im interfacing ds12887 with at89s52 to on rtc. i'm having problem in coding of xbyte in keil c.could you help me for code
No - I am not going to do your work for you for free.
I don't think anyone else is going to, either.
Have you looked on the Maxim website for application notes & example code?
Have you googled?
He is one of a large number of people who can't understand that what is important to him isn't important to other people. That we are also real people with our own agendas, projects and priorities. And that we aren't so bored that we will automatically get in line to spend our time and help people who can't even bother to ask real questions or explain where they are stuck.
We aren't NPC in a computer game.
Helping is one thing; just doing their work for them ("send me code") is quite another!
As silly as the OP's post is, there is also the possibility of being trolled.
Helping is one thing; just doing their work for them ("send me code") is quite another! give a man a log and he is warm for a day, set him on fire and he is warm for the rest of his life.
Erik