can anyone please tell me how to program at91sam9260 in keil i dont even have a simple program of an led
Keil does support Atmels AT91SAM9260: http://www.keil.com/dd/chip/4210.htm
With MDK-ARM V5 such a ARM9 based µC is supported by the additional installation of the ARM7/9 Legacy-Pack: www2.keil.com/.../legacy
See also our "Getting Started" Guide at page 7: www2.keil.com/.../
Or use a Keil release contemporaneous with the age of the board. C:\Keil470\ARM\Boards\Atmel\AT91SAM9260-EK\Blinky\Abstract.txt