DS1302時鐘+DS18B20+無線遙控應用程序

1、. #include <REG51.H>#include <intrins.h>/#include "LCD1602.h"/#include "DS1302.h"#define uint unsigned int#define uchar unsigned charsbit DS1302_CLK = P17; /實時時鐘時鐘線引腳 sbit DS1302_IO = P16; /實時時鐘數(shù)據(jù)線引腳 sbit DS1302_RST = P15; /實時時鐘復位線引腳sbit wireless_1 = P30;sbit wireless

2、_2 = P31;sbit wireless_3 = P32;sbit wireless_4 = P33;sbit led = P31;sbit beef = P32;sbit ACC0 = ACC0;sbit ACC7 = ACC7;char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; /秒,分,時到日,月,年位閃的計數(shù)sbit Set = P20; /模式切換鍵sbit Up = P21; /加法按鈕sbit Down = P22; /減法按鈕sbit out = P23; /立刻跳出調整模式按鈕

3、sbit DQ = P10; /溫度傳送數(shù)據(jù)IO口char done,count,temp,flag,up_flag,down_flag;uchar temp_value; /溫度值uchar TempBuffer5,week_value2;void show_time(); /液晶顯示程序/*1602液晶顯示部分子程序*/Port Definitions*sbit LcdRs= P25;sbit LcdRw= P26;sbit LcdEn = P27;sfr DBPort = 0x80;/P0=0x80,P1=0x90,P2=0xA0,P3=0xB0.數(shù)據(jù)端口/內部等待函數(shù)*unsigned

4、 char LCD_Wait(void)LcdRs=0;LcdRw=1;_nop_();LcdEn=1;_nop_(); LcdEn=0;return DBPort;/向LCD寫入命令或數(shù)據(jù)*#define LCD_COMMAND0 / Command#define LCD_DATA1 / Data#define LCD_CLEAR_SCREEN0x01 / 清屏#define LCD_HOMING 0x02 / 光標返回原點void LCD_Write(bit style, unsigned char input)LcdEn=0;LcdRs=style;LcdRw=0;_nop_();DBP

5、ort=input;_nop_();/注意順序LcdEn=1;_nop_();/注意順序LcdEn=0;_nop_();LCD_Wait();/設置顯示模式*#define LCD_SHOW0x04 /顯示開#define LCD_HIDE0x00 /顯示關 #define LCD_CURSOR0x02 /顯示光標#define LCD_NO_CURSOR0x00 /無光標 #define LCD_FLASH0x01 /光標閃動#define LCD_NO_FLASH0x00 /光標不閃動void LCD_SetDisplay(unsigned char DisplayMode)LCD_Wri

6、te(LCD_COMMAND, 0x08|DisplayMode);/設置輸入模式*#define LCD_AC_UP0x02#define LCD_AC_DOWN0x00 / default#define LCD_MOVE0x01 / 畫面可平移#define LCD_NO_MOVE0x00 /defaultvoid LCD_SetInput(unsigned char InputMode)LCD_Write(LCD_COMMAND, 0x04|InputMode);/初始化LCD*void LCD_Initial()LcdEn=0;LCD_Write(LCD_COMMAND,0x38);

7、/8位數(shù)據(jù)端口,2行顯示,5*7點陣LCD_Write(LCD_COMMAND,0x38);LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); /開啟顯示, 無光標LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); /清屏LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); /AC遞增, 畫面不動/液晶字符輸入的位置*void GotoXY(unsigned char x, unsigned char y)if(y=0)LCD_Write(LCD_COMMAND,0x80|x);if(y=1)LCD_Write(LC

8、D_COMMAND,0x80|(x-0x40);/將字符輸出到液晶顯示void Print(unsigned char *str)while(*str!='0') /*8888888888888888888*/if(temp_value >= 0x1e) /溫度大于30，則報警 led=0; beef=0;else led=1; beef=1;LCD_Write(LCD_DATA,*str);str+;/*DS1302時鐘部分子程序*/typedef struct _SYSTEMTIME_unsigned char Second;unsigned char Minute;

9、unsigned char Hour;unsigned char Week;unsigned char Day;unsigned char Month;unsigned char Year;unsigned char DateString11;unsigned char TimeString9;SYSTEMTIME;/定義的時間類型SYSTEMTIME CurrentTime;#define AM(X)X#define PM(X)(X+12) / 轉成24小時制#define DS1302_SECOND0x80 /時鐘芯片的寄存器位置,存放時間#define DS1302_MINUTE0x82

