毕业设计电子时钟程序.doc

#include #define uchar unsigned char #define uint unsigned int#define LCD_PORT P0sbit RS = P10;sbit RW = P11;sbit EN = P12;sbit KEY1 = P13;sbit KEY2 = P14;sbit KEY3 = P15;sbit KEY4 = P16;sbit LED1 = P20;sbit LED2 = P21;sbit BEEP = P22;sbit HW = P33;sbit DS = P34;void Delay(uint t);void Delay_Ms(uint t);void WriteData(uchar DAT);void WriteCommand(uchar COM);void LcdPost(uchar X,uchar Y);void DisplayChar(uchar X,uchar Y,uchar DAT);void DisplayString(uchar X,uchar Y,uchar *p);void InitLcd1602();void reset();bit read_bit();void write_all(uchar date);unsigned char read_all();void tempchange();unsigned int get_temp();void Welcome_Page();void Clean_Screen();void Display_Temper(uint temper);void Display(uchar x,uchar y,uint num);void Display_Date();void Display_Week();void Display_Ring();void Display_Lcd();void Check_Ring();void Check_Temperature();void Key_Scan();void Key_Service();void Beep();void Alarm_Led(uchar num);void Alarm_Ringing();void Timer0_Init();void HW_Init();void System_Init();unsigned char date;unsigned char year,month,day,week,hour,min,sec,ring;unsigned char ring_hour,ring_min,ring_sec;unsigned int temperature;unsigned char flag=0,ring_flag=0;unsigned char hw_data4=0;bit temper_alarm = 0;bit hw_flag = 0;bit set_date = 0;bit set_ring = 0;bit add_flag = 0;bit sub_flag = 0;bit ring_open = 0;bit isRingTime = 0;bit key_on = 0;bit hw_on = 0;void main()System_Init(); /系统初始化while(1)if(set_ring=0)&(set_date=0)Display_Lcd();Check_Ring();Check_Temperature();Key_Scan();void Delay(uint t) /延时微秒函数while(t-);void Delay_Ms(uint t) /延时毫秒函数unsigned int x,y;for(x=t;x0;x-)for(y=110;y0;y-);void WriteData(uchar DAT) /写数据到LCDRS = 1;RW = 0;LCD_PORT = DAT;EN = 1;Delay_Ms(5);EN = 0;void WriteCommand(uchar COM) /写指令到LCDRS = 0;RW = 0;LCD_PORT = COM;EN = 1;Delay_Ms(5);EN = 0;void LcdPost(uchar X,uchar Y) /设置显示坐标函数uchar addr;if(X = 0)addr = 0x80 + Y; else if(X = 1)addr = 0x80 + 0x40 + Y; WriteCommand(addr);void DisplayChar(uchar X,uchar Y,uchar DAT) /显示一个字符LcdPost(X,Y);WriteData(DAT);void DisplayString(uchar X,uchar Y,uchar *p) /显示一个字符串LcdPost(X,Y);while(*p != 0)WriteData(*p);p+;void InitLcd1602()WriteCommand(0x38); /设置16*2显示,5*7点阵,8位数据接口WriteCommand(0x0c); /开显示及光标设置WriteCommand(0x06); /光标移动设置WriteCommand(0x01); /显示清屏Welcome_Page(); /显示欢迎界面Delay_Ms(1000); /延时1000毫秒Clean_Screen(); /清屏void reset()/初始化子程序uint i;DS=0;i=90;while(i0)i-;/低电平后延时750微秒左右DS=1;i=4;while(i0)i-;/高电平后延时40微秒左右等待DS18B20的低电平答复bit read_bit()/读一位数据子程序uint i;bit date;/位变量数据DS=0;i+;/拉低到0后延时6微秒左右DS=1;i+;/拉高到1后延时4微秒左右date=DS;/读数据线上的状态位i=4;while(i0)i-;/延时30微秒左右return(date);/把状态位返回给调用函数unsigned char read_all()/读八位数据(一字节)子程序uchar i,j;for(i=1;i=8;i+)j=read_bit();/把读到的状态位赋给J的第一位j=1;/把date往右移动一位(即把上一次的数据往右移动一位)(无论date原来是什么，新移入的位是0)date=j|date;/J与date进行按位或运算(其实是让刚刚读到的状态位写到date的最高位中)/循环的读状态位，并写入最高位，并每次向右移到，最后八个状态位刚好由低位到高位写入date的八位return(date);/把读到的完整数据返回给调用函数void write_all(uchar date)/写一个字节子程序uint i,j;bit