單片機程序應該加入什么關于蜂鳴器的代碼可以讓它實現鬧鈴的功能

ID:812792 · 發表于 2020-8-11 15:15

這個是51單片機電子日歷并且可以顯示溫度的DS1302時鐘+12864LCD顯示，現在想要給這個程序通過加入一個蜂鳴器以讓它實現在特定時間發出聲音的功能，也就是一個鬧鈴的功能，菜雞請問大家應該加入什么樣的代碼可以讓它實現這樣的功能呢？

ID:812792 · 發表于 2020-8-11 15:17

/****************************************/
/*       帶溫度顯示的電子日歷          */
/****************************************/

#include<reg51.h>
#include<intrins.h>
#include<string.h>
#define uchar unsigned char
#define uint unsigned int
sbit DQ=P2^7;
sbit CS1=P2^1; //定義選擇芯片左半屏信號
sbit CS2=P2^2; //定義選擇芯片右半屏信號
sbit DI=P2^5;    //定義選擇顯示類型
sbit RW=P2^4;    //定義讀寫信號
sbit E=P2^3;    //定義數據鎖存信號
sbit IO=P1^0;    //DS1302數據線
sbit CLK=P1^1;    //DS1302時鐘線
sbit RST=P1^2;    //DS1302復位線
sbit s1=P3^0;
sbit s2=P3^1;
sbit s3=P3^2;
uchar Time_Buffer[7]; //日期緩存，0-6依次為秒、分、時、日、月、周日、年
uint Temp,Temp1;
bit Temp_Flag;
uchar s1num;
uchar flag_year=0,flag_moon=0,flag_day=0,flag_hour=0,flag_min=0,flag_sec=0,flag_week=0;
uchar tempa;
uchar t0_num;
void delayms(uint xms);
void Write_1302(uchar addr,uchar dat);
void keyscan();
void time_adj();

/*--年,月,日,星期,時,分,秒,漢字點陣（16*16）--*/
uchar code Date_Time_Words[]=
{
0x40,0x20,0x10,0x0C,0xE3,0x22,0x22,0x22,0xFE,0x22,0x22,0x22,0x22,0x02,0x00,0x00,//年
0x04,0x04,0x04,0x04,0x07,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0xFF,0x11,0x11,0x11,0x11,0x11,0xFF,0x00,0x00,0x00,0x00,//月
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x01,0x01,0x21,0x41,0x3F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,//日
0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xBE,0x2A,0x2A,0x2A,0xEA,0x2A,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,//星
0x00,0x48,0x46,0x41,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x49,0x49,0x41,0x40,0x00,
0x00,0x04,0xFF,0x54,0x54,0x54,0xFF,0x04,0x00,0xFE,0x22,0x22,0x22,0xFE,0x00,0x00,//期
0x42,0x22,0x1B,0x02,0x02,0x0A,0x33,0x62,0x18,0x07,0x02,0x22,0x42,0x3F,0x00,0x00,
0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00,//時
0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00,0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,
0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80,0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00,//分
0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00,0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00,
0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38,0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00,//秒
0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40,0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00
} ;
//星期幾的漢字點陣
uchar code Weekday_Words[]=
{
0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,//日
0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00,
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xC0,0x80,0x00,//一
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x00,//二
0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x18,0x10,0x00,
0x00,0x04,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x04,0x00,0x00,//三
0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,
0x00,0xFE,0x02,0x02,0x02,0xFE,0x02,0x02,0xFE,0x02,0x02,0x02,0x02,0xFE,0x00,0x00,//四
0x00,0x7F,0x28,0x24,0x23,0x20,0x20,0x20,0x21,0x22,0x22,0x22,0x22,0x7F,0x00,0x00,
0x00,0x02,0x82,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0xC2,0x82,0x02,0x00,0x00,0x00,//五
0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x30,0x20,0x00,
0x10,0x10,0x10,0x10,0x10,0x91,0x12,0x1E,0x94,0x10,0x10,0x10,0x10,0x10,0x10,0x00,//六
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x00,0x00,0x01,0x02,0x0C,0x78,0x30,0x00,0x00
};

