PIC单片机实例四:温度测量系统的设计与仿真

       网上有很多一线总线的产品,我觉得这项技术的前景不错,自己用C也写了一个测温的程序.

并通过PROTEUS进行了仿真.

       搞了很多天,终于搞出来了,心里高兴的很,拿出来晒一下!

一.   原理介绍

说明:

1.单片机采用PIC16F877A,主要是由于液晶显示需要自己写字库,所以需要大容量的EEPROM,而他有8K字节.

2.液晶使用的是KS0108控制器系列,他的指令比较简单,性价比较高.

3.温度传感器采用的是1-WIRE总线技术的DS18B20,测的温度分辨率高.

附另外两张效果图

二.   器件介绍

       DS18B20的相关资料

       读写时序复位时序操作ROM的指令内部框图读出数据说明

KS0108控制器相关资料:

三.   程序

/*************************************************************
        * 标题：温度测量系统                                         *
        * 作者：Wujieflash                                              *
        * 日期：2008年1月8日                                        *
        * 版本：V1.0                                                       *
        * 说明：①单片机：PIC16F877A                         *                
        *            ②液晶；  KS0108控制器                       *
        *            ③传感器：DS18B20                              *
*******************************************************************/
#include

__CONFIG(0x1832);        
//芯片配置字，看门狗关，上电延时开，掉电检测关，低压编程关，加密，4M晶体HS振荡

#define E    RC0        //液晶使能端
#define RW   RC1        //读写控制端
#define DI   RC2        //数据/指令通道
#define CSA  RC3        //片选
#define CSB  RC4        //片选
#define nop() asm("nop")
#define  uch unsigned char                      //给unsigned char起别名 uch
# define DQ RA0                                 //定义18B20数据端口 
# define DQ_DIR TRISA0                          //定义18B20D口方向寄存器 
# define DQ_HIGH() DQ_DIR =1                    //设置数据口为输入
# define DQ_LOW() DQ = 0; DQ_DIR = 0            //设置数据口为输出
uch TLV=0 ;                            //采集到的温度高8位
uch THV=0;                             //采集到的温度低8位
uch TZ=0;                                 //转换后的温度值整数部分                     
int val1=35,val2=10;

