[En-Nut-Discussion] Nut/OS on ATMEGA32 or ATMEGA64 possible?

[George Ruinelli]

Hello all

I created successfully an application with my ethernut 21.b to control an RGB 
LED with an IR remote control.

Now I would like to build a board by it myself, containing only the necessary 
components. Size/pin wise it would fit into an ATMEGA32, or ATMEGA64, but are 
they supported by Nut/OS? [1] Mentioned only support for ATMEGA128 and 
TMEGA2561, same in the Nut/OS configurator.

Is it still possible to download an ATMEGA128 application to an ATMEGA32 or 
ATMEGA64? Of course the flash/ram size and available options have to be met.
Does it need special compiler options? Or is it not easily possible due the 
requirements of Nut/OS (registers, timers, ...)

If it is involving a lot of changes, it might be easier to invest the extra 
money/space and buy an ATMEGA128, even it would be over-sized.

[1] http://www.ethernut.de/en/firmware/nutos.html

Thank you for your help/suggestions
George
-- 
George Ruinelli
Hornstr. 19
8308 Illnau - SWITZERLAND