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#include <STC15F2K60S2.H>
#include <intrins.h>
typedef unsigned int u16;
typedef unsigned char u8;
sbit key=P1^4;
u8 code tab[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90,0XBF,0XFF};
u16 yi,er,san,si,wu,liu,qi,ba,jiu;
void Delay100us()
{
unsigned char i, j;
_nop_();
_nop_();
i = 2;
j = 15;
do
{
while (--j);
} while (--i);
}
void Delay500us()
{
unsigned char i, j;
_nop_();
_nop_();
i = 6;
j = 93;
do
{
while (--j);
} while (--i);
}
void delayms(int ms)
{
int i,j;
for(i=ms;i>0;i--)
for(j=845;j>0;j--);
}
void chushihua()
{
key=0;
Delay500us();
key=1;
Delay500us();
}
void write(u8 dat)
{
u16 i;
for(i=0;i<8;i++)
{
key=0;
key=dat&0x01;
Delay100us();
key=1;
dat=dat>>1;
}
}
u16 read()
{
u16 i;
u16 dat;
for (i=0;i<8;i++)
{
key=0;
_nop_();
dat=dat>>1;
key=1;
if(key==1)
{
dat=dat|0x80;
}
Delay100us();
}
return dat;
}
u16 tempget()
{
u16 temp;
u16 low,height;
chushihua();
write(0xcc);
write(0x44);
Delay500us();
Delay500us();/*yidian*/
chushihua();
write(0xcc);
write(0xbe);
low=read();
height=read();
temp=height<<4;
temp=temp|(low>>4);
return temp;
}
void allinit()
{
P2=0XA0;
P0=0X00;
P2=0X80;
P0=0XFF;
P2=0XC0;
P0=0XFF;
P2=0XFF;
P0=0XFF;
}
void desplay1 (u16 yi,u16 er)
{
P2=0XC0;
P0=0X01;
P2=0XFF;
P0=tab[yi];
delayms(1);
P2=0XC0;
P0=0X02;
P2=0XFF;
P0=tab[er];
delayms(1);
}
void desplay2 (u16 san,u16 si)
{
P2=0XC0;
P0=0X04;
P2=0XFF;
P0=tab[san];
delayms(1);
P2=0XC0;
P0=0X08;
P2=0XFF;
P0=tab[si];
delayms(1);
}
void desplay3 (u16 wu,u16 liu)
{
P2=0XC0;
P0=0X10;
P2=0XFF;
P0=tab[wu];
delayms(1);
P2=0XC0;
P0=0X20;
P2=0XFF;
P0=tab[liu];
delayms(1);
}
void desplay4 (u16 qi,u16 ba)
{
P2=0XC0;
P0=0X40;
P2=0XFF;
P0=tab[qi];
delayms(1);
P2=0XC0;
P0=0X80;
P2=0XFF;
P0=tab[ba];
delayms(1);
}
void main()
{
u16 wendu;
allinit();
yi=11;
er=11;
san=11;
si=11;
wu=11;
liu=0;
qi=0;
ba=0;
while(1)
{
wendu=tempget();
liu=wendu/100;
qi=wendu%100/10;
ba=wendu%10;
desplay1(yi,er);
desplay2(san,si);
desplay3(wu,liu);
desplay4(qi,ba);
}
}
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