LCD12864(St7920/St7921)+超声波测距模块+STC89C52

/******************************************************************************/
/* 晶振：11.0592M */
/* 接线：模块TRIG接 P1.2 ECH0 接P1.1                                       */
/* RS(CS) 接 P3.3;                                              */
/* RW(SID) 接 P3.4;                                       */
/* E(SCLK) 接 P3.5;                                           */
/* PSB 接 GND 串行模式                                       */
/******************************************************************************/
#include <AT89X51.H>
   #include <intrins.h>
//引脚定义
sbit RX = P1 ^ 1;
sbit TX = P1 ^ 2;
sbit CS = P3 ^ 3;   //片选高电平有效单片LCD使用时可固定高电平
sbit SID = P3 ^ 4;   //数据
sbit SCLK = P3 ^ 5;   //时钟

//Function Definition　函数声明
void Delay(int num);
void Init_DS18B20(void);
unsigned char ReadOneChar(void);
void WriteOneChar(unsigned char dat);
unsigned int ReadTemperature(void);
void clock_out(unsigned char dd);
unsigned char clock_in(void);
unsigned char read_clock(unsigned char ord);
void write_clock(unsigned char ord, unsigned char dd);
void Disp(void);
void id_case1_key(void);
void id_case2_key(void);
void Set_time(unsigned char sel,bit sel_1);
void Timer0_Init(void);
void Init_1302(void);
void Set_Bell(unsigned char sel, bit sel_1);
void Bell(void);
//12864
void Write_char(bit start, unsigned char ddata);
void Send_byte(unsigned char bbyte);
void Delaynms(unsigned int di);
void Lcd_init(void);
void Disp_img(unsigned char *img);
void LCD_Write_string(unsigned char X,unsigned char Y,unsigned char *s);
void LCD_set_xy( unsigned char x, unsigned char y );
unsigned char code num[]={"0123456789 :.-"};
unsigned char code waves[]={"超声波测距系统"};
unsigned char code znwk[] ={"智能微控工作室"};
unsigned char code CM[] = {"M"};
unsigned int time=0;
long S=0;
bit flag =0;
unsigned char disbuff[4] ={ 0,0,0,0,};
unsigned char code logo[]={
/*-- 调入了一幅图像：logo.bmp -- */
/*-- 宽度x高度=128x64 欢迎使用本产品LOGO --*/
/*-- 调入了一幅图像：C:\Documents and Settings\lwd\桌面\新建文件夹\X.bmp --*/
/*-- 宽度x高度=128x64 --*/
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,
0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xE0,0x00,0x00,0x0C,0x00,0x00,0x40,0x70,0x00,0x00,0x00,0x80,0x00,
0x00,0x00,0x00,0xE0,0x00,0x00,0x1E,0x00,0x00,0x60,0x70,0x00,0x00,0x0F,0xE0,0x00,
0x00,0x00,0x01,0xC0,0x00,0x60,0x3C,0x00,0x00,0xE0,0x60,0x00,0x1F,0xFF,0xE0,0x00,
0x00,0x00,0x03,0x80,0x00,0x70,0x70,0x40,0x00,0xE0,0x7E,0x00,0x1F,0xE0,0xC0,0x00,
0x00,0x00,0x03,0x00,0x00,0x73,0xC3,0xF0,0x01,0xC3,0xFC,0x00,0x38,0xE1,0xC0,0x00,
0x00,0x03,0xC6,0x3C,0x00,0x33,0x9F,0xF0,0x03,0x8F,0xC0,0x00,0x30,0xC1,0xC0,0x00,
0x00,0x3F,0xEF,0xFE,0x00,0x03,0x1C,0xE0,0x07,0x01,0xCC,0x00,0x31,0xF1,0x80,0x00,
0x00,0x79,0xDF,0xBC,0x00,0x06,0x18,0xC0,0x0E,0x01,0xFE,0x00,0x77,0xF9,0x80,0x00,
0x00,0x01,0xB0,0x30,0x01,0xC6,0x19,0xC0,0x1E,0x7F,0xDE,0x00,0x6F,0x83,0x80,0x00,
0x00,0x23,0xAC,0x60,0x0F,0xE6,0xF1,0x80,0x3E,0x7B,0x38,0x00,0x61,0x83,0x00,0x00,
