Have some troubles with hardware i2c

I try to use hardware i2c on XC161CJ with TimeKeeper M41T56. As examle, take source code from C161 manual, but there are some trouble. May be, some of fachmans have little succesfull example of hw i2c...
Have some troubles with hardware i2c

I try to use hardware i2c on XC161CJ with TimeKeeper M41T56. As examle, take source code from C161 manual, but there are some trouble. May be, some of fachmans have little succesfull example of hw i2c...
I2C ON P89C51RD2(Philips micro controller)

sir, i want to do project on i2c P89C51RD2 (PHILIPS UC)which doen't contain I2C controller. how to implement i2c on that. pls send codes for that
I2C ON P89C51RD2(Philips micro controller)

sir, i want to do project on i2c P89C51RD2 (PHILIPS UC)which doen't contain I2C controller. how to implement i2c on that. pls send codes for that
RF communication between two 51 controllers

Dear Frineds, I have to create a RF communication between two distant 51 microcontrollers, i.e upto 700 meters. I am aware of the microcontrollers but i want to know some details about the RF communications...