in the program below every thing is working fine including settings .the problem i am facing is when i am entering into setting of time rtc is stopped there and once i come back from setting its getting on. for eg if time is 12:15:42 and i am going to setting menu and i ll be there for say 2 mins and once i exit from that without changing any time den rtc ll start again from 12:15:43. if there any problm in code help me.sorry i could not attach file so i am putting my code below
Rich (BB code):
// Lcd module connections
sbit LCD_RS at LATB5_bit;
sbit LCD_EN at LATB4_bit;
sbit LCD_D4 at LATB3_bit;
sbit LCD_D5 at LATB2_bit;
sbit LCD_D6 at LATB1_bit;
sbit LCD_D7 at LATB0_bit;
sbit LCD_RS_Direction at TRISB5_bit;
sbit LCD_EN_Direction at TRISB4_bit;
sbit LCD_D4_Direction at TRISB3_bit;
sbit LCD_D5_Direction at TRISB2_bit;
sbit LCD_D6_Direction at TRISB1_bit;
sbit LCD_D7_Direction at TRISB0_bit;
//End LCD connection*/
sbit Soft_I2C_Scl at RC3_bit;
sbit Soft_I2C_Sda at RC4_bit;
sbit Soft_I2C_Scl_Direction at TRISC3_bit;
sbit Soft_I2C_Sda_Direction at TRISC4_bit;
sbit BUZZER at RB6_bit;
char timeset(); //time
char dateset();//date
char dayset();//day
char hourset();//hour
char minset();//min
char secset();//sec
char dates1();//date
char months1();//month
char years();//year
unsigned char BCD2LowerCh(unsigned char bcd);
unsigned char BCD2UpperCh(unsigned char bcd);
unsigned short read_ds1307(unsigned short address );
void write_ds1307(unsigned short address,unsigned short w_data);
unsigned char temp1, temp ,rr, sec, minute,hour,day, month,year,date,dates11,dater11,mon11,yr11,hour_11,min_11,sec_11,dater_11,mon_11,yr_11,y, sec_1, minute_1,hour_1,day_1, month_1,year_1,date_1;
unsigned char dates, months, hours, minutes,days,b,up,timer11,hour11,time11,min11,sec11,aa1,aa2,aa3,bb,cc,x,sec1,min1,hour1,day1,date1,month1,year1;
char * text = "0";
char * text0 = "00";
char * text1 = "00";
char * text2 = "00";
char * text3 = "00";
char * text4 = "0";
char * text5 = "00";
char days1[] = "SUN";
char days2[] = "MON";
char days3[] = "TUE";
char days4[] = "WED";
char days5[] = "THU";
char days6[] = "FRI";
char days7[] = "SAT";
char timer[9];
char ddater[11];
char pus[3];
sbit set at RA0_bit; //buttons
sbit inc at RA1_bit;
sbit dec at RA2_bit;
sbit set1 at RA3_bit;
void main()
{
x=1;
TRISB.F6=0;
TRISA.F0=1;
TRISA.F1=1;
TRISA.F2=1;
TRISA.F3=1;
ADRESL = 0;
ADRESH = 0; // Configure AN pins as digital I/O
ADCON0=0;
ADCON1 = 0x0F;
ADCON2 =0;
CMCON =7;
PORTA =0;
PORTB =0;
PORTC =0;
BUZZER =0;
/*OSCCON = 0x70;*/
//TRISA= 0;
TRISC=0xFF;
Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
Soft_I2C_Start();
do{
for(rr=0;rr<=2;rr++)
{
Lcd_Cmd(_LCD_CLEAR); // Clear LCD
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1, 1, "TIME:");
Lcd_Out(2, 1, "DATE:");
sec=read_ds1307(0X00); // read second
minute=read_ds1307(0X01); // read minute
hour=read_ds1307(0X02); // read hour
day=read_ds1307(0X03); // read day
date=read_ds1307(0X04); // read date
month=read_ds1307(0X05); // read month
year=read_ds1307(0X06); // read year
sec1=sec;
min1=minute;
hour1=hour;
day1=day;
date1=date;
month1=month;
year1=year;
write_ds1307(0x26,sec);
write_ds1307(0x27,minute);
write_ds1307(0x28,hour);
write_ds1307(0x29,day);
write_ds1307(0x30,date);
write_ds1307(0x2A,month);
write_ds1307(0x2B,year);
timer[0] = BCD2UpperCh(hour);
timer[1] = BCD2LowerCh(hour);
timer[2] = ':';
timer[3] = BCD2UpperCh(minute);
timer[4] = BCD2LowerCh(minute);
timer[5] = ':';
timer[6] = BCD2UpperCh(sec);
timer[7] = BCD2LowerCh(sec);
timer[8] ='\0';
ddater[0] = BCD2UpperCh(date);
ddater[1] = BCD2LowerCh(date);
ddater[2] ='/';
ddater[3] = BCD2UpperCh(month);
