[SOLVED] DS1307 Reading Problem with PIC16F877A (URGENT PLS)

#include <htc.h>
#include<string.h>

#define _XTAL_FREQ 20000000

#define LCD_DATA PORTD
#define RS PORTBbits.RB0
#define RW PORTBbits.RB2
#define EN PORTBbits.RB1

//Function Prototype
void lcd_init();
void lcdcmd(unsigned char value);
void lcddata(unsigned char value);
void lcdstr(unsigned char msg[]);
void i2c_init();
void i2c_start(void);
void i2c_Ack();
void i2c_Nack();
void i2c_restart(void);
void i2c_stop(void);
void i2c_wait(void);
void i2c_send(unsigned char dat);
unsigned char rtc1307_read(unsigned char address);
unsigned char i2c_read(void);
unsigned char BCD2UpperCh(unsigned char bcd);
unsigned char BCD2LowerCh(unsigned char bcd);

unsigned char sec,min,hour;
unsigned char flag = 0;

void main()
{
	TRISB = 0x00;
	TRISC = 0xFF;
	TRISD = 0x00;
	lcd_init();
	lcdcmd(0x80);
	__delay_ms(10);
	lcdstr("RTC Test");
	i2c_init();	//To Generate the Clock of 100Khz
	i2c_start();
	i2c_send(0xD0);
	i2c_send(0x00);
	i2c_send(0x80);	//CH = 1 Stop oscillator
	i2c_send(0x05);
	i2c_send(0x06);
	i2c_send(0x01);	//Sunday
	i2c_send(0x01);	//1Date
	i2c_send(0x01);	//1 Jan
	i2c_send(0x12);	//2012
	i2c_stop();
	//Have to start the Clock again
	i2c_start();
	i2c_send(0xD0);
	i2c_send(0x00);
	i2c_send(0x00);	//start Clock
	i2c_stop();
	
	while(1)
	{
		i2c_start();
		i2c_stop();
		lcdcmd(0x01);
		sec = rtc1307_read(0x00);
		/*min = rtc1307_read(0x01);
		__delay_ms(1);
		hour = rtc1307_read(0x02);
		__delay_ms(1);
		lcdstr("Time:");
		lcddata(BCD2UpperCh(hour));
		lcddata(BCD2LowerCh(hour));
		lcddata(':');
		lcddata(BCD2UpperCh(min));
		lcddata(BCD2LowerCh(min));
		lcddata(':');*/
		lcddata(BCD2UpperCh(sec));
		lcddata(BCD2LowerCh(sec));
		__delay_ms(100);
	}	
}

//Fnction Definition
void lcd_init()
{
	lcdcmd(0x38);
	__delay_ms(1);
	lcdcmd(0x0E);	
	__delay_ms(1);
	lcdcmd(0x0C);
	__delay_ms(1);
}
void lcdcmd(unsigned char value)
{
	LCD_DATA = value;
	RS = 0;
	RW = 0;
	EN = 1;
	__delay_ms(1);
	EN = 0;
}
void lcddata(unsigned char value)
{
	LCD_DATA = value;
	RS = 1;
	RW = 0;
	EN = 1;
	__delay_ms(1);
	EN = 0;
}
void lcdstr(unsigned char msg[])
{
	unsigned int i,len;	
	len = strlen(msg);
	for(i=0;i<len;i++)
	{	
		lcddata(msg[i]);
		__delay_ms(1);
	}
}
void i2c_init()
{
	TRISC3 = 1;
	TRISC4 = 1;
	SSPSTAT |= 0x80; //Slew Rate Disabled
	SSPADD = 49;
	
	SSPCON=0b00101000;			//Master mode
	SSPADD = 49;
	/*SSPEN = 1
	Enables the Serial Port and configures the SDA and SCL
	Pins as the Serial Pins
	SSPM3:SSPM0 --> 1000
	I2C Master Mode
	Clock = Fosc/4*(SSPADD+1)
	*/
}

void i2c_start(void)
{
	SEN = 1;
	//SSPCON2 bit 0
	while (SEN == 1)
		continue;
	//SEN =1 initiate the Start Condition on SDA and SCL Pins
	//Automatically Cleared by Hardwre
	// 0 for Idle State
}

void i2c_restart(void)
{
	RSEN = 1;
	//SSPCON2 bit 1
	while (RSEN == 1)
		continue;
	//RSEN = 1 initiate the Restart Condition
	//Automatically Cleared by Hardware
}

void i2c_stop(void)
{
	PEN=1;
	while(PEN==1)
		continue;
}

void i2c_wait(void)
{
	while( R_W == 1)
		continue;
	if(ACKSTAT == 1)
	{
		i2c_stop();
	}
	//If ACKSTAT bit is 0 Acknowledgment Received Successfully
	//Otherwise Not
}

void i2c_send(unsigned char dat)
{
	SSPBUF = dat;    /* Move data to SSPBUF */
    while(BF);       /* wait till complete data is sent from buffer */
    i2c_wait();       /* wait for any pending transfer */
}

unsigned char i2c_read(void)
{
	unsigned char temp;
    RCEN = 1;        /* Enable data reception */
    while(!BF);      /* wait for buffer full */
    temp = SSPBUF;   /* Read serial buffer and store in temp register */
    i2c_wait();       /* wait to check any pending transfer */
    return temp;     /* Return the read data from bus */
}

unsigned char BCD2UpperCh(unsigned char bcd)
{
	unsigned char temp;
 	temp = bcd >> 4;
 	temp = temp | 0x30;
 	return(temp);	
}
unsigned char BCD2LowerCh(unsigned char bcd)
{
	unsigned char temp;
 	temp = bcd & 0x0F; //Making the Upper 4-bits
 	temp = temp | 0x30;
 	return(temp);
}

unsigned char rtc1307_read(unsigned char address)
{
	unsigned char temp1;
	i2c_start();
	i2c_send(0xD0);
	i2c_send(address);
	i2c_restart();
	i2c_send(0xD1);
	temp1 = i2c_read();
	i2c_stop();	
	return temp1;
}
void i2c_Ack()
{
	ACKDT = 0;	//Acknowledge Data Bit, 0 = Ack
	ACKEN = 1;	//Acknowledge Enable Bit
	while(ACKEN);
	//Wait for ack bit to send on bus
}
void i2c_Nack()
{
	ACKDT = 1;
	ACKEN = 1;	//Acknowledge Enable Bit
	while(ACKEN);
}