|
|
矩陣鍵盤顯示在數(shù)碼管上面
11.jpg (291.54 KB, 下載次數(shù): 58)
下載附件
2021-2-1 13:47 上傳
04-02.zip
(800 Bytes, 下載次數(shù): 10)
2021-2-1 13:49 上傳
點(diǎn)擊文件名下載附件
方式1 下載積分: 黑幣 -5
04-01.zip
(815 Bytes, 下載次數(shù): 9)
2021-2-1 13:48 上傳
點(diǎn)擊文件名下載附件
方式2 下載積分: 黑幣 -5
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit d1=P1^0;
sbit key1=P3^4;
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table []={0x3f,0x06,
0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delay(uint z);
uchar num,temp;
void display (uchar num)
{
P0=table[num];
dula=1;
dula=0;
}
void matrixkeyscan()
{
uchar temp,key;
P3=0xfe;
temp=P3;
temp=temp&0xf0;
{
delay(10);
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
temp=P3;
switch(temp)
{
case 0xee:
key=0;
break;
case 0xde:
key=1;
break;
case 0xbe:
key=2;
break;
case 0x7e:
key=3;
break;
}
while (temp!=0xf0)
{
temp=P3;
temp=temp&0xf0;
}
display(key);
}
}
P3=0xfd;
temp=P3;
temp=temp&0xf0;
{
delay(10);
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
temp=P3;
switch(temp)
{
case 0xed:
key=4;
break;
case 0xdd:
key=5;
break;
case 0xbd:
key=6;
break;
case 0x7d:
key=7;
break;
}
while (temp!=0xf0)
{
temp=P3;
temp=temp&0xf0;
}
display(key);
}
}
P3=0xfb;
temp=P3;
temp=temp&0xf0;
{
delay(10);
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
temp=P3;
switch(temp)
{
case 0xeb:
key=8;
break;
case 0xdb:
key=9;
break;
case 0xbb:
key=10;
break;
case 0x7b:
key=11;
break;
}
while (temp!=0xf0)
{
temp=P3;
temp=temp&0xf0;
}
display(key);
}
}
P3=0xf7;
temp=P3;
temp=temp&0xf0;
{
delay(10);
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
temp=P3;
switch(temp)
{
case 0xe7:
key=12;
break;
case 0xd7:
key=13;
break;
case 0xb7:
key=14;
break;
case 0x77:
key=15;
break;
}
while (temp!=0xf0)
{
temp=P3;
temp=temp&0xf0;
}
display(key);
}
}
}
void main()
{
P0=0;
dula=1;
dula=0;
P0=0xc0;
wela=1;
wela=0;
while(1)
{
matrixkeyscan();
}
}
void delay (uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
//矩陣鍵盤 顯示0-16 方式2
|
|
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
