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Note: get the latest versions of my hex2bin and hex2xxdhex functions in my eRCaGuy_dotfiles repo here: .bash_useful_functions.

Going further: comparing hex/binary files in meld

Going further: comparing and analyzing hex/binary file differences using objcopy, xxd, and meld

I present a function below to allow this:

hex2bin path/to/myfirmware1.hex
hex2bin path/to/myfirmware1.hex path/to/myfirmware2.hex
hex2bin myfirmware1.hex myfirmware2.hex myfirmware3.hex myfirmware4.hex
# etc.