谁进来看看单片机c语言

来源：百度知道 编辑：UC知道 时间：2024/06/04 01:00:43
C语言源程序
这是在网上找的，由于没有注解有些地方看不明白，希望你能给我表上注解。万分感谢！

这是网址 http://www.picavr.com/news/2008-06/6518.htm

#include <AT89X52.H>

unsigned char code dispbit[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,

0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x40};

unsigned char dispbuf[8]={0,0,0,0,0,0,10,10};

unsigned char temp[8];

unsigned char dispcount;

unsigned char T0count;

unsigned char timecount;

bit flag;

unsigned long x;

void main(void)

{

unsigned char i;

TMOD=0x15;

TH0=0;

TL0=0;

TH1=(65536-4000)/256;

TL1=(65536-4000)%256;

TR1=1;

TR0=1;

ET0=1;

ET1=1;

EA=1;

#include <AT89X52.H>

unsigned char code dispbit[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
//要显示的字符表

unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,

0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x40};
//要显示的字符表

unsigned char dispbuf[8]={0,0,0,0,0,0,10,10};
//要显示的字符

unsigned char temp[8];

unsigned char dispcount;

unsigned char T0count;

unsigned char timecount;

bit flag;

unsigned long x;

void main(void)

{

unsigned char i;

//以下是定时器初始化
TMOD=0x15;

TH0=0;

TL0=0;

//定时器初始化定时数据
TH1=(65536-4000)/256;

TL1=(65536-4000)%256;

//启动定时器
TR1=1;

TR0=1;

ET0=1;

ET1=1;

EA=1;

//运行程序，1表示一直运行
while(1)

{

if(flag==1)

{

flag=0;

x=T0