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Message |
bittersweet
Joined: 23 Apr 2008
Posts: 22
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| rtc problem |
 Posted: Fri May 09, 2008 1:44 am |
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Hi,
I want to write date on lcd with ds1302, but I only see
D:00/00/2000
H:00:00:00
Here are the codes
| Code: |
#include <16F877A.H>
#fuses XT,NOWDT,NOPROTECT,BROWNOUT,PUT,NOLVP
#use delay (clock=4000000)
#include <lcd.c>
#include <DS1302.c>
byte saniye, dakika, saat, gun, ay, yil, haftanin_gunu;
void main()
{setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_CCP1(CCP_OFF);
setup_CCP1(CCP_OFF);
lcd_init();
rtc_init();
rtc_set_datetime(9, 06, 8, 4, 10, 18);
while(1)
{
rtc_get_time(saat, dakika, saniye);
rtc_get_date(gun, ay, yil, haftanin_gunu);
printf(lcd_putc, "\fD:%02d/%02d/20%02d", gun, ay, yil);
switch(haftanin_gunu)
{case 1: printf(lcd_putc, "PAZ"); break;
case 2: printf(lcd_putc, "PZT"); break;
case 3: printf(lcd_putc, "SAL"); break;
case 4: printf(lcd_putc, "CRS"); break;
case 5: printf(lcd_putc, "PRS"); break;
case 6: printf(lcd_putc, "[spam]"); break;
case 7: printf(lcd_putc, "CTS"); break;
}
printf(lcd_putc, "\nH:%02d:%02d:%02d", saat, dakika, saniye);
delay_ms(1000);
}
}
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what must I do? |
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treitmey
Joined: 23 Jan 2004
Posts: 1094
Location: Appleton,WI USA
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| Posted: Fri May 09, 2008 7:36 am |
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Is your DS1302 chip wired up like this?
RTC_SCLK ----->PIN_B1
RTC_IO -----> PIN_B3
RTC_RST -----> PIN_B2 |
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bittersweet
Joined: 23 Apr 2008
Posts: 22
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| Posted: Fri May 09, 2008 1:52 pm |
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hi again,
i cope with this problem at proteus but in hardware part date and time is 01/01/2000 00:00...i reset the circuit,it started to show the real time as i set in software.But a few seconds later it turned to show 01/01/2000 00:00 again...
how can i correct the real time?
here's the code:
| Code: |
#include <16F877A.H>
#fuses XT,NOWDT,NOPROTECT,BROWNOUT,PUT,NOLVP
#use delay (clock=4000000)
#define RTC_SCLK PIN_c4
#define RTC_IO PIN_c5
#define RTC_RST PIN_c3
#include <ds1302.c>
#include <lcd.c>
#use rs232 (baud=600, rcv=PIN_C7)
char x;
int say1=0;
int say2=0;
int saniye,dakika,saat,gun,ay,yil,haftanin_gunu;
float temp;
void read()
{ x=getc();}
void fivebyte1()
{
while(1)
{
if(getc()==0xff)
{say2++;
if(say2>=5)
{say2=0;
read();
break;}
}
else {say2 = 0;
break;}
}
}
void fivebyte0()
{
while(1)
{
if(getc()==0x00)
{ say1++;
if(say1>=5)
{say1=0;
fivebyte1();
break;}
}
else say1 = 0;
}
}
void main()
{
setup_timer_2(T2_DISABLED,0,1);
setup_timer_1(T1_DISABLED);
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_CCP1(CCP_OFF);
setup_CCP2(CCP_OFF);
lcd_init();
rtc_init();
rtc_set_datetime(9,6,8,2,11,31);
while(1)
{
fivebyte0();
switch(x)
{
case 'a':
lcd_gotoxy(1,2);
printf(lcd_putc, " TRAFIK YOGUN ");
delay_ms(1000);
break;
case 'b':
lcd_gotoxy(1,2);
printf(lcd_putc, " TRAFIK AKICI ");
delay_ms(1000);
break;
case 'c':
lcd_gotoxy(1,2);
printf(lcd_putc, "TRAFIK COK YOGUN ");
delay_ms(1000);
break;
case 'd':
lcd_gotoxy(1,2);
printf(lcd_putc, " YOL BOS ");
delay_ms(1000);
break;
}
rtc_get_time(saat,dakika,saniye);
rtc_get_date(gun,ay,yil,haftanin_gunu);
lcd_gotoxy(1,1);
printf(lcd_putc,"%02d/%02d/20%02d",gun,ay,yil);
printf(lcd_putc," %02d:%02d:%02d",saat,dakika,saniye);
}
} |
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