//8位共陰數碼管間隔0.5S循環(huán)左移依次顯示 12345678、23456781、34567812 ...
//2011 12 09 E:\DPJ\OTHER\1\8位左移\8位左移.C
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar time,i,temp,temp1=0xfe;
uchar code tab[ ]={0x06,0x5B,0x4F,0x66,
0x6D,0x7D,0x07,0x7F};
bit flag;
sbit P2_0=P2^0;
sbit P2_1=P2^1;
sbit P2_2=P2^2;
sbit P2_3=P2^3;
sbit P2_4=P2^4;
sbit P2_5=P2^5;
sbit P2_6=P2^6;
sbit P2_7=P2^7;
void delay(int ms)
{
uchar j;
while(ms--)
for(j=0;j<123;j++);
}
void T0INTinit()
{
TMOD=0x01;
EA=1;
ET0=1;
TR0=1;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
}
void disp();
void main()
{
T0INTinit();
temp=0xfe;
while(1)
{
temp=temp1;
disp();
if(flag)
{
flag=0;
temp1=_cror_(temp1,1);
}
}
}
void disp()
{
P0=tab[0];
P2=temp;
delay(1);
P2=0xff;
temp=_crol_(temp,1);
P0=tab[1];
P2=temp;
delay(1);
P2=0xff;
P0=tab[2];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
P0=tab[3];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
P0=tab[4];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
P0=tab[5];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
P0=tab[6];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
P0=tab[7];
temp=_crol_(temp,1);
P2=temp;
delay(1);
P2=0xff;
}
void T0INT() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
time++;
if(time==10)
{
time=0;
flag=1;
}
}
2012 01 06 更新。原來的寫得不好,重寫。
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