Hi friends.
I have a trouble with my arduino board. The board is arduino atmega 2560. I do not like Arduino IDE so I use Avr studio for programming and I used another programmer for downloading to the chip but I had a fault with fuse bits. Now microcontroller only wokrs with external oscilator (not work with crystal), I can not program it, can not download into the chip also. I did do your Atmega fusebit doctor and connected it to my arduino board but I did not work out the problem. Befor press restart button I did not see any signal on the red and green LED, after press restart button I saw the green LED fast flashing, and the red LED also flashes fast. After that both of them are off.
Could you what is the problem and if you can please, tell me the way to solve it!
Thank you.