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標(biāo)題: 自行車測(cè)速源程序 [打印本頁]

作者: 上帝視角 時(shí)間: 2017-5-15 21:31
標(biāo)題: 自行車測(cè)速源程序

#include<reg52.h>

#include <intrins.h>

#define uint unsigned int

#define uchar unsigned char

void delay(uint z)

{

uint a,b;

for(a=z;a>0;a--)

for(b=60;b>0;b--);

}

sbit LcdRs = P2^0;

sbit LcdRw = P2^1;

sbit LcdEn = P2^2;

#define DBPort P0

#define LCD_COMMAND 0

#define LCD_DATA 1

#define LCD_CLEAR_SCREEN 0x01

#define LCD_HOMING 0x02

void LCD_Write(bit style, unsigned char input)

{

LcdRs=style;

LcdRw=0;

DBPort=input;

delay(5);

LcdEn=1;

delay(5);

LcdEn=0;

}

#define LCD_SHOW 0x04

#define LCD_HIDE 0x00

#define LCD_CURSOR 0x02

#define LCD_NO_CURSOR 0x00

#define LCD_FLASH 0x01

#define LCD_NO_FLASH 0x00

void LCD_SetDisplay(unsigned char DisplayMode)

{

LCD_Write(LCD_COMMAND, 0x08|DisplayMode);

}

#define LCD_AC_UP 0x02

#define LCD_AC_DOWN 0x00

#define LCD_MOVE 0x01

#define LCD_NO_MOVE 0x00

void LCD_SetInput(unsigned char InputMode)

{

LCD_Write(LCD_COMMAND, 0x04|InputMode);

}

void LCD_Initial()

{

LcdEn=0;

LCD_Write(LCD_COMMAND,0x38);

delay(5);

LCD_Write(LCD_COMMAND,0x38);

delay(5);

LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR);

delay(5);

LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN);

delay(5);

LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE);

delay(5);

}

void GotoXY(unsigned char x, unsigned char y)

{

if(y==0)

LCD_Write(LCD_COMMAND,0x80|x);

if(y==1)

LCD_Write(LCD_COMMAND,0x80|(x-0x40));

}

void Print(unsigned char *str)

{

while(*str)

{

LCD_Write(LCD_DATA,*str);

str++;

delay(1);

}

void Timer1Init(void) //50ms@12.000MHz

{

TMOD &= 0x0F;

TMOD |= 0x10;

TL1 = 0xB0;

TH1 = 0x3C;

TF1 = 0;

TR1 = 1;

ET1=1;

EA=1;

}

unsigned char count=0;

unsigned int speed=0;

long temp1=0,temp2=0;

long s=0;

void Timer1_IRQ() interrupt 3

{

TR1 = 0;

TL1 = 0xB0;

TH1 = 0x3C;

TR1 = 1;

count++;

if(count==10)

{

temp2=TH0;

temp2<<=8;

temp2+=TL0;

if(temp2<temp1) s+=65535;

speed=(temp2-temp1)*5;

temp1=temp2;

count=0;

}

void Count0Init(void)

{

TMOD &= 0xF0;

TMOD |= 0x05;

TL0 = 0;

TH0 = 0;

TF0 = 0;

TR0 = 1;

}

unsigned int c=20;

long u=0;

sbit k1=P3^0;

sbit k2=P3^1;

void main()

{

Timer1Init();

Count0Init();

LCD_Initial();

while(1)

{

GotoXY(0,0);

Print("V:");

LCD_Write(1,speed/100+0x30);

LCD_Write(1,speed%100/10+0x30);

LCD_Write(1,'.');

LCD_Write(1,speed%10+0x30);

LCD_Write(1,' ');

Print("C:");

LCD_Write(1,c/100+0x30);

LCD_Write(1,c%100/10+0x30);

LCD_Write(1,'.');

LCD_Write(1,c%10+0x30);

Print("CM");

GotoXY(1,1);

Print("Total:");

u=(s+temp1)*c/40;

LCD_Write(1,u/100000+0x30);

LCD_Write(1,u%100000/10000+0x30);

LCD_Write(1,u%10000/1000+0x30);

LCD_Write(1,u%1000/100+0x30);

LCD_Write(1,'.');

LCD_Write(1,u%100/10+0x30);

LCD_Write(1,'M');

if(k2==0)

{

delay(5);

if(k2==0)

{

while(k2==0);

c++;

}

if(k1==0)

{

delay(5);

if(k1==0)

{

while(k2==0);

if(c>0) c--;

}

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