//字库
/*-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
const unsigned char wen[]={0x10,0x21,0x86,0x70,0x00,0x7E,0x4A,0x4A,0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0x00,0x02,0xFE,0x01,0x40,0x7F,0x41,0x41,0x7F,0x41,0x41,0x7F,0x41,0x41,0x7F,0x40,0x00};//温
const unsigned char du[]={0x00,0x00,0xFC,0x04,0x24,0x24,0xFC,0xA5,0xA6,0xA4,0xFC,0x24,0x24,0x24,0x04,0x00,0x80,0x60,0x1F,0x80,0x80,0x42,0x46,0x2A,0x12,0x12,0x2A,0x26,0x42,0xC0,0x40,0x00};/*"度"*/
const unsigned char ce[]={0x08,0x31,0x86,0x60,0x00,0xFE,0x02,0xF2,0x02,0xFE,0x00,0xF8,0x00,0x00,0xFF,0x00,0x04,0xFC,0x03,0x00,0x80,0x47,0x30,0x0F,0x10,0x67,0x00,0x07,0x40,0x80,0x7F,0x00};/*"测"*/
const unsigned char liang[]={0x40,0x40,0x40,0xDF,0x55,0x55,0x55,0xD5,0x55,0x55,0x55,0xDF,0x40,0x40,0x40,0x00,0x40,0x40,0x40,0x57,0x55,0x55,0x55,0x7F,0x55,0x55,0x55,0x57,0x50,0x40,0x40,0x00};/*"量"*/
const unsigned char xi[]={0x00,0x00,0x02,0x22,0xB2,0xAA,0x66,0x62,0x22,0x11,0x4D,0x81,0x01,0x01,0x00,0x00,0x00,0x40,0x21,0x13,0x09,0x05,0x41,0x81,0x7F,0x01,0x05,0x09,0x13,0x62,0x00,0x00};/*"系"*/
const unsigned char tong[]={0x20,0x30,0x2C,0xA3,0x60,0x10,0x84,0xC4,0xA4,0x9D,0x86,0x84,0xA4,0xC4,0x84,0x00,0x20,0x22,0x23,0x12,0x12,0x92,0x40,0x30,0x0F,0x00,0x00,0x3F,0x40,0x41,0x70,0x00};/*"统"*/
const unsigned char zuo[]={0x80,0x40,0x20,0xF8,0x07,0x22,0x18,0x0C,0xFB,0x48,0x48,0x48,0x68,0x48,0x08,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0xFF,0x04,0x04,0x04,0x04,0x06,0x04,0x00};//作
const unsigned char zhe[]={0x00,0x20,0x24,0x24,0x24,0x24,0xA4,0xBF,0x64,0x24,0x34,0x28,0x26,0x24,0x20,0x00,0x04,0x04,0x04,0x02,0x02,0xFF,0x49,0x49,0x49,0x49,0x49,0x49,0xFF,0x00,0x00,0x00};//者
const unsigned char ban[]={0x00,0xFE,0x90,0x90,0x9E,0x10,0x10,0xFE,0xE2,0x22,0x22,0x21,0xE1,0x21,0x00,0x00,0x40,0x3F,0x00,0x00,0x5F,0x20,0x98,0x47,0x20,0x13,0x0C,0x1B,0x60,0xC0,0x40,0x00};//版
const unsigned char ben[]={0x08,0x08,0x08,0x08,0x08,0xC8,0x38,0xFF,0x18,0x68,0x88,0x08,0x08,0x08,0x08,0x00,0x08,0x08,0x04,0x02,0x05,0x04,0x04,0x7F,0x04,0x04,0x04,0x03,0x06,0x0C,0x04,0x00};//本
const unsigned char zheng[]={0x00,0x02,0x02,0xC2,0x02,0x02,0x02,0x02,0xFE,0x82,0x82,0x82,0x82,0x82,0x02,0x00,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x20,0x00};//正
const unsigned char zai[]={0x00,0x04,0x04,0xC4,0x64,0x9C,0x87,0x84,0x84,0xE4,0x84,0x84,0x84,0x84,0x04,0x00,0x04,0x02,0x01,0x7F,0x00,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x00};//在
const unsigned char chu[]={0x00,0x08,0x88,0xC9,0x2E,0x98,0x48,0x00,0x08,0x08,0xF8,0x08,0x08,0xFC,0x08,0x00,0x02,0x01,0x00,0x7F,0x01,0x02,0x44,0x20,0x10,0x0C,0x03,0x20,0x40,0x3F,0x00,0x00};//初
const unsigned char shi[]={0x10,0x90,0x70,0x1F,0x12,0xF0,0x00,0x20,0x70,0x28,0x27,0x22,0x28,0x70,0x20,0x00,0x40,0x21,0x12,0x0C,0x06,0x09,0x30,0x00,0x7F,0x21,0x21,0x21,0x21,0x7F,0x00,0x00};//使
const unsigned char hua[]={0x80,0x40,0x20,0xF8,0x07,0x02,0x00,0x00,0xFF,0xC0,0x60,0x30,0x1C,0x08,0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x04,0x02,0x01,0x3F,0x40,0x40,0x40,0x40,0x78,0x00,0x00};//化
const unsigned char shang[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x40,0x40,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x40,0x40,0x40,0x7F,0x40,0x40,0x40,0x40,0x40,0x60,0x40,0x00};//上
const unsigned char xia[]={0x00,0x02,0x02,0x02,0x02,0x02,0x02,0xFE,0x22,0x62,0xC2,0x82,0x02,0x03,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00};//下
const unsigned char xian[]={0xFE,0x02,0x32,0x4E,0x82,0x00,0xFE,0x4A,0xCA,0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0xFF,0x00,0x02,0x04,0x03,0x00,0xFF,0x40,0x20,0x03,0x0C,0x12,0x21,0x60,0x20,0x00};//限
const unsigned char zhu[]={0x10,0x60,0x01,0x86,0x60,0x08,0x08,0x08,0x09,0xFE,0x08,0x08,0x08,0x08,0x08,0x00,0x04,0x04,0xFE,0x01,0x40,0x40,0x41,0x41,0x41,0x7F,0x41,0x41,0x41,0x41,0x40,0x00};//注
const unsigned char yi[]={0x10,0x10,0x12,0xD2,0x56,0x5A,0xD2,0x53,0x52,0x5A,0x56,0xD2,0x12,0x12,0x10,0x00,0x00,0x20,0x38,0x03,0x3A,0x42,0x42,0x4B,0x52,0x42,0x42,0x63,0x08,0x30,0x00,0x00};//意
const unsigned char she[]={0x40,0x41,0xCE,0x04,0x00,0x80,0x40,0xBE,0x82,0x82,0x82,0xBE,0xC0,0x40,0x40,0x00,0x00,0x00,0x7F,0x20,0x90,0x80,0x40,0x43,0x2C,0x10,0x10,0x2C,0x43,0xC0,0x40,0x00};//设
const unsigned char zhi[]={0x00,0x20,0x2F,0xA9,0xA9,0xAF,0xE9,0xB9,0xA9,0xAF,0xA9,0xA9,0x2F,0x20,0x00,0x00,0x80,0x80,0x80,0xFF,0xAA,0xAA,0xAA,0xAA,0xAA,0xAA,0xAA,0xFF,0x80,0x80,0x80,0x00};//置
const unsigned char dang[]={0x00,0x00,0x40,0x42,0x5C,0x48,0x40,0x40,0x7F,0x40,0x50,0x4E,0x44,0xC0,0x00,0x00,0x00,0x00,0x20,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x7F,0x00,0x00};//当
const unsigned char qian[]={0x08,0x08,0xE8,0xA8,0xA9,0xAE,0xEA,0x08,0x08,0xC8,0x0C,0x0B,0xEA,0x08,0x08,0x00,0x00,0x00,0x7F,0x04,0x24,0x44,0x3F,0x00,0x00,0x1F,0x40,0x80,0x7F,0x00,0x00,0x00};//前 
const unsigned char fang[]={0x00,0xFE,0x22,0x5A,0x86,0x02,0x08,0x08,0xF9,0x8E,0x88,0x88,0x88,0x08,0x08,0x00,0x00,0xFF,0x04,0x08,0x47,0x20,0x18,0x07,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00};//防
const unsigned char shu[]={0x00,0x00,0x40,0x5F,0x55,0x55,0xF5,0x55,0x55,0x55,0xD5,0x5F,0x40,0x00,0x00,0x00,0x11,0x11,0x09,0x09,0xFD,0x55,0x57,0x57,0x55,0x55,0x55,0xFD,0x01,0x01,0x01,0x00};//暑
const unsigned char bao[]={0x40,0x20,0xF8,0x17,0x82,0x80,0xBE,0xA2,0xA2,0xE2,0xA2,0xA2,0xBE,0x80,0x80,0x00,0x00,0x00,0x7F,0x00,0x20,0x10,0x08,0x06,0x01,0x7F,0x03,0x0C,0x18,0x30,0x10,0x00};//保
const unsigned char nuan[]={0x00,0xFC,0x44,0x44,0xFC,0x80,0xA6,0xAA,0xE2,0xA6,0xAA,0xA1,0xA9,0xA5,0x80,0x00,0x00,0x0F,0x04,0x04,0x4F,0x20,0x58,0x46,0x27,0x2A,0x12,0x1A,0x26,0x62,0x20,0x00};//暖
const unsigned char nononono[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//
const unsigned char danwei_c[]={0x00,0x02,0x05,0xE2,0x18,0x04,0x02,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x40,0x40,0x40,0x40,0x40,0x20,0x18,0x00,0x00};//单位
const unsigned char maohao[]={0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00};//':'
const unsigned char dian[]={0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x00,0x00,0x00};//'.'
const unsigned char dw[]={0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00};//‘W'
const unsigned char uu[]={0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20};//'u'
const unsigned char jj[]={0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00};//'j'
const unsigned char ii[]={0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00};//'i'
