51单片机+LCD1602+DS1302组成的电子时钟电路包含源代码和Proteus仿真电路

/*基于DS1302和LCD1602的万年历*/ /*具有光标显示，按键调时功能*/ /*作者：田开坤*/ /*key0：模式选择*/ /*key1：减操作*/ /*key2：加操作*/ /*key0：返回*/ /*2007.04.09*/ #include "STC89C51RC.H" #include "LCD1602.h" #include "DS1302.h" #include <absacc.h> #define UP 0xff #define DOWN 0x0 #define uchar unsigned char #define uint unsigned int sbit key3 = P3^5; sbit key2 = P3^4;//Up sbit key1 = P3^3;//Down sbit key0 = P3^2;//Modle //1302调时函数 void data_change(uchar data_name,uchar up_down,uchar max,uchar n) { uchar tmp; uchar tmp1; tmp1 = Read1302(data_name); tmp = ((tmp1>>4)&0x0f)*10 + (tmp1 & 0x0f); if (up_down){ if(tmp < max){ tmp+=n; tmp1=(((tmp/10)<<4) | (tmp%10)); Write1302(data_name,tmp1); } } else{ if(tmp >= n){ tmp-=n; tmp1=(((tmp/10)<<4) | (tmp%10)); Write1302(data_name,tmp1); } } } main() { uint loop_count=0; uint key0_count=0; uint key1_count=0; uint key2_count=0; uchar modle_flag=0; uchar cursor_line=2; uchar cursor_conumn=10; uchar nset_time=1; SYSTEMTIME CurrentTime; Initial_DS1302(); LCD_Init(); LCD_SET_CURSOR(1,1); Print("Date:",5); LCD_SET_CURSOR(2,1); Print("Time:",5); while(1){ if(loop_count++>10000){ DS1302_GetTime(&CurrentTime); DateToStr(&CurrentTime); TimeToStr(&CurrentTime); LCD_CURSOR_ONOFF(1);//关闭光标 LCD_SET_CURSOR(1,6); Print(CurrentTime.DateString,8); LCD_SET_CURSOR(2,6); Print(CurrentTime.TimeString,8); loop_count = 0; if(nset_time) LCD_CURSOR_ONOFF(1); else{ LCD_CURSOR_ONOFF(2);//显示光标 LCD_SET_CURSOR(cursor_line,cursor_conumn); } } if(key0==0) { if(key0_count++>25000) { nset_time = 0; modle_flag++; switch(modle_flag) { case 1: cursor_line = 2; cursor_conumn = 10; break; case 2: cursor_line = 2; cursor_conumn = 9; break; case 3: cursor_line = 2; cursor_conumn = 7; break; case 4: cursor_line = 2; cursor_conumn = 6; break; case 5: cursor_line = 1; cursor_conumn = 13; break; case 6: cursor_line = 1; cursor_conumn = 12; break; case 7: cursor_line = 1; cursor_conumn = 10; break; case 8: cursor_line = 1; cursor_conumn = 9; break; case 9: cursor_line = 1; cursor_conumn = 7; break; case 10: cursor_line = 1; cursor_conumn = 6; break; default: modle_flag=0; nset_time = 1; break; } key0_count=0; } } if(key1==0) { if(key1_count++>20000){ switch(modle_flag){ case 1: data_change(DS1302_MINUTE,DOWN,59,1); break; case 2: data_change(DS1302_MINUTE,DOWN,59,10); break; case 3: data_change(DS1302_HOUR,DOWN,23,1); break; case 4: data_change(DS1302_HOUR,DOWN,23,10); break; case 5: data_change(DS1302_DAY,DOWN,30,1); break; case 6: data_change(DS1302_DAY,DOWN,30,10); break; case 7: data_change(DS1302_MONTH,DOWN,11,1); break; case 8: data_change(DS1302_MONTH,DOWN,11,10); break; case 9: data_change(DS1302