連線未有錯，用其他數碼管程序正常。想顯示111432然后減下去，可顯示的是452……
#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
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,
0x76,0x79,0x38,0x3f,0};
uchar temp,t0,t1,bai,shi,ge,flag,flag1,change,change1;
uint hou;
void delay(uint);
void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge);
void init();
void main()
{
init();
while(1)
{
if(flag1!=1)
display(1,1,1,bai,shi,ge);
else
display(16,17,18,18,19,20);
}
}
void init()
{ change1=0;
change=0x7f;
hou=432;
temp=0xfe;
P1=temp;
TMOD=0X11;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;
EA=1;
ET0=1;
ET1=1;
TR0=1;
TR1=1;
}
void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge)
{ P0=0x00;
dula=1;
dula=0;
change1=_crol_(change,1);
switch(change1)
{
case 0xfe:P0=table[aa];
break;
case 0xfd:P0=table[bb];
break;
case 0xfb:P0=table[cc];
break;
case 0xf7:P0=table[bai];
break;
case 0xef:P0=table[shi];
break;
case 0xdf:P0=table[ge];
break;
}
change=change1;
wela=1;
wela=0;
dula=1;
dula=0;
P0=0XFF;
delay(5);
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
t0++;
if(flag!=1)
{
if(t0==10)
{
t0=1;
temp=_crol_(temp,1);
P1=temp;
}
}
else
{
if(t0%4==0)
P1=~P1;
if(t0==60)
{
TR0=0;
P1=0XFF;
flag1=1;
}
}
}
void timer1() interrupt 3
{
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;
t1++;
if(t1==2)
{
t1=0;
hou--;
bai=hou/100;
shi=hou%100/10;
ge=hou%10;
if(hou==398)
{
TR0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
flag=1;
t0=0;
P1=0XFF;
TR1=0;
}
}
}
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