10、#define DS1302_HOUR0x84 #define DS1302_WEEK0x8A#define DS1302_DAY0x86#define DS1302_MONTH0x88#define DS1302_YEAR0x8C void DS1302InputByte(unsigned char d) /實時時鐘寫入一字節(jié)(內部函數(shù)) unsigned char i; ACC = d; for(i=8; i>0; i-) DS1302_IO = ACC0; /相當于匯編中的 RRC DS1302_CLK = 1; DS1302_CLK = 0; ACC = ACC >>

11、 1; unsigned char DS1302OutputByte(void) /實時時鐘讀取一字節(jié)(內部函數(shù)) unsigned char i; for(i=8; i>0; i-) ACC = ACC >>1; /相當于匯編中的 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: 要寫的數(shù)據(jù) DS1302_RST = 0; DS

12、1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr); / 地址，命令 DS1302InputByte(ucDa); / 寫1Byte數(shù)據(jù) DS1302_CLK = 1; DS1302_RST = 0; unsigned char Read1302(unsigned char ucAddr)/讀取DS1302某地址的數(shù)據(jù) unsigned char ucData; DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr|0x01); / 地址，命令 ucD

13、ata = DS1302OutputByte(); / 讀1Byte數(shù)據(jù) DS1302_CLK = 1; DS1302_RST = 0; return(ucData);void DS1302_GetTime(SYSTEMTIME *Time) /獲取時鐘芯片的時鐘數(shù)據(jù)到自定義的結構型數(shù)組unsigned char ReadValue;ReadValue = Read1302(DS1302_SECOND);Time->Second = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(

14、DS1302_MINUTE);Time->Minute = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_HOUR);Time->Hour = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_DAY);Time->Day = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F

15、);ReadValue = Read1302(DS1302_WEEK);Time->Week = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MONTH);Time->Month = (ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_YEAR);Time->Year = (ReadValue&0x70)>>4)*1

16、0 + (ReadValue&0x0F);void DateToStr(SYSTEMTIME *Time) /將時間年,月,日,星期數(shù)據(jù)轉換成液晶顯示字符串,放到數(shù)組里DateString if(hide_year<2) /這里的if,else語句都是判斷位閃爍,<2顯示數(shù)據(jù),>2就不顯示,輸出字符串為 2007/07/22 Time->DateString0 = '2' Time->DateString1 = '0' Time->DateString2 = Time->Year/10 + '0'

17、 Time->DateString3 = Time->Year%10 + '0' else Time->DateString0 = ' ' Time->DateString1 = ' ' Time->DateString2 = ' ' Time->DateString3 = ' 'Time->DateString4 = '/'if(hide_month<2) Time->DateString5 = Time->Month/10 + '

18、;0' Time->DateString6 = Time->Month%10 + '0' else Time->DateString5 = ' ' Time->DateString6 = ' ' Time->DateString7 = '/'if(hide_day<2) Time->DateString8 = Time->Day/10 + '0' Time->DateString9 = Time->Day%10 + '0' else

19、 Time->DateString8 = ' ' Time->DateString9 = ' ' if(hide_week<2) week_value0 = Time->Week%10 + '0' /星期的數(shù)據(jù)另外放到 week_value數(shù)組里,跟年,月,日的分開存放,因為等一下要在最后顯示 else week_value0 = ' ' week_value1 = '0'Time->DateString10 = '0' /字符串末尾加 '0' ,判斷結

20、束字符void TimeToStr(SYSTEMTIME *Time) /將時,分,秒數(shù)據(jù)轉換成液晶顯示字符放到數(shù)組 TimeString; if(hide_hour<2) Time->TimeString0 = Time->Hour/10 + '0' Time->TimeString1 = Time->Hour%10 + '0' else Time->TimeString0 = ' ' Time->TimeString1 = ' 'Time->TimeString2 = '

21、:' if(hide_min<2) Time->TimeString3 = Time->Minute/10 + '0' Time->TimeString4 = Time->Minute%10 + '0' else Time->TimeString3 = ' ' Time->TimeString4 = ' ' Time->TimeString5 = ':' if(hide_sec<2) Time->TimeString6 = Time->Sec

22、ond/10 + '0' Time->TimeString7 = Time->Second%10 + '0' else Time->TimeString6 = ' ' Time->TimeString7 = ' ' Time->DateString8 = '0'void Initial_DS1302(void) /時鐘芯片初始化 unsigned char Second=Read1302(DS1302_SECOND);if(Second&0x80) /判斷時鐘芯片是否關閉 Wr

