#include<reg51.h>
sbit lsa=P2^2;
sbit lsb=P2^3;
sbit lsc=P2^4;
#define uint unsigned int
#define uchar unsigned char
#define duanxuan P0
#define keyboard P1
typedef unsigned int u16; //對數據類型進行聲明定義
typedef unsigned char u8;
u8 KeyValue; //用來存放讀取到的鍵值
uchar xianshi[]={0,0};
void DigDisplay()
{
uchar k;
for(k=0;k<2;k++)
{
switch(k) //位選，選擇點亮的數碼管，
{
case(0):
lsa=0;lsb=0;lsc=0; break;//顯示第0位
case(1):
lsa=1;lsb=0;lsc=0; break;//顯示第1位
}
}
}
int code zxm[16]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
int x,y;
void delay(int i)
{
while(i--);
}
void keyproc(void)
{
int a=0;
/*P1=0x0f;
if(P1!=0x0f)
{
delay(1000);
if(P1!=0x0f)
{
P1=0x0f;
switch(P1)
{
case(0x07):y=1;break;
case(0x0b):y=2;break;
case(0x0d):y=3;break;
case(0x0e):y=4;break;
}
}
P1=0xf0;
switch(P1)
{
case(0x70):y=1;break;
case(0xb0):y=2;break;
case(0xd0):y=3;break;
case(0xe0):y=4;break;
}*/
keyboard=0x0f;
if(keyboard!=0x0f)//讀取按鍵是否按下
{
delay(1000);//延時10ms進行消抖
if(keyboard!=0x0f)//再次檢測鍵盤是否按下
{
//測試列
keyboard=0X0F;
switch(keyboard)
{
case(0X07): KeyValue=0;break;
case(0X0b): KeyValue=1;break;
case(0X0d): KeyValue=2;break;
case(0X0e): KeyValue=3;break;
}
//測試行
keyboard=0XF0;
switch(keyboard)
{
case(0X70): KeyValue=KeyValue;break;
case(0Xb0): KeyValue=KeyValue+4;break;
case(0Xd0): KeyValue=KeyValue+8;break;
case(0Xe0): KeyValue=KeyValue+12;break;
}
while((a<50)&&(keyboard!=0xf0))
{
delay(1000);
a++;
}
}
}
}
int main()
{
lsa=0;
lsb=0;
lsc=0;
//duanxuan=0x00;
while(1)
{
uint jishu;
keyproc();
DigDisplay();
xianshi[0]=zxm[KeyValue/10];
xianshi[1]=zxm[KeyValue%10];
jishu++;
if(jishu==2)
jishu=0;
P0=xianshi[jishu];
delay(10);
//duanxuan=zxm[(x-1)*4+y-1];
}
// return 0;
}
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