DS时钟DSB用LCD显示系统很简单

1、DS1302时钟+DS18B20用LCD1602显示（系统很简单）看仔细点啊 貌似很多这样的图但可不一样喔 最小系统是用AT89s52搭建的！记得回去自己用protues和Keil仿真一下，这样有利于进一步了解！故未将仿真好的代码上传，如果真的需要的话可以和我联系！程序代码：#include #include /#include LCD1602.h/#include DS1302.h#define uint unsigned int#define uchar unsigned charsbit DS1302_CLK = P17; /实时时钟时钟线引脚sbit DS1302_IO = P16;

2、/实时时钟数据线引脚sbit DS1302_RST = P15; /实时时钟复位线引脚sbit wireless_1 = P30;sbit wireless_2 = P31;sbit wireless_3 = P32;sbit wireless_4 = P33;sbit ACC0 = ACC0;sbit ACC7 = ACC7;char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; /秒,分,时到日,月,年位闪的计数sbit Set = P20; /模式切换键sbit Up = P21; /加法按钮sb

3、it Down = P22; /减法按钮sbit out = P23; /立刻跳出调整模式按钮sbit DQ = P10; /温度传送数据IO口char done,count,temp,flag,up_flag,down_flag;uchar temp_value; /温度值uchar TempBuffer5,week_value2;void show_time(); /液晶显示程序/*1602液晶显示部分子程序*/Port Definitions*sbit LcdRs= P25;sbit LcdRw= P26;sbit LcdEn = P27;sfr DBPort = 0x80;/P0=0x

4、80,P1=0x90,P2=0xA0,P3=0xB0.数据端口/内部等待函数*unsigned char LCD_Wait(void)LcdRs=0;LcdRw=1;_nop_();LcdEn=1;_nop_();LcdEn=0;return DBPort;/向LCD写入命令或数据*#define LCD_COMMAND0 / Command#define LCD_DATA1 / Data#define LCD_CLEAR_SCREEN0x01 / 清屏#define LCD_HOMING 0x02 / 光标返回原点void LCD_Write(bit style, unsigned char

5、 input)LcdEn=0;LcdRs=style;LcdRw=0;_nop_();DBPort=input;_nop_();/注意顺序LcdEn=1;_nop_();/注意顺序LcdEn=0;_nop_();LCD_Wait();/设置显示模式*#define LCD_SHOW0x04 /显示开#define LCD_HIDE0x00 /显示关#define LCD_CURSOR0x02 /显示光标#define LCD_NO_CURSOR0x00 /无光标#define LCD_FLASH0x01 /光标闪动#define LCD_NO_FLASH0x00 /光标不闪动void LCD_

6、SetDisplay(unsigned char DisplayMode)LCD_Write(LCD_COMMAND, 0x08|DisplayMode);/设置输入模式*#define LCD_AC_UP0x02#define LCD_AC_DOWN0x00 / default#define LCD_MOVE0x01 / 画面可平移#define LCD_NO_MOVE0x00 /defaultvoid LCD_SetInput(unsigned char InputMode)LCD_Write(LCD_COMMAND, 0x04|InputMode);/初始化LCD*void LCD_In

7、itial()LcdEn=0;LCD_Write(LCD_COMMAND,0x38); /8位数据端口,2行显示,5*7点阵LCD_Write(LCD_COMMAND,0x38);LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); /开启显示, 无光标LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); /清屏LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); /AC递增, 画面不动/液晶字符输入的位置*void GotoXY(unsigned char x, unsigned char y)if(y=0)LCD_W

8、rite(LCD_COMMAND,0x80|x);if(y=1)LCD_Write(LCD_COMMAND,0x80|(x-0x40);/将字符输出到液晶显示void Print(unsigned char *str)while(*str!=0)LCD_Write(LCD_DATA,*str);str+;/*DS1302时钟部分子程序*/typedef struct _SYSTEMTIME_unsigned char Second;unsigned char Minute;unsigned char Hour;unsigned char Week;unsigned char Day;unsig

