#include "reg52.h"
typedef unsigned int u16;
typedef unsigned char u8;
sbit LSA=P2^2;
sbit LSB=P2^3;
sbit LSC=P2^4;
sbit k1=P3^1;
sbit k2=P3^0;
u8 code smgduan[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
#define KEY1 1
#define KEY2 2
char keynum;
u8 DisplayData[8];
void delay(u16 i)
{
while(i--);
}
u8 KeyScan(u8 mode)
{
static u8 keyen=1;
if(mode==1)
{
keyen=1;
}
if(keyen==1&&(k1==0||k2==0))
{
delay(1000);
keyen=0;
if(k1==0)return KEY1;
else if(k2==0)return KEY2;
}
else if(k1==1&&k2==1)
{
keyen=1;
}
return 0;
}
void DigDisplay()
{
u8 i;
for(i=0;i<8;i++)
{
switch(i)
{
case(0):
LSA=0;LSB=0;LSC=0; break;
case(1):
LSA=1;LSB=0;LSC=0; break;
case(2):
LSA=0;LSB=1;LSC=0; break;
case(3):
LSA=1;LSB=1;LSC=0; break;
case(4):
LSA=0;LSB=0;LSC=1; break;
case(5):
LSA=1;LSB=0;LSC=1; break;
case(6):
LSA=0;LSB=1;LSC=1; break;
case(7):
LSA=1;LSB=1;LSC=1; break;
}
P0=DisplayData[ i];
delay(10);
P0=0x00;
}
}
void scaler(){
DisplayData[0]=smgduan[keynum/10000%1000];
DisplayData[1]=smgduan[keynum/1000%100];
DisplayData[2]=smgduan[keynum/100%10];
DisplayData[3]=smgduan[keynum/10%10];
DisplayData[4]=smgduan[keynum%10];
}
void increase1(u8 key){
u8 i;
if(key==1){
for(i=0;i<6;i++){
switch(i){
case 0: keynum+=1000;delay(2500);
case 1: keynum+=1000;delay(2500);
case 2: keynum+=1000;delay(2500);break;
case 3: keynum+=2000;delay(2500);
case 4: keynum+=2000;delay(2500);break;
case 5: keynum=0; break;
}
}
}else if(key==2){
for(i=0;i<6;i++){
switch(i){
case 0: keynum+=1234;delay(2500);
case 1: keynum+=1234;delay(2500);break;
case 2: keynum+=999;delay(2500);
case 3: keynum+=999;delay(2500);
case 4: keynum+=999;delay(2500);break;
case 5: keynum=0; break;
}
}
}
}
void datapros()
{
u8 key=KeyScan(0);
switch(key){
case 1: increase1(key); break;
case 2: increase1(key); break;
}
scaler();
}
void main()
{
while(1)
{
datapros();
DigDisplay();
}
}
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