Thanks buddy,I have the following questions
* In RTC why we are first writing and then reading any reason is there and what is the purpose of giving sendi2c(0x0f) in the above program
*In I2C master (receiver) & slave (transmitter) mode: what are the register value for both master & slave
SSPSTAT
SSPCON1
SSPCON2
*which tutorial is best for reading gps and gsm