9、ned char Month;unsigned char Year;unsigned char DateString11;unsigned char TimeString9;SYSTEMTIME;/定义的时间类型SYSTEMTIME CurrentTime;#define AM(X)X#define PM(X)(X+12) / 转成24小时制#define DS1302_SECOND0x80 /时钟芯片的寄存器位置,存放时间#define DS1302_MINUTE0x82#define DS1302_HOUR0x84#define DS1302_WEEK0x8A#define DS1302_

10、DAY0x86#define DS1302_MONTH0x88#define DS1302_YEAR0x8Cvoid DS1302InputByte(unsigned char d) /实时时钟写入一字节(内部函数) unsigned char i; ACC = d; for(i=8; i0; i-) DS1302_IO = ACC0; /相当于汇编中的 RRC DS1302_CLK = 1; DS1302_CLK = 0; ACC = ACC 1; unsigned char DS1302OutputByte(void) /实时时钟读取一字节(内部函数) unsigned char i; f

11、or(i=8; i0; i-) ACC = ACC 1; /相当于汇编中的 RRC ACC7 = DS1302_IO; DS1302_CLK = 1; DS1302_CLK = 0; return(ACC);void Write1302(unsigned char ucAddr, unsigned char ucDa)/ucAddr: DS1302地址, ucData: 要写的数据 DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr); / 地址，命令 DS1302InputByte(ucDa); / 写

12、1Byte数据 DS1302_CLK = 1; DS1302_RST = 0;unsigned char Read1302(unsigned char ucAddr)/读取DS1302某地址的数据 unsigned char ucData; DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr|0x01); / 地址，命令 ucData = DS1302OutputByte(); / 读1Byte数据 DS1302_CLK = 1; DS1302_RST = 0; return(ucData);void D

13、S1302_GetTime(SYSTEMTIME *Time) /获取时钟芯片的时钟数据到自定义的结构型数组unsigned char ReadValue;ReadValue = Read1302(DS1302_SECOND);Time-Second = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MINUTE);Time-Minute = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_HOUR);Time-H

14、our = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_DAY);Time-Day = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_WEEK);Time-Week = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MONTH);Time-Month = (ReadValue&0x70)4)*10 + (ReadValu

15、e&0x0F);ReadValue = Read1302(DS1302_YEAR);Time-Year = (ReadValue&0x70)4)*10 + (ReadValue&0x0F);void DateToStr(SYSTEMTIME *Time) /将时间年,月,日,星期数据转换成液晶显示字符串,放到数组里DateString if(hide_year2) /这里的if,else语句都是判断位闪烁,2就不显示,输出字符串为 2007/07/22 Time-DateString0 = 2; Time-DateString1 = 0; Time-DateString2 = Time-Yea

16、r/10 + 0; Time-DateString3 = Time-Year%10 + 0; else Time-DateString0 = ; Time-DateString1 = ; Time-DateString2 = ; Time-DateString3 = ;Time-DateString4 = /;if(hide_monthDateString5 = Time-Month/10 + 0; Time-DateString6 = Time-Month%10 + 0; else Time-DateString5 = ; Time-DateString6 = ; Time-DateStri

17、ng7 = /;if(hide_dayDateString8 = Time-Day/10 + 0; Time-DateString9 = Time-Day%10 + 0; else Time-DateString8 = ; Time-DateString9 = ; if(hide_weekWeek%10 + 0; /星期的数据另外放到 week_value数组里,跟年,月,日的分开存放,因为等一下要在最后显示 else week_value0 = ; week_value1 = 0;Time-DateString10 = 0; /字符串末尾加 0 ,判断结束字符void TimeToStr(S

18、YSTEMTIME *Time) /将时,分,秒数据转换成液晶显示字符放到数组 TimeString; if(hide_hourTimeString0 = Time-Hour/10 + 0; Time-TimeString1 = Time-Hour%10 + 0; else Time-TimeString0 = ; Time-TimeString1 = ;Time-TimeString2 = :; if(hide_minTimeString3 = Time-Minute/10 + 0; Time-TimeString4 = Time-Minute%10 + 0; else Time-TimeS

