使用15单片机8位DS1302时钟，共阳数码管直驱不用三极管

BXYYHAN · 发表于 2019-12-16 14:17

数码管段选接P2，位选接P1.加上按键，蜂鸣器，1302，正好使用了单片机全部IO口。如果亮度不足，可以在P1口加245或573扩流。
#include"ds1302.h"
#include"e2prom.h"
#define uchar unsigned char
#define uint unsigned int

sbit k1=P3^0;
sbit k2=P3^1;
sbit k3=P3^2;
sbit k4=P3^3;

sbit beep=P3^4;

bit S_flag;
uchar k1num,k4num,Al_num,Sh_num,num,shi,fen,miao;
char A_shi,A_fen,A_miao,S_shi,S_fen,S_miao;
uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,
0x82,0xf8,0x80,0x90,0xbf,0xff,0x88,0xc7,0x89};
void delayms(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void Time0_init()
{
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void Display(uchar shi1,uchar shi2,uchar fen1,uchar fen2,uchar miao1,uchar miao2)
{
P1=0x01;
P2=table[shi1];
delayms(2);

P1=0x02;
P2=table[shi2];
delayms(2);
P2=table[11];//消隐

P1=0x04;
P2=table[10];//间隔
delayms(2);
P2=table[11];//消隐

P1=0x08;
P0=table[fen1];
delayms(2);

P1=0x10;
P2=table[fen2];
delayms(2);
P2=table[11];//消隐

P1=0x20;
P2=table[10];//间隔
delayms(2);
P2=table[11];//消隐

P1=0x40;
P2=table[miao1];
delayms(2);

P1=0x80;
P2=table[miao2];
delayms(2);
P2=table[11];//消隐

}
void Shan_Display()
{
switch(k4num)
{
case 1: //开闹钟时间显示
switch(Al_num)
{
case 1: //小时闪烁
if(S_flag)
Display(11,11,A_fen/10,A_fen%10,12,13);
else
Display(A_shi/10,A_shi%10,A_fen/10,A_fen%10,12,13);
break;
case 2: //分钟闪烁
if(S_flag)
Display(A_shi/10,A_shi%10,11,11,12,13);
else
Display(A_shi/10,A_shi%10,A_fen/10,A_fen%10,12,13);
break;
default :
Display(A_shi/10,A_shi%10,A_fen/10,A_fen%10,12,13);
}
break;
case 2: //关闹钟时间显示
switch(Sh_num)
{
case 1: //小时闪烁
if(S_flag)
Display(11,11,S_fen/10,S_fen%10,5,14);
else
Display(S_shi/10,S_shi%10,S_fen/10,S_fen%10,5,14);
break;
case 2: //分钟闪烁
if(S_flag)
Display(S_shi/10,S_shi%10,11,11,5,14);
else
Display(S_shi/10,S_shi%10,S_fen/10,S_fen%10,5,14);
break;
default : Display(S_shi/10,S_shi%10,S_fen/10,S_fen%10,5,14);
}
break;
default: //当前时间显示
switch(k1num)
{
case 1: //小时闪烁
if(S_flag)
Display(11,11,now[1]/16,now[1]%16,now[0]/16,now[0]%16);
else
Display(now[2]/16,now[2]%16,now[1]/16,now[1]%16,now[0]/16,now[0]%16);
break;
case 2: //分钟闪烁
if(S_flag)
Display(now[2]/16,now[2]%16,11,11,now[0]/16,now[0]%16);
else
Display(now[2]/16,now[2]%16,now[1]/16,now[1]%16,now[0]/16,now[0]%16);
break;
case 3: //秒闪烁
if(S_flag)
Display(now[2]/16,now[2]%16,now[1]/16,now[1]%16,11,11);
else
Display(now[2]/16,now[2]%16,now[1]/16,now[1]%16,now[0]/16,now[0]%16);
break;
default : Display(now[2]/16,now[2]%16,now[1]/16,now[1]%16,now[0]/16,now[0]%16);
}

}
}
void Mode_keyscan()
{
if(k4==0)
{
delayms(10);
if(k4==0)
{
k4num++;
if(k4num>=3)k4num=0;
switch(k4num)
{
case 1:k1num=0;
break;
case 2:Al_num=0;
break;
default:Sh_num=0;
}

while(!k4);

}

}
}
void Move_keyscan()
{
if(k1==0)
{
delayms(10);
if(k1==0)
{
if(k4num==0)
{
k1num++;
if(k1num>=4)k1num=0;
}
else if(k4num==1)
{
Al_num++;
if(Al_num>=3)Al_num=0;
}
else if(k4num==2)
{
Sh_num++;
if(Sh_num>=3)Sh_num=0;
}
while(!k1);

}

}
}
void Add_keyscan()
{
if(k2==0)
{
delayms(10);
if(k2==0)
{
switch(k4num)
{
case 1:
switch(Al_num)
{
case 1:
A_shi++;
if(A_shi>=24)
A_shi=0;
while(!k2);
SectorErase(0x2000);
byte_write(0x2000,A_shi);
break;
case 2:
A_fen++;
if(A_fen>=60)
A_fen=0;
while(!k2);
SectorErase(0x2200);
byte_write(0x2200,A_fen);
break;

