2x2行列式键盘扫描程序
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delay1(100);
feng=1;
break;
case 0xeb:
led4=~led4;
feng=0;
delay1(100);
feng=1;
break;
}
while(templ!=0xf0)
{
templ=P3;
templ=templ&0xf0;
}
}
}
P3=0xfe;
templ=P3;
templ=templ&0xf0;
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
delay1(10);
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
templ=P3;
switch(templ)
{
case 0xbb:
led6=~led6;
feng=0;
case 0xee:
led2=~led2;
feng=0;
delay1(100);
feng=1;
break;
}
while(templ!=0xf0)
{
templ=P3;
templ=templ&0xf0;
}
}
}
}
}
while(templ!=0xf0)
{
பைடு நூலகம்delay1(10);
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
templ=P3;
switch(templ)
{
case 0xbe:
led8=~led8;
feng=0;
delay1(100);
feng=1;
break;
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P3^5;
sbit dula=P2^6;
sbit wela=P2^7;
sbit led2=P1^1;
sbit led4=P1^3;
sbit led6=P1^5;
sbit led8=P1^7;
sbit feng=P2^3;
uchar templ;
void delay1(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void main()
{
dula=1;
P0=0;
dula=0;
while(1)
{
P3=0xfb;
feng=1;
break;
case 0xeb:
led4=~led4;
feng=0;
delay1(100);
feng=1;
break;
}
while(templ!=0xf0)
{
templ=P3;
templ=templ&0xf0;
}
}
}
P3=0xfe;
templ=P3;
templ=templ&0xf0;
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
delay1(10);
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
templ=P3;
switch(templ)
{
case 0xbb:
led6=~led6;
feng=0;
case 0xee:
led2=~led2;
feng=0;
delay1(100);
feng=1;
break;
}
while(templ!=0xf0)
{
templ=P3;
templ=templ&0xf0;
}
}
}
}
}
while(templ!=0xf0)
{
பைடு நூலகம்delay1(10);
templ=P3;
templ=templ&0xf0;
while(templ!=0xf0)
{
templ=P3;
switch(templ)
{
case 0xbe:
led8=~led8;
feng=0;
delay1(100);
feng=1;
break;
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P3^5;
sbit dula=P2^6;
sbit wela=P2^7;
sbit led2=P1^1;
sbit led4=P1^3;
sbit led6=P1^5;
sbit led8=P1^7;
sbit feng=P2^3;
uchar templ;
void delay1(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void main()
{
dula=1;
P0=0;
dula=0;
while(1)
{
P3=0xfb;