#include <regx52.h>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit beep=P2^3;
sbit DU = P2^6;
sbit WE = P2^7;
sbit key_s2 = P3^0;
uchar num;
uchar KeyValue = 20;
uchar temp;
uchar code tabel[]= {
//0 1 2 3 4 5 6 7 8
0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F,
//9 A B C D E F H L
0x6F, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71, 0x76, 0x38,
//n u - ??
0x37, 0x3E, 0x40, 0x00 };
void delay(uint z)
{
uint x,y;
for(x = z; x > 0; x--)
for(y = 114; y > 0 ; y--);
}
void KeyScan()
{
P3 = 0XF0;
if(P3 != 0XF0)
{
delay(10);
if(P3 != 0XF0)
{
switch(P3)
{
case 0xe0: KeyValue = 0; break;
case 0xd0: KeyValue = 1; break;
case 0xb0: KeyValue = 2; break;
case 0x70: KeyValue = 3; break;
}
P3 = 0X0F;
switch(P3)
{
case 0x0e: KeyValue = KeyValue; break;
case 0x0d: KeyValue = KeyValue + 4; break;
case 0x0b: KeyValue = KeyValue + 8; break;
case 0x07: KeyValue = KeyValue + 12; break;
}
while(P3 != 0X0F);
}
}
P3 = 0XFF;
if(P3 != 0XFF)
{
delay(10);
if(P3 != 0XFF)
{
switch(P3)
{
case 0xfe: KeyValue = 16; break;
case 0xfd: KeyValue = 17; break;
case 0xfb: KeyValue = 18; break;
case 0xf7: KeyValue = 19; break;
}
while(P3 != 0XFF);
}
}
}
void Template()
{
if(KeyValue==0)
{
num=0;
}
else if(KeyValue==1)
{
num=1;
}
else if(KeyValue==2)
{
num=2;
}
else if(KeyValue==3)
{
num=3;
}
else if(KeyValue==4)
{
num=4;
}
else if(KeyValue==5)
{
num=5;
}
else if(KeyValue==6)
{
num=6;
}
else if(KeyValue==7)
{
num=7;
}
else if(KeyValue==8)
{
num=8;
}
else if(KeyValue==9)
{
num=9;
}
else if(KeyValue==10)
{
num=10;
}
else if(KeyValue==11)
{
num=11;
}
else if(KeyValue==12)
{
num=12;
}
else if(KeyValue==13)
{
num=13;
}
else if(KeyValue==14)
{
num=14;
}
else if(KeyValue==15)
{
num=15;
}
if(KeyValue==16)
{
if(num!=9) num++;
if(4<KeyValue&&KeyValue<9)
{
temp=_crol_(temp,1);
P1=temp;
beep=~beep;
delay(500);
}
}
else if(KeyValue=17)
{
num=num-1;
if(num==0);num=0;
}
else if(KeyValue=18)
{
num=num+1;
if(num>9)num=9;
}
else if(KeyValue=19)
{
num=0;
}
KeyValue=49;
}
void main()
{
temp=0xf0;
P1=temp;
WE = 1;
P0 = 0XFE;
WE = 0;
DU = 1;
while(1)
{
KeyScan();
Template();
P0 = tabel[num];
}
}
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