Kunalgupta 
I want to upload my Atmega 2560 with ftdi rs232 Programmer through atmel studio 7.0 .
So is it possible ??? If yes then how should i proceed .
PS
1) Bootloader Programmer is already uploaded on the controller
2) i have checked AVRdude , but their it is not showing ftdi rs232 Programmer on doing
**avrdude -c?** Command.
Which bootloader are you using?
Kunalgupta The one given in the Arduino ide
Kunalgupta I have seen this post but as i mentioned i want to upload from atmel studio 7.0 IDE not with Arduino IDE.
clawson 
But AS7 itself can't do it? All you'll end up doing is configuring an "external command" anyway. So why bother, why not simply run the Arduino IDE if that is already the tool for the job?
Kunalgupta But AS7 itself can't do it?
You are asking this or telling me?
All you'll end up doing is configuring an "external command" anyway.
Yeah i want to know that external command ... we can add external tool in AS7 and then we write command for that tool in argument section starting with avrdude
like this
Now -c is used for selecting the programmer but i did not find any option for selecting ftdi adapters for doing so
Kunalgupta Well i might have solved this issue , got some leads
But one more error is now coming,
now when i connect my usbasp programmer to arduino uno ICSP pins , it shows this error
C:\Users\kunal\Desktop\work\books\bootloaderofavr>avrdude -pm328p -cusbasp -Pusb -b115200
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: error: programm enable: target doesn't answer. 1
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
So as this error comes because of invalid connections or inproper power supply. I reviewed all my connections and power supply but still this error was coming.
Then i connect same usbasp programmer to the arduino Mega for same purpose there is no error like this and it is all positive like this :
C:\Users\kunal\Desktop\work\books\bootloaderofavr>avrdude -pm2560 -cusbasp -Pusb -b115200
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0x1e9801
avrdude: safemode: Fuses OK
avrdude done. Thank you.
So , Now i am not able to makeout why this thing is happening, same USBASP programmer , checked all connections and power supply but for one Board all is positive and for other it shows error.
Is there anything like this that for working on AVRDUDE , some special firmware has to be their in the controller.
PS
Both controllers can be successfully programmed using ARDUINO IDE
I want to upload my Atmega 2560 with ftdi rs232 Programmer through atmel studio 7.0 .
So is it possible ??? If yes then how should i proceed .
Is the 2560 board an arduino board or one that you made?
If yours, did you connect the DTR line through a capacitor to the Reset pin?
(This is how arduino IDE resets the target board before downloading.)
Since you have the arduino ide, use it to capture the avrdude command that it
uses to download a schetch to the 2560 using the bootloader.
For adding an external tool to Atmel Studio, see this thread (Link)
where david.prentice shows how to set up an external tool to use a batch file
to command avrdude to do the download.
