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ds1307 rtc ram read and write issue

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raman00084

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the s1307 rtc has 56x8 ram. please send sample program for writing and reading in ram. i am using pic ccs complier
kindly send sample program are algorithim
 

Here is sample code for pic18f by using C18 compiler. Before this, once go through the ds1307 data sheet and pic i2c registers
How to start & stop i2c.......
Code: 
void  rtc_setTime()
{
//i2c_Wait();
i2c_start();
i2c_write(0xa2);
i2c_write(0x02);
i2c_write (0x00) ; //set sec
i2c_write( 0x00);  //min
i2c_write(0x10);   //hou      10:59:00;
i2c_stop();
}
void  rtc_getTime()
{
i2c_Wait();
i2c_start ( ) ; //transmit  START  condition

i2c_write (0xa2) ;
i2c_write (0x02);
i2c_stop();

i2c_start ( ) ;
i2c_write(0xa3);

seconds =  i2c_read(1) ;
minutes =  i2c_read(1) ;
hours  =  i2c_read(0);
i2c_stop ( ) ;

seconds=seconds&0x7f;
minutes =minutes &0x7f;
hours  = hours &0x3f;

  seconds  =  ((seconds & 0xf0) >> 4)*10 + (seconds & 0x0F);  // Transform seconds
  minutes  =  ((minutes & 0xf0) >> 4)*10 + (minutes & 0x0F);  // Transform minutes
  hours    =  ((hours & 0xf0)  >> 4)*10  + (hours & 0x0F);    // Transform hours

hexmin=minutes;
  LCDCmd(0xCC);
  LCDWriteInt( seconds,2);
    LCDCmd(0xCB);
  LCDWriteString(":");
  LCDCmd(0xC9);
  LCDWriteInt( minutes,2);
  LCDCmd(0xC8);
  LCDWriteString(":");
  LCDCmd(0xC6);
  LCDWriteInt( hours,2);
}
 

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