1602显示万年历

1、1602显示万年历#include<reg52.h> / 包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include <intrins.h> sbit SCK=P2八7; 时钟sbit SDA=P2八6; 数据sbit RST = P2八5; DS1302 复位sbit RS = P2A0;定义端口sbit RW = P2A1；sbit EN = P2A2;#define RS_CLR RS=0#define RS_SET RS=1#define RW_CLR RW=0#define RW_SET RW=1#define EN_CLR EN=0#de

2、fine EN_SET EN=1 #define DataPort P0bit ReadRTC_Flag;/ 定义读 DS1302标志unsignedcharl_tmpdate7=59,42,22,22,1,2,13;/ 秒分时日月 周年unsigned char l_tmpdisplay18;codeunsignedcharwrite_rtc_address7=0x80,0x82,0x84,0x86,0x88,0x8a,0x8c; /秒分时日月周年 最低位读写位codeunsignedcharread_rtc_address7=0x81,0x83,0x85,0x87,0x89 ,0x8b,0

3、x8d; /读的地址/*/*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 RTCvoid Set_RTC(void); /set RTCvoid InitTIMER0(void);/inital timer0/*uS 延时函数，含有输入参数 unsigned

4、char t ， 无返回值unsigned char 是定义无符号字符变量， 其值的 范围是0255 这里使用晶振 12M ，精确延时请使用汇 编 ,大致延时长度如下 T=tx2+5 uS*/void DelayUs2x(unsigned char t)while(-t);/*mS 延时函数，含有输入参数unsigned char t ，无返回值unsigned char 是定义无符号字符变量， 其值的范围是0255 这里使用晶振 12M ，精确延时请使用汇编*/void DelayMs(unsigned char t)while(t-)/大致延时1mSDelayUs2x(245);Delay

5、Us2x(245);/*判忙函数*/bit LCD_Check_Busy(void)DataPort= 0xFF;RS_CLR;RW_SET;EN_CLR;_nop_();EN_SET;return (bit)(DataPort & 0x80);/*写入命令函数*/void LCD_Write_Com(unsigned char com)while(LCD_Check_Busy(); / 忙则等待RS_CLR;RW_CLR;EN_SET;DataPort= com;_nop_();EN_CLR;/*写入数据函数*/void LCD_Write_Data(unsigned char Da

6、ta)while(LCD_Check_Busy(); / 忙则等待RS_SET;RW_CLR;EN_SET;DataPort= Data;_nop_();EN_CLR;/*清屏函数*/void LCD_Clear(void)LCD_Write_Com(0x01);DelayMs(5);/*写入字符串函数*/charvoid LCD_Write_String(unsignedx,unsigned char y,unsigned char *s)if (y = 0)LCD_Write_Com(0x80 + x);elseLCD_Write_Com(0xC0 + x);while (*s)LCD_W

7、rite_Data( *s);s +;/*写入字符函数void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)if (y = 0)LCD_Write_Com(0x80 + x);elseLCD_Write_Com(0xC0 + x);LCD_Write_Data( Data); */*写入数字函数 字符的地址加 0x30显示数字*/void LCD_Write_num(unsigned charx,unsigned char y,unsigned char num)if (y = 0)LCD_Write_Co

8、m(0x80 + x);elseLCD_Write_Com(0xC0 + x);LCD_Write_Data( 0x30+num);/*初始化函数*/ void LCD_Init(void)LCD_Write_Com(0x38); /* 显示模式设 置*/DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);LCD_Write_Com(0x08);/* 显示关闭*/LCD_Write_Com(0x01);/*显示清屏*/LCD_Write_Com(0x06); /

9、* 显示光标移动设置 */DelayMs(5);LCD_Write_Com(0x0C); /* 显示开及光标设置 */*/*写 一 个 字 节*/ /* */void Write_Ds1302_Byte(unsigned char temp)unsigned char i;for (i=0;i<8;i+)/循环8 次 写入数据SCK=0;SDA=temp&0x01;/每次传输低字节temp>>=1;/右移一位SCK=1;/*/*入 DS1302*/ /* */void Write_Ds1302(address,unsigned char dat )RST=0;_nop

