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Ds1307 based digital clock

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internetuser2k12 said:
When in settings mode each parameter inc or dec independently. So incrementing month from 12 to 1 does not increment year in settings mode.

Check this file

------------------------Update--------------------

OK. There was a mistake in year dec. I had used = instead of ==. I have fixed it. Check the fixed file.
Click to expand...

yet there are some problems with year, in alarm in 'fixed.rar' , when year is decremented it goes suddenly to 2019 and then never go below it
in 'v14.rar' month goes to 14 sometimes
 

Just delete all the files I sent and use the one I am sending now. See the simulation. I don't see the problem you mention. Alarm Year increments and decrements properly.
 

Attachments

  • PIC16F877A DS1307 RTC Hafiz Imran fixed2.rar
    20.5 KB · Views: 111
  • rtc sim 2.rar
    14.7 KB · Views: 94
I can see that problem. I am posting the whole project files. Ask somebody if they can fix the alarm problem. Actually I have used decimal counters for alarm and the alarm variables like aday, etc., store normal decimal values. Time setting variables like sday, etc., also store decimal variables but it is converted to hex values. I have attached an image and circled the time window of Proteus. even though it shows proper value on LCD, it shows some strange values in the circled windows of Proteus.

I will also try if I can fix the problem.
 

Attachments

  • PIC16F877 DS1307 RTC Hafiz Imran v20.rar
    104 KB · Views: 88
  • ds1307 rtc 1.jpg
    ds1307 rtc 1.jpg
    324.2 KB · Views: 113
internetuser2k12 said:
I can see that problem. I am posting the whole project files. Ask somebody if they can fix the alarm problem. Actually I have used decimal counters for alarm and the alarm variables like aday, etc., store normal decimal values. Time setting variables like sday, etc., also store decimal variables but it is converted to hex values. I have attached an image and circled the time window of Proteus. even though it shows proper value on LCD, it shows some strange values in the circled windows of Proteus.

I will also try if I can fix the problem.
Click to expand...

ok, i will try ,,, now alarm input appears but doesn't stop

- - - Updated - - -

internetuser2k12 said:
I can see that problem. I am posting the whole project files. Ask somebody if they can fix the alarm problem. Actually I have used decimal counters for alarm and the alarm variables like aday, etc., store normal decimal values. Time setting variables like sday, etc., also store decimal variables but it is converted to hex values. I have attached an image and circled the time window of Proteus. even though it shows proper value on LCD, it shows some strange values in the circled windows of Proteus.

I will also try if I can fix the problem.
Click to expand...

please send me mikroc pro code for "PIC16F877A DS1307 RTC Hafiz Imran v13"
 

What do you mean by alarm input appears but doesn't stop? I don't have the code for v13 file. I don't keep old codes. The code I sent you last is the code I am having. I told you the code in v13 was wrong and I completely changed the code of inc and dec buttons.

Try to use Dec2BCD and Dec2BCD16 functions in mikroC to solve the problem.

download the attachment. I have changed the code so that when you enter the set mode, it will be showing current time.
 

Attachments

  • PIC16F877 DS1307 RTC Hafiz Imran v21.rar
    104.7 KB · Views: 106
Last edited:
internetuser2k12 said:
Why are you saying thanks. It is still not working fine. I mean the alarm. You can try the code here http://www.mikroe.com/forum/viewtopic.php?t=15813

The code in that link is working fine. You have to make a proteus circuit for that code.

The cod ein this link is for ds1307 with buttons http://www.mikroe.com/forum/viewtopic.php?p=84795 he has used dec2bcd

It also has blinking cursor.
Click to expand...


oh that would be amazing,,, thanks a lot for the effort you have done dear
 

I will try to make my code work, but I need some time.

Check this simulation. If you just set hour and minute for alarm, the alarm is working.

Do you want to set alarm for a certain dd/mm/yy hh/mm?

