8位串行数码管模块__设计原理图及测试程序

//按键控制//
void bcon(void)
{if(P3_5==0)
{delay(100);
if(P3_5==0)
{second=0;
while(P3_5==0);

}
}
disbuf[0]=second%10;
disbuf[1]=second/10;

if(P3_6==0)
{delay(100);
if(P3_6==0)
{minute++;
while(P3_6==0);
if(minute==60)
{minute=0;
}
}
}
disbuf[3]=minute%10;
disbuf[4]=minute/10;

if(P3_7==0)
{delay(100);
if(P3_7==0)
{hour++;
while(P3_7==0);
if(hour==24)
{hour=0;
}
}
}

disbuf[6]=hour%10;
disbuf[7]=hour/10;

disbuf[0]=second%10;
disbuf[1]=second/10;
disbuf[3]=minute%10;
disbuf[4]=minute/10;
disbuf[6]=hour%10;
disbuf[7]=hour/10;

}
//键盘控制//

//主函数//

void main(void)
{
TMOD=0x02;
TH0=0x06;
TL0=0x06;
TR0=1;
ET0=1;
EA=1;

while(1)
{
bcon();
sdata();
out();

}
while(1);

}
//主函数//

//中断程序//

void t0(void) interrupt 1 using 0
{ tcount++;

if(tcount==4000)
{tcount=0;
second++;

if(second==60)
{second=0;
minute++;

if(minute==60)
{minute=0;
hour++;

if(hour==24)
{hour=0;
}
}
}
}
}

//中断程序//