Re: [avr-chat] how to program arduino with avrdude and AVRISPmkII *without* nuking bootloader?

[Joerg Wunsch]

Britton Kerin <address@hidden> wrote:

> I'd like to get the AVRISPmkII programming to be that fast, and also
> not necessarily nuke the bootloader.

Impossible.  Well, almost: it's possible exactly once only, by the
time the application section is still unprogrammed, so you don't have
to issue a chip erase command first.

Next time, the application section has to be erased, and the only
method the ISP algorithm offers for this is a chip erase, which will
(obviously) also erase the bootloader.  The ISP algorithm doesn't
offer a page erase capability.

(All this applies to classic AVRs: Xmegas are organized differently.)

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

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