定時器秒表精確到0.1（定時器秒表）

2023-09-19 21:30:23 2

定時器秒表精確到0.1?#include typedef unsigned int u16;，現在小編就來說說關於定時器秒表精確到0.1?下面內容希望能幫助到你，我們來一起看看吧!

定時器秒表精確到0.1

#include

typedef unsigned int u16;

typedef unsigned char u8;

sbit LSA=P2^2;

sbit LSB=P2^3;

sbit LSC=P2^4;

u8 code smgduan[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

u16 s;

u8 sec,mb[2];

void Timer0Init

{

TMOD|=0x01;

TH0=0xfc;

TL0=0x18;

TR0=1;

}

void delay(u16 i)

{

while(i--);

}

void DigDisplay

{

u8 i;

for(i=0;i<2;i )

{

switch(i)

{

case(0):

LSA=0;

LSB=0;

LSC=0;break;

case(1):

LSA=1;

LSB=0;

LSC=0;break;

}

P0=smgduan[mb[i]];

delay(1);

P0=0x00;

}

}

void main

{

Timer0Init;

while(1)

{

if (TF0==1)

{TF0=0;

TH0=0xfc; //給定時器賦值，1ms

TL0=0x18;

s ;

}

if(s==1000) //到達1ms

{

s=0;

sec ;

if(sec==100)

sec=0; //到100清0

}

mb[0]=sec; //個

mb[1]=sec/10; //十

DigDisplay;

}

}