Re: [avrdude-dev] Butterfly proposal: Exit upgrade function

[Jan-Hinnerk Reichert]

On Tuesday 03 February 2004 17:03, Martin Thomas wrote:
> >On Thursday 29 January 2004 18:10, Michael Mayer wrote:

> >> What do you think about adding a new exitspec to the -E option
> >> to stop avrdude from sending this final 'E'? What would be a
> >> good name for it? "-E noexitupgrade" or "-E stayupgrademode" is
> >> IMHO much too verbose. Any suggestions?
> >
> >How about "-E reset" and "-E noreset"? This is not technically
> >correct, but describes the behaviour.
> >
> >Cheers
> >  Jan-Hinnerk
>
> For the preinstalled Butterfly bootloader the term reset would be
> "technically correct" the bootloader issues a watchdog reset
> when it receives an "E" since the BOOTRST fuse is blown
> the BF restarts it's bootloader.

> So yes, option -E noreset would be a nice feature if someone
> programs the flash and the eeprom in separate AVRDUDE
> calls. Although I'm not sure if this would work with the current
> (4.3.0) Butterfly programmer init.

Well, it would be a bad idea to do it this, because the effect would 
be the reverse compared to PPI-programmers.

"reset" means that the device stays in reset after programming so the 
application is not executed. While "noreset" means that the main 
application starts.

Cheers
  Jan-Hinnerk