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標題:
51單片機數碼管程序
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作者:
111shws
時間:
2020-11-12 20:27
標題:
51單片機數碼管程序
#include<reg52.h>
typedef unsigned char uchar;
typedef unsigned int uint;
sbit LSA = P2^2;
sbit LSB = P2^3;
sbit LSC = P2^4;
uchar time [] ={2,0,2,0,1,1,0,7};
uchar code smgduan[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};//顯示0~F的值
//延時函數,i=1;延時大約等于1us
void delay(uint i)
{
while(i--);
}
void DigDisplay()
{
uchar i;
for(i= 0 ; i<8;i++)
{
switch(i)
{
case 7:
LSA=0; LSB=0; LSC=0; break; //顯示1位;
case 6:
LSA=1; LSB=0; LSC=0; break;//顯示2位;
case 5:
LSA=0; LSB=1; LSC = 0;break;//顯示3位
case 4:
LSA=1; LSB=1; LSC=0; break; //顯示4位;
case 3:
LSA=0; LSB=0; LSC=1; break;//顯示5位;
case 2:
LSA=1; LSB=0; LSC =1;break;//顯示6位
case 1:
LSA=0; LSB=1; LSC=1; break; //顯示7位;
case 0:
LSA=1; LSB=1; LSC=1; break;//顯示8位;
}
P0 = smgduan[time[i]];
delay(10000);
P0 = 0X00;
}
}
void main ()
{
while(1)
{
DigDisplay();
}
}
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