19、tring3 = ; Time-TimeString4 = ; Time-TimeString5 = :; if(hide_secTimeString6 = Time-Second/10 + 0; Time-TimeString7 = Time-Second%10 + 0; else Time-TimeString6 = ; Time-TimeString7 = ; Time-DateString8 = 0;void Initial_DS1302(void) /时钟芯片初始化unsigned char Second=Read1302(DS1302_SECOND);if(Second&0x80)

20、 /判断时钟芯片是否关闭 Write1302(0x8e,0x00); /写入允许Write1302(0x8c,0x07); /以下写入初始化时间 日期:07/07/25.星期: 3. 时间: 23:59:55Write1302(0x88,0x07);Write1302(0x86,0x25);Write1302(0x8a,0x07);Write1302(0x84,0x23);Write1302(0x82,0x59);Write1302(0x80,0x55);Write1302(0x8e,0x80); /禁止写入/*ds18b20子程序*/*ds18b20延迟子函数（晶振12MHz ）*/void

21、 delay_18B20(unsigned int i)while(i-);/*ds18b20初始化函数*/void Init_DS18B20(void) unsigned char x=0; DQ = 1; /DQ复位 delay_18B20(8); /稍做延时 DQ = 0; /单片机将DQ拉低 delay_18B20(80); /精确延时 大于 480us DQ = 1; /拉高总线 delay_18B20(14); x=DQ; /稍做延时后 如果x=0则初始化成功 x=1则初始化失败 delay_18B20(20);/*ds18b20读一个字节*/unsigned char ReadO

22、neChar(void)uchar i=0;uchar dat = 0;for (i=8;i0;i-) DQ = 0; / 给脉冲信号 dat=1; DQ = 1; / 给脉冲信号 if(DQ) dat|=0x80; delay_18B20(4); return(dat);/*ds18b20写一个字节*/void WriteOneChar(uchar dat)unsigned char i=0;for (i=8; i0; i-) DQ = 0;DQ = dat&0x01; delay_18B20(5);DQ = 1; dat=1;/*读取ds18b20当前温度*/void ReadTemp(v

23、oid)unsigned char a=0;unsigned char b=0;unsigned char t=0;Init_DS18B20();WriteOneChar(0xCC); / 跳过读序号列号的操作WriteOneChar(0x44); / 启动温度转换delay_18B20(100); / this message is wery importantInit_DS18B20();WriteOneChar(0xCC); /跳过读序号列号的操作WriteOneChar(0xBE); /读取温度寄存器等（共可读9个寄存器） 前两个就是温度delay_18B20(100);a=ReadO

24、neChar(); /读取温度值低位b=ReadOneChar(); /读取温度值高位temp_value=b4;void temp_to_str() /温度数据转换成液晶字符显示 TempBuffer0=temp_value/10+0; /十位 TempBuffer1=temp_value%10+0; /个位 TempBuffer2=0xdf; /温度符号 TempBuffer3=C; TempBuffer4=0;void Delay1ms(unsigned int count)unsigned int i,j;for(i=0;icount;i+)for(j=0;j0;delay-) for

25、(i=0;i0x59) /超过59秒,清零 temp=0; break; case 2: temp=Read1302(DS1302_MINUTE); /读取分数 temp=temp+1; /分数加1 up_flag=1; if(temp0x59) /超过59分,清零 temp=0; break; case 3: temp=Read1302(DS1302_HOUR); /读取小时数 temp=temp+1; /小时数加1 up_flag=1; if(temp0x23) /超过23小时,清零 temp=0; break; case 4: temp=Read1302(DS1302_WEEK); /读

26、取星期数 temp=temp+1; /星期数加1 up_flag=1; if(temp0x7) temp=1; break; case 5: temp=Read1302(DS1302_DAY); /读取日数 temp=temp+1; /日数加1 up_flag=1; if(temp0x31) temp=1; break; case 6: temp=Read1302(DS1302_MONTH); /读取月数 temp=temp+1; /月数加1 up_flag=1; if(temp0x12) temp=1; break; case 7: temp=Read1302(DS1302_YEAR); /