//溫度顯示漢字點陣
uchar code Templt[]=
{
0x10,0x22,0x64,0x0C,0x80,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0xFF,0x02,0x00,0x00,//溫
0x04,0x04,0xFE,0x01,0x40,0x7E,0x42,0x42,0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,
0x00,0x00,0xFC,0x24,0x24,0x24,0xFC,0xA5,0xA6,0xA4,0xFC,0x24,0x34,0x26,0x04,0x00,//度
0x40,0x20,0x9F,0x80,0x42,0x42,0x26,0x2A,0x12,0x2A,0x26,0x42,0x40,0xC0,0x40,0x00,
0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//：
0x00,0x00,0x00,0x00,0x31,0x7B,0x7B,0x31,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x02,0x05,0xE2,0x18,0x04,0x02,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,//℃
0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x40,0x40,0x40,0x40,0x40,0x20,0x18,0x00,0x00

};

//半角數字點陣
uchar code Digits[]=
{
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//.
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 //' '
};

/*--屏幕顯示--*/
void left()//左半屏顯示
{
CS1=1;
CS2=0;
}
void right()//右半屏顯示
{
CS1=0;
CS2=1;
}

/*--判斷LCD是否繁忙--*/
void LCD_Check_Busy()
{
do
{
E=0;
DI=0;
RW=1;
P0=0xff;
E=1;
_nop_();
E=0;
}
while(P0&0x80);//P0.7口
}

/*--向LCD發送命令--*/
void LCD_Write_Command(uchar c)
{
LCD_Check_Busy();
P0=0xFF ;
RW=0;
DI=0;
P0=c ;
E=1;
E=0;
}

/*--向LCD發送數據--*/
void LCD_Write_Date(uchar d)
{
LCD_Check_Busy();
P0=0xFF ;
RW=0;
DI=1;
E=1;
_nop_();
P0=d ;
E=0;
_nop_();
}

/*--設置初始頁--*/
void page_first(uchar p)
{
uchar i=p;
p=i|0xb8;
LCD_Check_Busy();
LCD_Write_Command(p);
}

/*--設置初始列--*/
void col_first(uchar c)
{
uchar i=c;
c=i|0x40;
LCD_Check_Busy();
LCD_Write_Command(c);
}

/*--任意位置顯示漢字--*/
void Display_Word(uchar page,uchar col,uchar*s)
{
uchar i,j;
page_first(page);//上半部
col_first(col);
for(i=0;i<16;i++)
{
LCD_Write_Date(*s);
s++;
}
page_first(page+1);//下半部
col_first(col);
for(j=0;j<16;j++)
{
LCD_Write_Date(*s);
s++;
}
}

/*--任意位置顯示字符--*/
void Display_Char(uchar page,uchar col,uchar*s)
{
uchar i,j;
page_first(page);//上半部
col_first(col);
for(i=0;i<8;i++)
{
LCD_Write_Date(*s);
s++;
}
page_first(page+1);//下半部
col_first(col);
for(j=0;j<8;j++)
{
LCD_Write_Date(*s);
s++;
}
}

/*--初始化LCD --*/
void LCD_initialize()
{
CS1=1;
CS2=1;
LCD_Write_Command(0x38); //8位形式，2行字符
LCD_Write_Command(0x0F); //開顯示
LCD_Write_Command(0x01); //清屏
LCD_Write_Command(0x06); //畫面不動光標右移
LCD_Write_Command(0xC0);//設置起始行
}