0x00,0x37,0x0E,0x00,0x0F,0xC7,0xB7,0x80,0xEC,0x63,0x30,0x00,0xE3,0x03,0x00,0x00,
0x00,0x3E,0x0E,0x00,0x01,0x8F,0x37,0x01,0xCC,0x6F,0xF0,0x00,0xC7,0xF7,0x00,0x00,
0x00,0x1E,0x0C,0x00,0x03,0x1E,0x66,0x03,0x0C,0x7F,0x00,0x01,0xFF,0xE6,0x00,0x00,
0x00,0x1E,0x1C,0x00,0x03,0x1C,0x60,0x02,0x19,0xAC,0x00,0x01,0x96,0x06,0x00,0x00,
0x00,0x3E,0x3E,0x00,0x03,0x18,0x60,0x00,0x19,0xFC,0x00,0x03,0x86,0x0E,0x00,0x00,
0x00,0x7E,0x36,0x00,0x03,0x00,0xC0,0x00,0x38,0x78,0x00,0x03,0x06,0x0C,0x00,0x00,
0x00,0xE6,0x67,0x00,0x03,0x00,0xC0,0x00,0x30,0x78,0x00,0x06,0x0C,0x0C,0x00,0x00,
0x01,0xC6,0xC3,0x80,0x7F,0xF0,0xC0,0x00,0x30,0xFE,0x00,0x0E,0x0C,0x1C,0x00,0x00,
0x03,0x81,0x83,0xC0,0x78,0xFF,0x80,0x00,0x61,0xCF,0x80,0x1C,0x08,0x18,0x00,0x00,
0x06,0x07,0x03,0xE0,0x00,0x1F,0xFF,0xE0,0x67,0x07,0xE0,0x38,0x18,0xF8,0x00,0x00,
0x08,0x0E,0x01,0xF8,0x00,0x07,0xFF,0x80,0xCE,0x03,0xF8,0x60,0x00,0x70,0x00,0x00,
0x00,0x18,0x01,0xF8,0x00,0x01,0xFC,0x00,0xC0,0x01,0xFC,0xC0,0x00,0x70,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x06,0x00,0x00,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x07,0x00,0x00,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x06,0x00,0x00,0x00,0x0C,0xE0,0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x0E,0x00,0x00,0x00,0x3F,0xE0,0x00,0xFF,0xF0,0x00,0x38,0x00,0xE0,0x00,
0x00,0x00,0x0C,0x00,0x00,0x0F,0xFF,0x80,0x00,0xF8,0xF0,0x00,0x38,0x00,0xE0,0x00,
0x00,0x00,0x0C,0xF0,0x00,0x0F,0xC7,0x00,0x00,0x60,0xE0,0x00,0x38,0x00,0xE0,0x00,
0x00,0x00,0x1F,0xF0,0x00,0x01,0x8E,0x00,0x00,0x60,0xC0,0x00,0x70,0x01,0xC0,0x00,
0x00,0x07,0xFF,0x80,0x00,0x01,0x8C,0x00,0x00,0xE1,0x80,0x00,0x70,0x01,0xC0,0x00,
0x00,0x07,0xF8,0x00,0x00,0x01,0x98,0x00,0x00,0xDF,0xC0,0x00,0x70,0x01,0xC0,0x00,
0x00,0x00,0x78,0x00,0x00,0x01,0xBF,0xE0,0x00,0xFF,0x00,0x00,0x60,0x01,0x80,0x00,
0x00,0x00,0xFC,0x00,0x00,0x7F,0xFF,0xE0,0x00,0xC0,0x00,0x00,0xE0,0x03,0x80,0x00,
0x00,0x01,0xFE,0x00,0x00,0x7F,0xF8,0x00,0x00,0x00,0x00,0x00,0xC0,0x03,0x00,0x00,
0x00,0x03,0xB7,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x3C,0x00,0xC0,0x03,0x00,0x00,
0x00,0x07,0x67,0x00,0x00,0x60,0x00,0x00,0x03,0x9F,0xFE,0x00,0x80,0x02,0x00,0x00,
0x00,0x0E,0x63,0x80,0x00,0xE0,0x00,0x01,0xFF,0xCF,0x1E,0x01,0x80,0x06,0x00,0x00,
0x00,0x1C,0xE1,0xE0,0x00,0xC0,0x00,0x00,0xE3,0x9C,0x38,0x01,0x80,0x06,0x00,0x00,
0x00,0x38,0xC1,0xF8,0x01,0xC0,0x00,0x00,0xC3,0x18,0x30,0x00,0x00,0x00,0x00,0x00,
0x00,0xE0,0xFC,0xFE,0x03,0x80,0x00,0x01,0xC7,0x18,0x60,0x00,0x00,0x00,0x00,0x00,
0x01,0xDF,0xF8,0xFE,0x03,0x00,0x00,0x01,0x8E,0x1B,0xE0,0x07,0x00,0x1C,0x00,0x00,
0x07,0x07,0x80,0x00,0x07,0x00,0x00,0x01,0xFF,0x3F,0xE0,0x07,0x00,0x1C,0x00,0x00,
0x0C,0x03,0x80,0x00,0x0E,0x00,0x00,0x01,0xF0,0x38,0x00,0x0F,0x00,0x3C,0x00,0x00,
0x00,0x03,0x00,0x00,0x1C,0x00,0x00,0x01,0x00,0x20,0x00,0x06,0x00,0x18,0x00,0x00,
0x00,0x03,0x00,0x00,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x03,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x02,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

