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发表于 2011-5-9 23:06:00
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#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
unsigned char code table[]="T1:";
unsigned char code table1[]="shidu:";
sbit P2_0=P2^2;
sbit rs=P2^5;
sbit en=P2^7;
sbit ws=P2^6;
typedef unsigned char U8;
typedef signed char S8;
typedef unsigned int U16;
uint i;
uchar k,num;
U8 U8FLAG;
U8 U8count,U8temp;
U8 U8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata,U8comdata;
U8 U8T_data_H_temp,U8T_data_L_temp,U8RH_data_H_temp,U8RH_data_L_temp,U8checkdata_temp;
int wendutest,wendu,shi,ge,shidu,qian,bai;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);}
void write_com(uchar com)
{
rs=0;
en=0;
P1=com;
delay(5);
en=1;
delay(5);
en=0;
}
void write_date(uchar date)
{
rs=1;
en=0;
P1=date;
delay(5);
en=1;
delay(5);
en=0;
}
void init()
{
ws=0;
en=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<3;num++)
{
write_date(table[num]);
delay(5);
}
}
/*
void Delay_10us(void)
{
U8 i;
i--;
i--;
i--;
i--;
i--;
i--;
}
void DHT11_delay1(U16 j)
{
U8 i;
for(;j>0;j--)
{
for(i=0;i<27;i++);
}
}
void COM(void)
{
U8 i;
for(i=0;i<8;i++)
{
U8FLAG=2;
while((!P2_0)&&U8FLAG++);
Delay_10us();
Delay_10us();
U8temp=0;
if(P2_0)U8temp=1;
U8FLAG=2;
while((P2_0)&&U8FLAG++);
if(U8FLAG==1)break;
U8comdata<<=1;
U8comdata|=U8temp;
}
}
void RH()
{
P2_0=0;
DHT11_delay1(180);
P2_0=1;
Delay_10us();
Delay_10us();
Delay_10us();
Delay_10us();
P2_0=1;
if(!P2_0) //T!
{
U8FLAG=2;
while((!P2_0)&&U8FLAG++);
U8FLAG=2;
while((P2_0)&&U8FLAG++);
COM();
U8RH_data_H_temp=U8comdata;
COM();
U8RH_data_L_temp=U8comdata;
COM();
U8T_data_H_temp=U8comdata;
COM();
U8T_data_L_temp=U8comdata;
COM();
U8checkdata_temp=U8comdata;
P2_0=1;
U8temp=(U8T_data_H_temp+U8T_data_L_temp+U8RH_data_H_temp+U8RH_data_L_temp);
if(U8temp==U8checkdata_temp)
{
U8RH_data_H=U8RH_data_H_temp;
U8RH_data_L=U8RH_data_L_temp;
U8T_data_H=U8T_data_H_temp;
U8T_data_L=U8T_data_L_temp;
U8checkdata=U8checkdata_temp;
}
shidu=U8RH_data_H;//湿度
wendu=U8T_data_H;//温度
shi=wendu/10;
ge=wendu%10;
qian=shidu/10;
bai=shidu%10;
write_com(0x80);
for(k=0;k<6;k++)
{
write_com(table[k]);
}
write_date(0x30+shi);
write_date(0x30+ge);
write_com(0x80+0x40);
for(k=0;k<8;k++)
{
write_date(table1[k]);
}
write_date(0x30+qian);
write_date(0x30+bai);
}
}
*/
void main()
{
init();
//init_yejin();
while(1)
{
// RH();
}
} |
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