51+Nokia5110

#include<reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit DQ=P2^2;
uint wendu;
sbit    sce = P1^3;  //片选
sbit    res = P1^4;  //复位,0复位
sbit    dc  = P1^2;  //1写数据，0写指令
sbit    sdin = P1^1;  //数据
sbit    sclk = P1^0;  //时钟
/*------------------------------------shuzihanzi-----------------------------------*/
unsigned char code shuzi[]={
//0
0xF8,0x04,0x04,0x04,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//1
0x00,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,
//
0x18,0x84,0x44,0x44,0x38,0x00,0x03,0x02,0x02,0x02,0x02,0x00,
//3
0x88,0x04,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//4
0xC0,0xB0,0x88,0xFC,0x80,0x00,0x00,0x00,0x00,0x03,0x00,0x00,
//5
0x3C,0x14,0x14,0x14,0xE4,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//6
0xF8,0x24,0x24,0x24,0xC8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//7
0x04,0x04,0x04,0xE4,0x1C,0x00,0x00,0x00,0x03,0x00,0x00,0x00,
//8
0xD8,0x24,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//9
0x38,0x44,0x44,0x44,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//'
0x00,0x00,0x04,0x0A,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//C
0xF8,0x04,0x04,0x04,0x98,0x00,0x01,0x02,0x02,0x02,0x01,0x00,
//.
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,
//:
0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,
//T
0x04,0x04,0xFC,0x04,0x04,0x00,0x00,0x00,0x03,0x00,0x00,0x00
};
unsigned char code hanzi[]={
0x22,0x44,0x00,0xC0,0x5F,0xD5,0x55,0xD5,0x5F,0xC0,0x00,0x00,0x04,
0x02,0x09,0x0F,0x08,0x0F,0x08,0x0F,0x08,0x0F,0x08,0x00,/*"温",0*/

0x00,0xFE,0x0A,0x8A,0xBE,0xAA,0xAB,0xAA,0xBE,0x8A,0x0A,0x00,0x08,
0x07,0x00,0x08,0x09,0x0A,0x04,0x04,0x0A,0x09,0x08,0x00,/*"度",1*/

0x11,0x22,0x80,0x3E,0x2A,0xEA,0x2A,0xEA,0x2A,0x3E,0x80,0x00,0x04,
0x02,0x08,0x09,0x08,0x0F,0x08,0x0F,0x08,0x09,0x08,0x00,/*"湿",2*/

0x00,0xFE,0x0A,0x8A,0xBE,0xAA,0xAB,0xAA,0xBE,0x8A,0x0A,0x00,0x08,
0x07,0x00,0x08,0x09,0x0A,0x04,0x04,0x0A,0x09,0x08,0x00,/*"度",3*/

0x20,0x22,0x24,0xE8,0x20,0x3F,0x20,0xE8,0x24,0x22,0x20,0x00,0x08,
0x04,0x02,0x01,0x00,0x00,0x00,0x07,0x08,0x08,0x0E,0x00,/*"光",4*/