27、读取年数 temp=temp+1; /年数加1 up_flag=1; if(temp0x85) temp=0; break; default:break; while(Up=0); while(wireless_2=1); /void Downkey()/降序按键Down=1; if(Down=0|wireless_3=1) mdelay(8); switch(count) case 1: temp=Read1302(DS1302_SECOND); /读取秒数 temp=temp-1; /秒数减1 down_flag=1; /数据调整后更新标志 if(temp=0x7f) /小于0秒,返回59

28、秒 temp=0x59; break; case 2: temp=Read1302(DS1302_MINUTE); /读取分数 temp=temp-1; /分数减1 down_flag=1; if(temp=-1) temp=0x59; /小于0秒,返回59秒 break; case 3: temp=Read1302(DS1302_HOUR); /读取小时数 temp=temp-1; /小时数减1 down_flag=1; if(temp=-1) temp=0x23; break; case 4: temp=Read1302(DS1302_WEEK); /读取星期数 temp=temp-1;

29、/星期数减1 down_flag=1; if(temp=0) temp=0x7; break; case 5: temp=Read1302(DS1302_DAY); /读取日数 temp=temp-1; /日数减1 down_flag=1; if(temp=0) temp=31; break; case 6: temp=Read1302(DS1302_MONTH); /读取月数 temp=temp-1; /月数减1 down_flag=1; if(temp=0) temp=12; break; case 7: temp=Read1302(DS1302_YEAR); /读取年数 temp=tem

30、p-1; /年数减1 down_flag=1; if(temp=-1) temp=0x85; break; default:break; while(Down=0); while(wireless_3=1); void Setkey()/模式选择按键Set=1;if(Set=0|wireless_4=1) mdelay(8); count=count+1; /Setkey按一次,count就加1 done=1; /进入调整模式 while(Set=0); while(wireless_4=1); void keydone()/按键功能执行 uchar Second; if(flag=0) /关

31、闭时钟,停止计时 Write1302(0x8e,0x00); /写入允许 temp=Read1302(0x80); Write1302(0x80,temp|0x80); Write1302(0x8e,0x80); /禁止写入 flag=1; Setkey(); /扫描模式切换按键 switch(count) case 1:do /count=1,调整秒 outkey(); /扫描跳出按钮 Upkey(); /扫描加按钮 Downkey(); /扫描减按钮 if(up_flag=1|down_flag=1) /数据更新，重新写入新的数据 Write1302(0x8e,0x00); /写入允许 W

32、rite1302(0x80,temp|0x80); /写入新的秒数 Write1302(0x8e,0x80); /禁止写入 up_flag=0; down_flag=0; hide_sec+; /位闪计数 if(hide_sec3) hide_sec=0; show_time(); /液晶显示数据 while(count=2);break; case 2:do /count=2,调整分 hide_sec=0; outkey(); Upkey(); Downkey(); if(temp0x60) temp=0; if(up_flag=1|down_flag=1) Write1302(0x8e,0

33、x00); /写入允许 Write1302(0x82,temp); /写入新的分数 Write1302(0x8e,0x80); /禁止写入 up_flag=0; down_flag=0; hide_min+; if(hide_min3) hide_min=0; show_time(); while(count=3);break; case 3:do /count=3,调整小时 hide_min=0; outkey(); Upkey(); Downkey(); if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /写入允许 Write1302(0x84

34、,temp); /写入新的小时数 Write1302(0x8e,0x80); /禁止写入 up_flag=0; down_flag=0; hide_hour+; if(hide_hour3) hide_hour=0; show_time(); while(count=4);break; case 4:do /count=4,调整星期 hide_hour=0; outkey(); Upkey(); Downkey(); if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /写入允许 Write1302(0x8a,temp); /写入新的星期数 Writ

35、e1302(0x8e,0x80); /禁止写入 up_flag=0; down_flag=0; hide_week+; if(hide_week3) hide_week=0; show_time(); while(count=5);break; case 5:do /count=5,调整日 hide_week=0; outkey(); Upkey(); Downkey(); if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /写入允许 Write1302(0x86,temp); /写入新的日数 Write1302(0x8e,0x80); /禁止写入 up_flag=0; down_flag=0; hide_day+; if(hide_day3) hide_day=0;