/*--向DS1302寫入一字節--*/
void Write_A_Byte_To_1302(uchar x)
{
uchar i;
for(i=0;i<8;i++)
{
     IO=x&0x01; CLK=1;CLK=0;x>>=1;
}
}
/*--從DS1302讀取一字節--*/
uchar Receive_A_Byte_From_1302()
{
uchar i,b=0x00;
for(i=0;i<8;i++)
{
     b |= _crol_((uchar)IO,i);
CLK=1;CLK=0;
}
return b/16*10+b%16;
}

/*--從DS1302指定位置讀數據--*/
uchar Read_1302(uchar addr)
{
uchar dat;
RST = 0;CLK=0;RST=1;
   Write_A_Byte_To_1302(addr);
dat = Receive_A_Byte_From_1302();
   CLK=1;RST=0;
return dat;
}

/*--向DS1302某地址寫入數據--*/
void Write_1302(uchar addr,uchar dat)
{
   CLK=0; RST=0;
   Write_A_Byte_To_1302(addr);
   Write_A_Byte_To_1302(dat);
   CLK=0;RST=0;
}

/*--讀取當前日期時間--*/
void Get_Time()
{
uchar i;
for(i=0;i<7;i++)
{
Time_Buffer[i]=Read_1302(0x81+2*i);
}
}

/*--定時器0每秒刷新LCD顯示--*/
void T0_INT() interrupt 1
{
TH0=(65536-50000)/256;
   TL0=(65536-50000)%256;
t0_num++;
left();//顯示左半屏
if(flag_year==0)
   {
   Display_Char(0,16,Digits+ Time_Buffer [6]/10*16);//顯示年的十位數，占8列
   Display_Char(0,24,Digits+ Time_Buffer [6]%10*16); //顯示年的個位數，占8列
   }
else
   {
   if(t0_num<=5)
   {
Display_Char(0,16,Digits+ Time_Buffer [6]/10*16);//顯示年的十位數，占8列
      Display_Char(0,24,Digits+ Time_Buffer [6]%10*16); //顯示年的個位數，占8列
   }
   if(t0_num>5&&t0_num<=10)
   {
if(t0_num==10)t0_num=0;
Display_Char(0,16,Digits+ Digits[11]/10*16);//顯示年的十位數，占8列
      Display_Char(0,24,Digits+ Digits[11]%10*16); //顯示年的個位數，占8列
   }
   }
Display_Char(0,48,Digits+ Time_Buffer [4]/10*16); //顯示月的十位數，占8列
Display_Char(0,56,Digits+ Time_Buffer [4]%10*16); //顯示月的個位數，占8列
right();//顯示右半屏
Display_Char(0,80,Digits+ Time_Buffer [3]/10*16); //顯示日的十位數，占8列
Display_Char(0,88,Digits+ Time_Buffer [3]%10*16); //顯示日的個位數，占8列
left();//顯示左半屏
Display_Char(2,16,Digits+ Time_Buffer [2]/10*16); //顯示時的十位數，占8列
Display_Char(2,24,Digits+ Time_Buffer [2]%10*16); //顯示時的個位數，占8列
left();//顯示左半屏
Display_Char(2,48,Digits+ Time_Buffer [1]/10*16); //顯示分的十位數，占8列
Display_Char(2,56,Digits+ Time_Buffer [1]%10*16); //顯示分的個位數，占8列
right();//顯示右半屏，秒顯示在右半屏部分
Display_Char(2,80,Digits+ Time_Buffer [0]/10*16); //顯示秒的十位數，占8列
Display_Char(2,88,Digits+ Time_Buffer [0]%10*16); //顯示秒的個位數，占8列
right();//顯示右半屏
Display_Word(4,64,Weekday_Words+( Time_Buffer [5]-1)*32);//顯示周日，占16列
left();//顯示左半屏，溫度
Display_Char(6,48,Digits+ Temp1/100*16); //顯示溫度十位數，占8列
Display_Char(6,56,Digits+ Temp1%100/10*16); //顯示溫度個位數，占8列
right();//顯示右半屏
Display_Char(6,64,Digits+ 10*16); //顯示溫度小數點，占8列
Display_Char(6,72,Digits+ Temp%10*16); //顯示溫度十分位數，占8列
}