Code: 
#ifndef DS1307
        #define DS1307 0xD0
#endif

#define SET RA0_bit
#define INC RA1_bit
#define DEC RA2_bit
#define OK RA3_bit

// LCD module connections
sbit LCD_RS at RB2_bit;
sbit LCD_EN at RB3_bit;
sbit LCD_D4 at RB4_bit;
sbit LCD_D5 at RB5_bit;
sbit LCD_D6 at RB6_bit;
sbit LCD_D7 at RB7_bit;

sbit LCD_RS_Direction at TRISB2_bit;
sbit LCD_EN_Direction at TRISB3_bit;
sbit LCD_D4_Direction at TRISB4_bit;
sbit LCD_D5_Direction at TRISB5_bit;
sbit LCD_D6_Direction at TRISB6_bit;
sbit LCD_D7_Direction at TRISB7_bit;
// End LCD module connections

unsigned char num, flag, set_time_flag;
char b, x, i, sec, min1, hr, week_day, day, mn, year;
char *txt, tnum[4], time_format[3], sihr[17];
char colon[] = ":";
int cnt, ihr, error, am_pm = 0;
bit set_flag, inc_flag, dec_flag, ok_flag, do_once_hr, do_once_min, do_once_sec, do_once_day, do_once_mn, do_once_year;
bit dec_do_once_hr, dec_do_once_min, dec_do_once_sec, dec_do_once_day, dec_do_once_mn, dec_do_once_year;
bit inc_do_once_hr, inc_do_once_min, inc_do_once_sec, inc_do_once_day, inc_do_once_mn, inc_do_once_year;
bit alarm_flag, alarm_set_flag;
unsigned char set_cnt, inc_cnt, dec_cnt = 0;
unsigned char ssec, smin, shr, sweek_day, sday, smn, syear;
unsigned char asec, amin, ahr, aweek_day, aday, amn, ayear;


void Zero_Fill(char *value) {
        if (value[1] == 0) {
                value[1] = value[0];
                value[0] = 48;
                value[2] = 0;
        }
}

void Write_Time() {
        I2C1_Start();          // issue start signal
        I2C1_Wr(DS1307);       // address DS1307
        I2C1_Wr(0);            // start from word at address (REG0)
        I2C1_Wr(0x80);         // write $80 to REG0. (pause counter + 0 sec)
        I2C1_Wr(smin);         // write 11 to minutes word to (REG1)
        I2C1_Wr(shr);          // write 17 to hours word (24-hours mode)(REG2)
        I2C1_Wr(sweek_day);    // write 6 - Friday (REG3)
        I2C1_Wr(sday);         // write 23 to date word (REG4)
        I2C1_Wr(smn);          // write 11 (Nov) to month word (REG5)
        I2C1_Wr(syear);        // write 12 to year word (REG6)
        I2C1_Stop();           // issue stop signal

        I2C1_Start();          // issue start signal
        I2C1_Wr(DS1307);       // address DS1307
        I2C1_Wr(0);            // start from word at address 0
        I2C1_Wr(0);            // write 0 to REG0 (enable counting + 0 sec)
        I2C1_Stop();           // issue stop signal
}

void Read_Time(char *sec, char *min, char *hr, char *week_day, char *day, char *mn, char *year) {
        I2C1_Start();
        I2C1_Wr(DS1307);
        I2C1_Wr(0);
        I2C1_Repeated_Start();
        I2C1_Wr(0xD1);
        *sec = I2C1_Rd(1);
        *min = I2C1_Rd(1);
        *hr = I2C1_Rd(1);
        *week_day = I2C1_Rd(1);
        *day = I2C1_Rd(1);
        *mn = I2C1_Rd(1);
        *year = I2C1_Rd(0);
        I2C1_Stop();

        I2C1_Start();
        I2C1_Wr(DS1307);
        I2C1_Wr(0);
        I2C1_Repeated_Start();
        I2C1_Wr(0xD1);
        ssec =I2C1_Rd(1);
        smin =I2C1_Rd(1);
        shr =I2C1_Rd(1);
        sweek_day =I2C1_Rd(1);
        sday =I2C1_Rd(1);
        smn =I2C1_Rd(1);
        syear =I2C1_Rd(0);
        I2C1_Stop();

