programming DS1307 and PIC18f452 with C18

[baby_1]

Hello
here is my program

#include <p18f452.h>
#include <delays.h>
#include<stdio.h>
#include <usart.h>
#include<sw_i2c.h>
#include "LCD.h"


#pragma config OSC=HS
#pragma config WDT=OFF
#pragma config PWRT=ON
#pragma config LVP=OFF

unsigned char x;

void babys(){
SWStartI2C();
SWPutcI2C(0xd0);
SWPutcI2C(0);
SWPutcI2C(0);
SWStopI2C();
}

void babyx(){
SWStartI2C();
SWPutcI2C(0xd0);
SWPutcI2C(0);
SWRestartI2C();
SWPutcI2C(0xd1);
x=SWReadI2C();
SWStopI2C();
}


unsigned char BCD2UpperCh(unsigned char bcd)
{
return ((bcd >> 4) + '0');
}

unsigned char BCD2LowerCh(unsigned char bcd)
{
return ((bcd & 0x0F) + '0');
}


void main(void){
unsigned char msg[17];

SSPSTATbits.SMP=1;
SSPSTATbits.CKE = 0;

SSPCON1bits.SSPEN=1;
SSPCON1bits.SSPM3=1;
SSPCON1bits.SSPM2=0;
SSPCON1bits.SSPM1=0;
SSPCON1bits.SSPM0=0;

SSPCON2bits.RCEN=1;
SSPCON2bits.SEN=1;
SSPCON2bits.GCEN=1;



TXSTA=0x22;
TRISCbits.RC3=0;
TRISCbits.RC4=0;
RCSTAbits.SPEN=1;
SPBRG=12;

TRISDbits.RD2=0x0;
lcdinit();
cls();

babys();

    while(1)
    {
    babyx();
    locate(1,1);
    sprintf(msg,"Second(BCD):%d   ",x);
    lcdprint(msg);
    Delay100TCYx(10);
    if(x<200)
    {
    locate(2,1);
    sprintf(msg,"Second(BCD):%d   ",x);
    lcdprint(msg);
    Delay100TCYx(10);  
    }

    Delay10KTCYx(10);
    }
}

in this program when is reset the SSPCON1bits.SSPEN or set it SSPCON1bits.SSPEN=0; it i see some puls in PORTC.3 but when i changed it into SSPCON1bits.SSPEN=1; it doesn't show me any puls but in the datasheet it shows me that (SSPEN=1;Enables the serial port and configures the SDA and SCL pins as the serial port pins)? !!!!

could you tell me what is my problem to use ds1307 and PIC18f452, because i see only 254 or 255 in bcd mode!!! i pulled up the scl and sda with 10kohm resistor

 

[baby_1]

Hello
I changed my program again

 #include <p18f452.h> 
 #include <delays.h> 
 #include<stdio.h> 
 #include <usart.h> 
 #include<i2c.h> 
 #include "LCD.h" 
 
 
 #pragma config OSC=HS 
 #pragma config WDT=OFF 
 #pragma config PWRT=ON 
 #pragma config LVP=OFF 
 
 unsigned char x; 
 unsigned char x3; 
 unsigned char x4; 
 
 void babys(){ 
 StartI2C(); 
 putcI2C(0xd0); 
 IdleI2C(); 
 putcI2C(0); 
 IdleI2C(); 
 putcI2C(0x00);IdleI2C();IdleI2C(); 
 putcI2C(0b01000110);IdleI2C();IdleI2C(); 
 putcI2C(0x00);IdleI2C();IdleI2C(); 
 IdleI2C(); 
 StopI2C(); 
 } 
 
 void babyx1(){ 
 StartI2C(); 
 putcI2C(0xd0); 
 IdleI2C(); 
 putcI2C(0); 
 IdleI2C(); 
 RestartI2C(); 
 putcI2C(0xd1); 
 IdleI2C(); 
 x=ReadI2C();IdleI2C();AckI2C();IdleI2C(); 
 x3=ReadI2C();IdleI2C();AckI2C();IdleI2C(); 
 x4=ReadI2C();IdleI2C();AckI2C();IdleI2C(); 
 IdleI2C(); 
 StopI2C(); 
 } 
 
 
 unsigned char hey(unsigned char n) 
 { 
     unsigned char x1; 
         unsigned char x2; 
         x1=((n>>4) & 0x7) *10; 
         x2=n<<4; 
         x2=x2>>4; 
         x1=x1+x2; 
 
 return x1; 
 } 
 
 void main(void){ 
 unsigned char msg[17]; 
 
 
 
 SSPADD = 0x09;               // SSPADD = 09 for 100K; 
 OpenI2C(MASTER, SLEW_OFF);   // 19 for 50K 
 SSPSTATbits.CKE=0;           //SMB Bus off  
 
 TXSTA=0x22; 
 TRISCbits.RC3=0; 
 TRISCbits.RC4=0; 
 RCSTAbits.SPEN=1; 
 SPBRG=12; 
 
 TRISDbits.RD2=0x0; 
 lcdinit(); 
 cls(); 
 
 babys(); 
 
     while(1) 
     { 
     babyx1(); 
     locate(1,1); 
     if(x3<100 && x4<100){ 
     sprintf(msg,"%d:%d:%d   ",hey(x4),hey(x3),hey(x)); 
     lcdprint(msg); 
     } 
     Delay10KTCYx(10); 
     } 
 }

it works but not fine :sad:

  if(x3<100 && x4<100){

because it shows me something wrong and high number and i prevent to show the?why this happend?how can solve the problem?

setting time function is

void babys(){ 
 StartI2C(); 
 putcI2C(0xd0); 
 IdleI2C(); 
 putcI2C(0); 
 IdleI2C(); 
 putcI2C(0x00);IdleI2C();IdleI2C(); 
 putcI2C(0b01000110);IdleI2C();IdleI2C(); 
 putcI2C(0x00);IdleI2C();IdleI2C(); 
 IdleI2C(); 
 StopI2C(); 
 }

but it set timer after 5-6 reset the circuit,why?

what is my fault?