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#include <REGX51.H>
sbit tangdoi1=P1^0;
sbit tangdoi2=P1^1;
sbit tangtiso=P1^2;
sbit giamtiso=P1^3;
sbit aled1 = P3^0;
sbit aled2 = P3^1;
sbit aled3 = P3^2;
unsigned char maled[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
unsigned int doi1,doi2,chenhlech;
unsigned long i;
void delay(long time)
{long n;
for(n=0;n<time;n++)
{
;
}
}
void hamquet()
{
//doi1=i/100;
//doi2=(i/10)%10;
//chenhlech=i%10;
aled1=1;
P2=maled[i/100];
delay(50);
aled1=0;
P2=0xff;
aled2=1;
P2=maled[(i/10)%10];
delay(50);
aled2=0;
P2=0xff;
aled3=1;
P2=maled[i%10];
delay(50);
aled3=0;
P2=0xff;
}
void main()
{i=0;
while(1)
{hamquet();
if((tangdoi1==0)&&(tangdoi2==1))
{delay(20);
while(!tangdoi1);
i=i+100;
//doi1++;
}
if((tangdoi1==1)&&(tangdoi2==0))
{delay(20);
while(!tangdoi2);
i=i+10;
//doi2++;
}
if((tangtiso==0)&(giamtiso==1))
{delay(20);
while(!tangtiso);
i=i+1;
}
if((tangtiso=1)&&(giamtiso==0))
{delay(20);
while(!giamtiso);
i=i-1;
}
}
}
Tìm hiểu thêm về minhthongsr
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