Electronic – arduino – Using Arduino to program Amtel AVRs via ICSP header

arduinoavravrdudeprototyping

I have an Arduino (NG) board with an ATMEGA168 AVR micro. The board has a 6 pin ICSP header. Here is what I propose to do, please tell me if it is possible:

  • Remove current ATMEGA168 IC
  • Replace with a new AT AVR of similar series
  • Plug in the programmer to the ICSP header on the Arduino
  • Use avrdude software to program the AVR
  • Remove AVR and install in a socket on my project board and replace the original ATMEGA168 AVR
  • Continue to use the Arduino as normal

I have also thought about installing the 6 pin ICSP header on my project board so I can tweek the software with the chip in place. If I implement this part of the arduino circuit on my project would this be possible.

Schematic

Best Answer

Adding your own ICSP header is easy, however your solution will work just fine, you are just using the Arduino board as a socket with an ICSP already wired up. If your programmer will supply power to the ATMega then do not power the Arduino board any other way (do not connect USB).

Further to Davr's answer - you must always attach ground, but you can leave the V+ free if your board is powered independently.

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