const unsigned char ee[]={0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00};//'e'
const unsigned char ff[]={0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00};//'f'
const unsigned char ll[]={0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00};//'l'
const unsigned char aa[]={0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20};//'a'
const unsigned char ss[]={0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00};//'s'
const unsigned char hh[]={0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20};//'h'
const unsigned char vv[]={0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00};//'v'
const unsigned char zhenghao1[]={0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00};//'+'
const unsigned char fuhao1[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01};//'-'
const unsigned char xinghao[]={0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00};//"*'
const unsigned char s1[]={0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00};//'1'
const unsigned char s0[]={0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00};//'0' 
const unsigned char s2[]={0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00};/*"2",0*/
const unsigned char s3[]={0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00};/*"3",1*/
const unsigned char s4[]={0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00};/*"4",2*/
const unsigned char s5[]={0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00};/*"5",3*/
const unsigned char s6[]={0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00};/*"6",4*/
const unsigned char s7[]={0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00};/*"7",5*/
const unsigned char s8[]={0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00};/*"8",6*/
const unsigned char s9[]={0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00};/*"9",7*/ 
const unsigned char nono[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//空的
const unsigned char juhao[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00};//'.'
const unsigned char zhenghao[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//'+'
const unsigned char fuhao[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//'-'
const unsigned char ss0[]={0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0x40,0x40,0x40,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xFE,0x0F,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x07,0xFE,0xF0,0x00,0x00,0x00,0x1F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xFF,0x1F,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x06,0x04,0x04,0x04,0x06,0x03,0x01,0x00,0x00,0x00};//0
const unsigned char ss1[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x04,0x06,0x07,0x07,0x06,0x04,0x04,0x04,0x00,0x00,0x00};//1
const unsigned char ss2[]={0x00,0x00,0x00,0x00,0x80,0x40,0x40,0x40,0x40,0x40,0xC0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1E,0x19,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC1,0x7F,0x3E,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x07,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x07,0x01,0x00,0x00};//2
const unsigned char ss3[]={0x00,0x00,0x00,0x80,0x80,0x40,0x40,0x40,0x40,0xC0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x0F,0x00,0x00,0x80,0x80,0x80,0xC0,0x61,0x3F,0x1E,0x00,0x00,0x00,0x00,0x00,0xE0,0xE0,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0xFE,0x78,0x00,0x00,0x00,0x00,0x01,0x03,0x02,0x04,0x04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00,0x00};//3
const unsigned char ss4[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x30,0x0C,0x02,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x10,0x1C,0x12,0x11,0x10,0x10,0x10,0x10,0xFF,0xFF,0xFF,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x08,0x08,0x0F,0x0F,0x0F,0x08,0x08,0x08,0x00};//4
const unsigned char ss5[]={0x00,0x00,0x00,0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0xF8,0x87,0x40,0x20,0x20,0x20,0x20,0x60,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0xE0,0x61,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFF,0x7E,0x00,0x00,0x00,0x00,0x01,0x02,0x04,0x04,0x04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00,0x00};//5
const unsigned char ss6[]={0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0x40,0x40,0x40,0x40,0x80,0x00,0x00,0x00,0x00,0x00,0xE0,0xFC,0x0E,0x81,0x80,0x40,0x40,0x40,0x40,0xC0,0x83,0x03,0x00,0x00,0x00,0x00,0x3F,0xFF,0xC3,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,0x7E,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x06,0x04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00};//6
const unsigned char ss7[]={0x00,0x00,0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x0F,0x03,0x01,0x00,0x00,0x00,0x80,0x60,0x18,0x06,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xFC,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//7
const unsigned char ss8[]={0x00,0x00,0x00,0x00,0x80,0xC0,0x40,0x40,0x40,0x40,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x3F,0x71,0xE0,0xC0,0x80,0x80,0x80,0x80,0x61,0x3F,0x1E,0x00,0x00,0x00,0xF8,0xFC,0x06,0x03,0x01,0x00,0x01,0x01,0x03,0x07,0x0E,0xFC,0xF8,0x00,0x00,0x00,0x00,0x01,0x03,0x02,0x04,0x04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00,0x00};//8
const unsigned char ss9[]={0x00,0x00,0x00,0x80,0x80,0x40,0x40,0x40,0x40,0x40,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0xFF,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x83,0xFE,0xF8,0x00,0x00,0x00,0x00,0x81,0x83,0x06,0x04,0x04,0x04,0x04,0x02,0x83,0xF1,0x7F,0x0F,0x00,0x00,0x00,0x00,0x03,0x03,0x04,0x04,0x04,0x04,0x06,0x03,0x01,0x00,0x00,0x00,0x00,0x00};//9
const unsigned char nonono[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//9
const unsigned char danwei_c1[]={0x00,0x00,0x00,0x00,0x00,0xE0,0x10,0x10,0x10,0xF0,0x00,0x00,0x00,0x80,0xc0,0x60,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,0xfC,0xff,0x07,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1f,0x7f,0xf0,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03};//℃
const unsigned char danwei_c2[]={0x30,0x30,0x10,0x10,0x10,0x20,0x20,0x20,0x40,0x80,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x06,0x06,0x06,0x06,0x06,0x06,0x02,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00};
/*------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/

