C51单片机实现键控流水灯

ID:460340 · 发表于 2019-1-2 18:49

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
#define LED P3
uchar i,flag1,flag2,flag3,flag4;
sbit k1=P2^4;
sbit k2=P2^5;
sbit k3=P2^6;
sbit k4=P2^7;
uchar table1[]={0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xff};
uchar table2[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf};
uchar table3[]={0x7e,0xbd,0xdb,0xe7,0xff};
uchar table4[]={0xaa,0x55};
void delay(uint x)
{
uint i;
while(x--)
for(i=50;i>0;i--);
}
void keyscan()
{
if(k1==0)
{
delay(10);
if(k1==0)
{
flag2=0;
flag3=0;
flag4=0;
flag1=1;
}
}
if(k2==0)
{
delay(10);
if(k2==0)
{
flag1=0;
flag3=0;
flag4=0;
flag2=1;
}
}
if(k3==0)
{
delay(10);
if(k3==0)
{
flag1=0;
flag2=0;
flag4=0;
flag3=1;
}
}
if(k4==0)
{
delay(10);
if(k4==0)
{
flag1=0;
flag2=0;
flag3=0;
flag4=1;
}
}
}
void main()
{
while(1)
{
keyscan();
if(flag1==1)
{
for(i=0;i<16;i++)
{
LED=table1[i];
delay(200);
keyscan();
}
}
if(flag2==1)
{
for(i=0;i<14;i++)
{
LED=table2[i];
delay(300);
keyscan();
}
}
if(flag3==1)
{
for(i=0;i<5;i++)
{
LED=table3[i];
delay(250);
keyscan();
}
}
if(flag4==1)
{
for(i=0;i<2;i++)
{
LED=table4[i];
delay(600);
keyscan();
}
}
}
}

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