0xF2,0x92,0x9E,0x00,0xE0,0x2F,0x29,0xF9,0x29,0x2F,0xE0,0x00,0x08,
0x08,0x07,0x00,0x09,0x09,0x09,0x0F,0x09,0x0D,0x09,0x00,/*"强",5*/
};
/*--------------------------5110驱动------------------------------*/
/**********************延时函数************************/
void delayus(uint z)  //微妙级延时
{
uint y;
for(y=z;y>0;y--);
}
void delayms(uint z)  //毫秒级延时
{
uint x,y;
for(y=z;y>0;y--)
 for(x=1400;x>0;x--);
}
/********************写字节**************************/
void LCD_write_byte(unsigned char dt, unsigned char command)  //写字节
{
unsigned char i;
sce=0;    //5110片选有效，允许输入数据
dc=command;     //0写指令，1写数据
for(i=0;i<8;i++)   //传送8bit数据
{
 if(dt&0x80)
  sdin=1;
 else
  sdin=0;
 dt=dt<<1;  
 sclk=0;   
 sclk=1;
} 
dc=1; 
sce=1;     //禁止5110
sdin=1;
}
/*******************初始化********************************************/
void LCD_init(void)  //初始化（command=0，写指令）
 {
  res=0;   
  delayms(1);
  res=1; 
  LCD_write_byte(0x21,0);//初始化Lcd,功能设定使用扩充指令
  LCD_write_byte(0xa0,0);//设定液晶偏置电压(5v)，5110接5V时偏置电压改为（0xa7,0）,接3.3V时改为（0xc0,0）
  LCD_write_byte(0x20,0);//使用基本指令
  LCD_write_byte(0x0C,0);//设定显示模式，正常显示
 }
/*********************设置初始坐标************************************/
void LCD_set_XY(unsigned char X, unsigned char Y)  //设置LCD坐标，X:0-83 Y:0-5
{
LCD_write_byte(0x40 | Y, 0);// column  //列
LCD_write_byte(0x80 | X, 0);// row   //行
}
/**********************清屏函数***************************************/
void LCD_clear(void)    //LCD清屏函数 
{
  unsigned char t;
  unsigned char k;
  LCD_set_XY(0,0);   //设置RAM起始地址
  for(t=0;t<6;t++)
  {
   for(k=0;k<84;k++)
   {
    LCD_write_byte(0x00,1);    //写数据
   }
  }
}
/****************************输入数字**************************************/
void LCD_write_shu(unsigned char row, unsigned char page,unsigned char c) //row:列 page:页 dd:字符，page范围为0-5，
{
 unsigned char i;   
 LCD_set_XY(row*6, page);// 列，页
 for(i=0; i<6;i++)
 {
  LCD_write_byte(shuzi[c*12+i],1);
 }

  LCD_set_XY(row*6, page+1);// 列，页
  for(i=6; i<12;i++)
  {
   LCD_write_byte(shuzi[c*12+i],1);
  }   
}
/******************************输入汉字*************************************/
void LCD_write_zi(unsigned char row, unsigned char page,unsigned char c)
{
 unsigned char i;   
 LCD_set_XY(row*6, page);// 列，页
 for(i=0; i<12;i++)
 {
  LCD_write_byte(hanzi[c*24+i],1);
 }

  LCD_set_XY(row*6, page+1);// 列，页
  for(i=12; i<24;i++)
  {
   LCD_write_byte(hanzi[c*24+i],1);
  }   
}

/*-----------------------------------------18b20驱动--------------------------------*/
/*************精确延时函数**************** */
//                          数据表如下
/*
********************************************************************************************************************
延时时间      a的值     b的值       c的值     延时误差（us）
10us          1           1           1            -0.5    
20us          1           1           8            0  
30us          1           1           15           +0.5 
40us          2           1           9            0  
50us          1           1           28            0  
60us          1           1           35           +0.5 
70us          1           1           42           +1 
80us          1           1           48            0 
90us          1           1           55           +0.5  
100us         1           1           61           -0.5  
200us         1           1           128           0  
300us         3           1           63           +1.5  
400us         2           1           129           0  
500us         5           1           63           +0.5  
600us         6           1           63            0  
700us         7           1           63            -0.5  
800us         1           3           175           +0.5  
900us         9           1           63            -1.5  
1ms           1           3           219           -1.5
2ms           2           3           220           +3
3ms           3           3           220           +3
Xms           X           3           220           +3     
       (X的范围为2到255)
*/
void Delay(unsigned char a1,b1,c1)
{
 unsigned char a,b,c;
for(a=0;a<a1;a++)
for(b=0;b<b1;b++)
for(c=0;c<c1;c++);
}
/*****************DS18B20******************/ 
void Init_Ds18b20(void)     //DS18B20初始化send reset and initialization command
  {
   DQ = 1;                        //DQ复位,不要也可行。
   Delay(1,1,1);                  //稍做延时  10us
   DQ = 0;                        //单片机拉低总线
   Delay(6,1,63); //600  us       //精确延时，维持至少480us
                                  //Delay(1,1,15); //20us
   DQ = 1;                           //释放总线，即拉高了总线
   Delay(5,1,63);                    //500us               //此处延时有足够,确保能让DS18B20发出存在脉冲。
      }
    uchar Read_One_Byte()       //读取一个字节的数据read a byte date
                                //读数据时,数据以字节的最低有效位先从总线移出
   {
       uchar i   = 0;
       uchar dat = 0;
        for(i=8;i>0;i--)
         {
             DQ = 0;                  //将总线拉低，要在1us之后释放总线
                           //单片机要在此下降沿后的15us内读数据才会有效。
             _nop_();                 //至少维持了1us,表示读时序开始
             dat >>= 1;               //让从总线上读到的位数据，依次从高位移动到低位。
             DQ = 1;                  //释放总线，此后DS18B20会控制总线,把数据传输到总线上
             Delay(1,1,1);        //延时10us,此处参照推荐的读时序图，尽量把控制器采样时间放到读时序后的15us内的最后部分
             if(DQ)                   //控制器进行采样
               {
                 dat |= 0x80;            //若总线为1,即DQ为1,那就把dat的最高位置1;若为0,则不进行处理,保持为0
                   }        
   Delay(1,1,8);       //20us        //此延时不能少，确保读时序的长度60us。
}
return (dat);
}
void Write_One_Byte(uchar dat)
{
uchar i = 0;
for(i=8;i>0;i--)
{
   DQ = 0;                        //拉低总线
   _nop_();                       //至少维持了1us,表示写时序(包括写0时序或写1时序)开始
   DQ = dat&0x01;                 //从字节的最低位开始传输
                                 //指令dat的最低位赋予给总线,必须在拉低总线后的15us内,
                                 //因为15us后DS18B20会对总线采样。
   Delay(1,1,15);               //必须让写时序持续至少60us
   DQ = 1;                        //写完后,必须释放总线,
   dat >>= 1;
   Delay(1,1,1);
}
}