23、ite1302(0x8e,0x00); /寫入允許Write1302(0x8c,0x07); /以下寫入初始化時間 日期:07/07/25.星期: 3. 時間: 23:59:55Write1302(0x88,0x07);Write1302(0x86,0x25);Write1302(0x8a,0x07);Write1302(0x84,0x23);Write1302(0x82,0x59);Write1302(0x80,0x55);Write1302(0x8e,0x80); /禁止寫入/*ds18b20子程序*/*ds18b20延遲子函數(shù)（晶振12MHz ）*/ void delay_18B20(u

24、nsigned int i)while(i-);/*ds18b20初始化函數(shù)*/void Init_DS18B20(void) unsigned char x=0; DQ = 1; /DQ復位 delay_18B20(8); /稍做延時 DQ = 0; /單片機將DQ拉低 delay_18B20(80); /精確延時 大于 480us DQ = 1; /拉高總線 delay_18B20(14); x=DQ; /稍做延時后 如果x=0則初始化成功 x=1則初始化失敗 delay_18B20(20);/*ds18b20讀一個字節(jié)*/ unsigned char ReadOneChar(void)u

25、char i=0;uchar dat = 0;for (i=8;i>0;i-) DQ = 0; / 給脈沖信號 dat>>=1; DQ = 1; / 給脈沖信號 if(DQ) dat|=0x80; delay_18B20(4); return(dat);/*ds18b20寫一個字節(jié)*/ void WriteOneChar(uchar dat) unsigned char i=0; for (i=8; i>0; i-) DQ = 0; DQ = dat&0x01; delay_18B20(5); DQ = 1; dat>>=1; /*讀取ds18b20

26、當前溫度*/void ReadTemp(void)unsigned char a=0;unsigned char b=0;unsigned char t=0;Init_DS18B20();WriteOneChar(0xCC); / 跳過讀序號列號的操作WriteOneChar(0x44); / 啟動溫度轉換delay_18B20(100); / this message is wery importantInit_DS18B20();WriteOneChar(0xCC); /跳過讀序號列號的操作WriteOneChar(0xBE); /讀取溫度寄存器等（共可讀9個寄存器） 前兩個就是溫度del

27、ay_18B20(100);a=ReadOneChar(); /讀取溫度值低位b=ReadOneChar(); /讀取溫度值高位temp_value=b<<4;temp_value+=(a&0xf0)>>4; void temp_to_str() /溫度數(shù)據(jù)轉換成液晶字符顯示 TempBuffer0=temp_value/10+'0' /十位 88888888888888888888888888888888 TempBuffer1=temp_value%10+'0' /個位 TempBuffer2=0xdf; /溫度符號 Temp

28、Buffer3='C' TempBuffer4='0'void Delay1ms(unsigned int count)unsigned int i,j;for(i=0;i<count;i+)for(j=0;j<120;j+);/*延時子程序*/void mdelay(uint delay)uint i; for(;delay>0;delay-) for(i=0;i<62;i+) /1ms延時. ; void outkey() /跳出調整模式,返回默認顯示 uchar Second; if(out=0|wireless_1=1) mdel

29、ay(8); count=0;hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;Second=Read1302(DS1302_SECOND); Write1302(0x8e,0x00); /寫入允許Write1302(0x80,Second&0x7f);Write1302(0x8E,0x80); /禁止寫入done=0; while(out=0);while(wireless_1=1); /void Upkey()/升序按鍵 Up=1;if(Up=0|wireless_2=

30、1) mdelay(8); switch(count) case 1: temp=Read1302(DS1302_SECOND); /讀取秒數(shù) temp=temp+1; /秒數(shù)加1 up_flag=1; /數(shù)據(jù)調整后更新標志 if(temp&0x7f)>0x59) /超過59秒,清零 temp=0; break; case 2: temp=Read1302(DS1302_MINUTE); /讀取分數(shù) temp=temp+1; /分數(shù)加1 up_flag=1; if(temp>0x59) /超過59分,清零 temp=0; break; case 3: temp=Read13

31、02(DS1302_HOUR); /讀取小時數(shù) temp=temp+1; /小時數(shù)加1 up_flag=1; if(temp>0x23) /超過23小時,清零 temp=0; break; case 4: temp=Read1302(DS1302_WEEK); /讀取星期數(shù) temp=temp+1; /星期數(shù)加1 up_flag=1; if(temp>0x7) temp=1; break; case 5: temp=Read1302(DS1302_DAY); /讀取日數(shù) temp=temp+1; /日數(shù)加1 up_flag=1; if(temp>0x31) temp=1; b

