简单温度控制完整程序

1、简单温度控制完整程序#include #include #define uchar unsigned char#define uint unsigned int sbit rs = P3A4 ;sbit rw = P3A5 ;sbit ep = P3A7 ;unsigned int set1=30,set2=10;unsigned char flag=0;sbit DQ =P1A7;/定义通信端口sbit fengmingqi=P1A1;sbit jidianqi=P1A5;codeucharmayuan=0,T,2,3,4；5,6,7,8,9; code uchar aa=wendu is:

2、; code uchar bb=sheding :;typedef bit BOOL ;unsigned char k,dat_wr8,dat_rd8;void putchar(uchar weizhi,uchar da);void delay(uchar);void lcd_wcmd(uchar);BOOL lcd_bz();void lcd_pos(uchar);void lcd_wdat(uchar);void display(uchar,uchar *);void lcd_init();void longdelay(uchar s);void keyscan(void);BOOL lc

3、d_bz() II测试LCD忙碌状态BOOL result ;rs = 0 ;rw = 1 ;ep = 1 ;result = (BOOL)(P2 & 0 x80);ep = 0 ;return result ;void lcd_wcmd(uchar cmd)写入指令数据到LCDwhile(lcd_bz();rs = 0 ;rw = 0 ;ep = 0 ;P2 = cmd ;ep = 1 ;ep = 0 ;void lcd_pos(uchar pos)设定显示位置lcd_wcmd(pos | 0 x80);void lcd_wdat(uchar dat)/写入字符显示数据到LCDwhile(l

4、cd_bz();rs = 1 ;rw = 0 ;ep = 0 ;P2 = dat ;ep = 1 ;ep = 0 ; void lcd_init() /LCD初始化设定lcd_wcmd(0 x38);delay(1);lcd_wcmd(0 x38);delay(1);lcd_wcmd(0 x08);delay(1);lcd_wcmd(0 x01);delay(1);lcd_wcmd(0 x06);delay(1) ;lcd_wcmd(0 x0c);/function set/function set/display on/off清除LCD的显示内容/entry mode set/entry m

5、ode setdelay(1);函数名称：display()功能：在LCD上显示数组的数据说明：先写显示地址，后写显示数据调用:lcd_wcmd(), lcd_pos()入口参数：pos写入的位置，q指向要写入的数据所在的数组返回值：无*/void display(uchar pos, uchar *q)uchari ;/lcd_wcmd(0 x01) ; /cleardelay(10);lcd_pos(pos);for(i=0 ;i9;i+)lcd_wdat(*q);q+ ;void putchar(uchar weizhi,uchar da)delay(2);lcd_pos(weizhi)

6、;lcd_wdat(da);延时函数void delay(uchar ms) / 延时子程序 uchari ;while(ms-)for(i = 0 ; i0;i-)DQ = 1;delay2(5);DQ = 0; /给脉冲信号dat=1;DQ = 1; /给脉冲信号if(DQ)dat|=0 x80;delay2(5);DQ = 1;return(dat);业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业/*业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业 不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不不

7、不不不不不业业业业业逢业业逢业业业业逢业/*/写一个字节void WriteOneChar(unsigned char dat)unsigned char i=0;for (i=8; i0; i-)DQ = 1;delay2(5);DQ = 0;DQ = dat&0 x01;delay2(5);DQ = 1;dat=1;delay(5);业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业业，1 /*/读取温度unsigned int ReadTemperature(void) unsigned int a=0;unsigned int b=0;unsigned int t=0;Ini

8、t_DS18B20();WriteOneChar(0 xCC); 跳过读序号列号的操作WriteOneChar(0 x44); II 启动温度转换 delay2(200);Init_DS18B20();WriteOneChar(0 xCC); 跳过读序号列号的操作WriteOneChar(0 xBE); 读取温度寄存器等(共可读9个寄存器)前两个就是温度=Ja=ReadOneChar(); 读低八位数据b=ReadOneChar();读最高四位，一共十二位b=8;/b4;/b与a组成最高的八位c ,算时舍去了最低四位，只保留5到12位(c*2*2*2*2*0.0625=c*1=c),所 以 c 的值就是实测温度t=b+a;return(t); main()uint bai,shi,ge;float v;int j;unsigned int i;fengmingqi=1;jidianqi=1;delay(10);lcd_init() ;/ 初始化 LCDdisplay(0 x00,aa);display(0 x40,bb);while(1)i