- /******************************************************************************/
- /* 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 <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
- }
- }
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