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#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit we=P2^7;
sbit du=P2^6;
sbit S2=P3^0;
sbit S3=P3^1;
sbit S4=P3^2;
sbit S5=P3^3;
uchar count;
uint timer_count;
uchar code leddata[]={
0x3F, //"0"
0x06, //"1"
0x5B, //"2"
0x4F, //"3"
0x66, //"4"
0x6D, //"5"
0x7D, //"6"
0x07, //"7"
0x7F, //"8"
0x6F, //"9"
0x77, //"A"
0x7C, //"B"
0x39, //"C"
0x5E, //"D"
0x79, //"E"
0x71, //"F"
0x76, //"H"
0x38, //"L"
0x37, //"n"
0x3E, //"u"
0x73, //"P"
0x5C, //"o"
0x40, //"-"
0x00, //熄灭
0x00 //自定义
};
void delay(uint z)
{
uint x,y;
for(x = z; x > 0; x--)
for(y = 114; y > 0 ; y--);
}
void timer_init()
{
TMOD=0x01;
TH0=0x4b;
TL0=0xfd;
TR0=1;
}
void display(uint i)
{
char ge,shi,bai,qian;
qian=i/1000;
bai=i%1000/100;
shi=i%1000%100/10;
ge=i%1000%100%10;
du=1;
P0=leddata[qian];
du=0;
P0=0xff;
we=1;
P0=0xfe;
we=0;
delay(1);
du=1;
P0=leddata[bai];
du=0;
P0=0xff;
we=1;
P0=0xfd;
we=0;
delay(1);
du=1;
P0=leddata[shi];
du=0;
P0=0xff;
we=1;
P0=0xfb;
we=0;
delay(1);
du=1;
P0=leddata[ge];
du=0;
P0=0xff;
we=1;
P0=0xf7;
we=0;
delay(1);
}
void main()
{
timer_init();
while(1)
{
if(TF0==1)
{
TF0=0;
TH0=0x4b;
TL0=0xfd;
count++;
}
if(count==2)
{
count=0;
timer_count++;
if(timer_count>=9999)
timer_count=0;
display(timer_count);
}
}
}
这是从0开始，每次增加1，一直在9999循环。 为什么前3位（千，百，十位）会出现闪烁情况，求高手帮忙看看。
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