ddater[4] = BCD2LowerCh(month);
ddater[5] ='/';
ddater[6] = '2';
ddater[7] = '0';
ddater[8] = BCD2UpperCh(year);
ddater[9] = BCD2LowerCh(year);
ddater[10] = '\0';
Lcd_Out(1,6,timer);
Lcd_Out(2,6,ddater);
if(day ==1)
Lcd_Out(1,14,days1);
if(day ==2)
Lcd_Out(1,14,days2);
if(day ==3)
Lcd_Out(1,14,days3);
if(day ==4)
Lcd_Out(1,14,days4);
if(day ==5)
Lcd_Out(1,14,days5);
if(day ==6)
Lcd_Out(1,14,days6);
if(day ==7)
Lcd_Out(1,14,days7);
delay_ms(1000);
}
//setting part
if(set==0)
{
b=1;
do
{
up=0;
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "1:time 2:date"); delay_ms(500);
lcd_out(2,1, "3:day use sw2");
delay_ms(500);
if(inc ==0)
{ up=1;
for(up=1;up<5;)
{
Lcd_Cmd(_LCD_CLEAR);
switch(up)
{
case 1: lcd_out(1,1, "1:time ");
delay_ms(500);
if(set == 0)
{
x = timeset();
up=4;
}
break;
case 2: lcd_out(1,1, "2:date ");
delay_ms(500);
if(set == 0)
{
x=dateset(); up=4;
}
break;
case 3: lcd_out(1,1, "3:day ");
delay_ms(500);
if(set == 0)
{
x=dayset(); up=4;
}
break;
case 4:
if(x==0)
{
sec_1=read_ds1307(0X00); // read second
minute_1=read_ds1307(0X23); // read minute
hour_1=read_ds1307(0X22); // read hour
day_1=read_ds1307(0X25); // read day
date_1=read_ds1307(0X21); // read date
month_1=read_ds1307(0X20); // read month
year_1=read_ds1307(0X24); // read year
}
else
{
sec_1=read_ds1307(0X26); // read second
minute_1=read_ds1307(0X27); // read minute
hour_1=read_ds1307(0X28); // read hour
day_1=read_ds1307(0X29); // read day
date_1=read_ds1307(0X30); // read date
month_1=read_ds1307(0X2A); // read month
year_1=read_ds1307(0X2B); // read year
}
write_ds1307(0x00,sec_1);
write_ds1307(0x01,minute_1);
write_ds1307(0x02,hour_1);
write_ds1307(0x03,day_1);
write_ds1307(0x04,date_1);
write_ds1307(0x05,month_1);
write_ds1307(0x06,year_1);
up=5;
break;
}
if(inc == 0)
up++;
b=0;
}
}
}while(b == 1);
}
}while(1); //
}
unsigned short read_ds1307(unsigned short address )
{
int dat;
soft_I2C_Start();
soft_I2C_Write(0xd0); //address 0x68 followed by direction bit (0 for write, 1 for read) 0x68 followed by 0 --> 0xD0
soft_I2C_Write(address);
soft_I2C_Start();
soft_I2C_Write(0xd1); //0x68 followed by 1 --> 0xD1
dat=soft_I2C_Read(0);
soft_I2C_Stop();
return(dat);
}
unsigned char BCD2UpperCh(unsigned char bcd)
{
return ((bcd >> 4) + '0');
}
unsigned char BCD2LowerCh(unsigned char bcd)
{
return ((bcd & 0x0F) + '0');
}
void write_ds1307(unsigned short address,unsigned short w_data)
{
soft_I2C_Start(); // issue I2C start signal
//address 0x68 followed by direction bit (0 for write, 1 for read) 0x68 followed by 0 --> 0xD0
soft_I2C_Write(0xD0); // send byte via I2C (device address + W)
soft_I2C_Write(address); // send byte (address of DS1307 location)
soft_I2C_Write(w_data); // send data (data to be written)
soft_I2C_Stop(); // issue I2C stop signal
}
char timeset()
{
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"1:hour2:min3:sec");
delay_ms(500);
lcd_out(2,1,"use sw4");
delay_ms(500);
timer11=0;
for(timer11=0;timer11<4;)
{
if(set1 ==0)
timer11++;
switch(timer11)
{
case 1: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "1:hour ");
delay_ms(500);
if(set ==0)
{
hour_11=hourset();
write_ds1307(0x22,Dec2Bcd(hour_11)); return 0;
}
break;
case 2: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "2:min ");
delay_ms(500);
if(set ==0)
{
min_11=minset();
write_ds1307(0x23,Dec2Bcd(min_11)); return 0;
}
break;
case 3: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "3:sec");
delay_ms(500);
if(set ==0)
{
sec_11= secset(); write_ds1307(0x21,Dec2Bcd(sec_11));
return 0;
}
break;
}
}
return 1;
}
char dateset()
{
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"1:date2:mon3:yr");
