电子时钟的设计.doc

电子时钟的设计第三组组长：第三组成员：一设计目的：1. 理解掌握定时/计数器和中断,温度传感器、时钟芯片的使用方法。2. 掌握微机常用的输入输出方式及接口技术。3. 掌握一定的keil语言知识，培养自己的动手操作能力。4. 学习程序设计的基本思路和方法。二程序内容：第一部分：定义显示界面。第二部分：调用Ds1320时间。第三部分：用Ds18b20测温度。第四部分：控制调整时间的程序。 三程序流程图如下：#include #include #define uchar unsigned char#define uint unsigned intsbit SCK=P37;/时钟sbit SDA=P36;/数据sbit RST = P35;/ DS1302复位sbit rs=P15;sbit rw=P16;sbit e=P17;sbit s1=P10;sbit s2=P11;sbit s3=P12;sbit s4=P13;unsigned char l_tmpdate7=0x00,0x00,0x0c,0x02,0x05,0x40,0x0c;/秒分时日月周年unsigned char l_tmpdisplay20;code unsigned char write_rtc_address7=0x80,0x82,0x84,0x86,0x88,0x8a,0x8c; /秒分时日月周年 最低位读写位code unsigned char read_rtc_address7=0x81,0x83,0x85,0x87,0x89,0x8b,0x8d; uchar flag,s1num,count,flag1,flag2;unsigned char shi,fen,miao,nian,yue,ri,xq;uchar code Weeks3=SUN,MON,TUE,WED,THU,FRI,SAT,SUN;uchar lcd1602_line1= 000;sbit D18B20=P30; / 18b20的引脚定义#define NOP() _nop_() /* 定义空指令 */#define _Nop() _nop_() /*定义空指令*/void TempDelay (uchar us);/18b20的函数声明void Init18b20 (void);void WriteByte (uchar wr); /单字节写入void read_bytes (uchar j);uchar CRC (uchar j);void GemTemp (void);void TemperatuerResult(void);void GetTemp();void system_Ini1();void system_Ini();void display1();bit flag3;uint Temperature;/用来存放读出温度后的值uchar temp_buff9; /存储读取的字节，read scratchpad为9字节，read rom ID为8字节uchar *p,TIM; /声明引用外部函数extern uint Temperature; / 声明引用外部变量/else IOunsigned LedNumVal;/*/* 函数声明 */*/void Write_Ds1302_byte(unsigned char temp); void Write_Ds1302( unsigned char address,unsigned char dat );unsigned char Read_Ds1302 ( unsigned char address );void Read_RTC(void);/read RTC void Set_RTC(void); /set RTC void InitTIMER0(void);/inital timer0void delay(uchar a);void lcd_mang();void write_lcd1602(uchar cmd,uchar i);void ini_lcd1602();void lcd_xs();void keyscan();void write_sfm(uchar add ,uchar date);void write_sfm1(uchar add ,uchar date);/*/* 主函数 */*/void main(void) system_Ini(); / 系统初始化 system_Ini1(); ini_lcd1602(); /Set_RTC(); /写入时钟值，如果使用备用电池时候，不需要没每次上电写入，此程序应该屏蔽while(1) keyscan(); Read_RTC(); if(flag=0) lcd_xs(); GetTemp(); display1(); void delay(uchar a) uchar i; while(a-) for(i=0;i250;i+) _nop_(); _nop_(); _nop_(); _nop_(); /判忙 void lcd_mang() rs=0; rw=1; e=1; _nop_();_nop_();_nop_();_nop_(); while(P0&0x80); e=0; /1602的写void write_lcd1602(uchar cmd,uchar i) lcd_mang();rs=i;rw=0;e=0;_nop_();_nop_();e=1; _nop_();_nop_();P0=cmd; _nop_();_nop_();_nop_();_nop_();e=0;/1602的初始化void ini_lcd1602() write_lcd1602(0x38,0); delay(1); write_lcd1602(0x0c,0); delay(1); write_lcd1602(0x06,0); delay(1); write_lcd1602(0x01,0); delay(1); /*/* 写一个字节 */*/void Write_Ds1302_Byte(unsigned char temp) unsigned char i; for (i=0;i=1; /右移一位 SCK=1; /*/* 写入DS1302 */*/void Write_Ds1302( unsigned char address,unsigned char dat ) RST=0;_nop_(); SCK=0;_nop_(); RST=1; _nop_(); /启动 Write_Ds1302_Byte(address);/发送地址 Write_Ds1302_Byte(dat);/发送数据 RST=0; /恢复/*/* 读出DS1302数据 */*/unsigned char Read_Ds1302 ( unsigned char address ) unsigned char i,temp=0x00; RST=0;_nop_();_nop_(); SCK=0;_nop_();_nop_(); RST=1;_nop_();_nop_(); Write_Ds1302_Byte(address); for (i=0;i=1;/右移一位 _nop_(); _nop_(); _nop_(); SCK=1; return (temp);/返回/*/* 读时钟数据 */*/void Read_RTC(void) /读取 日历 unsigned char i,*p; p=read_rtc_address; /地址传递 for(i=0;i7;i+) /分7次读取 秒分时日月周年 l_tmpdatei=Read_Ds1302(*p); p+; /*/* 设定时钟数据 */*/void Set_RTC(void) /设定 日历unsigned char i,*p,tmp;for(i=0;i7;i+) /BCD处理tmp=l_tmpdatei/10;l_tmpdatei=l_tmpdatei%10;l_tmpdatei=l_tmpdatei+tmp*16; Write_Ds1302(0x8E,0X00); p=write_rtc_address;/传地址 for(i=0;i7;i+)/7次写入 秒分时日月周年 Write_Ds1302(*p,l_tmpdatei); p+; Write_Ds1302(0x8E,0x80); /*显示*/void lcd_xs() uchar i; l_tmpdisplay0=l_tmpdate6/16+0x30;/数据的转换，因我们采用数码管09的显示,将数据分开l_tmpdisplay1=l_tmpdate6%16+0x30;l_tmpdisplay2=/; /加入-l_tmpdisplay3=l_tmpdate4/16+0x30;l_tmpdisplay4=l_tmpdate4%16+0x30;l_tmpdisplay5=/;l_tmpdisplay6=l_tmpdate3/16+0x30;l_tmpdisplay7=l_tmpdate3%16+0x30;l_tmpdisplay8=l_tmpdate2/16+0x30;/数据的转换，因我们采用数码管09的显示,将数据分开l_tmpdisplay9=l_tmpdate2%16+0x30;l_tmpdisplay10=:; /加入-l_tmpdisplay11=l_tmpdate1/16+0x30;l_tmpdisplay12=l_tmpdate1%16+0x30; l_tmpdisplay14=l_tmpdate0/16+0x30;l_tmpdisplay15=l_tmpdate0%16+0x30;for(i=0;i3;i+) lcd1602_line1i+13=Weeksl_tmpdate5&0x07i;/星期xq=l_tmpdate5&0x07;flag2=l_tmpdate5;miao=l_tmpdate0/16*10+l_tmpdate0%16;fen=l_tmpdate1/16*10+l_tmpdate1%16;shi=l_tmpdate2/16*10+l_tmpdate2%16;ri=l_tmpdate3/16*10+l_tmpdate3%16;yue=l_tmpdate4/16*10+l_tmpdate4%16;nian=l_tmpdate6/16*10+l_tmpdate6%16;write_lcd1602(0x80+12,0); write_lcd1602(0x80,0); /显示年月日 for(i=0;i=7;i+) write_lcd1602(l_tmpdisplayi,1); write_lcd1602(0x80+12,0);/显示星期 for(i=0;i3;i+) write_lcd1602( lcd1602_line1i+13,1); write_lcd1602(0x80+0x40+2,0); /显示时分秒 for(i=8;i=12;i+) write_lcd1602(l_tmpdisplayi,1); write_lcd1602(0x80+0x40+8,0); for(i=14;i=15;i+) write_lcd1602(l_tmpdisplayi,1); /*键盘扫描*/ void keyscan()s4=0;if(s1=0)delay(15);if(s1=0) TR0=0;flag=1;s1num+;while(!s1);delay(10);while(!s1);if(s1num=1)write_lcd1602(0x80+0x40+9,0);flag1=:;write_lcd1602(0x80+0x40+7,0);write_lcd1602(flag1,1);write_lcd1602(0x80+0x40+9,0); write_lcd1602(0x0f,0); if(s1num=2)write_lcd1602(0x80+0x40+6,0);if(s1num=3)write_lcd1602(0x80+0x40+3,0); if(s1num=4)write_lcd1602(0x80+14,0);if(s1num=5)write_lcd1602(0x80+7,0);if(s1num=6)write_lcd1602(0x80+4,0);if(s1num=7)write_lcd1602(0x80+1,0);if(s1num=8) s1num=0;write_lcd1602(0x0c,0); flag=0; Write_Ds1302(0x8E,0X00); Write_Ds1302( 0x80,miao/10*16+miao%10); Write_Ds1302( 0x82,fen/10*16+fen%10 );Write_Ds1302( 0x84,shi/10*16+shi%10 );Write_Ds1302( 0x86,ri/10*16+ri%10); Write_Ds1302( 0x88,yue/10*16+yue%10 );Write_Ds1302( 0x8c,nian/10*16+nian%10 ); Write_Ds1302( 0x8a,flag2); Write_Ds1302(0x8E,0X80); TR0=1; if(s1num!=0)if(s2=0)delay(15);if(s2=0) while(!s2);delay(5); while(!s1);if(s1num=1) miao+; if(miao=60) miao=0; write_sfm(8 ,miao); write_lcd1602(0x80+0x40+9,0); if(s1num=2)fen+;if(fen=60)fen=0;write_sfm(5,fen); write_lcd1602(0x80+0x40+6,0);if(s1num=3)shi+;if(shi=24)shi=0;write_sfm(2,shi);write_lcd1602(0x80+0x40+3,0);if(s1num=4) uchar