}
break;
case 2:
switch(Sh_num)
{
case 1:
S_shi++;
if(S_shi>=24)
S_shi=0;
while(!k2);
SectorErase(0x2400);
byte_write(0x2400,S_shi);
break;
case 2:
S_fen++;
if(S_fen>=60)
S_fen=0;
while(!k2);
SectorErase(0x2600);
byte_write(0x2600,S_fen);
break;

}
break;
default:
switch(k1num)
{
uchar dat ;
case 1:
dat=DS1302_ReadData(0x85);
shi=dat+1;
if((shi&0x0f)>9)shi=shi+6;
if(shi>=0x24)shi=0;
while(!k2);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x84,shi);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
case 2:
dat=DS1302_ReadData(0x83);
fen=dat+1;
if((fen&0x0f)>9)fen=fen+6;
if(fen>=0x60)fen=0;
while(!k2);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x82,fen);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
case 3:
dat=DS1302_ReadData(0x81);
miao=dat+1;
if((miao&0x0f)>9)miao=miao+6;
if(miao>=0x60)miao=0;
while(!k2);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x80,miao);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
}
break;

}
}

}

}
void Reduce_keyscan()
{
if(k3==0)
{
delayms(10);
if(k3==0)
{
switch(k4num)
{
case 1:
switch(Al_num)
{
case 1:
A_shi--;
if(A_shi==-1)
A_shi=23;
while(!k3);
SectorErase(0x2000);
byte_write(0x2000,A_shi);
break;
case 2:
A_fen--;
if(A_fen==-1)
A_fen=59;
while(!k3);
SectorErase(0x2200);
byte_write(0x2200,A_fen);
break;
}
break;
case 2:
switch(Sh_num)
{
case 1:
S_shi--;
if(S_shi==-1)
S_shi=23;
while(!k3);
SectorErase(0x2400);
byte_write(0x2400,S_shi);
break;
case 2:
S_fen--;
if(S_fen==-1)
S_fen=59;
while(!k3);
SectorErase(0x2600);
byte_write(0x2600,S_fen);
break;
}
break;
default:
switch(k1num)
{
uchar dat ;
case 1:
dat=DS1302_ReadData(0x85);
if(dat==0)
shi=0x23;
else
shi=dat-1;
if((shi&0x0f)>9)shi=shi-6;
while(!k3);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x84,shi);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
case 2:
dat=DS1302_ReadData(0x83);
if(dat==0)
fen=0x59;
else
fen=dat-1;
if((fen&0x0f)>9)fen=fen-6;
while(!k3);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x82,fen);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
case 3:
dat=DS1302_ReadData(0x81);
if(dat==0)
miao=0x59;
else
miao=dat-1;
if((miao&0x0f)>9)miao=miao-6;
while(!k3);
DS1302_WriteData(0x8e, 0x00);//允许写操作
DS1302_WriteData(0x80,miao);
DS1302_WriteData(0x8e, 0x80);//写保护
break;
}
break;
}
}

}

}
void AL_SHRead()
{
A_shi=byte_read(0x2000);
A_fen=byte_read(0x2200);
S_shi=byte_read(0x2400);
S_fen=byte_read(0x2600);
}
void AL_SHCheck()
{
uchar j;
if(((now[2]/16-A_shi/10)|(now[2]%16-A_shi%10)|(now[1]/16-A_fen/10)|(now[1]%16-A_fen%10))==0)
{

for(j=0;j<5;j++)
{
beep=0;
delayms(500);
beep=1;
delayms(500);
}

}
else if(((now[2]/16-S_shi/10)|(now[2]%16-S_shi%10)|(now[1]/16-S_fen/10)|(now[1]%16-S_fen%10))==0)
{

}

}
void main()
{
Time0_init();
DS1302_Initial();
// DS1302_SetTime(init);
AL_SHRead();
while(1)
{
DS1302_GetTime(now);
Mode_keyscan();
Move_keyscan();
Add_keyscan();
Reduce_keyscan();
Shan_Display();
AL_SHCheck();
}
}
void time0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
num++;
if(num>=10)
{
num=0;
S_flag=!S_flag;
}

}

treeyan · 发表于 2019-12-17 22:09

哇噢，辛苦了

3AG1 · 发表于 2019-12-18 14:23

直接用单片机驱动多位LED数码管，会不会功耗过大？

QDHAM · 发表于 2019-12-19 10:05

收藏了

xunfei123 · 发表于 2019-12-27 22:33

都是好玩

butterflyam · 发表于 2019-12-28 09:32

精度怎么样？

BXYYHAN · 发表于 2019-12-29 15:42

3AG1 发表于 2019-12-18 14:23
直接用单片机驱动多位LED数码管，会不会功耗过大？

不会的，实验证明，把单片机的强推挽模式打开后，驱动0.8寸数码管亮度完全够用，

leezll · 发表于 2020-5-20 02:59

直接用单片机驱动多位LED数码管，会不会功耗过大？

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使用15单片机8位DS1302时钟，共阳数码管直驱不用三极管

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