#include <reg52.h>
#include <intrins.h>
unsigned char disp[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80};
sbit CLK=P3^0;
sbit SDA1=P1^0;
sbit SDA2=P1^1;
sbit SDA3=P1^2;
sbit SDA4=P1^3;
sbit SDA5=P1^4;
sbit SDA6=P1^5;
sbit SDA7=P1^6;
sbit SDA8=P1^7;
void DelayUs2x(unsigned char t)
{while(t--);
}
void DelayMs(unsigned char t)
{while(t--)
{DelayUs2x(10);
DelayUs2x(10);
}
}
void send(unsigned char a)
{
unsigned char i;
for(i=0;i<8;i++)
{
if(_crol_(a,i)&0x80)
{SDA1=1;
SDA2=1;
SDA3=1;
SDA4=1;
SDA5=1;
SDA6=1;
SDA7=1;
SDA8=1;
}
else{
SDA1=0;
SDA2=0;
SDA3=0;
SDA4=0;
SDA5=0;
SDA6=0;
SDA7=0;
SDA8=0;
}
CLK=0;
CLK=1;
}
}
void led1(void)
{
unsigned char x;
P2=0x01;
x=disp[2];
send(x);
}
void led2(void)
{
unsigned char x;
P2=0x02;
x=disp[0];
send(x);
}
void led3(void)
{
unsigned char x;
P2=0x04;
x=disp[1];
send(x);
}
void led4(void)
{
unsigned char x;
P2=0x08;
x=disp[7];
send(x);
}
void led5(void)
{
unsigned char x;
P2=0x10;
x=disp[0];
send(x);
}
void led6(void)
{
unsigned char x;
P2=0x20;
x=disp[5];
send(x);
}
void led7(void)
{
unsigned char x;
P2=0x40;
x=disp[1];
send(x);
}
void led8(void)
{
unsigned char x;
P2=0x80;
x=disp[2];
send(x);
}
void main()
{
while(1)
{
led1();
DelayMs(10);
led2();
DelayMs(10);
led3();
DelayMs(10);
led4();
DelayMs(10);
led5();
DelayMs(10);
led6();
DelayMs(10);
led7();
DelayMs(10);
led8();
DelayMs(10);
}
} |
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