51单片机时钟电路（LCD1602显示）完整源码与仿真

#include <REG51.H> #include <intrins.h> //#include "LCD1602.h" //#include "DS1302.h" #define uint unsigned int #define uchar unsigned char sbit DS1302_CLK = P1^7; //实时时钟时钟线引脚 sbit DS1302_IO = P1^6; //实时时钟数据线引脚 sbit DS1302_RST = P1^5; /* //实时时钟复位线引脚 sbit wireless_1 = P3^0; sbit wireless_2 = P3^1; sbit wireless_3 = P3^2; sbit wireless_4 = P3^3; */ sbit ACC0 = ACC^0; sbit ACC7 = ACC^7; 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 = P3^0; //模式切换键 sbit Up = P3^1; //加法按钮 sbit Down = P3^2; //减法按钮 sbit out = P3^3; //立刻跳出调整模式按钮 sbit DQ = P1^0; //温度传送数据IO口 char done,count,temp,flag,up_flag,down_flag; // uchar temp_value; //温度值 uchar TempBuffer[5],week_value[2]; // void show_time(); //液晶显示程序 /***********1602液晶显示部分子程序****************/ //Port Definitions********************************************************** sbit LcdRs = P2^5; sbit LcdRw = P2^6; sbit LcdEn = P2^7; sfr DBPort = 0x80; //P0=0x80,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_COMMAND 0 // Command #define LCD_DATA 1 // Data #define LCD_CLEAR_SCREEN 0x01 // 清屏 #define LCD_HOMING 0x02 // 光标返回原点 void LCD_Write(bit style, unsigned char 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_SHOW 0x04 //显示开 #define LCD_HIDE 0x00 //显示关 #define LCD_CURSOR 0x02 //显示光标 #define LCD_NO_CURSOR 0x00 //无光标 #define LCD_FLASH 0x01 //光标闪动 #define LCD_NO_FLASH 0x00 //光标不闪动 void LCD_SetDisplay(unsigned char DisplayMode) { LCD_Write(LCD_COMMAND, 0x08|DisplayMode); } //设置输入模式************************************************************ #define LCD_AC_UP 0x02 #define LCD_AC_DOWN 0x00 // default #define LCD_MOVE 0x01 // 画面可平移 #define LCD_NO_MOVE 0x00 //default void 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); //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_Write(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')//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; unsigned char Month; unsigned char Year; unsigned char DateString[11]; unsigned char TimeString[9]; }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_SECOND 0x80 //时钟芯片的寄存器位置,存放时间 #define DS1302_MINUTE 0x82 #define DS1302_HOUR 0x84 #define DS1302_WEEK 0x8A #define DS1302_DAY 0x86 #define DS1302_MONTH 0x88 #define DS1302_YEAR 0x8C void 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; i>0; 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; for(i=8; i>0; 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 DS1302_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->Hour = ((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 + (ReadValue&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_year<2) //这里的if,else语句都是判断位闪烁,<2显示数据,>2就不显示,输出字符串为 2007/07/22 { Time->DateString[0] = '2'; Time->DateString[1] = '0'; Time->DateString[2] = Time->Year/10 + '0'; Time->DateString[3] = Time->Year%10 + '0'; } else { Time->DateString[0] = ' '; Time->DateString[1] = ' '; Time->DateString[2] = ' '; Time->DateString[3] = ' '; } Time->DateString[4] = '/'; if(hide_month<2) { Time->DateString[5] = Time->Month/10 + '0'; Time->DateString[6] = Time->Month%10 + '0'; } else { Time->DateString[5] = ' '; Time->DateString[6] = ' '; } Time->DateString[7] = '/'; if(hide_day<2) { Time->DateString[8] = Time->Day/10 + '0'; Time->DateString[9] = Time->Day%10 + '0'; } else { Time->DateString[8] = ' '; Time->DateString[9] = ' '; } if(hide_week<2) { week_value[0] = Time->Week%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_value[0] = ' '; } week_value[1] = '\0'; Time->DateString[10] = '\0'; //字符串末尾加 '\0' ,判断结束字符 } void TimeToStr(SYSTEMTIME *Time) //将时,分,秒数据转换成液晶显示字符放到数组 TimeString[]; { if(hide_hour<2) { Time->TimeString[0] = Time->Hour/10 + '0'; Time->TimeString[1] = Time->Hour%10 + '0'; } else { Time->TimeString[0] = ' '; Time->TimeString[1] = ' '; } Time->TimeString[2] = ':'; if(hide_min<2) { Time->TimeString[3] = Time->Minute/10 + '0'; Time->TimeString[4] = Time->Minute%10 + '0'; } else