how to start with 2407?

The 'LF2407 is obsolete and the 'LF2407A is not recommended for new designs.  So unless there is a good reason to choose the LF2407 (already have hardware, have a history of using it, etc) I would recommend looking at a different C2000 MCU.  I would recommend the TMS320F28027 or TMS320F28069 as alternatives.

All of the 'F28027 and 'F28069 example projects can be found within controlSUITE (http://www.ti.com/controlsuite).

If you want to go with the 'LF2407A even though it is not recommended for new designs, some example projects for it can be found at http://www.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=spra755a


Thank you,
Brett

Vikas,

According to the following page you need CCS3.3 with SR12:
http://processors.wiki.ti.com/index.php/Development_Tool_Versions_for_C2000_Support#Code_Composer_Studio

Assuming that you are a student, I'd recommend trying to work with (or have your professor work with) univ@ti.com as described below:
http://processors.wiki.ti.com/index.php/Download_CCS#Code_Composer_Studio_Version_3_Downloads

(as above, I'd recommend moving to a newer device if it becomes possible; however, I understand the necessity to work with tools that are already bought :) )


Thank you,
Brett