i; flag2+;if(flag2=7)flag2=0; xq+; if(xq=7) xq=0;for(i=0;i3;i+) lcd1602_line1i+13=Weeksxqi;/星期write_lcd1602(0x80+12,0); for(i=0;i3;i+) write_lcd1602( lcd1602_line1i+13,1); write_lcd1602(0x80+14,0); if(s1num=5)ri+;if(ri=31)ri=0;write_sfm1(6,ri);write_lcd1602(0x80+7,0);if(s1num=6)yue+;if(yue=13)yue=1;write_sfm1(3,yue);write_lcd1602(0x80+4,0);if(s1num=7)nian+;if(nian=100)nian=0;write_sfm1(0,nian);write_lcd1602(0x80+1,0);if(s3=0)delay(15);if(s3=0)while(!s3);delay(5);while(!s1);if(s1num=1)miao-;if(miao=-1)miao=59;write_sfm(8,miao); write_lcd1602(0x80+0x40+9,0);if(s1num=2)fen-;if(fen=-1)fen=59;write_sfm(5,fen); write_lcd1602(0x80+0x40+6,0);if(s1num=3) shi-;if(shi=-1)shi=23;write_sfm(2,shi);write_lcd1602(0x80+0x40+3,0);if(s1num=4) uchar i; flag2-;if(flag2=-1)flag2=6; xq-; if(xq=-1) xq=6;for(i=0;i3;i+) lcd1602_line1i+13=Weeksxqi;/星期write_lcd1602(0x80+12,0); for(i=0;i3;i+) write_lcd1602( lcd1602_line1i+13,1); write_lcd1602(0x80+14,0); if(s1num=5)ri-;if(ri=-1)ri=30;write_sfm1(6,ri);write_lcd1602(0x80+7,0);if(s1num=6)yue-;if(yue=0)yue=12;write_sfm1(3,yue);write_lcd1602(0x80+4,0);if(s1num=7)nian-;if(nian=-1)nian=99;write_sfm1(0,nian);write_lcd1602(0x80+1,0); void write_sfm(uchar add ,uchar date)uchar ss,ff;ss=date/10; ff=date%10; write_lcd1602(0x80+0x40+add,0); write_lcd1602( 0x30+ss,1) ;write_lcd1602( 0x30+ff,1) ;void write_sfm1(uchar add ,uchar date)uchar ss,ff;ss=date/10; ff=date%10; write_lcd1602(0x80+add,0); write_lcd1602( 0x30+ss,1) ;write_lcd1602( 0x30+ff,1) ;void system_Ini1() TMOD=0x01;TH0=(65536-5000)/256; TL0=(65536-5000)%256;EA=1;ET0=1;TR0=1; void timer0() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256;count+;if(count=20)count=0; flag1=:;write_lcd1602(0x80+0x40+7,0); write_lcd1602(flag1,1); delay(35);write_lcd1602(0x01,0);/*/void system_Ini() TMOD|= 0x11; TH1 = 0xD8; /10 TL1 = 0xF0;IE = 0x8A; TR1 = 1;/*Function:延时处理*parameter:*Return:*Modify:*/void TempDelay (uchar us)while(us-);/*Function:18B20初始化*parameter:*Return:*Modify:*/void Init18b20 (void)D18B20=1;_nop_();D18B20=0;TempDelay(80); /delay 530 uS/80_nop_();D18B20=1;TempDelay(14); /delay 100 uS/14_nop_();_nop_();_nop_();if(D18B20=0)flag3 = 1; /detect 1820 success!elseflag3 = 0; /detect 1820 fail!TempDelay(20); /20_nop_();_nop_();D18B20 = 1;/*Function:向18B20写入一个字节*parameter:*Return:*Modify:*/void WriteByte (uchar wr) /单字节写入unsigned char idata i;for (i=0;i= 1;/*Function:读18B20的一个字节*parameter:*Return:*Modify:*/unsigned char ReadByte (void) /读取单字节unsigned char idata i,u=0;for(i=0;i= 1;D18B20 = 1;if(D18B20=1)u |= 0x80;TempDelay (2);_nop_();return(u);/*Function:读18B20*parameter:*Return:*Modify:*/void read_bytes (uchar j) unsigned char idata i; for(i=0;ij;i+) *p = ReadByte(); p+; /*Function:读取温度*parameter:*Return:*Modify:*/void GemTemp (void) Temperature = temp_buff1*0x100 + temp_buff0;/ Temperature *= 0.625;Temperature /= 16;TempDelay(1);/*Function:18B20ID全处理*parameter:*Return:*Modify:*/void TemperatuerResult(void)Init18b20 ();WriteByte(0xcc); /skip romWriteByte(0x44); /Temperature convertInit18b20 ();WriteByte(0xcc); /skip romWriteByte(0xbe); /read Temperaturep = temp_buff;read_bytes (9);GemTemp();void GetTemp() if(TIM=100) /每隔 1000ms 读取温度 TIM=0; TemperatuerResult();void display1() /*以下将读18b20的数据送到LED数码管显示*