Re: ARMEL on low power mmu-less platforms?
On Tue, Sep 30, 2008 at 11:04:18AM -0500, John Griessen wrote:
> I am just wondering if any kind of debian subset even can be put on a
> machine without MMU? I'm not just interested in these for cost alone,
> but for low power networking in remote places -- sensor networks,
> so the cortex-m3 ARMv7-M CPU is great for that, and one silicon chip
> from luminary has precision time protocol another great reason.
You are expecting to fit debian in 256KB of flash? because that's what
the luminary cortex-m3 chips have... also the 64K of ram included is not
enough to even start ucLinux.
If you really need a operating systems on these (instead of just your
own application running on bare metal), look at eCos.
http://ecos.sourceware.org/
> Since linux-arm has a cortex-m3 linux port (using uclinux methods), I
> wonder if there is any possibility or interest from debian in these kind
> of constrained machines that could never do graphics, just server functions.
Lots people run debian-arm on systems without graphics. However, quite a
bit of RAM (32MB) and storage (1GB+) are still needed. The emdebian
project is working on driving those requirements down.
As for uClinux, it's not binary compatible with normal Linux, so you
would need to recompile all your applications and libraries.
--
"rm -rf" only sounds scary if you don't have backups
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