超声波测距51单片机12864液晶显示.docx
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超声波测距51单片机12864液晶显示
超声波测距51单片机12864液晶显示
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。
超声波测距51单片机12864液晶显示源程序：
#include
#include
//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
//FunctionDefinition 函数声明
voidDelay（intnum）;
voidInit_DS18B20（void）;
unsignedcharReadOneChar（void）;
voidWriteOneChar（unsignedchardat）;
unsignedintReadTemperature（void）;
voidclock_out（unsignedchardd）;
unsignedcharclock_in（void）;
unsignedcharread_clock（unsignedcharord）;
voidwrite_clock（unsignedcharord,unsignedchardd）;
voidDisp（void）;
voidid_case1_key（void）;
voidid_case2_key（void）;
voidSet_time（unsignedcharsel,bitsel_1）;
voidTimer0_Init（void）;
voidInit_1302（void）;
voidSet_Bell（unsignedcharsel,bitsel_1）;
voidBell（void）;
//12864
voidWrite_char（bitstart,unsignedcharddata）;
voidSend_byte（unsignedcharbbyte）;
voidDelaynms（unsignedintdi）;
voidLcd_init（void）;
voidDisp_img（unsignedchar*img）;
voidLCD_Write_string（unsignedcharX,unsignedcharY,unsignedchar*s）;
voidLCD_set_xy（unsignedcharx,unsignedchary）;
unsignedcharcodenum[]={"0123456789:
.-"};
unsignedcharcodewaves[]={"超声波测距系统"};
unsignedcharcodeznwk[]={"智能微控工作室"};
unsignedcharcodeCM[]= {"M"};
unsignedint time=0;
longS=0;
bit flag=0;
unsignedchardisbuff[4] ={0,0,0,0,};
unsignedcharcodelogo[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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,
};
voidLcd_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
}
voidWrite_char（bitstart,unsignedcharddata）//写指令或数据
{
unsignedcharstart_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
}
voidSend_byte（unsignedcharbbyte）//发送一个字节
{
unsignedchari;
for（i=0;i<8;i++）
{
SID=bbyte&0x80;//取出最高位
SCLK=1;
SCLK=0;
bbyte<<=1;//左移
}
}
voidDelaynms（unsignedintdi）//延时
{
unsignedintda,db;
for（da=0;da
for（db=0;db<10;db++）;
}
voidDisp_img（unsignedchar *img） //图形方式12864显示字模221横向取膜
{
unsignedchari,j;
unsignedintk=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++]）;
}
}
}
voidClr_Scr（void）//清屏函数
{
Write_char（0,0x01）;
}
voidLCD_set_xy（unsignedcharx,unsignedchary）
{ //设置LCD显示的起始位置，X为行，Y为列
unsignedcharaddress;
switch（x）
{
case0:
address=0x80+y;break;
case1:
address=0x80+y;break;
case2:
address=0x90+y;break;
case3:
address=0x88+y;break;
case4:
address=0x98+y;break;
default:
address=0x80+y;break;
}
Write_char（0,address）;
}
voidLCD_Write_string（unsignedcharX,unsignedcharY,unsignedchar*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）;
}
}
voidLCD_Write_number（unsignedchars）// 数字显示函数
{
Write_char（1,num[s]）;
Delaynms
（1）;
}
voidLcd_Mark2（void）
{
Clr_Scr（）;//清屏
LCD_Write_string（1,0,znwk）;//
LCD_Write_string（2,0,waves）;//
LCD_Write_string（3,7,CM）;//
}
voidConut（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]=S00/100;
disbuff[2]=S000/10;
disbuff[3]=S00;
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]）;
}
}
voiddelayms（unsignedintms）
{
unsignedchari=100,j;
for（;ms;ms--）
{
while（--i）
{
j=10;
while（--j）;
}
}
}
voidzd0（）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
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