As I understand, I can use Arduino as ISP. Most instructions start with "load ArduinoISP from examples".
But then I want to load existing
.hex file to the target chip. E.g.
AvrDude -> ArduinoBoard+ArduinoISP -> targetChip
And I fail miserably to find proper instructions though I believe this is possible and perhaps even already explained somewhere. I could not find instruction mainly because keywords yield instructions on many related but different topics.
I suspect that as Arduino uses avrdude I can sneak how it works when programming via ArduinoISP... At least I'm trying in this direction right now, but I would be glad if someone can help me to save the time.
UPD I've succeeded with the help of the answer below. The last thing to mention - I hate arduino's instruction for giving an image instead of specifying wiring. As I understand it is like:
- pin 10 to reset
- pin 11 to mosi
- pin 12 to miso
- pin 13 to sck