Cstyle的嵌入式之：那些年我们一起写过的单片机程序，世上最简单的单片机程序

    周末回家，正漫无目的的浏览着网站，突有一QQ消息弹出自称是大学学生因不熟悉单片机，老师催作业太急，需要求助，题目大概如下
正好闲着没事，就说我们也是那个时候过来的，就来随便写写，看下当初的东西是否都还给老师了，就打开了MDK开始敲起来，大概半小时终于完成了，小伙伴们来围观下，嘿嘿。虽然它的电路图漏洞百出，不过看起来应该是个示意图，所以我的程序也算是示意，逻辑大概通顺，没有编译调试过，也可能有语法错误不过这不影响我回忆单片机的心情。O(∩_∩)O

 

#include <at89c51.h>

static unsigned code char DecodeNum[16]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};//需要调试，取字模，解码

#typedef ONE 1  //select the first LED

#typedef TWO 2  //select the second LED

#typedef THR 3  //select the third  LED

#typedef FOR 4  //select the four LED

#typedef Delay1MS 1

#typedef Delay100MS 100

#typedef Delay1S    100000

void Put8(unsigned char Data8,unsigned char Cs);

void Puts8(unsigned char *Data8,Unsigned char Length);

void Delay(unsigned int Time);

main()

{   

  //添加输出的任务

  //例子1：输出数字 5 到第三个LED上 

  //例子2:循环输出一串数字到四个LED上

  unsigned char data8[7]={1,2,3,4,5,6,7};

  Put8(5,3);//ext.1

  while(1)   //ext.2

{

  Puts8(data8,7);

  Delay(Delay1S); 

}

}

//output 8 bit date to port 0

void Out8(uniigned char Data8)

{

P0 = Data8;

}

//select one LED to show the data output from port0

void Cs(Unsigned char Data8)

{

switch(Data8)

{

case ONE:

{

P2^1=0;

break;

}

case TWO :

{

P2^2=0;

break;

}

case THR :

{

P2^3=0;

break;

}

case FOR :

{

P2^4=0;

break;

}

default break;

}

}

//show one data on the selected LED

void Put8(unsigned char Data8,unsigned char Cs)

{

Out8(DecodeNum[Data8]);

Cs(Cs);

}

//show a string on the for LED

void Puts8(unsigned char *Data8,Unsigned char Length)

{

unsigned int i;

for(i=0;i<Length;i++)

{

i=i%FOR;

Put8([*Data8++],i+1);

Delay(Delay100MS);

}

}

//Delay for a while

void Delay(unsigned int Time)

{

ungingned int i;

for(i=0;i<Time;i++)

}

先到这里。

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