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The Puma
Joined: 23 Apr 2004
Posts: 227
Location: The Netherlands
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| PCF8583 Clock ic |
 Posted: Fri Jul 14, 2006 8:19 am |
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Can someone help me with a code to display hours, minutes,seconds
and on the second line day, month, year
I tried several think but i have only mintes and seconds on the lcd |
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epideath
Joined: 07 Jun 2006
Posts: 47
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| Posted: Fri Jul 14, 2006 8:57 am |
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| please post some of your code. |
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The Puma
Joined: 23 Apr 2004
Posts: 227
Location: The Netherlands
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| Posted: Fri Jul 14, 2006 9:02 am |
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Here is the code
| Code: | #include <18F4620>
#use delay(clock=20000000)
#fuses HS,NOWDT,NOBROWNOUT,NOPUT,NOLVP,DEBUG,NOSTVREN,NOPROTECT
#include <flex_lcd420>
#include <pcf8583>
void main() {
lcd_init();
while (TRUE) {
Gettime();
lcd_gotoxy(1,1);
printf(lcd_putc,"Seconds: %01u%01u:%01u%01u",time[2],time[3],time[0],time[1]);
delay_ms(50);
}
}
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| Code: |
#ifndef PCF8583_SDA
#define PCF8583_SDA PIN_C4
#define PCF8583_SCL PIN_C3
#endif
#use i2c(master,sda=PCF8583_SDA,scl=PCF8583_SCL,FORCE_HW,RESTART_WDT)
// Defines address for Read and Write ON I2C BUS
#define PCF8583_ADDR_WRITE 0xA0
#define PCF8583_ADDR_READ 0xA1
// Defines internal registers
#define CONTROL_STATUS_REG 0x00
#define HUNDREDTH_OF_SEC_REG 0x01
#define SECONDS_REG 0x02
#define MINUTES_REG 0x03
#define HOURS_REG 0x04
#define YEAR_DATE_REG 0x05
#define WEEKDAYS_MONTHS_REG 0x06
#define TIMER_REG 0x07
#define ALARM_CONTROL_REG 0x08
#define ALARM_HUNDREDTH_OF_SEC 0x09
#define ALARM_SECONDS 0x0A
#define ALARM_MINUTES 0x0B
#define ALARM_HOURS 0x0C
#define ALARM_DATE 0x0D
#define ALARM_MONTH 0x0E
#define ALARM_TIMER 0x0F
#define FREE_RAM_START 0x10
#define FREE_RAM_END 0xFF
// Defines seconds register (RESET STATE: ???? ????)
struct {
byte UNITS_BCD :4; // Unit seconds BCD format
byte TENS :3; // Ten seconds, 0 to 5 binary
byte NOT_UNUSED :1; // NOT USED
} SECONDSREG;
// Defines minutes register (RESET STATE: ???? ????)
struct {
byte UNITS_BCD :4; // Unit minutes BCD format
byte TENS :3; // Ten minutes, 0 to 5 binary
byte NOT_UNUSED :1; // NOT USED
} MINUTESREG;
// Defines hours register (RESET STATE: 0000 0000)
typedef struct {
byte UNITS_BCD :4; // Unit hours BCD format
byte TENS :2; // Ten hours, 0 to 2 binary
byte AM_PM_FLAG :1; // 0 -> AM, 1 -> PM
byte FORMAT :1; // 0 -> 24h format, 1 -> 12h format
} HOURSREG;
// Defines yeardate register (RESET STATE: 0000 0001)
typedef struct {
byte UNIT_DAYS_BCD :4; // Unit days BCD format
byte TEN_DAYS :2; // Ten days, 0 to 3 binary
byte YEAR :2; // 0 to 3 binary, reads as 0 if the mask flag is set
} YEARDATEREG;
byte time[4];
byte decD2hexD(byte value) {
return(value%10+16*(value/10));
}
byte hexD2decD(byte value) {
return(value%16+10*(value/16));
}
byte pcf8583_read(byte address) {
byte data;
i2c_start();
i2c_write(PCF8583_ADDR_WRITE);
i2c_write(address);
i2c_start();
i2c_write(PCF8583_ADDR_READ);
data=i2c_read(0);
i2c_stop();
return(data);
}
void Gettime() {
SECONDSREG=pcf8583_read(SECONDS_REG);
MINUTESREG=pcf8583_read(MINUTES_REG);
time[0]=hexd2decD(SECONDSREG.TENS);
time[1]=hexd2decD(SECONDSREG.UNITS_BCD);
time[2]=hexd2decD(MINUTESREG.TENS);
time[3]=hexd2decD(MINUTESREG.UNITS_BCD);
}
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treitmey
Joined: 23 Jan 2004
Posts: 1094
Location: Appleton,WI USA
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Guest
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| Posted: Tue Jul 18, 2006 9:55 am |
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Nobydy can help me with the code how to display the year field?
Please give me some support |
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