delay_ms(500);
lcd_out(2,1,"use sw4");
delay_ms(500);
timer11=0;
for(timer11=0;timer11<4;)
{
if(set1 ==0)
timer11++;
switch(timer11)
{
case 1: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "1:date ");
delay_ms(500);
if(set ==0)
{
dater_11= dates1();
write_ds1307(0x21,Dec2Bcd(dater_11)); return 0;
}
break;
case 2: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "2:mon ");
delay_ms(500);
if(set ==0)
{
mon_11 = months1();
write_ds1307(0x20,Dec2Bcd(mon_11));return 0; }
break;
case 3: Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1, "3:yr ");
delay_ms(500);
if(set ==0)
{
yr_11= years(); write_ds1307(0x24,Dec2Bcd(yr_11));
return 0;
}
break;
}
}
return 1;
}
char dayset()
{
unsigned char day_11;
day_11=0;
day_11=day1;
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1," inc sw2 dec sw3"); delay_ms(500);
for(;day_11<=7;day_11)
{
if(inc == 0)
day_11++;
if(dec ==0)
{
day_11--;
}
switch(day_11)
{
case 1: lcd_out(1,1,"sun"); delay_ms(500);
break;
case 2: lcd_out(1,1,"mon");delay_ms(500);
break;
case 3: lcd_out(1,1,"tue"); delay_ms(500);
break;
case 4: lcd_out(1,1,"wed"); delay_ms(500);
break;
case 5: lcd_out(1,1,"thu"); delay_ms(500);
break;
case 6: lcd_out(1,1,"fri"); delay_ms(500);
break;
case 7: lcd_out(1,1,"sat"); delay_ms(500);
break;
}
if(set == 0)
{
write_ds1307(0x25,Dec2Bcd(day_11));
return 0;
}
}
return 1;
}
char hourset()
{ Lcd_Cmd(_LCD_CLEAR); lcd_out(1,1," inc sw2 dec sw3");
delay_ms(500);
hour11=0;
hour11=hour1;
for(;hour11<25;)
{
if(inc == 0)
hour11++;
if(dec ==0)
hour11--;
pus[0]= hour11/10+48;
pus[1]= hour11%10+48;
pus[2]='\0';
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"hour:");
lcd_out(1,6,pus);
delay_ms(500);
if(set == 0)
return hour11;
} }
char minset()
{ Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1," inc sw2 dec sw3");delay_ms(500);
min11=0;
min11=min1;
for(;min11<60;)
{
if(inc == 0)
min11++;
if(dec ==0)
min11--;
pus[0]= min11/10+48;
pus[1]= min11%10+48; pus[2]='\0';
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"min:");
lcd_out(1,6,pus); delay_ms(500);
if(set == 0)
return min11;
}
}
char secset()
{ Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"inc sw2 dec sw3"); delay_ms(500);
for(sec11=0;sec11<60;sec11)
{
if(inc == 0)
sec11++;
if(dec ==0)
sec11--;
pus[0]= sec11/10+48;
pus[1]= sec11%10+48; pus[2]='\0';
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"sec:"); delay_ms(500);
lcd_out(1,6,pus);
if(set == 0)
return sec11;
}
}
char dates1()
{ Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1," inc sw2 dec sw3");delay_ms(500);
dater11=0;
dater11=date1;
for(;dater11<32;)
{
if(inc == 0)
dater11++;
if(dec ==0)
dater11--;
pus[0]= dater11/10+48;
pus[1]= dater11%10+48; pus[2]='\0';
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"date:"); delay_ms(500);
lcd_out(1,6,pus); delay_ms(500);
if(set == 0)
return dater11;
}
}
char months1()
{ Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1," inc sw2 dec sw3");delay_ms(500);
mon11=0;
mon11=month1;
for(;mon11<12;)
{
if(inc == 0)
mon11++;
if(dec ==0)
mon11--;
pus[0]= mon11/10+48;
pus[1]= mon11%10+48; pus[2]='\0';
Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"mon:"); delay_ms(500);
lcd_out(1,6,pus); delay_ms(500);
if(set == 0)
return mon11;
}
}
char years()
{ Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1," inc sw2 dec sw3"); delay_ms(500);
yr11=0;
yr11=year1;
for(;yr11<99;)
{
if(inc == 0)
yr11++;
if(dec ==0)
yr11--;
pus[0]= yr11/10+48;
pus[1]= yr11%10+48; pus[2]='\0'; Lcd_Cmd(_LCD_CLEAR);
lcd_out(1,1,"year:"); delay_ms(500);
lcd_out(1,6,pus); delay_ms(500);
if(set == 0)
return yr11;
}
}
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