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標題: 實用的單片機數(shù)碼管時鐘 [打印本頁]

作者: himanzj 時間: 2016-12-19 10:02
標題: 實用的單片機數(shù)碼管時鐘
  本時鐘用stc15w 系列和74hc04 加 3 個按鍵，實現(xiàn)了調(diào)整時間，定時，秒倒計時，速度 4個功能
下面是c 程序

#include <REG51.H>
#define USEC_SYS_CYCLE 2
#include "keybd.h"
#define uchar unsigned char
#define uint  unsigned int
#define DSP_DOT  0xfb
#define DSP_NEG  0xfe
#define DOT  0x04
#define ST_CLOCK 0
#define ST_APPOINT 1
#define ST_CNTDWN 2
#define ST_SPEED 3

#define DSPLAY_P P3
unsigned char code DSPLAY[]={0x05,0x7D,0x46,0x54,0x3C,0x94,0x84,0x5D,
                           0x04,0x14,0x0C,0xA4,0x87,0x64,0x86,0x8E}; //0-f
#define up_hour(h) hour10= h/10;\
               hour1= h%10
#define up_minute(m) minute10= m/10;\
               minute1= m%10
#define up_speed hour10= 0xff;\
               if(speed< 0)  \
   hour1= DSP_NEG;\
   else  \
   hour1= 0xff;\
   minute10= DSPLAY[speed/10];\
   minute1=DSPLAY[speed%10]
  uchar msec50= 0; //50 milisecond
  uchar hour= 1, minute= 20;
  uchar secs=0;
  uchar app_hour=0, app_minute= 0;
  uchar dwn_minute= 0, dwn_sec= 0;
  char hour1,hour10;
  char minute1,minute10;
  char speed= 0;
  char state= 0;


// the led display 0
  sbit com_h10= P1^3;  //the common of led bit
  sbit com_h1= P1^0;
  sbit com_m10= P1^1;
  sbit com_m1= P1^2;
  sbit btn_set= P1^7; //the set button
  sbit btn_hup= P1^5; //the hour up button
  sbit btn_mup= P1^6; //the minute up button
  sbit p_sound= P1^4;
   char abs(char x)
   {
      return (x<0 ? -x: x);
   }
   void tm0_inter() interrupt 1
   {
   TH0= 0x5b;
TL0= 0x70+ speed;

msec50++;

      //every 0.5 sec inteval the second DOT
      if( msec50> 10)
      {
msec50 = 0;
secs++;
         if(state== ST_CLOCK)
{
   minute10^= DOT;
   minute1^= DOT;
}
if(secs> 18)
{
   minute++;
   secs= 0;
   if(minute> 59)
   {
      minute= 0;
      hour++;
   hour%= 24;
   }
   if(state== ST_CLOCK)
   {
      up_hour(hour);
   up_minute(minute);
   }
}
}

else
{

}
   }

   void main()
{
      TMOD= 0x01;    //set timer state,
      TH0= 0x5b; //set counter init value: 65536- 50000us
      TL0= 0xf4; //slow old is ed，fast old f8

      ET0= 1; //enable interrupt fot timer 0.
      EA= 1;
      TR0= 1; //timer 0 run;
   up_hour(hour);
up_minute(minute);
      while(1)
      {

   DSPLAY_P= DSPLAY[hour10];
         com_h10 = 1;
         msDelay(4);
         com_h10 = 0;

         DSPLAY_P= DSPLAY[hour1];
         com_h1 = 1;
         msDelay(4);
         com_h1 = 0;

DSPLAY_P= DSPLAY[minute10];
         com_m10 = 1;
         msDelay(4);
         com_m10 = 0;

         DSPLAY_P= DSPLAY[minute1];
         com_m1 = 1;
         msDelay(4);
         com_m1 = 0;
//the button set pressed
KeyPress(btn_set,{
switch (state)
{
case ST_CLOCK:
{
      up_hour(hour);
   up_minute(minute);
      state= ST_APPOINT;

   break;
   }
case ST_APPOINT:
{
   up_hour(app_hour);
   up_minute(app_minute);
      state= ST_CNTDWN;

   break;
}
case ST_CNTDWN:
{
   up_hour(dwn_minute);
   up_minute(dwn_sec);
      if(dwn_minute && dwn_sec)
   {
   break;
   }
   else
   {
   state= ST_SPEED;
   }
   break;
}
case ST_SPEED:
{
      up_speed;
      state= ST_CLOCK;

   break;
}

default:
      state= ST_CLOCK;
   up_hour(hour);
   up_minute(minute);
   break;
}
         });

   //the button hour up pressed
   KeyPress(btn_hup,{
switch (state)
{
case ST_CLOCK:
{
      hour++;
   if(hour> 23)
   hour= 0;
   up_hour(hour);
   break;
   }
case ST_APPOINT:
{
      app_hour++;
   if(app_hour> 23)
   app_hour= 0;
   up_hour(app_hour);
   break;
}
case ST_SPEED:
{
      speed++;
   if(speed> 60)
   speed= 0;
   break;
}
case ST_CNTDWN:
{
      dwn_minute++;
   if(dwn_minute> 59)
   dwn_minute= 0;
   break;
}
default:
   break;
}
         });
   //the button minute up pressed
   KeyPress(btn_mup,{
switch (state)
{
case ST_CLOCK:
{
      minute++;
   if(minute> 59)
   minute= 0;
   up_minute(minute);
   break;
   }
case ST_APPOINT:
{
      app_minute++;
   if(app_minute> 59)
   app_minute= 0;
   up_minute(app_minute);
   break;
}
case ST_SPEED:
{
      speed--;
   if(speed< -60)
   speed= 0;
   break;
}
case ST_CNTDWN:
{
      dwn_sec++;
   if(dwn_sec> 59 )
   dwn_sec= 0;
   break;
}
default:
   break;
}
         });
}
}

screenshot.1.jpg (374.58 KB, 下載次數(shù): 80)

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