C'mon. You can surely do better than "gimme code"! And although all these gents seem like they are sermonising, I do agree with them in principle. Read the datasheets and esp. check out the website of Dallas & Maxim. (www.maxim-ic.com) They've got wonderful appnotes with almost the entire code out there in C. Try understanding what is being done. Here's where the flowcharting comes in. You seem to be heading towards a deadline...so that's all the more reason to hurry up and get busy.

BTW, you can have a look at:
8051 Microcontroller and Embedded Systems, The
Rolin McKinlay, Janice Mazidi, Muhammad Mazidi
Prentice Hall India.

Great book with an entire chapter dedicated to interfacing the ds12887. Get your hands on it at the earliest and understand the method, rather than the code. You can crack it on your own, please have faith in your own capabilities.

Cheers!
ASG.