基于DS1302寫的12864LCD時鐘程序

1、word以下是我寫的12864LCD并行口時鐘顯示程序，時鐘用按鍵可調(diào)/*12864.h頭文件*/#ifndef _12864_h#define _12864_h/*包含頭文件*/#include<reg51.h>#include"string.h"#include"DS1302.h"/*定義I/0口*/#define LCD12864_DATA P0sbit LCD12864_E = P27;sbit LCD12864_RW = P25;sbit LCD12864_RS = P26;sbit LCD12864_RET= P20;sbit L

2、CD12864_PSB =P22; /*聲明全局函數(shù)*/void Delay1ms(unsigned int); /聲明延時函數(shù)void BusyChk_12864(void); /聲明忙檢測函數(shù)void WrCom(unsigned char); /聲明寫入命令函數(shù)/unsigned char ReDat(void); /聲明讀數(shù)據(jù)函數(shù)void WrDat(unsigned char); /聲明寫數(shù)據(jù)函數(shù)void LcdInit(void); /12864初始化函數(shù)void SetAddress(unsigned char ,unsigned char); /設(shè)置地址轉(zhuǎn)換void Displ

3、ayString(unsigned char ,unsigned char,unsigned char *p);/行顯示字符void DisplayTime();void DisplayDay();void DisplayWeek();#endif/*12864.c*/#include"12864.h"/* 函 數(shù) 名 : Delay1ms* 函數(shù)功能 : 延時函數(shù)，延時1ms* 輸 入 : c* 輸 出 e : 無* 說 名 : 該函數(shù)是在12MHZ晶振下，12分頻單片機的延時。*/void Delay1ms(unsigned int i) /誤差 0us unsigne

4、d char a;for (i; i>0; i-) for (a=199;a>0;a-) ; /*函數(shù)名字：void BusyChk()函數(shù)功能：12864LCD忙檢測* 輸 入 : 無* 輸 出 : 無*/void BusyChk(void) unsigned int timeout=0; LCD12864_E=0; /E=0 使能關(guān)閉 LCD12864_RS=0; /0 指令；1 數(shù)據(jù) LCD12864_RW=1; /1 讀數(shù)據(jù)；0寫數(shù)據(jù) Delay1ms(50); /延時100ms LCD12864_E=1; /1 開使能，讀數(shù)據(jù) while(LCD12864_DATA &a

5、mp; 0x80) && +timeout);/判斷 1表示內(nèi)部在工作； 0表示正常 LCD12864_E=0; /E=0 使能關(guān)閉/*函數(shù)名字：void WrDat(usnigned char data)函數(shù)功能：寫入數(shù)據(jù)* 輸 入 : data* 輸 出 : 無*/void WrDat(unsigned char bTemp)BusyChk();/忙檢測LCD12864_E=0; /E=0 使能關(guān)閉 LCD12864_RS=1; /0 指令；1 數(shù)據(jù) LCD12864_RW=0; /1 讀數(shù)據(jù)；0寫數(shù)據(jù)LCD12864_E=1; /E=1 使能翻開LCD12864_DATA

6、=bTemp;/寫入數(shù)據(jù)Delay1ms(10); /延時100msLCD12864_E=0; /E=0 使能關(guān)閉/*函數(shù)名字：void WrCom(usnigned char com)函數(shù)功能：寫入命令* 輸 入 : com* 輸 出 : 無*/void WrCom(unsigned char com) BusyChk(); LCD12864_E=0; /E=0 使能關(guān)閉 LCD12864_RS=0; /0 指令；1 數(shù)據(jù) LCD12864_RW=0; /1 讀數(shù)據(jù)；0寫數(shù)據(jù)LCD12864_E=1; /E=0 使能翻開LCD12864_DATA=com;/寫入數(shù)據(jù)Delay1ms(10);

7、 /延時100msLCD12864_E=0; /E=0 使能關(guān)閉/*函數(shù)名字：unsigned char ReData(void)函數(shù)功能：讀數(shù)據(jù)* 輸 入 : 無* 輸 出 : data*/unsigned char ReData(void)/ unsigned char bTempt;/BusyChk();/LCD12864_DATA=0xFF;/ LCD12864_E=0; /E=0 使能關(guān)閉/ LCD12864_RS=1; /0 指令；1 數(shù)據(jù)/ LCD12864_RW=1; /1 讀數(shù)據(jù)；0寫數(shù)據(jù)/LCD12864_E=1; /E=0 使能翻開/bTempt=LCD12864_DAT