////////////////////////基本子函数///////////////////////
//延时
void delay(char x,char y) 
{
  char z;
  do{
      z=y;
      do{;}while(--z);
     }while(--x);
 }
//其指令时间为：7+（3*（Y-1）+7）*（X-1）如果再加上函数调用的call 指令、页面设定、传递参数花掉的7 个指令。
//则是：14+（3*（Y-1）+7）*（X-1）。

//--------------------------------------------------

//系统初始化函数
void init()
{
  ADCON1=0X07;                                //设置A口为普通数字口
  TRISA=0X00;                                 //设置A口方向为输出
  TRISD=0X00;                                 //设置D口方向为输出
}

//-----------------------------------------------
//复位DS18B20函数(*一定要注意延时，我曾经在这上差点搞晕*）
reset(void)            
{
  char presence=1;
  while(presence)
  { 
    DQ_LOW() ;                                //主机拉至低电平
    delay(2,90);                              //延时>480503us
    DQ_HIGH();                                //释放总线等电阻拉高总线,并保持15~60us
    delay(2,8);                               //延时>60us
    if(DQ==1) presence=1;                     //没有接收到应答信号，继续复位
    else presence=0;                          //接收到应答信号
    delay(2,70);                              //延时>240us
   }
  }

//-----------------------------------------------
//写18b20写字节函数
void write_byte(uch val)
{
 uch i;
 uch temp;
 for(i=8;i>0;i--)
 {
   temp=val&0x01;                            //最低位移出
   DQ_LOW(); 
   NOP();
   NOP();
   NOP();
   NOP();
   NOP();                                    //从高拉至低电平,产生写时间隙
   if(temp==1)  DQ_HIGH();                   //如果写1,拉高电平
   delay(2,7);                               //延时>60us
   DQ_HIGH(); 
   NOP();
   NOP();
   val=val>>1;                               //右移一位
  }
}

//------------------------------------------------
//18b20读字节函数
uch read_byte(void)
{
 uch i;
 uch value=0;                                //读出温度
 static bit j;
 for(i=8;i>0;i--)
 {
   value>>=1; 
   DQ_LOW();
   NOP();
   NOP();
   NOP();
   NOP();                                   //6us
   DQ_HIGH();                               //拉至高电平
   NOP(); 
   NOP(); 
   NOP();                                //4us
   j=DQ;
   if(j) value|=0x80;
   delay(2,7);                             //63us
  }
  return(value);
}

//-------------------------------------------------
//启动温度转换函数
void get_temp()
{ 
int i;
DQ_HIGH();
reset();                                 //复位等待从机应答 
write_byte(0XCC);                        //忽略ROM匹配 
write_byte(0X44);                        //发送温度转化命令  
for(i=10;i>0;i--)
    {
        
        delay(201,132);                       
    }
reset();                                 //再次复位，等待从机应答 
write_byte(0XCC);                        //忽略ROM匹配 
write_byte(0XBE);                        //发送读温度命令 
TLV=read_byte();                         //读出温度低8 
THV=read_byte();                         //读出温度高8位 
DQ_HIGH();                               //释放总线 
TZ=(TLV>>4)|(THV<<4);                   //温度整数部分

