Though I like all of you and I love this site but i dont like the way all are treating Brunu Marcio
It is an implied policy at this site to help anyone create their own product, may that be hardware, software or both. From this implied policy follows that no one should do the actual coding for the poster.

Some basic routines such as IIC, serial in, for all practical purposes are "public domain" and are thus freely shown here.
If I had created routines to read magnetic stripes, these routines would be the property of the company I created them for and to disclose them would be copyright infringement.

thus:
PLEASE, I NEED ROUTINES , NO WORDS.
creates animosity, not help

Erik