/*--定時器0初始化程序--*/
void Time0_initialize()
{
EA=1;//開總中斷
ET0=1;//開定時/計數器0中斷
TMOD=0x01;//設置工作方式1
TH0=(65536-50000)/256;//放入計數初值
TL0=(65536-50000)%256;//放入計數初值
TR0=1;//開定時/計數器0
}

/*--顯示固定漢字：年月日，星期，時分秒*/
void Display()
{
left();//左半屏顯示
Display_Char(0,0,Digits+2*16);//顯示2
Display_Char(0,8,Digits);//顯示0
/*--顯示固定漢字：年月日，星期，時分秒*/
Display_Word(0,32,Date_Time_Words+0*32); //"年"字的顯示
right();//右半屏顯示
Display_Word(0,64,Date_Time_Words+1*32); //"月"字的顯示
Display_Word(0,96,Date_Time_Words+2*32); //"日"字的顯示
left();//左半屏顯示
Display_Word(2,32,Date_Time_Words+5*32); //"時"字的顯示
right();//右半屏顯示
Display_Word(2,64,Date_Time_Words+6*32); //"分"字的顯示
Display_Word(2,96,Date_Time_Words+7*32); //"秒"字的顯示，秒顯示在右半屏
left();//左半屏顯示
Display_Word(4,32,Date_Time_Words+3*32);    //"星"字的顯示
Display_Word(4,48,Date_Time_Words+4*32); //"期"字的顯示
left();//左半屏顯示
Display_Word(6,0,Templt+0*32); //"溫"字的顯示
Display_Word(6,16,Templt+1*32); //"度"字的顯示
Display_Word(6,32,Templt+2*32); //"："字的顯示
right();//右半屏顯示
Display_Word(6,80,Templt+3*32);    //"℃"字的顯示
}

void delayms(uint xms)
{
  uint y;
  while(xms--)for(y=110;y>0;y--);
}
//us級延時函數
void Delayus(uchar xus)//晶振為12MHz，延時時間為2i+5 us
{
while(--xus);
}

//初始化DS18B20函數
bit Init_DS18B20(void)
{
bit x;
DQ=1;
DQ=0;
Delayus(250);
DQ=1;
Delayus(20);
if(!DQ) x=0;
else x=1;
Delayus(250);
DQ=1;
return x;
}

//讀DS18B20函數
uchar Read_DS18B20(void)
{
uchar i=0,Dat=0;
for(i=0;i<8;i++)
{
DQ=1;
DQ=0;
Dat>>=1;
DQ=1;
if(DQ) Dat |= 0x80;
DQ=1;
Delayus(30);
}
return Dat;
}

//寫DS18B20函數
void Write_DS18B20(uchar Dat)
{
uchar i=0;
for(i=0;i<8;i++)//循環8次，寫入一個字節
{
DQ=1;//未發送前的狀態
Dat >>= 1;//將要傳送的最低位放入CY
DQ=0;//將總線拉低，產生寫時序
DQ=CY;//將要傳送的位狀態送到總線上
Delayus(30);//延時50us，即保持總線狀態，待DS18B20采樣
DQ=1;//恢復期，總線置1
}
}

//取溫度函數
void GetTemp(void)//獲取溫度函數
{
uchar a=0,b=0;
TR0=0;//關閉定時器，防止定時器中斷干擾DS18B20
Init_DS18B20();
Write_DS18B20(0xcc);//跳過ROM
Write_DS18B20(0x44);//開啟溫度轉換
Init_DS18B20();
Write_DS18B20(0xcc);//跳過ROM
Write_DS18B20(0xbe);//讀暫存器
a=Read_DS18B20();//讀取高速暫存字節0，溫度低8位
b=Read_DS18B20();//讀取高速暫存字節1，溫度高8位
TR0=1;//完成DS18B20讀取后打開定時器
Temp=b;
Temp<<=8;
Temp=Temp|a;//將高、低位溫度編碼合在一起
if(b>=8)//判斷溫度值是否為負，如果溫度高字節大于等于8說明溫度值為負
{
Temp=~Temp+1;//將補碼轉換成原碼
Temp_Flag=1;//溫度標志為1，表示溫度為負
}
else
{
Temp_Flag=0;//溫度標志為0，表示溫度為正
}
Temp1=Temp*0.0625*10;//將溫度編碼轉換成溫度值  放大10倍  加0.5是為了四舍五入
TR0=1;
}

