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Re: is the 2560 flash not actually 256 KBytes? avrdude writes/reads 2612
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From: |
Joerg Wunsch |
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Subject: |
Re: is the 2560 flash not actually 256 KBytes? avrdude writes/reads 261258 bytes |
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Date: |
Tue, 15 Jun 2021 06:30:16 +0200 |
As Didrik Madheden wrote:
> No, the flash is exactly 256*1024 bytes as you expect. I would guess that
> it omits writing trailing 0xFF bytes, since all bytes are 0xFF after
> they're erased anyway.
Exactly. Trailing 0xFF bytes are removed from the downloaded file when
reading flash, because they correspond to erased flash. (When reading
EEPROM, they are preserved.)
--
cheers, Joerg .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)