主函数文件

//主函数文件#include <reg52.h>#include <intrins.h>#include <stdio.h>#define LCD_DATA P1 //LCD1602 data transfer define#define uint unsigned int#define uchar unsigned charsbit LCD_RS = P3^7; //1602 control definesbit RW = P3^6;sbit LCD_E = P3^5;void LCD_write_char(uchar cd,uchar ab);void LCD_set_xy( X, Y ); void LCD_byte(ab);//下面是红外线控制步进电机的程序定义#define MOTOR_SPEED 3#define MOTOR_R 500uint R_dat=MOTOR_R;uchar code clockWise[]={0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09}; //八拍方式驱动，顺序为A AB B BC C CD D DA//uchar code clockWise1[]={0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08};sbit IN1=P0^1;sbit speeb=P0^0;//蜂鸣器sbit key1=P3^3;//变频按键sbit kaimen=P3^0;sbit guanmen=P3^1;//sbit key2=P0^2;//防挤压按键uchar num1,num2=10;void delay2(uchar z);void delay3(uchar o);void zhengzhuan(uchar s);void fanzhuan();void Control();//DS18b20的程序定义#include<intrins.h>void delay(uint i);void delay1(uint a);sbit DQ=P3^4;uint temp; /*******************************DS18b20的程**********************************///延时程序void delay(unsigned int i){char j;for(i;i>0;i--);for(j=200;j>0;j--);}void delay1(uint a) {while(--a);}void init_18b20() {DQ=1;delay1(8);DQ=0;delay1(90);DQ=1;_nop_();_nop_();delay1(100);DQ=1;}void weite(uchar dat) {uchar i;for(i=0;i<8;i++); { DQ=0;DQ=dat&0x01;delay1(5);DQ=1;dat>>=1;}}uchar read(){uchar i,dat=0;DQ=1;_nop_();for(i=0;i<8;i++);{DQ=0;_nop_();_nop_();dat>>=1;DQ=1;_nop_();_nop_();if(DQ) dat|=0x80; delay1(30);}return dat;}uchar read_tu(){uchar a,b;init_18b20();weite(0xcc);weite(0x44);init_18b20();weite(0xcc);weite(0xbe);a=read();b=read();b<<=4;b+=(a&0xf0)>>4;return b;}/**********************DHT11*****************************************/ sbit bit11=P3^3;unsigned charU8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata;float F16T,F16RH; //用于最终读取的温湿度数据void Delay_ms(unsigned int n)//n毫秒延时//延时函数文件{unsigned char j;while(n--){for(j=0;j<125;j++);}}void Delay_us(unsigned char n) //N us延时函数{n=n/2;while(--n);}char COM(void){char i,U8temp,U8comdata;for(i=0;i<8;i++);{while(!bit11);//表示读取的高电位延时大于20多us 则读取的是1 否则读取的是0 Delay_us(35);//通过U8FLAG 可判断bit11 显示数据的脉长if(bit11)U8temp=1;while(bit11);U8comdata<<=1;U8comdata|=U8temp;}//rofreturn U8comdata;}void getDHT11(void){GO1:bit11=0;//主机拉低18msDelay_ms(20);bit11=1;Delay_us(60);//总线由上拉电阻拉高主机延时20usif(!bit11) //T !{while(!bit11);//wait DHT goto highwhile(bit11);//数据接收状态U8RH_data_H=COM();U8RH_data_L=COM();U8T_data_H=COM();U8T_data_L=COM();U8checkdata=COM();bit11=1;//数据校验if((U8T_data_H+U8T_data_L+U8RH_data_H+U8RH_data_L)!=U8checkdata) ................. goto GO1;}//fiF16T=U8T_data_H+(float)U8T_data_L/256;//change integer to floatF16RH=U8RH_data_H+(float)U8RH_data_L/256;}/*****************************LCD1602文件***********************************/void Init_Lcd() //LCD初始化{LCD_write_char(0x38,0);Delay_ms(1);LCD_write_char(0x38,0);Delay_ms(1);LCD_write_char(0x38,0);Delay_ms(1);LCD_write_char(0x0c,0);Delay_ms(1);LCD_write_char(0x06,0);Delay_ms(1);LCD_write_char(0x0c,0);Delay_ms(1);}void LCD_write_str(unsigned char X,unsigned char Y,unsigned char *s)//LCD_write_str(uchar X,uchar Y,uchar *s)主函数调用{LCD_write_char(0,' ');LCD_set_xy( X, Y ); //写地址while (*s) // 写显示字符{LCD_write_char( 0, *s );s ++;}}void LCD_set_xy( uchar x, uchar y ) //写地址函数篖LCD_set_xy( uchar x, uchar y ){unsigned char address;if (y == 0) address = 0x80 + x;elseaddress = 0xc0 + x;LCD_write_char( address, 0 );}void LCD_en_write(void) //液晶使能LCD_en_write(void){_nop_();LCD_E=1;//EN=1_nop_();LCD_E=0;//EN=0}void LCD_write_char(uchar cd,uchar ab) // 写数据LCD_write_char(uchar cd,uchar ab）{Delay_us(20);if(cd==0){LCD_RS=1;//RS=1,写显示内容LCD_byte(ab);}else{LCD_RS=0; //RS=0，写命令LCD_byte(cd);}}void LCD_byte(unsigned char abc) // LCD_byte(abc);{RW = 0;LCD_E = 0;LCD_DATA = abc;LCD_en_write();}//在液晶中显示浮点数函数LCD_value(unsigned char x,unsigned char y,float f){unsigned char str[15]; //不能定义为char* str，数组长度一定要大于浮点数的总位数sprintf(str,"%.1f",f); //1表示小数位数小数太多自动四舍五入LCD_write_str( x, y, str);return 0;}/**************************************主程序*******************************/ void main (){Init_Lcd();LCD_write_str(0,1,"abc"); //液晶预显示测试LCD_value(0,0,34.345);Delay_ms(2000);Init_Lcd();while(1){if(IN1==0){Control();}getDHT11();LCD_write_str(0,0,"T=");LCD_value(3,0,F16T);LCD_write_str(7,0,"\"C"); //字符" 应用转义格式temp=read_tu();。