I tried looking for info on this a while ago, but couldn't find what I was looking for..
It may already be up, but I can't seem to find it, so sorry if I'm doubling this up in any fashion.
ISP via Arduino is all well and good.
But makes me wonder if I can do this as a standalone?
By this I mean, no PC / USB / ISP. Just straight up IC to IC?
This would enable bootloders and sketches to be loaded direct from one 328 straight on to another via ICSP.
I understand that some sketches etc may be too large, so an EEPROM or similar would be required to store and call from..
Maybe having a usr select for different sketchs (eg. Fuses, Bootloader, Sketch A / B / C.) and obviously an LCD or something similar for usr feedback.
All this aside, how would one go about interpreting and converting the data so that you could pass a sketch from on IC to another in this fashion?
eg. sending a .hex file from the master 328 to the slave?
What are the processes required, or how could someone go about converting .hex / .bin etc in to an understandable format to transmit via ICSP?
Any help or info on this would be useful.
Thanks in advance.