51单片机自动售水机程序 -

#include "stc.h"
#include "button.h"
#include "smg.h"
#include "AT24C02.h"
sbit led1=P0^0;
sbit bell=P0^6;
sbit relay=P0^4;
unsigned char flag_s7,flag_s6;
int money=0,amount=0;//价格容量
unsigned char count,flag_count;
unsigned char state; //控制数码管两种显示界面按键控制
#define EXE_EN P2 = (P2&0X1F)|0XA0; P2 &= 0X1F
void init_time0() //1微妙加1
{
TMOD=0x01;
TH0=(65536-50000)/256;//定时50ms
TL0=(65536-50000)%256;
ET0=1;
//TR0=1;
EA=1;
}
void time0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==20)
{
count=0;
flag_count=1;
}
}
void key()
{
unsigned char kk=keyboard();
unsigned char guan=get_lux(0x41);
if(guan<64)
{
P0=0xff;
P2&=0x1f;
P2|=0x80;
led1=0;//灯l2亮
P2&=0x1f;
}
if(guan>=64)
{
P0=0xff;
P2&=0x1f;
P2|=0x80;
led1=1;//灯l1灭
P2&=0x1f;
}
if(kk==7)
{
flag_s7=1;
state=1;
TR0=1; //启动定时器
}
if(kk==6)
{
flag_s6=1;
state=2;
}
if(flag_s7)
{
flag_s7=0;bell=0;relay=1;EXE_EN;
}
if(flag_s6)
{
TR0=0; //关闭定时器
flag_s6=0;bell=0;relay=0;EXE_EN;
}
if(state==1)
{
display_s(1,0); display(2,5); display(3,0);
display(4,amount/100); display_s(5,amount%100/10); display(6,amount%10); display(7,0);
}
if(state==2)
{
display_s(1,0); display(2,5); display(3,0);
display(4,money/1000); display_s(5,money%1000/100); display(6,money%100/10); display(7,money%10);
}
if(flag_count==1)
{
flag_count=0;
money=money+5;
amount=amount+1;
}
if(amount==9990){flag_s6=1;state=2;}
}
void main()
{
init_time0();
while(1)
{
key();
}
}

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