}

void Transform_Time(char  *sec, char *min, char *hr, char *week_day, char *day, char *mn, char *year) {
        *sec  =  ((*sec & 0x70) >> 4)*10 + (*sec & 0x0F);
        *min  =  ((*min & 0xF0) >> 4)*10 + (*min & 0x0F);
        *hr   =  ((*hr & 0x30) >> 4)*10 + (*hr & 0x0F);
        *week_day =(*week_day & 0x07);
        *day  =  ((*day & 0xF0) >> 4)*10 + (*day & 0x0F);
        *mn   =  ((*mn & 0x10) >> 4)*10 + (*mn & 0x0F);
        *year =  ((*year & 0xF0)>>4)*10+(*year & 0x0F);
}

void Display_Time(char sec, char min, char hr, char week_day, char day, char mn, char year) {
        if(alarm_flag == 0) {
        switch(week_day){
                case 1: txt="Sun"; break;
                case 2: txt="Mon"; break;
                case 3: txt="Tue"; break;
                case 4: txt="Wed"; break;
                case 5: txt="Thu"; break;
                case 6: txt="Fri"; break;
                case 7: txt="Sat"; break;
        }
        Lcd_Out(1,1,txt);
        Lcd_Chr(1,5,(day / 10)   + 48);    // Print tens digit of day variable
        Lcd_Chr(1,6, (day % 10)   + 48);    // Print oness digit of day variable
        Lcd_Chr(1,7,'/');
        Lcd_Chr(1,8,(mn / 10) + 48);
        Lcd_Chr(1,9,(mn % 10) + 48);
        Lcd_Chr(1,10,'/');
        Lcd_Out(1,11,"2");
        Lcd_Out(1,12,"0");
        Lcd_Chr(1,13, (year / 10)  + 48);          // Print year vaiable + 8 (start from year 2008)
        Lcd_Chr(1,14, (year % 10)  + 48);

        /*
        if(hr >= 12) {
           Lcd_Out(2,2,"PM");
           am_pm = 1;
        }
        else if(hr < 12) {
           Lcd_Out(2,2,"AM");
           am_pm = 0;
        }
        */

        Lcd_Chr(2,5,(hr / 10)  + 48);
        Lcd_Chr(2,6,(hr % 10)  + 48);
        Lcd_Out(2,7,":");
        Lcd_Chr(2,8,(min / 10) + 48);
        Lcd_Chr(2,9,(min % 10) + 48);
        Lcd_Out(2,10,":");
        Lcd_Chr(2,11,(sec / 10) + 48);
        Lcd_Chr(2,12,(sec % 10) + 48);
        }
}

void Display_Alarm_Time(char asec, char amin, char ahr, char aweek_day, char aday, char amn, char ayear) {
        if(alarm_flag == 1) {
              Lcd_Out(1,1,"ALR");
              Lcd_Chr(1,5,(aday / 10)   + 48);    // Print tens digit of day variable
              Lcd_Chr(1,6, (aday % 10)   + 48);    // Print oness digit of day variable
              Lcd_Chr(1,7,'/');
              Lcd_Chr(1,8,(amn / 10) + 48);
              Lcd_Chr(1,9,(amn % 10) + 48);
              Lcd_Chr(1,10,'/');
              Lcd_Out(1,11,"2");
              Lcd_Out(1,12,"0");
              Lcd_Chr(1,13, (ayear / 10)  + 48);          // Print year vaiable + 8 (start from year 2008)
              Lcd_Chr(1,14, (ayear % 10)  + 48);
              Lcd_Chr(2,5,(ahr / 10)  + 48);
              Lcd_Chr(2,6,(ahr % 10)  + 48);
              Lcd_Out(2,7,":");
              Lcd_Chr(2,8,(amin / 10) + 48);
              Lcd_Chr(2,9,(amin % 10) + 48);
              Lcd_Out(2,10,":");
              Lcd_Chr(2,11,(asec / 10) + 48);
              Lcd_Chr(2,12,(asec % 10) + 48);
        }
}


void main() {

     TRISA = 0b00001111;
     PORTA = 0b00000000;
     TRISB = 0b00000000;
     PORTB = 0b00000000;
     ADCON0 = 0b00000000;
     ADCON1 = 0b10000111;

     Lcd_Init();
     Lcd_Cmd(_LCD_CLEAR);
     Lcd_Cmd(_LCD_CURSOR_OFF);
     Lcd_Out(1,4,"RTC DS1307");
     Delay_ms(3000);
     I2C1_Init(100000);
     Lcd_Cmd(_LCD_CLEAR);

     set_time_flag = 0;
     ok_flag = 1;
     alarm_flag = 0;
     alarm_set_flag = 0;
     ssec = 0x00;
     smin = 0x00;
     shr = 0x00;
     sweek_day = 0x01;
     sday = 0x00;
     smn = 0x00;
     syear = 0x00;
     asec = 0x00;
     amin = 0x00;
     ahr = 0x00;
     aday = 0x00;
     amn = 0x00;
     ayear = 0x00;
     