}

//--------------------------------------------------
void LCDdelay()
{
 unsigned int i=500;
 while(i--)
 {;}
}
/*----------------------------------------------------*/

//状态检查
void CheckState()
{
 unsigned int dat;
 RW=1;                             //读状态
 DI=0;
 TRISB=0xff;                       //设置口为输入
 while(1)
 {
  E=1;                          //高电平读数据
  dat=PORTB&0x90;               //当4、7位为0时为正常状态
  E=0;
  if(dat==0x00)break;
 }
 TRISB=0x00;                       //恢复口为输出
}
/*----------------------------------------------------*/

//写显示数据
//dat:显示数据
void WriteData(unsigned char dat)
{
 CheckState();
 DI=1;                            //写数据
 RW=0;
 PORTB=dat;
 E=1;
 E=0;
}
/*---------------------------------------------------*/

//写指令
//command:操作LCD的指令
void WriteCommand(unsigned char dat)
{
 CheckState();
 RW=0;                          //写指令
 PORTB=dat;
 E=1;
 E=0;
}
/*---------------------------------------------------*/

//设定页地址----X:0--7
void SetLine(unsigned char line)
{
 line=line&0x07;               //0<=line<=7 
 line=line|0xb8;
 WriteCommand(line);
}
/*---------------------------------------------------*/

//设定列地址----Y:0--63
void SetColumn(unsigned char column)
{
 column=column&0x3f;          //0<=column<=63
 column=column|0x40;
 WriteCommand(column);
}
/*--------------------------------------------------*/

//设定开始行
void SetStartLine(unsigned char startline)
{
 startline=startline&0x3f;   //0<=startline<=63
 startline=startline|0xc0;
 WriteCommand(startline);
}
/*--------------------------------------------------*/

//开关显示
//1:开显示  0:关显示
void SetOnOff(unsigned char state)
{
 state=state|0x3e;
 WriteCommand(state);
}
/*--------------------------------------------------*/

//选择屏幕
//screen: 1:左屏 2:右屏
void SlectScreen(unsigned char screen)
{
 switch(screen)
 {
  case 1: CSA=0;
     CSB=1;//左屏
     break;
  case 2: CSA=1;
    CSB=0;//右屏
    break;
 }
}
/*--------------------------------------------------*/

//清屏
//screen: 1:左屏 2:右屏
void ClearScreen(unsigned char screen)
{
 unsigned char i,j;
 SlectScreen(screen);
 for(i=0;i<8;i++)
 {
  SetLine(i);
  for(j=0;j<64;j++)
  {
   WriteData(0x00);
   WriteData(0x00);
  }
 }
}
/*---------------------------------------------------*/

//显示一个16X16的汉字
void Show16X16(unsigned char line,unsigned char column,const unsigned char *pt)
{
 unsigned char i,column_temp;
 column_temp=column;
 SlectScreen(1);                      //选通左屏
 SetColumn(column);                   //设置起始列
 SetLine(line);                       //设置行
 for(i=0;i<16;i++)
 {
  if(column>=64)                   //如果列>=64，则选通右屏
  {
   SlectScreen(2);
   column=column%64;            //设置右屏起始列
   SetColumn(column);
   SetLine(line);
  } 
  WriteData(*pt);                  //写数据
  *pt++;
  column++;
 }
 SlectScreen(1);
 SetLine(line+1);                    //设置汉字下半部分显示页
 column=column_temp;
 SetColumn(column);
 for(i=0;i<16;i++)
 {
  if(column>=64)
  {
   SlectScreen(2);
   column=column%64;
   SetColumn(column);
   SetLine(line+1);
  } 
  WriteData(*pt);
  *pt++;
  column++;
 }
}
/*-------------------------------------------------------*/

//显示一个8X16的字符
void Show8X16(unsigned char line,unsigned char column,const unsigned char *pt)
{
 unsigned char i,column_temp;
 column_temp=column;
 SlectScreen(1);                          //选通左屏
 SetColumn(column);                       //设置起始列
 SetLine(line);                           //设置行
 for(i=0;i<8;i++)
 {
  if(column>=64)                       //如果列>=64，则选通右屏
  {
   SlectScreen(2);
   column=column%64;                //设置右屏起始列
   SetColumn(column);
   SetLine(line);
  } 
  WriteData(*pt);                      //写数据
  *pt++;
  column++;
 }
 SlectScreen(1);
 SetLine(line+1);                         //设置汉字下半部分显示页
 column=column_temp;
 SetColumn(column);
 for(i=0;i<8;i++)
 {
  if(column>=64)
  {
   SlectScreen(2);
   column=column%64;
   SetColumn(column);
   SetLine(line+1);
  } 
  WriteData(*pt);
  *pt++;
  column++;
 }
}
/*-------------------------------------------------------*/