10、_();SCK=0;_nop_();RST=1;unsigned char/启动_nop_();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(a

11、ddress);for (i=0;i<8;i+)/循环8 次 读取数据if(SDA)temp|=0x80;/每次传输低字节SCK=0;temp>>=1;/右移一位_nop_();_nop_();_nop_();SCK=1;RST=0;_nop_();以下为DS1302复位的稳定时间_nop_();RST=0;SCK=0;_nop_();_nop_();_nop_();_nop_();SCK=1;_nop_();_nop_();SDA=0;_nop_();_nop_();SDA=1;_nop_();/返回_nop_();return (temp);/*/*读时钟数据*/*/ v

12、oid Read_RTC(void) unsigned char i,*p;p=read_rtc_address;/读取 日历/地址传递for(i=0;i<7;i+)月周年/分 7 次读取 秒分时日l_tmpdatei=Read_Ds1302(*p);p+;/*/*设定时钟数据*/ /*/设定 日历*/ void Set_RTC(void)unsigned char i,*p,tmp;for(i=0;i<7;i+) /BCD 处理tmp=l_tmpdatei/10;l_tmpdatei=l_tmpdatei%10;l_tmpdatei=l_tmpdatei+tmp*16;Write

13、_Ds1302(0x8E,0X00);p=write_rtc_address; / 传地址 for(i=0;i<7;i+)/7 次写入秒分时日月周年Write_Ds1302(*p,l_tmpdatei); p+;Write_Ds1302(0x8E,0x80);/* */*定时器中断函数*/ /* */ void tim(void) interrupt 1 using 1/中断，用于数码管扫描 static unsigned char num;TH0=0xf5;TL0=0xe0;num+;1302if(10=num)/ 隔段时间读取的数据。时间间隔可以调整ReadRTC_Flag=1; /

14、使用标志位判断 num=0;/*显示部分*/ void displaylcd(void)LCD_Init();LCD_Clear();LCD_Write_num(0,1,l_tmpdisplay0);LCD_Write_num(1,1,l_tmpdisplay1); / 秒LCD_Write_String(2,1,":");LCD_Write_num(3,1,l_tmpdisplay3);LCD_Write_num(4,1,l_tmpdisplay4); /分LCD_Write_String(5,1,":");LCD_Write_num(6,1,l_tm

15、pdisplay6);LCD_Write_num(7,1,l_tmpdisplay7); /时LCD_Write_String(9,0,"w");LCD_Write_String(10,0,"e");LCD_Write_String(11,0,"e");LCD_Write_String(12,0,"k");LCD_Write_String(13,0,":");LCD_Write_num(14,0,l_tmpdisplay8);LCD_Write_num(15,0,l_tmpdisplay9);/

16、 周LCD_Write_String(2,0,"-");LCD_Write_num(3,0,l_tmpdisplay11);/ 日LCD_Write_num(4,0,l_tmpdisplay12);LCD_Write_String(5,0,"-");LCD_Write_num(6,0,l_tmpdisplay16);/ 月LCD_Write_num(7,0,l_tmpdisplay17);LCD_Write_num(0,0,l_tmpdisplay14);/LCD_Write_num(1,0,l_tmpdisplay15); 年l_tmpdisplay0

17、=l_tmpdate2/16;l_tmpdisplay1=l_tmpdate2&0x0f;l_tmpdisplay3=l_tmpdate1/16;l_tmpdisplay4=l_tmpdate1&0x0f;l_tmpdisplay6=l_tmpdate0/16;l_tmpdisplay7=l_tmpdate0&0x0f;l_tmpdisplay8=l_tmpdate5/16;l_tmpdisplay9=l_tmpdate5&0x0f;l_tmpdisplay11=l_tmpdate4/16;l_tmpdisplay12=l_tmpdate4&0x0f;l_tmpdisplay14=l_tmpdate6/16;l_tmpdisplay15=l_tmpdate6&0x0f;l_tmpdisplay16=l_tmpdate3/16;l_tmpdisplay17=l_tmpdate3&0x0f;/*/*定时器 0