I am kind of new member.... feeling great being a part of such creative forum..
So here is my question
I am trying to test my AVR dragon using LED blinking, my circuit is as below,
1) AVR -> Atmega328P <- AVR supply ,
All works fine, I am able to enter into the download mode. ( Tools -> Device Programming )
2) AVR -> Atmega328P <- Power supply ( ATX Cabinate supply of my old PC ).
when I am trying to enter into the download mode. It gives error when reading the device ID. I think it is because of the floating ground of the different supply. I have short circuit all the grounds.
My question is how to correct it ???.... Kindly help me to resolve the problem.