//显示一个16X32的字符
void Show16X32(unsigned char line,unsigned char column,const unsigned char *pt)
{
 unsigned char i,column_temp1,column_temp2,column_temp3;
 column_temp1=column;
 column_temp2=column;
 column_temp3=column;
 SlectScreen(1);                         //选通左屏
 SetColumn(column);                      //设置起始列
 SetLine(line);                          //设置行
 for(i=0;i<16;i++)
 {
  if(column>=64)                      //如果列>=64，则选通右屏
  {
   SlectScreen(2);
   column=column%64;               //设置右屏起始列
   SetColumn(column);
   SetLine(line);
  } 
  WriteData(*pt);                     //写数据
  *pt++;
  column++;
 }
 SlectScreen(1);
 SetLine(line+1);
 column=column_temp1;
 SetColumn(column);
 for(i=0;i<16;i++)
 {
  if(column>=64)
  {
   SlectScreen(2);
   column=column%64;
   SetColumn(column);
   SetLine(line+1);
  } 
  WriteData(*pt);
  *pt++;
  column++;
 }
 SlectScreen(1);
 SetLine(line+2);
 column=column_temp2;
 SetColumn(column);
 for(i=0;i<16;i++)
 {
  if(column>=64)
  {
   SlectScreen(2);
   column=column%64;
   SetColumn(column);
   SetLine(line+2);
  } 
  WriteData(*pt);
  *pt++;
  column++;
 }
 SlectScreen(1);
 SetLine(line+3);
 column=column_temp3;
 SetColumn(column);
 for(i=0;i<16;i++)
 {
  if(column>=64)
  {
   SlectScreen(2);
   column=column%64;
   SetColumn(column);
   SetLine(line+3);
  } 
  WriteData(*pt);
  *pt++;
  column++;
 }
}
/*-------------------------------------------------------*/

//写入变化的参数子程序
void ChangeTemp1(int val)
{
 int D_ge,D_shi,D_bai;
 if(val>0)
 {
  Show8X16(2,72,zhenghao1);          //如果大于0，显示正号
 }
 if(val<0)
 {
  val=0-val;//去除负号
  Show8X16(2,72,fuhao1);             //如果小于0，显示负号
 }
 if(val==0)
 {
  Show8X16(2,72,nono);               //等于0不显示符号
 }
 D_ge=val%10;                           //取个位
 D_shi=val%100/10;                      //取十位
 D_bai=val/100;                         //取百位
 
 switch(D_ge)
 {
  case 0:{Show8X16(2,96,s0);break;}
  case 1:{Show8X16(2,96,s1);break;}
  case 2:{Show8X16(2,96,s2);break;}
  case 3:{Show8X16(2,96,s3);break;}
  case 4:{Show8X16(2,96,s4);break;}
  case 5:{Show8X16(2,96,s5);break;}
  case 6:{Show8X16(2,96,s6);break;}
  case 7:{Show8X16(2,96,s7);break;}
  case 8:{Show8X16(2,96,s8);break;}
  case 9:{Show8X16(2,96,s9);break;}
 }
 switch(D_shi)
 {
  case 0:{Show8X16(2,88,s0);break;}
  case 1:{Show8X16(2,88,s1);break;}
  case 2:{Show8X16(2,88,s2);break;}
  case 3:{Show8X16(2,88,s3);break;}
  case 4:{Show8X16(2,88,s4);break;}
  case 5:{Show8X16(2,88,s5);break;}
  case 6:{Show8X16(2,88,s6);break;}
  case 7:{Show8X16(2,88,s7);break;}
  case 8:{Show8X16(2,88,s8);break;}
  case 9:{Show8X16(2,88,s9);break;}
 }
 switch(D_bai)
 {
  case 0:{Show8X16(2,80,s0);break;}
  case 1:{Show8X16(2,80,s1);break;}
  case 2:{Show8X16(2,80,s2);break;}
  case 3:{Show8X16(2,80,s3);break;}
  case 4:{Show8X16(2,80,s4);break;}
  case 5:{Show8X16(2,80,s5);break;}
  case 6:{Show8X16(2,80,s6);break;}
  case 7:{Show8X16(2,80,s7);break;}
  case 8:{Show8X16(2,80,s8);break;}
  case 9:{Show8X16(2,80,s9);break;}
 }
} 
/*-------------------------------------------------------*/

void ChangeTemp2(int val)
{
 int D_ge,D_shi,D_bai;
 if(val>0)
 {
  Show8X16(4,72,zhenghao1);
 }
 if(val<0)
 {
  val=0-val;
  Show8X16(4,72,fuhao1);
 }
 if(val==0)
 {
  Show8X16(4,72,nono);
 }
 D_ge=val%10;
 D_shi=val%100/10;
 D_bai=val/100;
 