void keyscan() //鍵盤掃描函數
{
if(s1==0)
   {
      delayms(5);
   if(s1==0)
   {
      while(!s1);
   s1num++;
   if(s1num==1)
   {
      flag_year=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[6])/10*16+(Time_Buffer[6])%10;//年數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x8c,tempa);//改寫年
   Write_1302(0x8e,0x80);
   }
   if(s1num==2)
      {
   flag_moon=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[4])/10*16+(Time_Buffer[4])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x88,tempa);//改寫月
   Write_1302(0x8e,0x80);
}
   if(s1num==3)
      {
   flag_day=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[3])/10*16+(Time_Buffer[3])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x86,tempa);//改寫日
   Write_1302(0x8e,0x80);
}
   if(s1num==4)
   {
      flag_hour=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[2])/10*16+(Time_Buffer[2])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x84,tempa);//改寫時
   Write_1302(0x8e,0x80);
   }
   if(s1num==5)
   {
      flag_min=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[1])/10*16+(Time_Buffer[1])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x82,tempa);//改寫分
   Write_1302(0x8e,0x80);
   }
if(s1num==6)
   {
      flag_sec=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[0])/10*16+(Time_Buffer[0])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x80,0x80|tempa);//改寫秒
   Write_1302(0x8e,0x80);
   }
if(s1num==7)
   {
      flag_week=1;
   //write_1602com(er+0x09); //設置按鍵按動一次，秒位置顯示光標
               //write_1602com(0x0f); //設置光標為閃爍
               tempa=(Time_Buffer[5])/10*16+(Time_Buffer[5])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x8a,tempa);//改寫星期
   Write_1302(0x8e,0x80);
   }
if(s1num==8)
   {
      s1num=0;
   flag_year=0;
   flag_moon=0;
   flag_day=0;
   flag_hour=0;
   flag_min=0;
   flag_sec=0;
   flag_week=0;
   tempa=(Time_Buffer[0])/10*16+(Time_Buffer[0])%10;//秒數據寫入DS1302
   Write_1302(0x8e,0x00);
   Write_1302(0x80,0x7f&tempa);//改寫秒
   Write_1302(0x8e,0x80);
   }
   }
   }
}

void time_adj()             //走時時間調整函數
{
if(s1num!=0)
   {
   tempa=(Time_Buffer[0])/10*16+(Time_Buffer[0])%10;
   Write_1302(0x8e,0x00);
   Write_1302(0x80,0x80|tempa);//改寫秒
   Write_1302(0x8e,0x80);
   if(s2==0)
      {
   delayms(5);
   if(s2==0)
      {
   while(!s2);
   switch(s1num)
      {
   case 1:
            Time_Buffer[6]++;
   if(Time_Buffer[6]==100)
      Time_Buffer[6]=0;
   tempa=(Time_Buffer[6])/10*16+(Time_Buffer[6])%10;
   Write_1302(0x8e,0x00);
            Write_1302(0x8c,tempa);//改寫年
            Write_1302(0x8e,0x80);
   break;