text;/要发送的数据，默认值为0for(j=1;j1;/date右移一位，丢弃第一位状态位，使第二位状态位移到第一位，好让下次赋给text的是date的第二位if(text)/如果要发送数据为1DS=0;i+;i+;/低电平后延时8微秒左右DS=1;/发送数据1，并同时把数据线拉到高电平1i=8;while(i0)i-;/延时70微秒左右返回下一次读数据else/如果要发送数据为0DS=0;i=8;while(i0)i-;/使数据线置低电平15微秒，并发送数据0，保持45微秒，总共70微秒左右DS=1;i+;i+;/使数据线返回高电平1，并延时8微秒左右，确保下次读数据前数据线为高电平1void tempchange()/开始获取温度并转换reset();Delay_Ms(1);/确保DS18B20进入工作write_all(0xcc);/跳过读ROM命令write_all(0x44);/写温度转换指令unsigned int get_temp()/读取寄存器中存储的温度数据uchar a,b;unsigned int temp;double f_temp;EA=0;tempchange();reset();Delay_Ms(1);/确保DS18B20进入工作write_all(0xcc);/跳过读ROM命令write_all(0xbe);/要都RAM中的数据a=read_all();/读低八位数据b=read_all();/读高八位数据temp=b;temp320)temper_alarm = 1;elsetemper_alarm = 0;BEEP = 1;if(temper_alarm)Alarm_Ringing();Alarm_Led(1);void Beep() /蜂鸣器响一下BEEP = 0;Delay_Ms(50);BEEP = 1;void Alarm_Led(uchar num)if(num=1)LED1 = 0;Delay_Ms(100);LED1 = 1;Delay_Ms(100);else if(num=2)LED2 = 0;Delay_Ms(100);LED2 = 1;Delay_Ms(100);void Alarm_Ringing() /闹钟响BEEP = 0;Delay_Ms(20);BEEP = 1;Delay_Ms(20);void Key_Scan()/*红外键盘扫描*/if(key_on=0)&(hw_flag=1)&(isRingTime=0)hw_flag = 0;hw_on = 1;switch(hw_data3)case 0xbb: /左移键 | 进入设置闹钟界面if(set_date=0)TR0 = 0;ring_flag+;set_ring = 1;if(ring_flag=5)ring_flag=0;set_ring=0;TR0 = 1;Display_Ring();break;case 0xea: / + 键if(set_date|set_ring)add_flag = 1;break; case 0xf8: / - 键if(set_date|set_ring) sub_flag = 1;break;case 0xbc: /PLAY键 WriteCommand(0x0c);isRingTime = 0;set_date = 0;set_ring = 0;ring_flag = 0;flag = 0;TR0 = 1;key_on = 0;hw_on = 0;break;default: break;/*独立键盘扫描*/else if(set_ring=0)&(KEY1=0)&(isRingTime=0)&(hw_on=0)/设置日期界面Delay_Ms(5);if(set_ring=0)&(KEY1=0)while(!KEY1);TR0 = 0;flag+;key_on = 1;hw_on = 0;set_date = 1;set_ring = 0;if(flag=8)flag=0;set_date=0;key_on=0;TR0 = 1;else if(set_date=0)&(KEY4=0)&(isRingTime=0)&(hw_on=0) /设置闹钟界面Delay_Ms(5);if(set_date=0)&(KEY4=0)while(!KEY4);TR0 = 0;ring_flag+;key_on = 1;hw_on = 0;set_ring = 1;set_date = 0;if(ring_flag=5)ring_flag=0;set_ring=0;key_on=0;TR0 = 1;Display_Ring();/*/if(set_date|set_ring)&(hw_on=0)if(KEY2=0&(hw_on=0) /按键加Delay_Ms(5);if(KEY2=0)while(!KEY2);add_flag = 1;else if(KEY3=0&(hw_on=0) /按键减Delay_Ms(5);if(KEY3=0)while(!KEY3);sub_flag = 1;else if(set_date=1)&(set_ring=0)&(KEY4=0)&(hw_on=0)/设置日期时，按KEY4键退出Delay_Ms(5);if(set_date=1)&(set_ring=0)&(KEY4=0)while(!KEY4);WriteCommand(0x0c);set_date = 0;flag = 0;key_on = 0;hw_on = 0;TR0 = 1;else if(set_date=0)&(set_ring=1)&(KEY1=0)&(hw_on=0) /设置闹钟时，按KEY1键退出Delay_Ms(5);if(set_date=0)&(set_ring=1)&(KEY1=0)while(!KEY1);WriteCommand(0x0c);set_ring = 0;ring_flag = 0;key_on = 0;hw_on = 0;TR0 = 1;Key_Service();void Key_Service()if(flag!=0)&(ring_flag=0)switch(flag)case 0:WriteCommand(0x0c);break;case 1: LcdPost(1,13);break;case 2: LcdPost(1,10);break;case 3: LcdPost(1,7);break;case 4: LcdPost(0,14);break;case 5: LcdPost(0,11);break;case 6: LcdPost(0,8);break;case 7: LcdPost(0,1);break;default:WriteCommand(0x0c);flag = 0;break;WriteCommand(0x0f);if(add_flag)add_flag = 0;switch(flag)case 1:sec+;if(sec=60)sec = 0;Display(1,12,sec);break;case 2:min+;if(min=60)min = 0;Display(1,9,min);break;case 3:hour+;if(hour=24)hour = 0;Display(1,6,hour);break;case 4:day+;if(month=2)if(year%4=0)&(year%100!