PIC单片机实例四温度测量系统的设计与仿真 - 图文

PIC单片机实例四:温度测量系统的设计与仿真 2008-01-08 17:18

分类：单片机 字号： 大 中 小

引言

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(\

#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,0x24,0x24,0x24,0x04,0x00,0x80,0

x60,0x1F,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,0x00,0x04,0x

FC,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,0x81,0x01,0x01,0x00,0x00,0x00,0x4

0,0x21,0x13,0x09,0x05,0x41,0x81,0x7F,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,0x48,0x48,0x48,0x68,0x48,0x08,0x00,0x00,0x

00,0x00,0xFF,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,0x64,0x24,0x34,0x28,0x26,0x24,0x20,0x00,0x04,0x

04,0x04,0x02,0x02,0xFF,0x49,0x49,0x49,0x49,0x49,0x49,0xFF,0x00,0x00,0x00};//者

const unsigned char

ban[]={0x00,0xFE,0x90,0x90,0x9E,0x10,0x10,0xFE,0xE2,0x22,0x22,0x21,0xE1,0x21,0x00,0x00,0x40,0

x3F,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,0x18,0x68,0x88,0x08,0x08,0x08,0x08,0x00,0x08,0x

08,0x04,0x02,0x05,0x04,0x04,0x7F,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,0x87,0x84,0x84,0xE4,0x84,0x84,0x84,0x84,0x04,0x00,0x04,0x

02,0x01,0x7F,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,0x08,0x00,0x02,0

x01,0x00,0x7F,0x01,0x02,0x44,0x20,0x10,0x0C,0x03,0x20,0x40,0x3F,0x00,0x00};//初

const unsigned char

shi[]={0x10,0x90,0x70,0x1F,0x12,0xF0,0x00,0x20,0x70,0x28,0x27,0x22,0x28,0x70,0x20,0x00,0x40,0x2

1,0x12,0x0C,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,0x08,0x00,0x00,0x00,0

x00,0x00,0x7F,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,0x22,0x62,0xC2,0x82,0x02,0x03,0x02,0x00,0x00,0x

00,0x00,0x00,0x00,0x00,0x00,0x7F,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,0x08,0x08,0x08,0x08,0x08,0x00,0x04,0x

04,0xFE,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,0x56,0xD2,0x12,0x12,0x10,0x00,0x00,0x2

0,0x38,0x03,0x3A,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,0xC0,0x40,0x40,0x00,0x00,0

x00,0x7F,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,0x20,0x00,0x00,0x80,0

x80,0x80,0xFF,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,0x88,0x88,0x88,0x08,0x08,0x00,0x00,0

xFF,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,0x40,0x00,0x00,0x00,0x11,0x

11,0x09,0x09,0xFD,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,0xA1,0xA9,0xA5,0x80,0x00,0x0

0,0x0F,0x04,0x04,0x4F,0x20,0x58,0x46,0x27,0x2A,0x12,0x1A,0x26,0x62,0x20,0x00};//暖

const unsigned char

nononono[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x

00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//

const unsigned char

danwei_c[]={0x00,0x02,0x05,0xE2,0x18,0x04,0x02,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,0x

00,0x00,0x00,0x07,0x18,0x20,0x40,0x40,0x40,0x40,0x40,0x40,0x20,0x18,0x00,0x00};//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};/*\

const unsigned

char s3[]={0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00};/*\

\

const unsigned char

s4[]={0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00};/*\

const unsigned char

s5[]={0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00};/*\

const unsigned char

s6[]={0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00};/*\

const unsigned char

s7[]={0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00};/*\

const unsigned char

s8[]={0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00};/*\

const unsigned

char s9[]={0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00};/*\

\

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,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x0

0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//'+'

const unsigned char

fuhao[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0

0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//'-'

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,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x0

6,0x04,0x04,0x04,0x06,0x03,0x01,0x00,0x00,0x00};//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,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x04,0x0

6,0x07,0x07,0x06,0x04,0x04,0x04,0x00,0x00,0x00};//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,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x07,0x06,0x06,0x06,0x0

6,0x06,0x06,0x06,0x06,0x06,0x07,0x01,0x00,0x00};//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,0x78,0x00,0x00,0x00,0x00,0x01,0x03,0x02,0x04,0x0

4,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00,0x00};//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,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0

8,0x08,0x08,0x0F,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,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x

06,0x04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00};//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,0xF8,0x00,0x00,0x00,0x00,0x01,0x03,0x02,0x04,0x

04,0x04,0x04,0x04,0x02,0x03,0x01,0x00,0x00,0x00};//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,0x00,0x00,0x00,0x00,0x03,0x03,0x04,0x04,0x0

4,0x04,0x06,0x03,0x01,0x00,0x00,0x00,0x00,0x00};//9

const unsigned char

nonono[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x

00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//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,0xf0,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x

00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03};//℃

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,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x06,0x06,0x06,0x06,0x0

6,0x06,0x02,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00};

/*------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/

////////////////////////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=columnd; //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=columnd; 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=columnd; //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=columnd; 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=columnd; //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=columnd; 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=columnd; 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=columnd; 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; //取个位 D_shi=val0/10; //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; D_shi=val0/10; 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; D_shi=val0/10; 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

本文来源：https://www.bwwdw.com/article/siow.html