8、A;/讀出數(shù)據(jù)/Delay1ms(100); /延時100ms/LCD12864_E=0; /E=0 使能關(guān)閉/return bTempt;/*函數(shù)名字：void LcdInit(void)函數(shù)功能：初始化* 輸 入 : 無* 輸 出 : 無*/void LcdInit() LCD12864_RS=0; /0 指令；1 數(shù)據(jù) LCD12864_RW=0; /1 讀數(shù)據(jù)；0寫數(shù)據(jù) LCD12864_E=1; /E=1 使能翻開 LCD12864_PSB=1;/1為并行模式，0為串行模式 LCD12864_RET=1; Delay1ms(50); LCD12864_RET=0;/低電平復(fù)位 Del

9、ay1ms(300); LCD12864_RET=1;/恢復(fù)高電平 WrCom(0x30); /根本指令用0x30,擴展指令用0x34 Delay1ms(20); WrCom(0x30); WrCom(0x0C); /顯示開，光標關(guān)/ WrCom(0x14); /光標位置右移一個位置 WrCom(0x01); /清屏 WrCom(0x06); /進入模式 指針加1，屏幕不移動 /*函數(shù)名字：void SetAddress(unsigned char x,unsigned char y)函數(shù)功能：初始化* 輸 入 : 行、數(shù)據(jù)* 輸 出 : 無*/void SetAddress(unsigned

10、 char x,unsigned char y) unsigned char bAddress;switch(y)case 1: bAddress=0x80+x;break;case 2: bAddress=0x90+x;break;case 3: bAddress=0x88+x;break;case 4: bAddress=0x98+x;break;default: break;WrCom(bAddress);/*函數(shù)名字：void DisplayString(unsigned char x,unsigned char y, unsigned)函數(shù)功能：初始化* 輸 入 : 行、數(shù)據(jù)* 輸

11、出 : 無*/void DisplayString(unsigned char x,unsigned char y,unsigned char *add) unsigned char i;i=strlen(add);SetAddress(x,y);while(i-) WrDat(*(add+);/*函數(shù)名字：void DisplayTime()函數(shù)功能：顯示時間* 輸 入 : 行、數(shù)據(jù)* 輸 出 : 無*/void DisplayTime() WrCom(0x88); WrDat('0'+(TIME2/10); WrDat('0'+(TIME2%10); Dis

12、playString(1,3,":");WrDat('0'+(TIME1/10);WrDat('0'+(TIME1%10);WrDat(':');WrDat('0'+(TIME0/10);WrDat('0'+(TIME0%10);/*函數(shù)名字：void DisplayDay()函數(shù)功能：顯示時間* 輸 入 : 行、數(shù)據(jù)* 輸 出 : 無*/void DisplayDay() WrCom(0x80);WrDat('0'+2);WrDat('0'+0);WrDat(&

13、#39;0'+(TIME6/10);WrDat('0'+(TIME6%10);DisplayString(2,1,"年");WrDat('0'+(TIME4/10);WrDat('0'+(TIME4%10);DisplayString(4,1,"月");WrDat('0'+(TIME3/10);WrDat('0'+(TIME3%10);DisplayString(6,1,"日");/*函數(shù)名字：void DisplayWeek()函數(shù)功能：顯示時間

14、* 輸 入 : 行、數(shù)據(jù)* 輸 出 : 無*/void DisplayWeek() switch(TIME5) case 1: DisplayString(0,2,"星期:Mo");break; case 2: DisplayString(0,2,"星期:Tu");break; case 3: DisplayString(0,2,"星期:We");break; case 4: DisplayString(0,2,"星期:Th");break; case 5: DisplayString(0,2,"星期:F

15、r");break; case 6: DisplayString(0,2,"星期:Sa");break; case 7: DisplayString(0,2,"星期:Su");break; /*DS1302.h*/#ifndef _DS1302_h#define _DS1302_h/*包含頭文件*/#include<reg51.h>#include<intrins.h>/*定義I/O口*/sbit DSIO=P34;sbit RST= P35;sbit SCLK=P36;/*聲明全局變量*/extern unsigned

16、 char TIME7;/-聲明全局函數(shù)-/void Ds1302Write(unsigned char addr, unsigned char dat);unsigned char Ds1302Read(unsigned char addr);void Ds1302Init();void Ds1302ReadTime();unsigned char changeBCD_Variable(unsigned char );unsigned char changeVariable_BCD(unsigned char );#endif/*DS1302.c*/#include"DS1302.

