I did a mistake and pushed the program button on the stk600.
It entered the firmware state, and I couldn't get it out of it until I connected a atmel studio and tried to update (but I have the updated ver.)
After the update, I can't upload any code.
When I try to upload using avrdude plugin on eclipse I get this message:
Programmer "stk600" could not initialize the target hardware. Please Check that the target hardware is connected correctly Reason: avrdude: initialization failed, rc=-1
and when I try using Atmel Studio I get this message:
Faield to enter programming mode. Error status received from tool: Result received is 0x03. Unable to enter programming mode. Verify device selection, interface settings, target power and connections to the target device