Hi I have arduino Nano which I want to flush and have the Uno's firm ware running on it (I need the watchdog). I am using another Uno board as ISP programmer. This is what I am doing exactly:
1- Had the ArduinoISP example loaded onto the Uno bard. 2- Had the port selected of the Uno and the programmer type to "Arduino as ISP". 3- I used pretty much the standard wiring between the two devices: 4- I am plugging only the Uno to the usb port (the nano is being powered by the UNO). 5- I hit burn bootloader and I am getting this:
avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check. Error while burning bootloader.
I am using windows 7 machine and 1.6.4 arduino IDE. What is wrong with this set up and what is it that I am missing?
Thx in advance.