void Get_Tmp_dispaly()                   //获取温度get the wenduerature
{
uchar A1,A2,A3;
float tt;
uchar a,b;
Init_Ds18b20();                //初始化
Write_One_Byte(0xcc);          //忽略ROM指令
Write_One_Byte(0x44);          //温度转换指令
Init_Ds18b20();                 //初始化
Write_One_Byte(0xcc);          //忽略ROM指令
Write_One_Byte(0xbe);          //读暂存器指令
a = Read_One_Byte();           //读取到的第一个字节为温度LSB
b = Read_One_Byte();           //读取到的第一个字节为温度MSB
wendu = b;                      //先把高八位有效数据赋于wendu
wendu <<= 8;                    //把以上8位数据从wendu低八位移到高八位
wendu = wendu|a;                //两字节合成一个整型变量
tt = wendu*0.0625;              //得到真实十进制温度值
                                //因为DS18B20可以精确到0.0625度
                                //所以读回数据的最低位代表的是0.0625度
wendu = tt*10+0.5;               //放大十倍
                                //这样做的目的将小数点后第一位也转换为可显示数字
                                //同时进行一个四舍五入操作。
A1 = wendu/100;    //百位
A2 = wendu%100/10;   //十位
A3 = wendu%10;    //个位
LCD_write_shu(6,2,A1);  //得到十位数
LCD_write_shu(7,2,A2 );  //得到个位数
LCD_write_shu(9,2,A3);   //得到个位数
}
void main()
{
  unsigned char k,i;
  res=0;
  for(k=0;k<250;k++);
  res=1;    
  LCD_init();  //初始化LCD模块
  LCD_clear(); //清屏幕
  LCD_write_shu(8,2,12); //点
  LCD_write_shu(10,2,10);//ling
  LCD_write_shu(11,2,11); //C
  //LCD_write_shu(5,0,13);
 // LCD_write_zi(1,0,0);    //温
  //LCD_write_zi(3,0,1);    //度
  LCD_write_zi(1,2,0); //wen
  LCD_write_zi(3,2,3);//度
  //LCD_write_shu(5,2,13);
  //LCD_write_zi(1,4,4); //guang
  //LCD_write_zi(3,4,5);    //qiang
  LCD_write_shu(5,2,13); //强冒 
  while(1)
  {
   Get_Tmp_dispaly();
  }
 }