=0)|(year%400=0) /闰年 if(day=29)day = 1;elseif(day=30)day = 1;if(month=1)|(month=3)|(month=5)|(month=7)|(month=8)|(month=10)|(month=12)if(day=32)day=1;if(month=4)|(month=6)|(month=9)|(month=10)|(month=11)if(day=31)day=1;Display(0,13,day);break;case 5:month+;if(month=13)month=1;if(year%4=0)&(year%100!=0)|(year%400=0) /闰年if(day28)day = 28;elseif(day29)day = 29;if(month=4)|(month=6)|(month=9)|(month=10)|(month=11)if(day30)day=30;Display(0,10,month);break;case 6:year+;if(year=100)year = 0;Display(0,7,year);break;case 7:week+;if(week=8)week = 1;Display_Week();break;default:break;if(sub_flag)sub_flag = 0;switch(flag)case 1:sec-;if(sec=-1)sec = 59;Display(1,12,sec);break;case 2:min-;if(min=-1)min = 59;Display(1,9,min);break;case 3:hour-;if(hour=-1)hour = 23;Display(1,6,hour);break;case 4:day-;if(month=2)if(year%4=0)&(year%100!=0)|(year%400=0) /闰年if(day=0)day = 28;elseif(day=0)day = 29;if(month=1)|(month=3)|(month=5)|(month=7)|(month=8)|(month=10)|(month=12)if(day=0)day=31;if(month=4)|(month=6)|(month=9)|(month=10)|(month=11)if(day=0)day=30;Display(0,13,day);break;case 5:month-;if(month=0)month = 12;if(year%4=0)&(year%100!=0)|(year%400=0) /闰年if(day28)day = 28;elseif(day29)day = 29;if(month=4)|(month=6)|(month=9)|(month=10)|(month=11)if(day30)day=30;Display(0,10,month);break;case 6:year-;if(year=-1)year = 99;Display(0,7,year);break;case 7:week-;if(week=0)week = 7;Display_Week();break;default:break;/*/if(ring_flag!=0)&(flag=0)switch(ring_flag)case 0:WriteCommand(0x0c);break;case 1: LcdPost(1,13);break;case 2: LcdPost(1,10);break;case 3: LcdPost(1,7);break;case 4: LcdPost(1,15);break;default:WriteCommand(0x0c);ring_flag = 0;break;WriteCommand(0x0f);if(add_flag)add_flag = 0;switch(ring_flag)case 1:ring_sec+;if(ring_sec=60)ring_sec = 0;Display(1,12,ring_sec);break;case 2:ring_min+;if(ring_min=60)ring_min = 0;Display(1,9,ring_min);break;case 3:ring_hour+;if(ring_hour=24)ring_hour = 0;Display(1,6,ring_hour);break;case 4:ring_open = ring_open;if(ring_open) /闹钟开/关DisplayChar(1,15,Y);elseDisplayChar(1,15,N);break;default:break;if(sub_flag)sub_flag = 0;switch(ring_flag)case 1:ring_sec-;if(ring_sec=-1)ring_sec = 59;Display(1,12,ring_sec);break;case 2:ring_min-;if(ring_min=-1)ring_min = 59;Display(1,9,ring_min);break;case 3:ring_hour-;if(ring_hour=-1)ring_hour = 23;Display(1,6,ring_hour);break;case 4:ring_open = ring_open;if(ring_open) /闹钟开/关DisplayChar(1,15,Y);elseDisplayChar(1,15,N);break;default:break;void Timer0_Init()/定时器0初始化TMOD |= 0x01;TH0=(65536-10000)/256;TL0=(65536-10000)%256;TR0=1;ET0=1;EA=1;void HW_Init() /红外中断初始化TMOD |= 0X10;/定时器1的方式1，16位计数器，用来计数时间TH1=0;TL1=0;EA=1;/首先开启总中断EX1=1; /开启外部中断 1IT1=1; /设置成下降沿触发方式TR1=1;void System_Init()year = 13;month = 5;day = 1;week = 2;hour = 23;min = 59;sec = 50;ring_hour = 0;ring_min = 0;ring_sec = 0;InitLcd1602(); /初始化液晶Timer0_Init(); /初始化中断HW_Init(); /初始化红外void Timer0_interrupt() interrupt 1unsigned int count;TH0=(65536-10000)/256;TL0=(65536-10000)%256;count+;/if(isRingTime)/BEEP=BEEP;LED2=LED2;/if(temper_al