/******************************************************************************/
void Lcd_init(void)   //初始化LCD
{
   Delaynms(10); //启动等待，等LCM讲入工作状态
   CS=1;
   Write_char(0,0x30); //8 位介面，基本指令集
   Write_char(0,0x0c); //显示打开，光标关，反白关
   Write_char(0,0x01); //清屏，将DDRAM的地址计数器归零
}

/******************************************************************************/
void Write_char(bit start, unsigned char ddata) //写指令或数据
{
   unsigned char start_data,Hdata,Ldata;
   if(start==0)
       start_data=0xf8;   //写指令
else
   start_data=0xfa; //写数据

   Hdata=ddata&0xf0;       //取高四位
   Ldata=(ddata<<4)&0xf0; //取低四位
   Send_byte(start_data);   //发送起始信号
   Delaynms(5); //延时是必须的
   Send_byte(Hdata);   //发送高四位
   Delaynms(1); //延时是必须的
   Send_byte(Ldata);       //发送低四位
   Delaynms(1); //延时是必须的
}

/******************************************************************************/
void Send_byte(unsigned char bbyte) //发送一个字节
{
   unsigned char i;
    for(i=0;i<8;i++)
    {
        SID=bbyte&0x80; //取出最高位
        SCLK=1;
        SCLK=0;
        bbyte<<=1; //左移
    }
}

/******************************************************************************/
void Delaynms(unsigned int di) //延时
{
   unsigned int da,db;
    for(da=0;da<di;da++)
        for(db=0;db<10;db++);
}

/******************************************************************************/
void Disp_img(unsigned char *img)   //图形方式12864显示字模221 横向取膜
{
   unsigned char i,j;
   unsigned int k = 0;

