Re: [uCsimm] uCLinux RAM Requirements

From: Rob Scott (rscott@mtrob.fdns.net)
Date: Tue Jan 04 2000 - 21:49:16 EST


On Wed, 5 Jan 2000, Greg Ungerer wrote:

>
> Hi Sam,
>
> Sam Saprunoff wrote:
> > I believe this question has been asked before, but for some reason I cannot
> > locate the answer...
> >
> > What is the minimum memory requirements for uCLinux? Given the fact that
> > the uCSimm has 2 MB Flash and 8 MB RAM, I suspect that it is less than this
> > :)
>
> You can run it in 1MB of RAM only. At least I have boards with 1MB of
> RAM that I run uClinux/ColdFire on. You don't get a lot in only 1MB,
> but you can do it.
>
> I am pretty sure you could go 512K FLASH and 512K of RAM. The load image
> for my 1MB RAM environment is ~500K.
>

Actually, for the ColdFire eLITE eval board, it's possible to run entirely
out of the 1 MB SRAM. There's even a "make config" option for it :-)

Rob

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