#include <STC12C5A.h>
#define uchar unsigned char
uchar j,k,i,a,A1,A2,second;
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delay(uchar i)
{
for(j=i;j>0;j--)
for(k=125;k>0;k--);
}
void display(uchar sh_c,uchar g_c)
{
dula=0;
P0=table[sh_c];
dula=1;
dula=0;
wela=0;
P0=0xfe;
wela=1;
wela=0;
delay(50);
P0=table[g_c];
dula=1;
dula=0;
P0=0xfd;
wela=1;
wela=0;
delay(50);
}
void main(void)
{
while(1)
{
second++;
if(second==60)
second=0;
A1=second/10;
A2=second%10;
for(a=50;a>0;a--)
{ display(A1,A2);};
}
}
#define uchar unsigned char
uchar j,k,i,a,A1,A2,second;
sbit dula=P2^6; //定义dula为p2.6
sbit wela=P2^7;
//0-9的led显示码
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
//延时
void delay(uchar i)
{
for(j=i;j>0;j--)
for(k=125;k>0;k--);
}
//把数字十位和个位通过分时复用的方法显示在led中,先显示十位,再显示个位,数据位都是Po口,p2.6,p2.7可以理解为片选...中间加了个0xfe,0xfd,是想只单独显示十位和个位,0xfe,0xfd表示其中有一段跟别人不一样的,就一行或一坚,也可能反转...
void display(uchar sh_c,uchar g_c)
{
dula=0;
P0=table[sh_c];
dula=1;
dula=0;
wela=0;
P0=0xfe;
wela=1;
wela=0;
delay(50);
P0=table[g_c];
dula=1;
dula=0;
P0=0xfd;
wela=1;
wela=0;
delay(50);
}
void main(void)
{
while(1)
{
second++;
if(second==60)
second=0;//保证数字在0-59,超过就置为0
A1=second/10;//计算十位
A2=second%10;//计算个位
for(a=50;a>0;a--)
{ display(A1,A2);};//调用函数在led上显示十位和个位
}
}