51单片机-超声波测距程序

单片机

今天弄了一下以前买的超声波测距的模块，51单片机接上12864液晶，HC-SR04超声波模块，就可以了，贴个程序吧

源程序：

/******************************************************************************/

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

/* HC-SR04 超声波测距模块 DEMO 程序 */

/* 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

//引脚定义

***it RX = P1 ^ 1;

***it TX = P1 ^ 2;

***it CS = P3 ^ 3; //片选高电平有效单片LCD使用时可固定高电平

***it SID = P3 ^ 4; //数据

***it 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 charord);

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,bitsel_1);

void Timer0_Init(void);

void Init_1302(void);

void Set_Bell(unsigned char sel, bitsel_1);

void Bell(void);

//12864

void Write_char(bit start, unsigned charddata);

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 charX,unsigned char Y,unsigned char *s);

void LCD_set_xy( unsigned char x,unsigned char y );

unsigned char codenum[]={"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;

longS=0;

bit flag =0;

unsigned char di***uff[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 Settingslwd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,

0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,

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,

0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

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,

};

/******************************************************************************/

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 charddata) //写指令或数据

{

unsignedchar 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

{

unsignedchar 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

{

unsignedint da,db;

for(da=0;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

{

unsignedchar i,j;

unsignedint 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)

{

case0: address = 0x80 + y; break;

case 1: address = 0x80 + y; break;

case2: address = 0x90 + y; break;

case 3: address =0x88 + y; break;

case4: address = 0x98 + y; break;

default:address= 0x80 + y; break;

}

Write_char(0, address);

}

/******************************************************************************/

void LCD_Write_string(unsigned charX,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);

~~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);~~

}

~~else~~

{

~~di***uff[1]=S%1000/100;~~

~~di***uff[2]=S%1000%100/10;~~

~~di***uff[3]=S%1000%10 %10;~~

~~LCD_set_xy( 3, 4 );~~

~~LCD_Write_number(di***uff[1]);~~

~~LCD_Write_number(12);~~

~~LCD_set_xy( 3, 5 );~~

~~LCD_Write_number(di***uff[2]);~~

~~LCD_Write_number(di***uff[3]);~~

}

~~/********************************************************/~~

~~void delayms(unsigned int ms)~~

{

~~unsignedchar i=100,j;~~

~~for(;ms;ms--)~~

{

~~while(--i)~~

{

~~j=10;~~

~~while(--j);~~

}

~~/********************************************************/~~

~~void zd0() interrupt1 //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_();~~

~~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~~

}

聂风 · 2015-9-17 12:20:21

感谢分享！！！！

HelloWii · 2015-9-17 13:02:20

黄涌 · 2015-9-18 12:08:29

HelloWii 发表于 2015-9-17 13:02

这表情。。。。。

HelloWii · 2015-9-18 12:29:34

hyg_shen_hua 发表于 2015-9-18 12:08
这表情。。。。。

只贴程序不太好吧。。哇咔咔，，期待楼主讲解下

黄涌 · 2015-9-21 14:50:07

HelloWii 发表于 2015-9-18 12:29
只贴程序不太好吧。。哇咔咔，，期待楼主讲解下

还用讲解呀~复制粘贴都能用啦~

6^#

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