 switch(D_ge)
 {
  case 0:{Show8X16(4,96,s0);break;}
  case 1:{Show8X16(4,96,s1);break;}
  case 2:{Show8X16(4,96,s2);break;}
  case 3:{Show8X16(4,96,s3);break;}
  case 4:{Show8X16(4,96,s4);break;}
  case 5:{Show8X16(4,96,s5);break;}
  case 6:{Show8X16(4,96,s6);break;}
  case 7:{Show8X16(4,96,s7);break;}
  case 8:{Show8X16(4,96,s8);break;}
  case 9:{Show8X16(4,96,s9);break;}
 }
 switch(D_shi)
 {
  case 0:{Show8X16(4,88,s0);break;}
  case 1:{Show8X16(4,88,s1);break;}
  case 2:{Show8X16(4,88,s2);break;}
  case 3:{Show8X16(4,88,s3);break;}
  case 4:{Show8X16(4,88,s4);break;}
  case 5:{Show8X16(4,88,s5);break;}
  case 6:{Show8X16(4,88,s6);break;}
  case 7:{Show8X16(4,88,s7);break;}
  case 8:{Show8X16(4,88,s8);break;}
  case 9:{Show8X16(4,88,s9);break;}
 }
 switch(D_bai)
 {
  case 0:{Show8X16(4,80,s0);break;}
  case 1:{Show8X16(4,80,s1);break;}
  case 2:{Show8X16(4,80,s2);break;}
  case 3:{Show8X16(4,80,s3);break;}
  case 4:{Show8X16(4,80,s4);break;}
  case 5:{Show8X16(4,80,s5);break;}
  case 6:{Show8X16(4,80,s6);break;}
  case 7:{Show8X16(4,80,s7);break;}
  case 8:{Show8X16(4,80,s8);break;}
  case 9:{Show8X16(4,80,s9);break;}
 }
}
/*-------------------------------------------------------*/

void ChangeTemp3(int val)
{
 int D_ge,D_shi,D_bai,sign;

 sign=val&0x80;
 val=val&0x7f;
 
 if(sign==0)
 {
  Show16X32(2,20,zhenghao);
 }
 if(sign)
 {
  val=(~val+1)&0x7f;
  Show16X32(2,20,fuhao);
 }
 if(val==0)
 {
  Show16X32(2,20,nonono);
 }
 D_ge=val%10;
 D_shi=val%100/10;
 D_bai=val/100;
 
 switch(D_ge)
 {
  case 0:{Show16X32(2,68,ss0);break;}
  case 1:{Show16X32(2,68,ss1);break;}
  case 2:{Show16X32(2,68,ss2);break;}
  case 3:{Show16X32(2,68,ss3);break;}
  case 4:{Show16X32(2,68,ss4);break;}
  case 5:{Show16X32(2,68,ss5);break;}
  case 6:{Show16X32(2,68,ss6);break;}
  case 7:{Show16X32(2,68,ss7);break;}
  case 8:{Show16X32(2,68,ss8);break;}
  case 9:{Show16X32(2,68,ss9);break;}
 }
 switch(D_shi)
 {
  case 0:{Show16X32(2,52,ss0);break;}
  case 1:{Show16X32(2,52,ss1);break;}
  case 2:{Show16X32(2,52,ss2);break;}
  case 3:{Show16X32(2,52,ss3);break;}
  case 4:{Show16X32(2,52,ss4);break;}
  case 5:{Show16X32(2,52,ss5);break;}
  case 6:{Show16X32(2,52,ss6);break;}
  case 7:{Show16X32(2,52,ss7);break;}
  case 8:{Show16X32(2,52,ss8);break;}
  case 9:{Show16X32(2,52,ss9);break;}
 }
 switch(D_bai)
 {
  case 0:{Show16X32(2,36,ss0);break;}
  case 1:{Show16X32(2,36,ss1);break;}
  case 2:{Show16X32(2,36,ss2);break;}
  case 3:{Show16X32(2,36,ss3);break;}
  case 4:{Show16X32(2,36,ss4);break;}
  case 5:{Show16X32(2,36,ss5);break;}
  case 6:{Show16X32(2,36,ss6);break;}
  case 7:{Show16X32(2,36,ss7);break;}
  case 8:{Show16X32(2,36,ss8);break;}
  case 9:{Show16X32(2,36,ss9);break;}
 }
 if(val>=val1)
 {
  Show16X16(6,32,zhu);
  Show16X16(6,48,yi);
  Show16X16(6,64,fang);
  Show16X16(6,80,shu);
 }
 if(val<=val2)
 {
  Show16X16(6,32,zhu);
  Show16X16(6,48,yi);
  Show16X16(6,64,bao);
  Show16X16(6,80,nuan);
 }
 if((val>val2)&&(val  {
  Show16X16(6,32,nononono);
  Show16X16(6,48,nononono);
  Show16X16(6,64,nononono);
  Show16X16(6,80,nononono);
 }
}
/*-------------------------------------------------------*/

