秒表程序……歡迎斧正

看到你的程序結(jié)構(gòu)，哥們就暈了。。。。

給你一個(gè)99秒表的參考程序：

#include <REGX51.H>
#include <../stdint.h>
#include <ABSACC.H>
#include <INTRINS.H>
//------------------------------
#define  TH_10MS  (65536-10000)/256
#define  TL_10MS  (65536-10000)%256
//------------------------------------------
#define led12 XBYTE[0xf7ff] //led1與led2數(shù)碼管
#define led34 XBYTE[0xefff] //led3與led4數(shù)碼管
#define led_light P3_7
#define keyst  P1_0
#define keyclk  P1_1

volatile struct _clock
{
 uint8_t t_s;//秒
 uint8_t t_ms;//分秒
 uint8_t led_lightf : 1;//中間燈   ==bit  led_lightf;
 uint8_t keyf_st : 1;   //開停鍵標(biāo)志
 uint8_t keyf_clk : 1;  //清0鍵標(biāo)志
 uint8_t clockf_st : 1; //開始計(jì)時(shí)標(biāo)志
#define  STOP 0
#define  START 1
 uint8_t : 0;
}clock;


//-----------------delay-----------------------------
void delay_10ms()
{
 uint8_t i, j;
 for(i=0; i<100; i++)
  for(j=0; j<100; j++);
}

//-------------------10進(jìn)制顯示-----------------------
void display_val(uint8_t data_l, uint8_t data_r)
{
 uint8_t led_tmp12, led_tmp34;
 //取右邊分秒
 led_tmp12 = (data_r/10)%10;
 led_tmp12 <<=4;
 led_tmp12 |= (uint8_t)(data_r%10);
 //取左邊秒
 led_tmp34 = (data_l/10)%10;
 led_tmp34 <<=4;
 led_tmp34 |= data_l%10;

 led12 = led_tmp12;//送顯示
 led34 = led_tmp34;
}

//------------------------初始化--------------
void clr_data()
{
 clock.t_s = 0;
 clock.t_ms = 0;
 clock.led_lightf = 0;
 clock.keyf_st = 0;
 clock.keyf_clk = 0;
 clock.clockf_st = STOP;
 TR0 = 0;   //關(guān)定時(shí)器
 display_val(0,0);
 led_light = 0;  
}
void init_sys()
{
 clr_data();
 //定時(shí)器0設(shè)置
 TMOD = 0x01; //定時(shí)器0設(shè)為MAOD1
 TCON = 0x00; //清標(biāo)志位
 TH0 = TH_10MS;
 TL0 = TL_10MS;
 //TR0 = 1;   //開定時(shí)器
 //IE = 0x8a; //開定時(shí)中斷0,1與總開關(guān)
 EA = 1;
 ET0 = 1;
}

//--------------------鍵盤掃描-----------------
void key_scan()
{
 bit keyf;
 keyf = keyst & keyclk;
 if(keyf)
  goto error;
 delay_10ms();
 keyf = keyst & keyclk;
 if(keyf)
  goto error;
  clock.keyf_st = !keyst;
  clock.keyf_clk = !keyclk;
  do
  {
   keyf = keyst & keyclk;
  }
  while(!keyf);
error:
 return ;  
}

//--------------------鍵盤處理-------------------
void key_deal()
{
 if(clock.keyf_st)
 {
  if(clock.clockf_st == STOP)
   TR0 = 1;
  else
   TR0 = 0;
  clock.clockf_st = ~clock.clockf_st;
  clock.keyf_st = 0;
 }
 if(clock.keyf_clk)
   {
  clr_data();
  clock.keyf_clk = 0;
   }
}

// -------------------main------------------------
void main()
{
 init_sys();
 while(1)
 {
  key_scan();//鍵盤掃描
  key_deal();//鍵盤處理
 }
}
//----------------------定時(shí)中斷0-----------------
void  t0_interrupt() interrupt 1
{
 
 TR0 = 0;

 clock.t_ms++;
 if(clock.t_ms == 100)
 {
  clock.t_ms = 0;
  clock.t_s++;
  if(clock.t_s == 100)
   clock.t_s = 0;
  clock.led_lightf = ~clock.led_lightf;
 }
 display_val(clock.t_s, clock.t_ms);
 led_light = clock.led_lightf;
 TH0 = TH_10MS;
 TL0 = TL_10MS;
 TR0 = 1;
}