Re: [avrdude-dev] [bug #37812] STK500V2 not programming "blank" pages when not erasing flash (-D)

[Joerg Wunsch]

As Simon Sabato wrote:

> 1) there is an assumption built in that an "erased" page is full of
> 1's.  It is slightly inelegant to not have any way of working around
> that assumption in a system which behaved differently, should such a
> system ever be implemented.

That system wouldn't be an AVR anymore, as this assumption is based on
the way NOR flash works.

Apart from this (and apart from Arduino's buggy bootloader), you're
flogging a dead horse.  The SVN version keeps track of which memory
regions have been loaded from an input file and which haven't.

Nevertheless, Arduino should fix their bootloader bug.  If they are
asked for a chip erase, they are responsible to act as if the chip
had been erased, no matter *how* they are going to implement it.
Everything else is asking for trouble.
-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)