//显示第一页的内容
void LCDShow1()
{
 Show16X16(0,16,wen);//温
 Show16X16(0,32,du);//度
 Show16X16(0,48,ce);//测
 Show16X16(0,64,liang);//量
 Show16X16(0,80,xi);//系
 Show16X16(0,96,tong);//统
 Show16X16(2,1,zuo);//作
 Show16X16(2,17,zhe);//者
 Show8X16(2,33,maohao);//’：‘
 Show8X16(2,41,dw);//'w'
 Show8X16(2,49,uu);//'u'
 Show8X16(2,57,jj);//'j'
 Show8X16(2,65,ii);//'i'
 Show8X16(2,73,ee);//'e'
 Show8X16(2,81,ff);//'f'
 Show8X16(2,89,ll);//'l'
 Show8X16(2,97,aa);//'a'
 Show8X16(2,105,ss);//'s'
 Show8X16(2,113,hh);//'h'
 Show16X16(4,1,ban);//版
 Show16X16(4,17,ben);//本
 Show8X16(4,33,maohao);//'：’
 Show8X16(4,41,vv);//‘v'
 Show8X16(4,49,s1);//'1'
 Show8X16(4,57,juhao);//'.'
 Show8X16(4,65,s0);//'0'
 Show16X16(6,20,zheng);//正
 Show16X16(6,36,zai);//在
 Show16X16(6,52,chu);//初
 Show16X16(6,68,shi);//使
 Show16X16(6,84,hua);//化
 Show8X16(6,100,dian);//’。‘
 Show8X16(6,108,dian);//’。‘
 Show8X16(6,116,dian);//’。‘
}
/*----------------------------------------------------------*/

//显示第二页子程序
void LCDShow2()
{
 Show16X16(0,32,dang);//当
 Show16X16(0,48,qian);//前
 Show16X16(0,64,wen);//温
 Show16X16(0,80,du);//度
 //Show16X32(2,20,zhenghao);
 //Show16X32(2,52,ss0);
 //Show16X32(2,68,ss0);
 Show16X32(2,84,danwei_c1);//单位
 Show16X32(2,100,danwei_c2);
}
/*----------------------------------------------------------*/

//显示第三页子程序
void LCDShow3()
{
 Show16X16(0,48,she);//设 
 Show16X16(0,64,zhi);//置
 Show16X16(2,0,shang);//上
 Show16X16(2,16,xian);//限
 Show16X16(2,32,wen);//温
 Show16X16(2,48,du);//度
 Show8X16(2,64,maohao);//“：”
 ChangeTemp1(val1);//参数
 Show16X16(2,104,danwei_c);//单位
 Show16X16(4,0,xia);//下
 Show16X16(4,16,xian);//限
 Show16X16(4,32,wen);//温
 Show16X16(4,48,du);//度
 Show8X16(4,64,maohao);//“：”
 ChangeTemp2(val2);//参数
 Show16X16(4,104,danwei_c);//单位
}
/*---------------------------------------------------------*/

//LCD初始化子程序
void LCDinit()
{
 int i;
 PORTD=0x00;
 TRISB=0x00;
 PORTB=0x00;
 TRISC=0x80;
 PORTC=0x00;
 TRISC5=1;
 TRISC6=1;
 
 SetOnOff(1);//开显示
 LCDShow1();//初始画面
 for(i=30;i>0;i--)//延时
    {
        delay(201,132);                       
    }
}
/*----------------------------------------------------------*/
//主函数
void main()
{
    init();                              //调用系统初始化函数
    LCDinit();
 ClearScreen(1);//清屏
 ClearScreen(2);
 LCDShow2();//显示第二页
   while(1)
     {
       get_temp();                  //调用温度转换函数
       PORTD=TZ; 
       ChangeTemp3(TZ); 
       if(RC5==0)
       {
        while(1)
        {
         ClearScreen(1);
       ClearScreen(2);
       LCDShow3();
       while(1)//等待RC5键松开
    {
    if(RC5==1)break;
    }
    Show8X16(4,120,nono);
    Show8X16(2,120,xinghao);//显示星号，作指示
    while(1)
    {
     if(RC6==0)
     {
      val1++;
      if(val1>=128)
      {
       val1=128;
      }
    
       ChangeTemp1(val1);
     }
     if(RC7==0)
     {
      val1--;
      if(val1<=-55)
      {
       val1=-55;
      }
     ChangeTemp1(val1);
     }
     while(1)
     {
      if((RC6==1)&&(RC7==1))break;//等待键松开
     }
     if(RC5==0)break;
    }
    while(1)
    {
     if(RC5==1)break;
    }
     Show8X16(2,120,nono);
     Show8X16(4,120,xinghao);
    while(1)
    {
     if(RC6==0)
     {
      val2++;
      if(val2>=128)
      {
       val2=128;
      }
      ChangeTemp2(val2);
     }
     if(RC7==0)
     {
      val2--;
      if(val2<-55)
      {
       val2=-55;
      }
      ChangeTemp2(val2);
     }
     while(1)
     {
      if((RC6==1)&&(RC7==1))break;
     }
      if(RC5==0)break;
    }
    ClearScreen(1);
    ClearScreen(2);
    LCDShow2();
    break;
     }
    }                   
     }  
}

四.   总结

曾经因为一线总线检测存在脉冲的子程序的延时不对,低电平持续不到480uS,所以程序一直没有进展,且找不到问题原因,耽搁了好多天,昨天偶然中发现了这个原因,一下就成功了,看来还是不够仔细.

通过这个例子,我掌握了KS0108系列液晶的编程及DS18B20温度传感器的使用.但还是有很多不够完善的地方,如1.程序按键不是很灵敏,2.还可以多加些功能,3.有些子程序写得很烦.但不管怎么样,总算写出来了,有兴趣的朋友可以看一下.