     Uart1_Init(9600);
     
     while(1) {
     
         if(set_time_flag == 1) {
                Write_Time();
                ok_flag = 0;
                Read_Time(&sec,&min1,&hr,&week_day,&day,&mn,&year);
         }
         
         if((SET == 1) && (INC == 0) && (DEC == 0) &&(OK == 0)) {
               Delay_ms(100);
               if((SET == 1) && (INC == 0) && (DEC == 0) && (OK == 0)) {
                       set_flag = 1;
                       set_time_flag = 1;
                       set_cnt++;
                       if(set_cnt > 11) {
                                  set_cnt = 1;
                                  alarm_flag = 0;
                       }
                       else if(set_cnt == 7) alarm_flag = 1;
               }
         }
         else if((INC == 1) && (DEC == 0) && (SET == 0) && (OK == 0) && (set_flag == 1)) {
                    Delay_ms(100);
                    if((INC == 1) && (DEC == 0) && (SET == 0) && (OK == 0) && (set_flag == 1)) {
                            inc_flag = 1;
                            if(alarm_flag == 0) {
                            switch(set_cnt) {
                               case 0:
                                    break;
                               case 1:
                                    sweek_day++;
                                    if(sweek_day > 7) sweek_day = 1;
                                    break;
                               case 2:
                                    sday++;
                                    if((sday == 16) || (sday == 32)) {
                                        sday = sday + 6;
                                    }
                                    else if(sday > 43) {
                                            sday = 1;
                                    }
                                    break;
                               case 3:
                                    smn++;
                                    if(smn > 12) smn = 1;
                                    break;
                               case 4:
                                    syear++;
                                    if((syear == 16) || (syear == 32) || (syear == 48) || (syear == 64) || (syear == 80) || (syear == 96)
                                              || (syear == 112) || (syear == 128) || (syear == 144)) {
                                        syear = syear + 6;
                                    }
                                    if(syear > 153) {
                                             syear = 0;
                                    }
                                    break;
                               case 5:
                                    shr++;
                                    if(shr == 16) {
                                        shr = shr + 6;
                                    }
                                    if(shr > 29) {
                                           shr = 0;
                                    }
                                    break;
                               case 6:
                                    smin++;
                                    if((smin == 16) || (smin == 32) || (smin == 48) || (smin == 64) || (smin == 80)) {
                                        smin = smin + 6;
                                    }
                                    if(smin > 89) {
                                            smin = 0;
                                    }
                                    break;
                               default:
                                     break;

                            };
                            }
                            else if(alarm_flag == 1) {
                                  switch(set_cnt) {
                               case 7:
                                    aday++;
                                    if(aday > 31) aday = 1;
                                    break;;
                               case 8:
                                    amn++;
                                    if(amn > 12) amn = 1;
                                    break;
                               case 9:
                                    ayear++;
                                    if(ayear > 99) ayear = 0;
                                    break;
                               case 10:
                                    ahr++;
                                    if(ahr > 23) ahr = 0;
                                    break;
                               case 11:
                                    amin++;
                                    if(amin > 59) amin = 0;
                                    break;
                               default:
                                     break;
                            };
                            }
                    }
         }
         else if((DEC == 1) && (SET == 0) && (INC == 0) && (OK == 0) && (set_flag == 1)) {
                    Delay_ms(100);
                    if((DEC == 1) && (SET == 0) && (INC == 0) && (OK == 0) && (set_flag == 1)) {
                            dec_flag = 1;
                            if(alarm_flag == 0) {
                            switch(set_cnt) {
                               case 0:
                                    break;
                               case 1:
                                    sweek_day--;
                                    if(sweek_day < 1) sweek_day = 7;
                                    break;
                               case 2:
                                    sday--;
                                    if(sday > 43) sday = 43;
                                    if((sday == 31) || (sday == 15)) {
                                         sday = sday - 6;
                                    }
                                    break;
                               case 3:
                                    smn--;
                                    if(smn > 12) smn = 12;
                                    if(smn < 1) smn = 12;
                                    break;
                               case 4:
                                    syear--;
                                    if(syear > 153) {
                                             syear = 153;
                                    }
                                    if((syear == 143) || (syear == 127) || (syear == 111) || (syear == 95) || (syear == 79) || (syear == 63)
                                              || (syear == 47) || (syear == 47) || (syear == 31) || (syear == 15)) {
                                         syear = syear - 6;
                                    }
                                    break;
                               case 5:
                                    shr--;
                                    if(shr > 29) {
                                           shr = 29;
                                    }
                                    if(shr == 15) {
                                         shr = shr - 6;
                                    }
                                    break;
                               case 6:
                                    smin--;
                                    if(smin > 89) {
                                            smin = 89;
                                    }
                                    if((smin == 79) && (smin == 63) && (smin == 47) || (smin == 31) || (smin == 15)) {
                                         smin = smin - 6;
                                    }
                                    break;
                               default:
                                     break;

