八位數碼管電子時鐘 protues模擬

ID:853394 · 發表于 2020-12-2 21:41

八位數碼管電子時鐘
代碼
#include <reg51.h>

sbit key1 = P1^0;
bit flag1s = 0;
bit KeySta = 1;
unsigned char hour = 8;
unsigned char minute = 31;
unsigned char second = 59;
unsigned char mode = 0;
void FreshTime();
void TimeInit();
void IntInit();
void InitLedBuff();
void keyscan();

unsigned char code LedChar[] = {  //共陰數碼管顯示字符轉換表
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x40,0x00};
unsigned char LedBuff[8] = {  //數碼管顯示緩沖區
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};

void main()
{

TimeInit();
IntInit();
InitLedBuff();
  while(1)//顯示內容處理
  {

if(flag1s&&!mode) //時間顯示模式
{
   flag1s = 0;
      FreshTime();
}
   else if(mode == 1)  //校準分鐘
{
   LedBuff[0] = 17;
   LedBuff[1] = 17;
   LedBuff[4] = 17;
   LedBuff[5] = 17;//不顯示
   LedBuff[6] = 17;
   LedBuff[7] = 17;
   LedBuff[2] = minute/10;
   LedBuff[3] = minute%10;
}
else if(mode == 2)  //校準小時
{
   LedBuff[2] = 17;
   LedBuff[3] = 17;
   LedBuff[4] = 17;
   LedBuff[5] = 17;//不顯示
   LedBuff[6] = 17;
   LedBuff[7] = 17;
   LedBuff[0] = hour/10;
   LedBuff[1] = hour%10;
}
else if(mode == 3)  //校準完成重新顯示
{
   InitLedBuff();
   mode = 0;
}
keyscan();
  }
}

void InitLedBuff()//初始化時間到顯示緩沖區
{
  LedBuff[0] = hour/10;
  LedBuff[1] = hour%10;
  LedBuff[2] = minute/10;
  LedBuff[3] = minute%10;
  LedBuff[4] = second/10;
  LedBuff[5] = second%10;
}
void FreshTime()//刷新時間到顯示緩沖區
{
  second++;
  if(second == 60)//進位
  {
second = 0;
minute++;

if(minute==60)//進位
{
   minute=0;
   LedBuff[2] = minute/10;
   LedBuff[3] = minute%10;
   hour++;
   if(hour == 24)
      hour = 0;
   LedBuff[0] = hour/10;
   LedBuff[1] = hour%10;
}
  }
  LedBuff[4] = second/10;
  LedBuff[5] = second%10;
}

void TimeInit()//定時器初始化
{
  TMOD = 0X11; //設置定時器為模式1
  TL0 = 0xB0;
  TH0 = 0x3C;    //定時初值 50ms
  TL1 = 0x18; //
TH1 = 0xFC; //定時初值 1ms
  TR0 = 1; //定時器0開始計時
  TR1 = 1; //定時器1開始計時
  ET1 = 1; //使能定時器1
  ET0 = 1; //使能定時器0
  PT0 = 1; //提高計時準確性，提高定時器0中斷優先級
  EA = 1;    //打開總中斷
}
void IntInit()//外部中斷初始化
{
  IT0 = 1;    //下降沿觸發
  EX0 = 1; //使能外部中斷0
}

void keyscan() //按鍵掃描及處理
{
  static bit backup = 1;
  if (KeySta != backup)  //當前值與前次值不相等說明此時按鍵有動作
  {
if (backup == 0) //如果前次值為0，則說明當前是彈起動作
{
   if(mode == 1) //校準分鐘時，分鐘加一
   {
      minute++;
      if(minute==60)
      minute = 0;
   }
   else if(mode == 2) //校準小時，小時加一
   {
      hour++;
      if(hour==24)
      hour = 0;
   }
}
backup = KeySta; //更新備份為當前值，以備進行下次比較
  }
}
void Int0() interrupt 0
{
  mode++;
  if(mode == 4)
  {
mode = 0;
  }
}
void Ledfresh() //數碼管顯示刷新
{
  static unsigned char i = 0;
  switch(i)
  {
case 0 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[0]];i++;break;
case 1 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[1]];i++;break;
case 2 : P2 = ~(0x01<<i);P0 = 0x40;i++;break;//時分間隔線
case 3 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[2]];i++;break;
case 4 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[3]];i++;break;
case 5 : P2 = ~(0x01<<i);P0 = 0x40;i++;break;//分秒間隔線
case 6 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[4]];i++;break;
case 7 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[5]];i=0;break;
  }
}
void Time0() interrupt 1 // 50ms
{
  static unsigned char n = 0;
  TL0 = 0xB0;
  TH0 = 0x3C;
  n++;
  if(n==20)
  {
n=0;
flag1s = 1;//1s標志位
  }
}

void Time1() interrupt 3  // 1ms
{
  static unsigned char keybuff = 0xff;
  TL1 = 0x18; //
TH1 = 0xFC; //定時初值 1ms
  Ledfresh();
  keybuff = (keybuff<<1)|key1;
  if (keybuff == 0x00)
  { //連續8次掃描值都為0，即16ms內都只檢測到按下狀態時，可認為按鍵已按下
   KeySta = 0;
  }
  else if (keybuff == 0xFF)
  { //連續8次掃描值都為1，即16ms內都只檢測到彈起狀態時，可認為按鍵已彈起
   KeySta = 1;
  }
  else
  {}  //其它情況則說明按鍵狀態尚未穩定，則不對KeySta變量值進行更新
}

ID:118735 · 發表于 2022-10-8 23:59

程序寫的非常不錯的

ID:894868 · 發表于 2023-2-10 15:42

我是來拿程序看看的··謝謝分享···

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八位數碼管電子時鐘 protues模擬