17、h" /-DS1302寫入和讀取時分秒的地址命令-/-秒分時日月周年 最低位讀寫位;-/unsigned char code READ_RTC_ADDR7 = 0x81, 0x83, 0x85, 0x87, 0x89, 0x8b, 0x8d; unsigned char code WRITE_RTC_ADDR7 = 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c;/* 函 數(shù) 名 : Ds1302Write* 函數(shù)功能 : 向DS1302命令地址+數(shù)據(jù)* 輸 入 : addr,dat* 輸 出 : 無*/void Ds1302Write(unsign

18、ed char addr, unsigned char dat)unsigned char n;RST = 0;_nop_();SCLK = 0;/先將SCLK置低電平。_nop_();RST = 1; /然后將RST(CE)置高電平。_nop_();for (n=0; n<8; n+)/開始傳送八位地址命令DSIO = addr & 0x01;/數(shù)據(jù)從低位開始傳送addr >>= 1;SCLK = 1;/數(shù)據(jù)在上升沿時，DS1302讀取數(shù)據(jù)_nop_();SCLK = 0;_nop_();for (n=0; n<8; n+)/寫入8位數(shù)據(jù)DSIO = dat

19、& 0x01;dat >>= 1;SCLK = 1;/數(shù)據(jù)在上升沿時，DS1302讀取數(shù)據(jù)_nop_();SCLK = 0;_nop_(); RST = 0;/傳送數(shù)據(jù)結(jié)束_nop_();/* 函 數(shù) 名 : Ds1302Read* 函數(shù)功能 : 讀取一個地址的數(shù)據(jù)* 輸 入 : addr* 輸 出 : dat*/unsigned char Ds1302Read(unsigned char addr)unsigned char n,dat,dat1;RST = 0;_nop_();SCLK = 0;/先將SCLK置低電平。_nop_();RST = 1;/然后將RST(CE

20、)置高電平。_nop_();for(n=0; n<8; n+)/開始傳送八位地址命令DSIO = addr & 0x01;/數(shù)據(jù)從低位開始傳送addr >>= 1;SCLK = 1;/數(shù)據(jù)在上升沿時，DS1302讀取數(shù)據(jù)_nop_();SCLK = 0;_nop_();_nop_();for(n=0; n<8; n+)/讀取8位數(shù)據(jù)dat1 = DSIO;/從最低位開始接收dat = (dat>>1) | (dat1<<7);SCLK = 1;_nop_();SCLK = 0;/ _nop_();RST = 0;_nop_();/以下為D

21、S1302復(fù)位的穩(wěn)定時間,必須的。SCLK = 1;_nop_();DSIO = 0;_nop_();DSIO = 1;_nop_();return dat;/* 函 數(shù) 名 : Ds1302Init* 函數(shù)功能 : 初始化DS1302.* 輸 入 : 無* 輸 出 : 無*/void Ds1302Init()unsigned char n;Ds1302Write(0x8E,0X00); /關(guān)閉寫保護功能for (n=0; n<7; n+)/寫入7個字節(jié)的時鐘信號：分秒時日月周年Ds1302Write(WRITE_RTC_ADDRn,TIMEn);Ds1302Write(0x8E,0x8

22、0); /翻開寫保護功能/* 函 數(shù) 名 : Ds1302ReadTime* 函數(shù)功能 : ReadTime* 輸 入 : 無* 輸 出 : 無*/void Ds1302ReadTime()unsigned char n; for (n=0; n<7; n+)/寫入7個字節(jié)的時鐘信號：分秒時日月周年TIMEn=Ds1302Read(READ_RTC_ADDRn);TIMEn=changeBCD_Variable(TIMEn);/*/*BCD碼轉(zhuǎn)換成十進制*/unsigned char changeBCD_Variable(unsigned char data1) unsigned cha

