how to start with omap4 processor

Start looking at xload and uboot code. After this you should understand Linux kernel and after that android.

You mentioned doing your own circuit, so I am wondering if you are thinking about doing the hardware design, as well as the software.  Panda is a good place to start with a design because you have schematics available in OrCad format as well as a layout in Allegro format to reference.  If you are completely unfamiliar with hardware design, a device as complex as the OMAP may not be the best platform to start with but you would have Panda available as a reference and roadmap toward a good design.  If you need help with the actual hardware design process, this is probably not the forum you require for that level of assistance.

Mike

Michelle,

It is not really possible for you to start with OMAP from scratch; rather, you should just make the necessary changes to the TI standard software releases to account for differences on your platform and to add any desired customizations.  We have an application note that explains how to bring up a custom OMAP4 platform, specifically the changes you need to make to the x-loader, u-boot, and kernel of a TI standard release so that they can run on your board.  Please contact your TI representative for access to this document.

Regards,
Gina 

Thank you very much for the help, i actually have some experience in the Linux kernel and Android, i understand how do the work, i'll contact our TI representative to ask about this.

i also would like to ask you, how or what could i do to make my device to be recognized by the Android Google Play store, i mean, what could i do to make it have an id and be recognized as an android device, with who could i talk about this, is just that i asked in google forums but no one answered and this forums have a really great support and maybe you could know something about it.

Best Regards.