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標題: 單片機數字時鐘 [打印本頁]

作者: lixin1173472955 時間: 2021-12-11 02:13
標題: 單片機數字時鐘

#include<reg51.h>
#define uChar unsigned char
#define uInt unsigned int
uChar a[10] = { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f };
uChar b[8] = { 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f };
uChar second = 50, minute = 59, hour = 12, year = 18, month = 07, day = 21, count;
sbit Key1 = P3 ^ 0; //計時停止
sbit Key2 = P3 ^ 1; //調位
sbit Key3 = P3 ^ 2; //加一
sbit Key4 = P3 ^ 3; //切換
sbit Buzzer = P1 ^ 1;
/*********************延遲函數********************/
void Delay(uInt t)
{
while (t)
{
      t--;
}
}
/*********************時分秒顯示函數*******************/
void Dispaly1(uChar second, uChar minute, uChar hour)
{
/*********************第一位數碼管*********************/
P2 = b[0];
P0 = a[hour / 10];
Delay(10);
/*********************第二位數碼管*********************/
P2 = b[1];
P0 = a[hour % 10];
Delay(10);
/*********************第三位數碼管*********************/
P2 = b[2];
P0 = 0x40;
Delay(10);
/*********************第四位數碼管*********************/
P2 = b[3];
P0 = a[minute / 10];
Delay(10);
/*********************第五位數碼管*********************/
P2 = b[4];
P0 = a[minute % 10];
Delay(10);
/*********************第六位數碼管*********************/
P2 = b[5];
P0 = 0x40;
Delay(10);
/*********************第七位數碼管*********************/
P2 = b[6];
P0 = a[second / 10];
Delay(10);
/*********************第八位數碼管*********************/
P2 = b[7];;
P0 = a[second % 10];
Delay(10);
}
/*********************年月日顯示函數********************/
void Dispaly2(uChar day, uChar month, uChar year)
{
P2 = b[0];
P0 = a[day / 10];
Delay(10);

P2 = b[1];
P0 = a[day % 10];
Delay(10);

P2 = b[2];
P0 = 0x40;
Delay(10);

P2 = b[3];
P0 = a[month / 10];
Delay(10);

P2 = b[4];
P0 = a[month % 10];
Delay(10);

P2 = b[5];
P0 = 0x40;
Delay(10);

P2 = b[6];
P0 = a[year / 10];
Delay(10);

P2 = b[7];
P0 = a[year % 10];
Delay(10);
}
/*********************時鐘按鍵掃描函數*********************/
void Keyscan1()
{
static uChar i = 0, j = 0;
if (Key1 == 0)
{
      Delay(10); //消抖
      if (Key1 == 0)
         while (!Key1); //等待按鍵彈
      i++;
}
/*時鐘暫停功能*/
if (i % 2 == 1)
{
      TR0 = 0;/*如果是奇數次按鍵自然關閉定時器0*/
}
if (i % 2 == 0)
{
      TR0 = 1;/*如果是偶數次按鍵則打開定時器0*/
}
/*時鐘調位和數值加一功能*/
if (Key2 == 0)
{
      Delay(10);
      if (Key2 == 0)
         while (!Key2);
      j++;
}
if (j % 4 == 1)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         second++;
         if (second == 60)
            second = 0;
      }
}
if (j % 4 == 2)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         minute++;
         if (minute == 60)
            minute = 0;
      }
}
if (j % 4 == 3)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         hour++;
         if (hour == 24)
            hour = 0;
      }
}
}
/*日期按鍵掃描函數*/
void Keyscan2()
{
static uChar m = 0, n = 0;
if (Key1 == 0)
{
      Delay(10);
      if (Key1 == 0)
         while (!Key3);
      m++;
}
if (m % 2 == 1)
{
      TR0 = 0;/*奇數次按鍵則關閉定時器0*/
}

if (m % 2 == 0)
{
      TR0 = 1;/*偶數次按鍵則打開定時器0*/
}
if (Key2 == 0)
{
      Delay(10);
      if (Key2 == 0)
         while (!Key2);
      n++;
}
/*日期調位和日期加一功能*/
if (n % 4 == 1)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         day++;
         if (day == 30)
            day = 0;
      }
}
if (n % 4 == 2)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         month++;
         if (month == 12)
            month = 0;
      }
}
if (n % 4 == 3)
{
      if (Key3 == 0)
      {
         Delay(10);
         if (Key3 == 0)
            while (!Key3);
         year++;
         if (year == 99)
            year = 0;
      }
}
}

/************************************************/
/***************主函數***************************/
/************************************************/
void main()
{
TMOD = 0x01;    /*定時器以方式一工作*/
TH0 = (65536 - 10000) / 256;
TL0 = (65536 - 10000) % 256;/*10ms計時*/
EA = 1;
ET0 = 1;/*允許定時器0中斷*/
TR0 = 1;/*打開定時器0*/
while (1)
{
      static uChar h = 0;
      /*時鐘和日期切換功能*/
      if (Key4 == 0)
      {
         Delay(10);
         if (Key4 == 0)
            while (!Key4);
         h++;
      }
      if (h % 2 == 0)/*如果按鍵偶數次則顯示時鐘*/
      {
         Dispaly1(second, minute, hour);
         Keyscan1();
      }

      if (h % 2 == 1)/*如果按鍵奇數次則顯示日期*/
      {
         Dispaly2(year, month, day);
         Keyscan2();
      }
}
}
/**********************中斷函數**************************/
void time0_int(void) interrupt 1
{
TH0 = (65536 - 10000) / 256;
TL0 = (65536 - 10000) % 256;
count++;
if (count == 100)/*10ms??ê±￡???100′??ò??o?1s*/
{
      count = 0;
      second++;
      if (second == 60)
      {
         second = 0;
         minute++;
         if (minute == 60)
         {
            minute = 0;
            hour++;
            if (hour == 24)
            {
                  hour = 0;
                  day++;
                  if (day == 30)
                  {
                     day = 0;
                     month++;
                     if (month == 12)
                     {
                        month = 0;
                        year++;
                        if (year == 99)
                        {
                              year = 0;
                        }
                     }
                  }
            }
         }
      }
}
/*判斷整點提醒*/
if (second == 00 && minute == 00)
      Buzzer = 0;
else
      Buzzer = 1;
}

電子時鐘.PNG (47.59 KB, 下載次數: 95)

作者: shiai 時間: 2021-12-15 16:14
為什么顯示有點問題

作者: 校園三劍客 時間: 2022-1-4 14:53
這個是不是有問題弄出來顯示不了。請樓主看一下加急

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