|
发表于 2021-1-6 14:49:09
|
显示全部楼层
还可以这样:
#include<reg51.h>
#define GPIO_DIG P0
sbit LSA=P2^2;
sbit LSB=P2^3;
sbit LSC=P2^4;
unsigned char code DIG_CODE[17]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
unsigned char DisplayData[8]={0,0,0,0,0,0,0,0};
void DigDisplay(unsigned char k);
void main(void)
{
unsigned int i,j,k;
while (1)
{
for(i=0;i<8;i++)
{
DisplayData[i]=DIG_CODE[i];
}
for (j=0;j<8;j++)
{
for (k=0;k<1000;k++)
{
DigDisplay(j);
}
}
for(i=0;i<j;i++)
{
DisplayData[i]=0;
}
for (k=0;k<1000;k++)
{
DigDisplay(8);
}
}
}
void DigDisplay(unsigned char k)
{
unsigned char i,j;
for(i=0;i<k+1;i++)
{
switch(i)
{
case(0):
LSA=0;LSB=0;LSC=0; break;
case(1):
LSA=1;LSB=0;LSC=0; break;
case(2):
LSA=0;LSB=1;LSC=0; break;
case(3):
LSA=1;LSB=1;LSC=0; break;
case(4):
LSA=0;LSB=0;LSC=1; break;
case(5):
LSA=1;LSB=0;LSC=1; break;
case(6):
LSA=0;LSB=1;LSC=1; break;
case(7):
LSA=1;LSB=1;LSC=1; break;
}
GPIO_DIG=DisplayData[i];
j=10;
while(j--);
GPIO_DIG=0x00;
}
}
程序缺点是先头显示的内容时间短,后面时间长一点点
|
|