   Write_char(0,0x36); //图形方式
   for(i=0;i<32;i++)
   {
       Write_char(0,0x80+i);
       Write_char(0,0x80);
   for(j=0;j<16;j++)
       {
           Write_char(1,img[k++]);
       }
   }

    for(i=0;i<32;i++)
   {
       Write_char(0,0x80+i);
       Write_char(0,0x88);
   for(j=0;j<16;j++)
       {
           Write_char(1,img[k++]);
       }
   }
}

/******************************************************************************/
void Clr_Scr(void)//清屏函数
{
   Write_char(0,0x01);
}

/******************************************************************************/
void LCD_set_xy( unsigned char x, unsigned char y )
{   //设置LCD显示的起始位置，X为行，Y为列
unsigned char address;
   switch(x)
   {
       case 0: address = 0x80 + y; break;
   case 1: address = 0x80 + y; break;
       case 2: address = 0x90 + y; break;
       case 3: address = 0x88 + y; break;
       case 4: address = 0x98 + y; break;
       default:address = 0x80 + y; break;
   }
Write_char(0, address);
}

/******************************************************************************/
void LCD_Write_string(unsigned char X,unsigned char Y,unsigned char *s)
{   //   中英文字符串显示函数
   LCD_set_xy( X, Y );

while (*s)
{
       Write_char( 1, *s );
   s ++;
       Delaynms(1);
   }
}

/******************************************************************************/
void LCD_Write_number(unsigned char s)//   数字显示函数
{
   Write_char(1,num[s]);
   Delaynms(1);
}
/******************************************************************************/
void Lcd_Mark2(void)
{
   Clr_Scr();//清屏
   LCD_Write_string(1,0,znwk);//
   LCD_Write_string(2,0,waves);//
   LCD_Write_string(3,7,CM);//
}

/********************************************************/
void Conut(void)
   {
   time=TH0*256+TL0;
   TH0=0;
   TL0=0;
   S=time*1.87/100; //算出来是CM   11。0592M晶振
   if(flag==1)       //超出测量
   {
   flag=0;
   LCD_set_xy( 3, 4 );
   LCD_Write_number(13);
   LCD_Write_number(12);
   LCD_set_xy( 3, 5 );
   LCD_Write_number(13);
   LCD_Write_number(13);

   }
   else
   {
   disbuff[1]=S%1000/100;
   disbuff[2]=S%1000%100/10;
   disbuff[3]=S%1000%10 %10;
   LCD_set_xy( 3, 4 );
   LCD_Write_number(disbuff[1]);
   LCD_Write_number(12);
   LCD_set_xy( 3, 5 );
   LCD_Write_number(disbuff[2]);
   LCD_Write_number(disbuff[3]);
   }
   }
/********************************************************/
void delayms(unsigned int ms)
{
   unsigned char i=100,j;
   for(;ms;ms--)
   {
       while(--i)
       {
           j=10;
           while(--j);
       }
   }
}
/********************************************************/
void zd0() interrupt 1        //T0中断用来计数器溢出,超过测距范围
{
flag=1;                           //中断溢出标志
}
/********************************************************/
void StartModule()        //T1中断用来扫描数码管和计800MS启动模块
{
   TX=1;           //800MS 启动一次模块
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   _nop_();
   TX=0;
}
/********************************************************/
void main(void)
{
TMOD=0x01;       //设T0为方式1，GATE=1
   TH0=0;
   TL0=0;
   TR0=1;

   Lcd_init(); //设置液晶显示器
   Clr_Scr(); //清屏
   Disp_img(logo);   //显示欢迎使用本产品LOGO
   Delaynms(1000);
   Lcd_init(); //从图形显示状态下返回
Lcd_Mark2();

   while(1)
   {
   StartModule();
              //计算
   while(!RX);       //当RX为零时等待
   TR0=1;           //开启计数
   while(RX);           //当RX为1计数并等待
   TR0=0;               //关闭计数
   Conut();
   delayms(80);       //80MS

}

LCD12864(St7920/St7921)+超声波测距模块+STC89C52

相关推荐

最近更新

热门阅读