[En-Nut-Discussion] arm port (RFC: Changing ARM mode)

duane ellis ethernut at duaneellis.com
Fri Jan 16 12:09:18 CET 2009

 >>Btw: Is there any good / easy to understand documentation about this
 >> very low low level arm programming?

Not really, I just banged my head against the brick wall for a long time.

As far as app/kernel code in NUT, everything should run in SYS mode period.

Forget 100% about using user mode until you want to introduce *TRUE* 
divided territory - ie:  User Land and Kernel Land - *AND* really build 
two different applications - the kernel as an image, and the user 
applications as an image.  Truth is, NUT runs on *SMALL* platforms, 
where that added cost in flash space is just large.


More information about the En-Nut-Discussion mailing list