Programming via ISP

i'm little confused something, hoping can give me clear-cut answer: if have arduino chip bootloader on it, know can programmed via serial, can programmed via isp?  ever read isp used upload bootloader - used basic sketch uploads?  do different in arduino ide when doing that?

thanks!

quote from: osmosis311 on nov 11, 2015, 01:09 am

i'm little confused something, hoping can give me clear-cut answer: if have arduino chip bootloader on it, know can programmed via serial, can programmed via isp?  all ever read isp used upload bootloader - used basic sketch uploads?  do different in arduino ide when doing that?
thanks!

yes, can upload sketch using isp. need separate isp programmer. use usbasp isp programmer, arduino can programmed this, using "arduinoisp" sketch, found in ide under >file >examples.
very handy if have chip on breadboard , want upload program it. made small pcb zif socket programming atmega328p chips usbasp programmer.

to use isp programming, in ide select relevant programmer under >tools >programmer, (select "arduino isp" if using arduino "arduinoisp" sketch), select >sketch >upload using programmer upload sketch.
there's lot of useful info here, on nick gammon's site:- atmega chip stand-alone programmer upload .hex files

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