FreeBSD or other BSD for no-MMU ARM processor ?

[Bruce R. Montague]

 Hi, re:

>>Does anyone know if there is a port of FreeBSD, or any of the
>>other BSDs (e.g. NetBSD) for that matter, which will run on an
>>ARM processor which does NOT have an MMU (Memory Management Unit)?
>
> The general feeling seems to be that without an MMU and the added features
> of memory protection it provides, the heavyweight process-oriented UNIX
> kernel doesn't really offer much advantage over a lighter-weight solution
> like RTEMS or eCos.  The uClinux gang disagrees with this assessment,


Another such light-weight embedded C kernel with unmapped ARM support
that seems to be popular lately is microC/OS, sometimes called
uC/OS or "mucos". My _impression_ is that it is a free open source system
but that a number of companies sell support and a number of embedded
companies specialize in getting it past validation suites in vertical
niche markets, etc.. I think it's been used for digital cameras and such.

 http://www.accu.org/bookreviews/public/reviews/m/m002257.htm

 http://www.cmpbooks.com/product/1057



  - bruce