Comments (2)
I think those "bootloaders" are just code that runs in normal mode that can simulate the way other bootloaders work (in other words, they are not a protected part of PROGMEM). I suppose you could add a signature for them, if we wanted to check a specific memory address range to contain a certain checksum.
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I'm closing this because this hardware does not technically have a bootloader, and it would be tedious to check bootloader signatures in some random part of PROGMEM, particularly if the developers of those bootloaders happen to keep updating them, so the signatures would change.
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