=(65536-50000)/256
TL0=(65536-50000)%256
if(T_OR_A==0)
{
for(i=0i<8i++)
{
P2=Bit_CODE[i]
P0=Display_Buffer[i]
delay_ms(2)
}
}
else
{
for(j=0j<8j++)
{
P2=Bit_CODE[j]
P0=Display_Buffer1[j]
delay_ms(2)
}
}
}
上面是基于DS1302和LED数码管的可调闹钟C语言程序！
欢迎分享，转载请注明来源：内存溢出
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