23、r i=0,j=0; i=data1&0xf0; i>>=4; j=data1&0x0f; data1=i*10+j; return data1;/*十進制轉(zhuǎn)換成BCD*/unsigned char changeVariable_BCD(unsigned char data2)unsigned char i=0,j=0;i=data2/10; i<<=4; j=data2%10; data2=i+j;return data2;/*key.h*/#ifndef _Key_h#define _Key_h#include<reg51.h>#incl

24、ude"12864.h"/*定義I/O口*/#define GPIO_KEY P1/*聲明全局變量*/extern unsigned char keyvalue;/*聲明全局函數(shù)*/void KeyDown();unsigned char keycurrent(unsigned char ,int);void toolmode();#endif/*key.c*/#include"Key.h"/* 函 數(shù) 名 : keyvalue* 函數(shù)功能 : 矩陣按鍵值* 輸 入 : 無* 輸 出 : keyvalue*/const char code ValueLi

25、st= /下限 上限 0, 59, /秒 1, 59, /分 1, 12, /時 1, 31, /日 1, 12, /月 1, 7, /周 1, 99 / 年 ;/*矩陣按鍵掃描*/void KeyDown(void)GPIO_KEY=0x0f;if(GPIO_KEY!=0x0f)Delay1ms(3); if(GPIO_KEY!=0x0f) switch(GPIO_KEY) case 0x07: keyvalue=1; break; case 0x0b: keyvalue=2; break; case 0x0d: keyvalue=3; break; case 0x0e: keyvalue=

26、4; break; GPIO_KEY=0xf0; switch(GPIO_KEY) case 0x70: keyvalue=keyvalue;break; case 0xb0: keyvalue+=4; break; case 0xd0: keyvalue+=8; break; case 0xe0: keyvalue+=12;break; while(GPIO_KEY!=0xf0) Delay1ms(3); unsigned char keycurrent(unsigned char value,int i) if(value=2) keyvalue=0; TIMEi+; if(TIMEi&g

27、t;ValueList2*i+1) TIMEi=ValueList2*i; if(value=3) keyvalue=0; TIMEi-; if(TIMEi<=ValueList2*i) TIMEi=ValueList2*i+1; return TIMEi;/*按鍵處理，調(diào)節(jié)時間*/void toolmode(void) unsigned char n; keyvalue=0; WrCom(0x01); /清屏 WrCom(0x02); /復(fù)位 Ds1302ReadTime();/讀ds1302中數(shù)值 / TIME0=0x00; while(1) /年設(shè)置 WrCom(0x80); Wr

28、Dat('2'); WrDat('0'); WrDat('0'+TIME6/10); WrDat('0'+(TIME6%10); DisplayString(2,1,"年"); KeyDown(); /按鍵掃描 keycurrent(keyvalue,6); if(keyvalue=1) keyvalue=0; break; if(keyvalue=4) /進入月設(shè)置 keyvalue=0; break; while(1) /月份設(shè)置 WrCom(0x80+3); WrDat('0'+(TIME

29、4/10); WrDat('0'+(TIME4%10); DisplayString(4,1,"月"); KeyDown(); keycurrent(keyvalue, 4); if(keyvalue=1) keyvalue=0; goto EXIT_toolmode; if(keyvalue=4)/進入日期設(shè)置 keyvalue=0; break; while(1)/日期設(shè)置 WrCom(0x80+5); WrDat('0'+(TIME3/10); WrDat('0'+(TIME3%10); DisplayString(6,

30、1,"日"); KeyDown(); keycurrent(keyvalue, 3); if(keyvalue=1) keyvalue=0; goto EXIT_toolmode; if(keyvalue=4) /進入周設(shè)置 keyvalue=0; break; while(1) /周設(shè)置 DisplayWeek(); KeyDown(); keycurrent(keyvalue,5); if(keyvalue=1) keyvalue=0; goto EXIT_toolmode; if(keyvalue=4)/進入時間設(shè)計 keyvalue=0; break; while(1)/時間設(shè)置 WrCom(0x88); WrDat('0'+(TIME2/1