                            };
                            }
                            else if(alarm_flag == 1) {
                                 switch(set_cnt) {
                                  case 7:
                                    aday--;
                                    if(aday > 31) aday = 31;
                                    if(aday < 1) aday = 31;
                                    break;
                               case 8:
                                    amn--;
                                    if(amn > 12) amn = 12;
                                    if(amn < 1) amn = 12;
                                    break;
                               case 9:
                                    ayear--;
                                    if(ayear > 99) ayear = 99;
                                    if(ayear < 0) ayear = 99;
                                    break;
                               case 10:
                                    ahr--;
                                    if(ahr > 23) ahr = 23;
                                    if(ahr < 0) ahr = 23;
                                    break;
                               case 11:
                                    amin--;
                                    if(amin > 59) amin = 59;
                                    if(amin < 0) amin = 59;
                                    break;
                               default:
                                     break;
                            };
                            }
                    }
         }
         else if((OK == 1) && (SET == 0) && (INC == 0) && (DEC == 0) && (set_flag == 1)) {
              Delay_ms(100);
              if((OK == 1) && (SET == 0) && (INC == 0) && (DEC == 0) && (set_flag == 1)) {
              set_flag = 0;
              set_time_flag = 0;
              ok_flag = 1;
              alarm_flag = 0;
              alarm_set_flag = 1;
              set_cnt = 0;
              }
         }
         
         if(ok_flag == 1) {
                Read_Time(&sec,&min1,&hr,&week_day,&day,&mn,&year);
         }
         
         if(alarm_flag == 0) {
                 Transform_Time(&sec,&min1,&hr,&week_day,&day,&mn,&year);
                 Display_Time(sec, min1, hr, week_day, day, mn, year);
                 if(alarm_set_flag == 1) {
                          //if((day == aday) && (mn == amn) && (year == ayear) && (hr == ahr) && (min1 == amin)) {
                                 //PORTB.F0 = 1;
                          //}
                          if((hr == ahr) && (min1 == amin)) {
                                 PORTB.F0 = 1;
                          }
                 }
         }

         if(alarm_flag == 1) {
                Display_Alarm_Time(asec, amin, ahr, aweek_day, aday, amn, ayear);
         }

     }
}
 

Attachments

  • PIC16F877 DS1307 RTC Hafiz Imran alarm.rar
    103.9 KB · Views: 81
Last edited:
This is a summary of this thread

hafizimran18 said:
i am working on a semester project "digital clock"
i have found a lot of circuits from different websites, but no one is working exactly.
Click to expand...

hafizimran18 said:
i have only 7 days to sumbit my project and i am unable to do it, please somebody give me simulation on proteus 6.9 and code
Click to expand...

hafizimran18 said:
i have both mikroc and mikroc pro, but i don't have much time ,, i am also about spoon feeding ,,, please do something for me
Click to expand...



internetuser2k12 said:
Your clock is ready here. https://www.edaboard.com/threads/272756/#post1169737
Click to expand...

A great learning experience but for a different person than the original poster.
 
@ alexan_e

Yes, You are right alexan_e. I learnt a lot about BCD.

OK. I modified the code a little. Now you can start the settings from current time.
 

Attachments

  • PIC16F877 DS1307 RTC v31.rar
    107.6 KB · Views: 94
Hello,
Kindly can someone help to set the time and date using a keypad in mikroC
Pls............................
 

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