32、reak; case 6: temp=Read1302(DS1302_MONTH); /讀取月數(shù) temp=temp+1; /月數(shù)加1 up_flag=1; if(temp>0x12) temp=1; break; case 7: temp=Read1302(DS1302_YEAR); /讀取年數(shù) temp=temp+1; /年數(shù)加1 up_flag=1; if(temp>0x85) temp=0; break; default:break; while(Up=0); while(wireless_2=1); /void Downkey()/降序按鍵 Down=1; if(Down

33、=0|wireless_3=1) mdelay(8); switch(count) case 1: temp=Read1302(DS1302_SECOND); /讀取秒數(shù) temp=temp-1; /秒數(shù)減1 down_flag=1; /數(shù)據(jù)調整后更新標志 if(temp=0x7f) /小于0秒,返回59秒 temp=0x59; break; case 2: temp=Read1302(DS1302_MINUTE); /讀取分數(shù) temp=temp-1; /分數(shù)減1 down_flag=1; if(temp=-1) temp=0x59; /小于0秒,返回59秒 break; case 3: t

34、emp=Read1302(DS1302_HOUR); /讀取小時數(shù) temp=temp-1; /小時數(shù)減1 down_flag=1; if(temp=-1) temp=0x23; break; case 4: temp=Read1302(DS1302_WEEK); /讀取星期數(shù) temp=temp-1; /星期數(shù)減1 down_flag=1; if(temp=0) temp=0x7; break; case 5: temp=Read1302(DS1302_DAY); /讀取日數(shù) temp=temp-1; /日數(shù)減1 down_flag=1; if(temp=0) temp=31; break;

35、 case 6: temp=Read1302(DS1302_MONTH); /讀取月數(shù) temp=temp-1; /月數(shù)減1 down_flag=1; if(temp=0) temp=12; break; case 7: temp=Read1302(DS1302_YEAR); /讀取年數(shù) temp=temp-1; /年數(shù)減1 down_flag=1; if(temp=-1) temp=0x85; break; default:break; while(Down=0); while(wireless_3=1); void Setkey()/模式選擇按鍵Set=1;if(Set=0|wireles

36、s_4=1) mdelay(8); count=count+1; /Setkey按一次,count就加1 done=1; /進入調整模式 while(Set=0); while(wireless_4=1); void keydone()/按鍵功能執(zhí)行 uchar Second; if(flag=0) /關閉時鐘,停止計時 Write1302(0x8e,0x00); /寫入允許 temp=Read1302(0x80); Write1302(0x80,temp|0x80); Write1302(0x8e,0x80); /禁止寫入 flag=1; Setkey(); /掃描模式切換按鍵 switch

37、(count) case 1:do /count=1,調整秒 outkey(); /掃描跳出按鈕 Upkey(); /掃描加按鈕 Downkey(); /掃描減按鈕 if(up_flag=1|down_flag=1) /數(shù)據(jù)更新，重新寫入新的數(shù)據(jù) Write1302(0x8e,0x00); /寫入允許 Write1302(0x80,temp|0x80); /寫入新的秒數(shù) Write1302(0x8e,0x80); /禁止寫入 up_flag=0; down_flag=0; hide_sec+; /位閃計數(shù) if(hide_sec>3) hide_sec=0; show_time(); /

38、液晶顯示數(shù)據(jù) while(count=2);break; case 2:do /count=2,調整分 hide_sec=0; outkey(); Upkey(); Downkey(); if(temp>0x60) temp=0; if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /寫入允許 Write1302(0x82,temp); /寫入新的分數(shù) Write1302(0x8e,0x80); /禁止寫入 up_flag=0; down_flag=0; hide_min+; if(hide_min>3) hide_min=0; show

39、_time(); while(count=3);break; case 3:do /count=3,調整小時 hide_min=0; outkey(); Upkey(); Downkey(); if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /寫入允許 Write1302(0x84,temp); /寫入新的小時數(shù) Write1302(0x8e,0x80); /禁止寫入 up_flag=0; down_flag=0; hide_hour+; if(hide_hour>3) hide_hour=0; show_time(); while(count=4);break; case 4:do /count=4,調整星期 hide_hour=0; outkey(); Upkey(); Downkey(); if(up_flag=1|down_flag=1) Write1302(0x8e,0x00); /寫入允許 Write1302(0x8a,temp); /寫入新的星期數(shù) Write1302(0x8e,0x80); /禁止寫入 up_flag=0; down_flag=0; hide_week+; if(hide_week>3) hide_week=0; show_time(); while