   case 2:
            Time_Buffer[4]++;
   if(Time_Buffer[4]==13)
      Time_Buffer[4]=0;
   tempa=(Time_Buffer[4])/10*16+(Time_Buffer[4])%10;
            Write_1302(0x8e,0x00);
            Write_1302(0x88,tempa);//改寫月
            Write_1302(0x8e,0x80);
   break;
   case 3:
            Time_Buffer[3]++;
   if(Time_Buffer[3]==30)
      Time_Buffer[3]=0;
   tempa=(Time_Buffer[3])/10*16+(Time_Buffer[3])%10;
            Write_1302(0x8e,0x00);
            Write_1302(0x86,tempa);//改寫日
            Write_1302(0x8e,0x80);
   break;
   case 4:
            Time_Buffer[2]++;
   if(Time_Buffer[2]==24)
      Time_Buffer[2]=0;
   tempa=(Time_Buffer[2])/10*16+(Time_Buffer[2])%10;
            Write_1302(0x8e,0x00);
            Write_1302(0x84,tempa);//改寫時
            Write_1302(0x8e,0x80);
   break;

   case 5:
            Time_Buffer[1]++;
   if(Time_Buffer[1]==60)
      Time_Buffer[1]=0;
   tempa=(Time_Buffer[1])/10*16+(Time_Buffer[1])%10;
            Write_1302(0x8e,0x00);
            Write_1302(0x82,tempa);//改寫分
            Write_1302(0x8e,0x80);
   break;
   case 6:
            Time_Buffer[0]++;
   if(Time_Buffer[0]==60)
      Time_Buffer[0]=0;
   tempa=(Time_Buffer[0])/10*16+(Time_Buffer[0])%10;
            Write_1302(0x8e,0x00);
            Write_1302(0x80,0x80|tempa);//改寫秒
            Write_1302(0x8e,0x80);
   break;
   case 7:
            Time_Buffer[5]++;
   if(Time_Buffer[5]==8)
      Time_Buffer[5]=1;
   tempa=(Time_Buffer[5])/10*16+(Time_Buffer[5])%10;//秒數據寫入DS1302
            Write_1302(0x8e,0x00);
            Write_1302(0x8a,tempa);//改寫星期
            Write_1302(0x8e,0x80);
   break;
   }
   }
   }
   if(s3==0)
      {
   delayms(5);
   if(s3==0)
      {
   while(!s3);
   switch(s1num)
      {
   case 1:
            Time_Buffer[6]--;
   if(Time_Buffer[6]==0)
      Time_Buffer[6]=99;
   break;

   case 2:
            Time_Buffer[4]--;
   if(Time_Buffer[4]==0)
      Time_Buffer[4]=12;
   break;
   case 3:
            Time_Buffer[3]++;
   if(Time_Buffer[3]==0)
      Time_Buffer[3]=30;
   break;
   case 4:
            Time_Buffer[2]--;
   if(Time_Buffer[2]==0)
      Time_Buffer[2]=23;
   break;

   case 5:
            Time_Buffer[1]--;
   if(Time_Buffer[1]==0)
      Time_Buffer[1]=59;
   break;
   case 6:
            Time_Buffer[0]--;
   if(Time_Buffer[0]==0)
      Time_Buffer[0]=59;
   break;
   case 7:
            Time_Buffer[5]--;
   if(Time_Buffer[5]==0)
      Time_Buffer[5]=7;
   break;
   }
   }
   }
   }
}

/*--主程序--*/
void main()
{

LCD_initialize(); //LCD初始化
Display();          //固定顯示的漢字
Time0_initialize();  //中斷初始化，在中斷中顯示刷新的時間
while(1)
{
   Get_Time(); //讀取并刷新時間
   GetTemp();
   keyscan();
      time_adj();
   delayms(300);
}
}

ID:654028 · 發表于 2020-8-12 09:25

讀取數據和定時的時間對比，相同則打開蜂鳴器，過一定時間自動關閉或者按鍵關閉。我只能想到這個辦法。畢竟我也是菜鳥

ID:810978 · 發表于 2020-8-12 10:34

設一個變量作為定時的時間，當時鐘時間與它相同時啟動蜂鳴器，最基礎的方法了吧

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